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AI-Aided Colonoscopy’s ‘Intelligent’ Module Ups Polyp Detection
Colin J. Rees, a professor of gastroenterology in the Faculty of Medical Sciences at Newcastle University in Newcastle upon Tyne, England, and colleagues compared the real-world clinical effectiveness of computer-aided detection (CADe)–assisted colonoscopy using an “intelligent” module with that of standard colonoscopy in a study in The Lancet Gastroenterology & Hepatology.
They found the GI Genius Intelligent Endoscopy Module (Medtronic) increased the mean number of adenomas detected per procedure and the adenoma detection rate, especially for small, flat (type 0-IIa) polyps, and sessile serrated lesions, which are more likely to be missed.
“Missed sessile serrated lesions disproportionately increase the risk of post-colonoscopy colorectal cancer, thus the adoption of GI Genius into routine colonoscopy practice could not only increase polyp detection but also reduce the incidence of post-colonoscopy colorectal cancer,” the investigators wrote.
“AI is going to have a major impact upon most aspects of healthcare. Some areas of medical practice are now well established, and some are still in evolution,” Rees, who is also president of the British Society of Gastroenterology, said in an interview. “Within gastroenterology, the role of AI in endoscopic diagnostics is also evolving. The COLO-DETECT trial demonstrates that AI increases detection of lesions, and work is ongoing to see how AI might help with characterization and other elements of endoscopic practice.”
Study Details
The multicenter, open-label, parallel-arm, pragmatic randomized controlled trial was conducted at 12 National Health Service hospitals in England. The study cohort consisted of adults ≥ 18 years undergoing colorectal cancer (CRC) screening or colonoscopy for gastrointestinal symptom surveillance owing to personal or family history.
Recruiting staff, participants, and colonoscopists were unmasked to allocation, whereas histopathologists, cochief investigators, and trial statisticians were masked.
CADe-assisted colonoscopy consisted of standard colonoscopy plus the GI Genius module active for at least the entire inspection phase of colonoscope withdrawal.
The primary outcome was mean adenomas per procedure (total number of adenomas detected divided by total number of procedures). The key secondary outcome was adenoma detection rate (proportion of colonoscopies with at least one adenoma).
From March 2021 to April 2023, the investigators recruited 2032 participants, 55.7% men, with a mean cohort age of 62.4 years and randomly assigned them to CADe-assisted colonoscopy (n = 1015) or to standard colonoscopy (n = 1017). Of these, 60.6% were undergoing screening and 39.4% had symptomatic indications.
Mean adenomas per procedure were 1.56 (SD, 2.82; n = 1001 participants with data) in the CADe-assisted group vs 1.21 (n = 1009) in the standard group, for an adjusted mean difference of 0.36 (95% CI, 0.14-0.57; adjusted incidence rate ratio, 1.30; 95% CI, 1.15-1.47; P < .0001).
Adenomas were detected in 555 (56.6%) of 980 participants in the CADe-assisted group vs 477 (48.4%) of 986 in the standard group, representing a proportion difference of 8.3% (95% CI, 3.9-12.7; adjusted odds ratio, 1.47; 95% CI, 1.21-1.78; P < .0001).
As to safety, adverse events were numerically comparable in both the intervention and control groups, with overall events 25 vs 19 and serious events 4 vs 6. On independent review, no adverse events in the CADe-assisted colonoscopy group were related to GI Genius.
Offering a US perspective on the study, Nabil M. Mansour, MD, an associate professor and director of the McNair General GI Clinic at Baylor College of Medicine in Houston, Texas, said GI Genius and other CADe systems represent a significant advance over standard colonoscopy for identifying premalignant polyps. “While the data have been mixed, most studies, particularly randomized controlled trials have shown significant improvements with CADe in detection both terms of in adenomas per colonoscopy and reductions in adenoma miss rate,” he said in an interview.
He added that the main utility of CADe is for asymptomatic patients undergoing average-risk screening and surveillance colonoscopy for CRC screening and prevention, as well as for those with positive stool-based screening tests, “though there is no downside to using it in symptomatic patients as well.” Though AI colonoscopy likely still stands at < 50% of endoscopy centers overall, and is used mainly at academic centers, his clinic has been using it for the past year.
The main question, Mansour cautioned, is whether increased detection of small polyps will actually reduce CRC incidence or mortality, and it will likely be several years before clear, concrete data can answer that.
“Most studies have shown the improvement in adenoma detection is mainly for diminutive polyps < 5 mm in diameter, but whether that will actually translate to substantive improvements in hard outcomes is as yet unknown,” he said. “But if gastroenterologists are interested in doing everything they can today to help improve detection rates and lower miss rates of premalignant polyps, serious consideration should be given to adopting the use of CADe in practice.”
This study was supported by Medtronic. Rees reported receiving grant funding from ARC Medical, Norgine, Medtronic, 3-D Matrix, and Olympus Medical, and has been an expert witness for ARC Medical. Other authors disclosed receiving research funding, honoraria, or travel expenses from Medtronic or other private companies. Mansour had no competing interests to declare.
A version of this article appeared on Medscape.com.
Colin J. Rees, a professor of gastroenterology in the Faculty of Medical Sciences at Newcastle University in Newcastle upon Tyne, England, and colleagues compared the real-world clinical effectiveness of computer-aided detection (CADe)–assisted colonoscopy using an “intelligent” module with that of standard colonoscopy in a study in The Lancet Gastroenterology & Hepatology.
They found the GI Genius Intelligent Endoscopy Module (Medtronic) increased the mean number of adenomas detected per procedure and the adenoma detection rate, especially for small, flat (type 0-IIa) polyps, and sessile serrated lesions, which are more likely to be missed.
“Missed sessile serrated lesions disproportionately increase the risk of post-colonoscopy colorectal cancer, thus the adoption of GI Genius into routine colonoscopy practice could not only increase polyp detection but also reduce the incidence of post-colonoscopy colorectal cancer,” the investigators wrote.
“AI is going to have a major impact upon most aspects of healthcare. Some areas of medical practice are now well established, and some are still in evolution,” Rees, who is also president of the British Society of Gastroenterology, said in an interview. “Within gastroenterology, the role of AI in endoscopic diagnostics is also evolving. The COLO-DETECT trial demonstrates that AI increases detection of lesions, and work is ongoing to see how AI might help with characterization and other elements of endoscopic practice.”
Study Details
The multicenter, open-label, parallel-arm, pragmatic randomized controlled trial was conducted at 12 National Health Service hospitals in England. The study cohort consisted of adults ≥ 18 years undergoing colorectal cancer (CRC) screening or colonoscopy for gastrointestinal symptom surveillance owing to personal or family history.
Recruiting staff, participants, and colonoscopists were unmasked to allocation, whereas histopathologists, cochief investigators, and trial statisticians were masked.
CADe-assisted colonoscopy consisted of standard colonoscopy plus the GI Genius module active for at least the entire inspection phase of colonoscope withdrawal.
The primary outcome was mean adenomas per procedure (total number of adenomas detected divided by total number of procedures). The key secondary outcome was adenoma detection rate (proportion of colonoscopies with at least one adenoma).
From March 2021 to April 2023, the investigators recruited 2032 participants, 55.7% men, with a mean cohort age of 62.4 years and randomly assigned them to CADe-assisted colonoscopy (n = 1015) or to standard colonoscopy (n = 1017). Of these, 60.6% were undergoing screening and 39.4% had symptomatic indications.
Mean adenomas per procedure were 1.56 (SD, 2.82; n = 1001 participants with data) in the CADe-assisted group vs 1.21 (n = 1009) in the standard group, for an adjusted mean difference of 0.36 (95% CI, 0.14-0.57; adjusted incidence rate ratio, 1.30; 95% CI, 1.15-1.47; P < .0001).
Adenomas were detected in 555 (56.6%) of 980 participants in the CADe-assisted group vs 477 (48.4%) of 986 in the standard group, representing a proportion difference of 8.3% (95% CI, 3.9-12.7; adjusted odds ratio, 1.47; 95% CI, 1.21-1.78; P < .0001).
As to safety, adverse events were numerically comparable in both the intervention and control groups, with overall events 25 vs 19 and serious events 4 vs 6. On independent review, no adverse events in the CADe-assisted colonoscopy group were related to GI Genius.
Offering a US perspective on the study, Nabil M. Mansour, MD, an associate professor and director of the McNair General GI Clinic at Baylor College of Medicine in Houston, Texas, said GI Genius and other CADe systems represent a significant advance over standard colonoscopy for identifying premalignant polyps. “While the data have been mixed, most studies, particularly randomized controlled trials have shown significant improvements with CADe in detection both terms of in adenomas per colonoscopy and reductions in adenoma miss rate,” he said in an interview.
He added that the main utility of CADe is for asymptomatic patients undergoing average-risk screening and surveillance colonoscopy for CRC screening and prevention, as well as for those with positive stool-based screening tests, “though there is no downside to using it in symptomatic patients as well.” Though AI colonoscopy likely still stands at < 50% of endoscopy centers overall, and is used mainly at academic centers, his clinic has been using it for the past year.
The main question, Mansour cautioned, is whether increased detection of small polyps will actually reduce CRC incidence or mortality, and it will likely be several years before clear, concrete data can answer that.
“Most studies have shown the improvement in adenoma detection is mainly for diminutive polyps < 5 mm in diameter, but whether that will actually translate to substantive improvements in hard outcomes is as yet unknown,” he said. “But if gastroenterologists are interested in doing everything they can today to help improve detection rates and lower miss rates of premalignant polyps, serious consideration should be given to adopting the use of CADe in practice.”
This study was supported by Medtronic. Rees reported receiving grant funding from ARC Medical, Norgine, Medtronic, 3-D Matrix, and Olympus Medical, and has been an expert witness for ARC Medical. Other authors disclosed receiving research funding, honoraria, or travel expenses from Medtronic or other private companies. Mansour had no competing interests to declare.
A version of this article appeared on Medscape.com.
Colin J. Rees, a professor of gastroenterology in the Faculty of Medical Sciences at Newcastle University in Newcastle upon Tyne, England, and colleagues compared the real-world clinical effectiveness of computer-aided detection (CADe)–assisted colonoscopy using an “intelligent” module with that of standard colonoscopy in a study in The Lancet Gastroenterology & Hepatology.
They found the GI Genius Intelligent Endoscopy Module (Medtronic) increased the mean number of adenomas detected per procedure and the adenoma detection rate, especially for small, flat (type 0-IIa) polyps, and sessile serrated lesions, which are more likely to be missed.
“Missed sessile serrated lesions disproportionately increase the risk of post-colonoscopy colorectal cancer, thus the adoption of GI Genius into routine colonoscopy practice could not only increase polyp detection but also reduce the incidence of post-colonoscopy colorectal cancer,” the investigators wrote.
“AI is going to have a major impact upon most aspects of healthcare. Some areas of medical practice are now well established, and some are still in evolution,” Rees, who is also president of the British Society of Gastroenterology, said in an interview. “Within gastroenterology, the role of AI in endoscopic diagnostics is also evolving. The COLO-DETECT trial demonstrates that AI increases detection of lesions, and work is ongoing to see how AI might help with characterization and other elements of endoscopic practice.”
Study Details
The multicenter, open-label, parallel-arm, pragmatic randomized controlled trial was conducted at 12 National Health Service hospitals in England. The study cohort consisted of adults ≥ 18 years undergoing colorectal cancer (CRC) screening or colonoscopy for gastrointestinal symptom surveillance owing to personal or family history.
Recruiting staff, participants, and colonoscopists were unmasked to allocation, whereas histopathologists, cochief investigators, and trial statisticians were masked.
CADe-assisted colonoscopy consisted of standard colonoscopy plus the GI Genius module active for at least the entire inspection phase of colonoscope withdrawal.
The primary outcome was mean adenomas per procedure (total number of adenomas detected divided by total number of procedures). The key secondary outcome was adenoma detection rate (proportion of colonoscopies with at least one adenoma).
From March 2021 to April 2023, the investigators recruited 2032 participants, 55.7% men, with a mean cohort age of 62.4 years and randomly assigned them to CADe-assisted colonoscopy (n = 1015) or to standard colonoscopy (n = 1017). Of these, 60.6% were undergoing screening and 39.4% had symptomatic indications.
Mean adenomas per procedure were 1.56 (SD, 2.82; n = 1001 participants with data) in the CADe-assisted group vs 1.21 (n = 1009) in the standard group, for an adjusted mean difference of 0.36 (95% CI, 0.14-0.57; adjusted incidence rate ratio, 1.30; 95% CI, 1.15-1.47; P < .0001).
Adenomas were detected in 555 (56.6%) of 980 participants in the CADe-assisted group vs 477 (48.4%) of 986 in the standard group, representing a proportion difference of 8.3% (95% CI, 3.9-12.7; adjusted odds ratio, 1.47; 95% CI, 1.21-1.78; P < .0001).
As to safety, adverse events were numerically comparable in both the intervention and control groups, with overall events 25 vs 19 and serious events 4 vs 6. On independent review, no adverse events in the CADe-assisted colonoscopy group were related to GI Genius.
Offering a US perspective on the study, Nabil M. Mansour, MD, an associate professor and director of the McNair General GI Clinic at Baylor College of Medicine in Houston, Texas, said GI Genius and other CADe systems represent a significant advance over standard colonoscopy for identifying premalignant polyps. “While the data have been mixed, most studies, particularly randomized controlled trials have shown significant improvements with CADe in detection both terms of in adenomas per colonoscopy and reductions in adenoma miss rate,” he said in an interview.
He added that the main utility of CADe is for asymptomatic patients undergoing average-risk screening and surveillance colonoscopy for CRC screening and prevention, as well as for those with positive stool-based screening tests, “though there is no downside to using it in symptomatic patients as well.” Though AI colonoscopy likely still stands at < 50% of endoscopy centers overall, and is used mainly at academic centers, his clinic has been using it for the past year.
The main question, Mansour cautioned, is whether increased detection of small polyps will actually reduce CRC incidence or mortality, and it will likely be several years before clear, concrete data can answer that.
“Most studies have shown the improvement in adenoma detection is mainly for diminutive polyps < 5 mm in diameter, but whether that will actually translate to substantive improvements in hard outcomes is as yet unknown,” he said. “But if gastroenterologists are interested in doing everything they can today to help improve detection rates and lower miss rates of premalignant polyps, serious consideration should be given to adopting the use of CADe in practice.”
This study was supported by Medtronic. Rees reported receiving grant funding from ARC Medical, Norgine, Medtronic, 3-D Matrix, and Olympus Medical, and has been an expert witness for ARC Medical. Other authors disclosed receiving research funding, honoraria, or travel expenses from Medtronic or other private companies. Mansour had no competing interests to declare.
A version of this article appeared on Medscape.com.
FROM THE LANCET GASTROENTEROLOGY & HEPATOLOGY
Noninvasive Microbiome Test May Specifically Identify Crohn’s and Ulcerative Colitis
International researchers have uncovered potentially diagnostic gut microbiome signatures and metabolic pathways associated specifically with ulcerative colitis (UC) and Crohn’s disease (CD).
Targeted droplet digital polymerase chain reaction (ddPCR)‒based quantification of bacterial species led to convenient inflammatory bowel disease (IBD) diagnostic assays that “are sufficiently robust, sensitive and cost-effective for clinical application,” the investigators wrote in a recent study published in Nature Medicine.
“Although traditional modalities used for diagnosis of IBD, including colonoscopy and cross-sectional imaging, are well established, the inconvenience of bowel preparation and radiation represents relevant concerns,” senior author Siew C. Ng, MBBS, PhD, a professor in the Department of Medicine and Therapeutics at the Chinese University of Hong Kong, said in an interview. “Furthermore, existing serological and fecal markers indicate inflammation but lack specificity for IBD.”
Identifying reproducible bacterial biomarkers specific to CD and IBD should enable precise and personalized approaches to detection and management.
As a starting point, the researchers hypothesized that changes in the gut microbiome of IBD patients may reflect underlying functional associations, if not causes, of the disease, said Ng, who is also director of Hong Kong’s Microbiota I-Center (MagIC). “Unlike inflammation, which is a manifestation of the disease, the gut microbiome may serve as a more reliable biomarker less affected by the disease’s fluctuating cycle.”
The study findings showed that bacterial markers remain consistent even during the inactive disease phase. , she added. “With a better performance than the commonly used noninvasive test, fecal calprotectin, we believe the test will be a valuable addition to clinician’s toolbox and a strong option for first-line diagnostics.”
The Study
The group used metagenomic data from 5979 fecal samples from persons with and without IBD from different regions (including the United States) and of different ethnicities. Identifying several microbiota alterations in IBD, they selected bacterial species to construct diagnostic models for UC (n = 10) and CD (n = 9). Some species were deleted and some were enriched in IBD.
Metagenomic findings confirmed, for example, enrichments of Escherichia coli and Bacteroides fragilis in the guts of CD patients, with adherent invasive E coli present in more than half of these. This pathogen has been linked to mucosal dysbiosis and functional alteration, and has been associated with disease activity and endoscopic recurrence following surgery. B fragilis may induce intestinal inflammation through toxin production.
The researchers also identified a new oral bacterium, Actinomyces species oral taxon 181, which was significantly enriched in stool samples with both CD and UC.
The diagnostic models achieved areas under the curve of >.90 for distinguishing IBD patients from controls in the discovery cohort and maintained satisfactory performance in transethnic validation cohorts from eight populations.
Ng’s group further developed a multiplex droplet digital PCR test targeting selected IBD-associated bacterial species. Models based on this test showed numerically higher performance than fecal calprotectin in discriminating UC and CD samples from controls. These universally IBD-associated bacteria suggest the potential applicability of a biomarker panel for noninvasive diagnosis.
Commenting on the paper but not involved in it, Ashwin N. Ananthakrishnan, MBBS, MPH, AGAF, director of the Crohn’s and Colitis Center at Massachusetts General Hospital in Boston and associate professor of medicine at Harvard Medical School, called it “a very important study that highlights the potential role of a microbiome-based diagnostic for screening. It could have application in a wide variety of settings and is very promising.”
More work, however, is necessary to clarify such testing’s role. “The study’s validation in independent cohorts is an important strength, but the sizes of those cohorts are still quite small,” he said in an interview. “It’s important to understand its accuracy across a spectrum of IBD phenotypes and severity.”
Furthermore, endoscopic evaluation at diagnosis is important to establish severity and extent of disease. “It’s not clear this diagnostic biomarker can help supplant that role. But I see potential value to it for patients for whom we may not be considering endoscopy yet but who would like to risk-stratify.”
The Test’s Future
“We expect to see a real shift in clinical practice,” Ng said. “As a cost-effective test, it will help millions of people dealing with nonspecific gastrointestinal symptoms get the diagnoses they need.” Because the bacterial test can identify IBD at an inactive stage, it has the potential for early diagnosis. “This capability allows clinicians to initiate treatment sooner, helping to prevent progression from subclinical to clinical stages of the disease.”
The next research steps involve prospective studies with a larger and more diverse group of patients with various gastrointestinal symptoms. “This will enable a comprehensive evaluation of bacterial biomarkers in real-world populations,” she said. In vivo and in vitro experiments are expected to provide mechanistic insights into the causal role of these bacteria and metabolic dysregulations in the pathogenesis of IBD, as well as their future clinical utility in disease monitoring and predicting treatment response.
Her group plans to work with the biotech industry and regulatory agencies to transform these biomarkers into an approved test kit. “The rollout is likely to be gradual, but we’re optimistic that supportive international and national guidelines will be developed and will pave the way for widespread implementation.”
This study was supported by various academic, charitable, and governmental research-funding bodies, including the governments of Hong Kong and the People’s Republic of China. Ng has served as an advisory board member or speaker for Pfizer, Ferring, Janssen, AbbVie, Tillotts, Menarini, and Takeda. She has received research grants through her institutions from Olympus, Ferring, and AbbVie and is a founding member and shareholder of GenieBiome. She receives patent royalties through her institutions, including MagIC, which holds patents on the therapeutic and diagnostic use of the microbiome in IBD. Several co-authors reported various relationships, including patent holding, with private-sector companies. Ananthakrishnan had no relevant competing interests.
A version of this article first appeared on Medscape.com.
International researchers have uncovered potentially diagnostic gut microbiome signatures and metabolic pathways associated specifically with ulcerative colitis (UC) and Crohn’s disease (CD).
Targeted droplet digital polymerase chain reaction (ddPCR)‒based quantification of bacterial species led to convenient inflammatory bowel disease (IBD) diagnostic assays that “are sufficiently robust, sensitive and cost-effective for clinical application,” the investigators wrote in a recent study published in Nature Medicine.
“Although traditional modalities used for diagnosis of IBD, including colonoscopy and cross-sectional imaging, are well established, the inconvenience of bowel preparation and radiation represents relevant concerns,” senior author Siew C. Ng, MBBS, PhD, a professor in the Department of Medicine and Therapeutics at the Chinese University of Hong Kong, said in an interview. “Furthermore, existing serological and fecal markers indicate inflammation but lack specificity for IBD.”
Identifying reproducible bacterial biomarkers specific to CD and IBD should enable precise and personalized approaches to detection and management.
As a starting point, the researchers hypothesized that changes in the gut microbiome of IBD patients may reflect underlying functional associations, if not causes, of the disease, said Ng, who is also director of Hong Kong’s Microbiota I-Center (MagIC). “Unlike inflammation, which is a manifestation of the disease, the gut microbiome may serve as a more reliable biomarker less affected by the disease’s fluctuating cycle.”
The study findings showed that bacterial markers remain consistent even during the inactive disease phase. , she added. “With a better performance than the commonly used noninvasive test, fecal calprotectin, we believe the test will be a valuable addition to clinician’s toolbox and a strong option for first-line diagnostics.”
The Study
The group used metagenomic data from 5979 fecal samples from persons with and without IBD from different regions (including the United States) and of different ethnicities. Identifying several microbiota alterations in IBD, they selected bacterial species to construct diagnostic models for UC (n = 10) and CD (n = 9). Some species were deleted and some were enriched in IBD.
Metagenomic findings confirmed, for example, enrichments of Escherichia coli and Bacteroides fragilis in the guts of CD patients, with adherent invasive E coli present in more than half of these. This pathogen has been linked to mucosal dysbiosis and functional alteration, and has been associated with disease activity and endoscopic recurrence following surgery. B fragilis may induce intestinal inflammation through toxin production.
The researchers also identified a new oral bacterium, Actinomyces species oral taxon 181, which was significantly enriched in stool samples with both CD and UC.
The diagnostic models achieved areas under the curve of >.90 for distinguishing IBD patients from controls in the discovery cohort and maintained satisfactory performance in transethnic validation cohorts from eight populations.
Ng’s group further developed a multiplex droplet digital PCR test targeting selected IBD-associated bacterial species. Models based on this test showed numerically higher performance than fecal calprotectin in discriminating UC and CD samples from controls. These universally IBD-associated bacteria suggest the potential applicability of a biomarker panel for noninvasive diagnosis.
Commenting on the paper but not involved in it, Ashwin N. Ananthakrishnan, MBBS, MPH, AGAF, director of the Crohn’s and Colitis Center at Massachusetts General Hospital in Boston and associate professor of medicine at Harvard Medical School, called it “a very important study that highlights the potential role of a microbiome-based diagnostic for screening. It could have application in a wide variety of settings and is very promising.”
More work, however, is necessary to clarify such testing’s role. “The study’s validation in independent cohorts is an important strength, but the sizes of those cohorts are still quite small,” he said in an interview. “It’s important to understand its accuracy across a spectrum of IBD phenotypes and severity.”
Furthermore, endoscopic evaluation at diagnosis is important to establish severity and extent of disease. “It’s not clear this diagnostic biomarker can help supplant that role. But I see potential value to it for patients for whom we may not be considering endoscopy yet but who would like to risk-stratify.”
The Test’s Future
“We expect to see a real shift in clinical practice,” Ng said. “As a cost-effective test, it will help millions of people dealing with nonspecific gastrointestinal symptoms get the diagnoses they need.” Because the bacterial test can identify IBD at an inactive stage, it has the potential for early diagnosis. “This capability allows clinicians to initiate treatment sooner, helping to prevent progression from subclinical to clinical stages of the disease.”
The next research steps involve prospective studies with a larger and more diverse group of patients with various gastrointestinal symptoms. “This will enable a comprehensive evaluation of bacterial biomarkers in real-world populations,” she said. In vivo and in vitro experiments are expected to provide mechanistic insights into the causal role of these bacteria and metabolic dysregulations in the pathogenesis of IBD, as well as their future clinical utility in disease monitoring and predicting treatment response.
Her group plans to work with the biotech industry and regulatory agencies to transform these biomarkers into an approved test kit. “The rollout is likely to be gradual, but we’re optimistic that supportive international and national guidelines will be developed and will pave the way for widespread implementation.”
This study was supported by various academic, charitable, and governmental research-funding bodies, including the governments of Hong Kong and the People’s Republic of China. Ng has served as an advisory board member or speaker for Pfizer, Ferring, Janssen, AbbVie, Tillotts, Menarini, and Takeda. She has received research grants through her institutions from Olympus, Ferring, and AbbVie and is a founding member and shareholder of GenieBiome. She receives patent royalties through her institutions, including MagIC, which holds patents on the therapeutic and diagnostic use of the microbiome in IBD. Several co-authors reported various relationships, including patent holding, with private-sector companies. Ananthakrishnan had no relevant competing interests.
A version of this article first appeared on Medscape.com.
International researchers have uncovered potentially diagnostic gut microbiome signatures and metabolic pathways associated specifically with ulcerative colitis (UC) and Crohn’s disease (CD).
Targeted droplet digital polymerase chain reaction (ddPCR)‒based quantification of bacterial species led to convenient inflammatory bowel disease (IBD) diagnostic assays that “are sufficiently robust, sensitive and cost-effective for clinical application,” the investigators wrote in a recent study published in Nature Medicine.
“Although traditional modalities used for diagnosis of IBD, including colonoscopy and cross-sectional imaging, are well established, the inconvenience of bowel preparation and radiation represents relevant concerns,” senior author Siew C. Ng, MBBS, PhD, a professor in the Department of Medicine and Therapeutics at the Chinese University of Hong Kong, said in an interview. “Furthermore, existing serological and fecal markers indicate inflammation but lack specificity for IBD.”
Identifying reproducible bacterial biomarkers specific to CD and IBD should enable precise and personalized approaches to detection and management.
As a starting point, the researchers hypothesized that changes in the gut microbiome of IBD patients may reflect underlying functional associations, if not causes, of the disease, said Ng, who is also director of Hong Kong’s Microbiota I-Center (MagIC). “Unlike inflammation, which is a manifestation of the disease, the gut microbiome may serve as a more reliable biomarker less affected by the disease’s fluctuating cycle.”
The study findings showed that bacterial markers remain consistent even during the inactive disease phase. , she added. “With a better performance than the commonly used noninvasive test, fecal calprotectin, we believe the test will be a valuable addition to clinician’s toolbox and a strong option for first-line diagnostics.”
The Study
The group used metagenomic data from 5979 fecal samples from persons with and without IBD from different regions (including the United States) and of different ethnicities. Identifying several microbiota alterations in IBD, they selected bacterial species to construct diagnostic models for UC (n = 10) and CD (n = 9). Some species were deleted and some were enriched in IBD.
Metagenomic findings confirmed, for example, enrichments of Escherichia coli and Bacteroides fragilis in the guts of CD patients, with adherent invasive E coli present in more than half of these. This pathogen has been linked to mucosal dysbiosis and functional alteration, and has been associated with disease activity and endoscopic recurrence following surgery. B fragilis may induce intestinal inflammation through toxin production.
The researchers also identified a new oral bacterium, Actinomyces species oral taxon 181, which was significantly enriched in stool samples with both CD and UC.
The diagnostic models achieved areas under the curve of >.90 for distinguishing IBD patients from controls in the discovery cohort and maintained satisfactory performance in transethnic validation cohorts from eight populations.
Ng’s group further developed a multiplex droplet digital PCR test targeting selected IBD-associated bacterial species. Models based on this test showed numerically higher performance than fecal calprotectin in discriminating UC and CD samples from controls. These universally IBD-associated bacteria suggest the potential applicability of a biomarker panel for noninvasive diagnosis.
Commenting on the paper but not involved in it, Ashwin N. Ananthakrishnan, MBBS, MPH, AGAF, director of the Crohn’s and Colitis Center at Massachusetts General Hospital in Boston and associate professor of medicine at Harvard Medical School, called it “a very important study that highlights the potential role of a microbiome-based diagnostic for screening. It could have application in a wide variety of settings and is very promising.”
More work, however, is necessary to clarify such testing’s role. “The study’s validation in independent cohorts is an important strength, but the sizes of those cohorts are still quite small,” he said in an interview. “It’s important to understand its accuracy across a spectrum of IBD phenotypes and severity.”
Furthermore, endoscopic evaluation at diagnosis is important to establish severity and extent of disease. “It’s not clear this diagnostic biomarker can help supplant that role. But I see potential value to it for patients for whom we may not be considering endoscopy yet but who would like to risk-stratify.”
The Test’s Future
“We expect to see a real shift in clinical practice,” Ng said. “As a cost-effective test, it will help millions of people dealing with nonspecific gastrointestinal symptoms get the diagnoses they need.” Because the bacterial test can identify IBD at an inactive stage, it has the potential for early diagnosis. “This capability allows clinicians to initiate treatment sooner, helping to prevent progression from subclinical to clinical stages of the disease.”
The next research steps involve prospective studies with a larger and more diverse group of patients with various gastrointestinal symptoms. “This will enable a comprehensive evaluation of bacterial biomarkers in real-world populations,” she said. In vivo and in vitro experiments are expected to provide mechanistic insights into the causal role of these bacteria and metabolic dysregulations in the pathogenesis of IBD, as well as their future clinical utility in disease monitoring and predicting treatment response.
Her group plans to work with the biotech industry and regulatory agencies to transform these biomarkers into an approved test kit. “The rollout is likely to be gradual, but we’re optimistic that supportive international and national guidelines will be developed and will pave the way for widespread implementation.”
This study was supported by various academic, charitable, and governmental research-funding bodies, including the governments of Hong Kong and the People’s Republic of China. Ng has served as an advisory board member or speaker for Pfizer, Ferring, Janssen, AbbVie, Tillotts, Menarini, and Takeda. She has received research grants through her institutions from Olympus, Ferring, and AbbVie and is a founding member and shareholder of GenieBiome. She receives patent royalties through her institutions, including MagIC, which holds patents on the therapeutic and diagnostic use of the microbiome in IBD. Several co-authors reported various relationships, including patent holding, with private-sector companies. Ananthakrishnan had no relevant competing interests.
A version of this article first appeared on Medscape.com.
FROM NATURE MEDICINE
More Americans Than Ever Suffer From Chronic Pain
More Americans than ever are hurting with enduring, life-restricting pain. Like obesity, this condition is on the rise, according to figures in a new National Center for Health Statistics (NCHS) Data Brief from the Centers for Disease Control and Prevention (CDC).
Both types increased with age and with decreasing urbanization level. Women were more likely than men to have HICP (23.2% vs 7.3%).
Like obesity, chronic pain is multifactorial and is best managed with multidisciplinary intervention, said Jianguo Cheng, MD, PhD, a professor of anesthesiology and medical director of the Cleveland Clinic Consortium for Pain in Ohio. “It’s a complex mix of genetic, biological, and psychosocial dimensions that can cause ongoing pain out of proportion to the original limited injury that triggered it.”
While today’s longer lifespans are the primary driver of the increase, noted Martin Cheatle, PhD, an associate professor of psychiatry, anesthesiology, and critical care and director of behavioral medicine at the Penn Pain Medicine Center at the University of Pennsylvania’s Perelman School of Medicine, Philadelphia, another important factor is the more than 100 million Americans who suffer from obesity. “Obesity is a major risk factor for chronic pain conditions including advancing joint disease, low back pain, and diabetic neuropathies,” he said.
Age is an amplifier, agreed Beth Darnall, PhD, a professor of anesthesiology and perioperative and pain medicine and director of the Pain Relief Innovations Lab at Stanford University in Palo Alto, California, but the increases in chronic pain and HICP cut across age strata.
“Across the board we see striking increases in chronic pain, such as a 5% increase for those 65 and older, and a nearly 2% increase in HICP in that same age group,” Darnall said, referencing the changes from 2019 data in the new NCHS Data Brief. “And an almost 4% increase was observed for the youngest adult age category,18 to 29. Some of our research is now focusing on how to best treat chronic pain in young adults.”
The rise in chronic pain is broadly linked to the overall decline in the health of the US population, as indicated by the CDC 2024’s Chronic Disease Prevalence in the US: Sociodemographic and Geographic Variations by Zip Code Tabulation Area.
The Opioid Crisis and COVID
Beginning in 2016, in response to the opioid crisis and CDC guidelines, opioid prescribing for chronic pain rapidly dropped, both in terms of new prescriptions and tapering of doses of long-term users. “Reduced opioid prescribing yielded benefits for some patients but created new problems and harms for other patients,” said Darnall. Cheng added that the CDC’s recommendations on opioid prescribing were widely misinterpreted and were applied to patients with painful conditions such as cancer and sickle cell disease who were not intended to be affected by the guidelines. “In addition, although medical opioid prescribing dropped by 50%, overdose deaths from non-medical opioid sources increased by more 50%.”
Currently, most opioid overdoses are related to heroin, fentanyl, and newer drugs of abuse such as xylazine. “Most pain clinicians would agree that opioids are not first-line therapy for chronic non-cancer pain, but in a select number of well-vetted patients, opioids can be very effective in improving functionality and quality of life as part of a multimodal approach to pain care,” Cheatle said.
The impact of the opioid crisis is complex, said Cheatle, noting that only 8%-10% of pain patients on long-term opioid therapy develop a use disorder. “However, opioids were overly prescribed due to clinicians’ lack of training in core competencies of pain management and the insurance companies’ refusal to adequately cover non-opioid therapies such as acupuncture, cognitive behavioral therapy, extended physical therapy, and medical massage,” he said.
He pointed out that in the late 1990s there were more than 1000 multidisciplinary pain centers, whereas currently there are many fewer owing to lack of insurance reimbursement. “This results in more possibly avoidable invasive surgeries, which can further contribute to the increase in chronic pain.”
The COVID pandemic further exacerbated the pain problem and delayed access to timely medical interventions for many people. Some adopted a more sedentary lifestyle, already entrenched in today’s technology-driven society, leading in turn to weight gain and more chronic pain. “The isolation and lack of normal human connections during the pandemic could exacerbate pain and loss of autonomy,” Cheatle said. And some individuals developed painful neurologic conditions related to long-haul COVID, for which there is no effective treatment.
Best Approach
“Historically, pain has been treated as a purely biomedical issue. Bringing a biopsychosocial perspective to pain care can support pain relief,” said Darnall. Multiple national clinical guidance documents have called for a comprehensive approach that considers the whole person: their circumstances, their needs, their stressors, and their environment. “And we must provide patients meaningful access to the lowest-risk, non-pharmacologic treatments first – and ideally early on,” she said.
Even effective medications rarely make a person pain free, so other approaches are needed in tandem, Darnall said. Support for stronger patient competency in self-management of chronic pain is mounting.
“It’s vitally important that we help people know how to help themselves have less pain – how to steer their mind and body toward relief by using pain relief skills,” she said. “By so doing they can cultivate a critical level of control over their pain and are less at its mercy, which supports good mood and is shown to help people be more active as the impacts of pain diminish.”
Darnall outlined a recent development in the primary care setting that involves offering patients a brief program in pain-relief skills training. Within Veterans Affairs primary care, for example, patients receive several 30-minute sessions in pain reduction techniques. Outside of the VA, primary care clinics are incorporating an evidence-based, one-session 2-hour pain relief skills class called Empowered Relief, as standard care.
The class teaches participants three pain management skills and creates a personalized plan for each that includes a free app for ongoing daily use.
Since pain causes agitation in the central nervous system, manifested as fast heart rate, rapid breathing, muscle tension, and distress, people learn various ways to calm the central nervous system – with, for example, a sound technology known as binaural audio to deepen the relaxation response. “They also learn to identify and target worry about pain and develop self-soothing actions to interrupt unhelpful patterns,” Darnall said.
Data from randomized chronic pain studies, including one by her group using a virtual reality training program for lower back pain, show that 3 months after the training program people report clinically meaningful reductions in pain intensity, pain interference with daily activities, and sleep disturbance, as well as pain-related distress, anxiety, and fatigue
While psychological and complementary approaches have been effective in improving function and mood, there are barriers to accessing them, said Cheatle, such as lack of insurance coverage and the stigma associated with nontraditional, especially psychological, care.
Prevention
Good lifestyle behaviors promote better health as people age. “Maintaining a healthy weight, staying active, prioritizing good sleep, and avoiding smoking and alcohol use can support better health and buffer against chronic diseases and pain,” Darnall said.
Cheatle noted the importance of maintaining a safe work environment and avoiding injury risks by, for example, wearing a seatbelt or a cycling helmet.
The Future
“We need to ensure all individuals have access to effective, low-burden pain treatments, including evidence-based treatments they can receive from home so as to minimize treatment disparities.” Darnall said. Also needed is better comprehensive treatment for acute and chronic pain alike. “If we treat acute pain better, we will have fewer people transitioning to the chronic pain state.”
To that end, added Cheng, healthcare professionals in every specialty from doctors and nurses to psychologists and chiropractors need to develop co-competencies in pain management.
For Cheatle, the near future looks bleak. “There are some pioneering bioengineering approaches to reduce chronic pain and novel pharmacologic agents such as calcitonin gene-related peptide inhibitors for intractable migraines, but just changing insurance reimbursement for a comprehensive approach to chronic pain care and bolstering healthcare provider education on core pain competencies will benefit the over 50 million adults who suffer from chronic pain.”
Cheng, however, is more sanguine. “I don’t expect miracles in 10 years’ time, but we’re making rapid progress in understanding the genetics of chronic pain and the mechanisms of disease and therapy. We’re developing biomarkers to help in prognosis and monitor disease progress.” In the meantime, he pointed to an expanding array of non-pharmaceutical options, including neuromodulatory approaches such as nerve blocks and spinal cord stimulation.
Cheng, Cheatle, and Darnall disclosed no relevant competing interests.
A version of this article appeared on Medscape.com.
More Americans than ever are hurting with enduring, life-restricting pain. Like obesity, this condition is on the rise, according to figures in a new National Center for Health Statistics (NCHS) Data Brief from the Centers for Disease Control and Prevention (CDC).
Both types increased with age and with decreasing urbanization level. Women were more likely than men to have HICP (23.2% vs 7.3%).
Like obesity, chronic pain is multifactorial and is best managed with multidisciplinary intervention, said Jianguo Cheng, MD, PhD, a professor of anesthesiology and medical director of the Cleveland Clinic Consortium for Pain in Ohio. “It’s a complex mix of genetic, biological, and psychosocial dimensions that can cause ongoing pain out of proportion to the original limited injury that triggered it.”
While today’s longer lifespans are the primary driver of the increase, noted Martin Cheatle, PhD, an associate professor of psychiatry, anesthesiology, and critical care and director of behavioral medicine at the Penn Pain Medicine Center at the University of Pennsylvania’s Perelman School of Medicine, Philadelphia, another important factor is the more than 100 million Americans who suffer from obesity. “Obesity is a major risk factor for chronic pain conditions including advancing joint disease, low back pain, and diabetic neuropathies,” he said.
Age is an amplifier, agreed Beth Darnall, PhD, a professor of anesthesiology and perioperative and pain medicine and director of the Pain Relief Innovations Lab at Stanford University in Palo Alto, California, but the increases in chronic pain and HICP cut across age strata.
“Across the board we see striking increases in chronic pain, such as a 5% increase for those 65 and older, and a nearly 2% increase in HICP in that same age group,” Darnall said, referencing the changes from 2019 data in the new NCHS Data Brief. “And an almost 4% increase was observed for the youngest adult age category,18 to 29. Some of our research is now focusing on how to best treat chronic pain in young adults.”
The rise in chronic pain is broadly linked to the overall decline in the health of the US population, as indicated by the CDC 2024’s Chronic Disease Prevalence in the US: Sociodemographic and Geographic Variations by Zip Code Tabulation Area.
The Opioid Crisis and COVID
Beginning in 2016, in response to the opioid crisis and CDC guidelines, opioid prescribing for chronic pain rapidly dropped, both in terms of new prescriptions and tapering of doses of long-term users. “Reduced opioid prescribing yielded benefits for some patients but created new problems and harms for other patients,” said Darnall. Cheng added that the CDC’s recommendations on opioid prescribing were widely misinterpreted and were applied to patients with painful conditions such as cancer and sickle cell disease who were not intended to be affected by the guidelines. “In addition, although medical opioid prescribing dropped by 50%, overdose deaths from non-medical opioid sources increased by more 50%.”
Currently, most opioid overdoses are related to heroin, fentanyl, and newer drugs of abuse such as xylazine. “Most pain clinicians would agree that opioids are not first-line therapy for chronic non-cancer pain, but in a select number of well-vetted patients, opioids can be very effective in improving functionality and quality of life as part of a multimodal approach to pain care,” Cheatle said.
The impact of the opioid crisis is complex, said Cheatle, noting that only 8%-10% of pain patients on long-term opioid therapy develop a use disorder. “However, opioids were overly prescribed due to clinicians’ lack of training in core competencies of pain management and the insurance companies’ refusal to adequately cover non-opioid therapies such as acupuncture, cognitive behavioral therapy, extended physical therapy, and medical massage,” he said.
He pointed out that in the late 1990s there were more than 1000 multidisciplinary pain centers, whereas currently there are many fewer owing to lack of insurance reimbursement. “This results in more possibly avoidable invasive surgeries, which can further contribute to the increase in chronic pain.”
The COVID pandemic further exacerbated the pain problem and delayed access to timely medical interventions for many people. Some adopted a more sedentary lifestyle, already entrenched in today’s technology-driven society, leading in turn to weight gain and more chronic pain. “The isolation and lack of normal human connections during the pandemic could exacerbate pain and loss of autonomy,” Cheatle said. And some individuals developed painful neurologic conditions related to long-haul COVID, for which there is no effective treatment.
Best Approach
“Historically, pain has been treated as a purely biomedical issue. Bringing a biopsychosocial perspective to pain care can support pain relief,” said Darnall. Multiple national clinical guidance documents have called for a comprehensive approach that considers the whole person: their circumstances, their needs, their stressors, and their environment. “And we must provide patients meaningful access to the lowest-risk, non-pharmacologic treatments first – and ideally early on,” she said.
Even effective medications rarely make a person pain free, so other approaches are needed in tandem, Darnall said. Support for stronger patient competency in self-management of chronic pain is mounting.
“It’s vitally important that we help people know how to help themselves have less pain – how to steer their mind and body toward relief by using pain relief skills,” she said. “By so doing they can cultivate a critical level of control over their pain and are less at its mercy, which supports good mood and is shown to help people be more active as the impacts of pain diminish.”
Darnall outlined a recent development in the primary care setting that involves offering patients a brief program in pain-relief skills training. Within Veterans Affairs primary care, for example, patients receive several 30-minute sessions in pain reduction techniques. Outside of the VA, primary care clinics are incorporating an evidence-based, one-session 2-hour pain relief skills class called Empowered Relief, as standard care.
The class teaches participants three pain management skills and creates a personalized plan for each that includes a free app for ongoing daily use.
Since pain causes agitation in the central nervous system, manifested as fast heart rate, rapid breathing, muscle tension, and distress, people learn various ways to calm the central nervous system – with, for example, a sound technology known as binaural audio to deepen the relaxation response. “They also learn to identify and target worry about pain and develop self-soothing actions to interrupt unhelpful patterns,” Darnall said.
Data from randomized chronic pain studies, including one by her group using a virtual reality training program for lower back pain, show that 3 months after the training program people report clinically meaningful reductions in pain intensity, pain interference with daily activities, and sleep disturbance, as well as pain-related distress, anxiety, and fatigue
While psychological and complementary approaches have been effective in improving function and mood, there are barriers to accessing them, said Cheatle, such as lack of insurance coverage and the stigma associated with nontraditional, especially psychological, care.
Prevention
Good lifestyle behaviors promote better health as people age. “Maintaining a healthy weight, staying active, prioritizing good sleep, and avoiding smoking and alcohol use can support better health and buffer against chronic diseases and pain,” Darnall said.
Cheatle noted the importance of maintaining a safe work environment and avoiding injury risks by, for example, wearing a seatbelt or a cycling helmet.
The Future
“We need to ensure all individuals have access to effective, low-burden pain treatments, including evidence-based treatments they can receive from home so as to minimize treatment disparities.” Darnall said. Also needed is better comprehensive treatment for acute and chronic pain alike. “If we treat acute pain better, we will have fewer people transitioning to the chronic pain state.”
To that end, added Cheng, healthcare professionals in every specialty from doctors and nurses to psychologists and chiropractors need to develop co-competencies in pain management.
For Cheatle, the near future looks bleak. “There are some pioneering bioengineering approaches to reduce chronic pain and novel pharmacologic agents such as calcitonin gene-related peptide inhibitors for intractable migraines, but just changing insurance reimbursement for a comprehensive approach to chronic pain care and bolstering healthcare provider education on core pain competencies will benefit the over 50 million adults who suffer from chronic pain.”
Cheng, however, is more sanguine. “I don’t expect miracles in 10 years’ time, but we’re making rapid progress in understanding the genetics of chronic pain and the mechanisms of disease and therapy. We’re developing biomarkers to help in prognosis and monitor disease progress.” In the meantime, he pointed to an expanding array of non-pharmaceutical options, including neuromodulatory approaches such as nerve blocks and spinal cord stimulation.
Cheng, Cheatle, and Darnall disclosed no relevant competing interests.
A version of this article appeared on Medscape.com.
More Americans than ever are hurting with enduring, life-restricting pain. Like obesity, this condition is on the rise, according to figures in a new National Center for Health Statistics (NCHS) Data Brief from the Centers for Disease Control and Prevention (CDC).
Both types increased with age and with decreasing urbanization level. Women were more likely than men to have HICP (23.2% vs 7.3%).
Like obesity, chronic pain is multifactorial and is best managed with multidisciplinary intervention, said Jianguo Cheng, MD, PhD, a professor of anesthesiology and medical director of the Cleveland Clinic Consortium for Pain in Ohio. “It’s a complex mix of genetic, biological, and psychosocial dimensions that can cause ongoing pain out of proportion to the original limited injury that triggered it.”
While today’s longer lifespans are the primary driver of the increase, noted Martin Cheatle, PhD, an associate professor of psychiatry, anesthesiology, and critical care and director of behavioral medicine at the Penn Pain Medicine Center at the University of Pennsylvania’s Perelman School of Medicine, Philadelphia, another important factor is the more than 100 million Americans who suffer from obesity. “Obesity is a major risk factor for chronic pain conditions including advancing joint disease, low back pain, and diabetic neuropathies,” he said.
Age is an amplifier, agreed Beth Darnall, PhD, a professor of anesthesiology and perioperative and pain medicine and director of the Pain Relief Innovations Lab at Stanford University in Palo Alto, California, but the increases in chronic pain and HICP cut across age strata.
“Across the board we see striking increases in chronic pain, such as a 5% increase for those 65 and older, and a nearly 2% increase in HICP in that same age group,” Darnall said, referencing the changes from 2019 data in the new NCHS Data Brief. “And an almost 4% increase was observed for the youngest adult age category,18 to 29. Some of our research is now focusing on how to best treat chronic pain in young adults.”
The rise in chronic pain is broadly linked to the overall decline in the health of the US population, as indicated by the CDC 2024’s Chronic Disease Prevalence in the US: Sociodemographic and Geographic Variations by Zip Code Tabulation Area.
The Opioid Crisis and COVID
Beginning in 2016, in response to the opioid crisis and CDC guidelines, opioid prescribing for chronic pain rapidly dropped, both in terms of new prescriptions and tapering of doses of long-term users. “Reduced opioid prescribing yielded benefits for some patients but created new problems and harms for other patients,” said Darnall. Cheng added that the CDC’s recommendations on opioid prescribing were widely misinterpreted and were applied to patients with painful conditions such as cancer and sickle cell disease who were not intended to be affected by the guidelines. “In addition, although medical opioid prescribing dropped by 50%, overdose deaths from non-medical opioid sources increased by more 50%.”
Currently, most opioid overdoses are related to heroin, fentanyl, and newer drugs of abuse such as xylazine. “Most pain clinicians would agree that opioids are not first-line therapy for chronic non-cancer pain, but in a select number of well-vetted patients, opioids can be very effective in improving functionality and quality of life as part of a multimodal approach to pain care,” Cheatle said.
The impact of the opioid crisis is complex, said Cheatle, noting that only 8%-10% of pain patients on long-term opioid therapy develop a use disorder. “However, opioids were overly prescribed due to clinicians’ lack of training in core competencies of pain management and the insurance companies’ refusal to adequately cover non-opioid therapies such as acupuncture, cognitive behavioral therapy, extended physical therapy, and medical massage,” he said.
He pointed out that in the late 1990s there were more than 1000 multidisciplinary pain centers, whereas currently there are many fewer owing to lack of insurance reimbursement. “This results in more possibly avoidable invasive surgeries, which can further contribute to the increase in chronic pain.”
The COVID pandemic further exacerbated the pain problem and delayed access to timely medical interventions for many people. Some adopted a more sedentary lifestyle, already entrenched in today’s technology-driven society, leading in turn to weight gain and more chronic pain. “The isolation and lack of normal human connections during the pandemic could exacerbate pain and loss of autonomy,” Cheatle said. And some individuals developed painful neurologic conditions related to long-haul COVID, for which there is no effective treatment.
Best Approach
“Historically, pain has been treated as a purely biomedical issue. Bringing a biopsychosocial perspective to pain care can support pain relief,” said Darnall. Multiple national clinical guidance documents have called for a comprehensive approach that considers the whole person: their circumstances, their needs, their stressors, and their environment. “And we must provide patients meaningful access to the lowest-risk, non-pharmacologic treatments first – and ideally early on,” she said.
Even effective medications rarely make a person pain free, so other approaches are needed in tandem, Darnall said. Support for stronger patient competency in self-management of chronic pain is mounting.
“It’s vitally important that we help people know how to help themselves have less pain – how to steer their mind and body toward relief by using pain relief skills,” she said. “By so doing they can cultivate a critical level of control over their pain and are less at its mercy, which supports good mood and is shown to help people be more active as the impacts of pain diminish.”
Darnall outlined a recent development in the primary care setting that involves offering patients a brief program in pain-relief skills training. Within Veterans Affairs primary care, for example, patients receive several 30-minute sessions in pain reduction techniques. Outside of the VA, primary care clinics are incorporating an evidence-based, one-session 2-hour pain relief skills class called Empowered Relief, as standard care.
The class teaches participants three pain management skills and creates a personalized plan for each that includes a free app for ongoing daily use.
Since pain causes agitation in the central nervous system, manifested as fast heart rate, rapid breathing, muscle tension, and distress, people learn various ways to calm the central nervous system – with, for example, a sound technology known as binaural audio to deepen the relaxation response. “They also learn to identify and target worry about pain and develop self-soothing actions to interrupt unhelpful patterns,” Darnall said.
Data from randomized chronic pain studies, including one by her group using a virtual reality training program for lower back pain, show that 3 months after the training program people report clinically meaningful reductions in pain intensity, pain interference with daily activities, and sleep disturbance, as well as pain-related distress, anxiety, and fatigue
While psychological and complementary approaches have been effective in improving function and mood, there are barriers to accessing them, said Cheatle, such as lack of insurance coverage and the stigma associated with nontraditional, especially psychological, care.
Prevention
Good lifestyle behaviors promote better health as people age. “Maintaining a healthy weight, staying active, prioritizing good sleep, and avoiding smoking and alcohol use can support better health and buffer against chronic diseases and pain,” Darnall said.
Cheatle noted the importance of maintaining a safe work environment and avoiding injury risks by, for example, wearing a seatbelt or a cycling helmet.
The Future
“We need to ensure all individuals have access to effective, low-burden pain treatments, including evidence-based treatments they can receive from home so as to minimize treatment disparities.” Darnall said. Also needed is better comprehensive treatment for acute and chronic pain alike. “If we treat acute pain better, we will have fewer people transitioning to the chronic pain state.”
To that end, added Cheng, healthcare professionals in every specialty from doctors and nurses to psychologists and chiropractors need to develop co-competencies in pain management.
For Cheatle, the near future looks bleak. “There are some pioneering bioengineering approaches to reduce chronic pain and novel pharmacologic agents such as calcitonin gene-related peptide inhibitors for intractable migraines, but just changing insurance reimbursement for a comprehensive approach to chronic pain care and bolstering healthcare provider education on core pain competencies will benefit the over 50 million adults who suffer from chronic pain.”
Cheng, however, is more sanguine. “I don’t expect miracles in 10 years’ time, but we’re making rapid progress in understanding the genetics of chronic pain and the mechanisms of disease and therapy. We’re developing biomarkers to help in prognosis and monitor disease progress.” In the meantime, he pointed to an expanding array of non-pharmaceutical options, including neuromodulatory approaches such as nerve blocks and spinal cord stimulation.
Cheng, Cheatle, and Darnall disclosed no relevant competing interests.
A version of this article appeared on Medscape.com.
USPSTF Updates Recommendations on Cervical Cancer Screening
The US Preventive Services Task Force (USPSTF) has posted a draft updated statement on cervical cancer screening. The statement is open for public comment until January 13, 2025, on the task force’s website.
Nearly all cases of cervical cancer are caused by human papilloma virus (HPV) and most occur in women who have not been regularly screened or appropriately treated, the task force stressed.
New Screening Option
In 2024, there will be an estimated 13,820 new cases of cervical cancer and 4360 deaths.
“Evidence shows that screening saves lives, and all women aged 21-65 need to be screened,” task force member Esa Davis, MD, MPH, FAAFP, a professor of family and community medicine and associate vice president for community health at the University of Maryland, Baltimore, said in an interview. A new feature in the 2024 draft statement endorsing self-collection of cervical samples for HPV testing may facilitate broader screening.
“We hope the new effective option of self-collecting will expand screening and allow even more women to get screened regularly,” Davis said. “Some may feel more comfortable collecting samples themselves, and the collection can be office-based or home-based, but it’s very important that it be done under the direction of a clinician.”
In agreement is Diego Aviles, MD, an assistant professor and a gynecologic oncologist with UTHealth Houston. “Self-collection will absolutely expand screening. I think it’s an incredible advancement in medicine that patients are able to collect in the comfort of their own homes with no need to come into the office for an uncomfortable pelvic exam,” he said in an interview. “This empowers the patient and gives her a choice.”
As to concern about potential error, he added that while this is a concern on paper, “a lot of studies have shown that self-collection is just as effective doctor collection.”
Largely consistent with the task force’s 2018 screening recommendations, the updated suggestions also align with those of other organizations such as the American College of Obstetricians and Gynecologists (ACOG), Davis said.
Christopher M. Zahn, MD, ACOG’s chief of clinical practice and health equity and quality, stressed the importance of cervical cancer screening and said his organization will be reviewing the USPSTF recommendations. He urges ACOG members to consider them and offer their comments on the public-input platform.
Drawing on the latest evidence, the task force is also highlighting for the first time that stand-alone HPV screening gives women aged 30-65 years the best balance of benefits and harms when it comes to finding and preventing cervical cancer, while continuing to reinforce that Pap testing and co-testing are also effective screening options for these women.
The current draft statement applies to cisgender women and those assigned female sex at birth, including transgender men and nonbinary individuals. The recommendations do not apply to women at increased risk of cervical cancer such as those with HIV infection, a compromised immune system, or a history of treatment for precancerous lesions or cervical cancer.
Based on a review of evidence on the benefits and harms of screening, the USPSTF’s independent panel of national experts proposed the following:
Recommendations for Screening (Based on Grade A Evidence):
- Ages 21-65 years: All women should get screened regularly for this preventable disease.
- Ages 21-29 years: All women in this age group should undergo a Pap test every 3 years but do not need HPV testing. “In this age group most HPV infections will go away on their own because young women have strong immune systems. Older women are likely to have HPV that lasts longer and so they need testing for the virus,” Davis said.
- Ages 30-65 years: As noted, HPV screening gives women in this age category the best balance of benefits and harms in terms of preventing and finding cervical cancer. Pap testing or co-testing (Pap tests and HPV tests) are also effective screening options for this population. Ideally, these women should have an HPV test every 5 years or, alternatively, a Pap test every 3 years, or a combined HPV and Pap test every 5 years (co-testing).
Recommendations Against Screening (No Benefit or Benefit Outweighed by Harms — Grade D evidence):
- Women aged less than 21 years: Screening is not necessary.
- Other women not needing screening: Nor is screening necessary for those of any age who have had a total hysterectomy with removal of the cervix and those aged > 65 years who have had regular screenings with normal results. That means normal results from their last three Pap tests or their last two HPV tests, completed in the past 10 years, with at least one of the tests done in the past 5 years.
- Women aged 65 or more: These women should continue screening only if they have not been screened regularly or have had abnormal results in the past decade such as a high-grade precancerous lesion (cervical intraepithelial neoplasia grade 2 or 3) or cervical cancer.
Davis noted that none of the current recommendations are likely to be controversial or to spark pushback. “But,” said Aviles, “any time I see recent change in medicine, there’s always a little bit of pushback and it may take some time for everyone to be comfortable with the self-collection option. The recommendations still give doctors the grace to use the screening test they feel comfortable with, but I think eventually everyone will get on board with self-collection.”
As for the future, he added, “Over the next few years we’ll have to look at women who are on immune-weakening medications like Skyrizi [risankizumab] for skin conditions like psoriasis. These are commonly used in young people and can increase the risk of cervical cancer. I haven’t seen a lot of conversation about this, but patients should be aware of this risk and recommendations for this group should be different than for the general population.”
The USPSTF also noted a need to assess the magnitude of the incremental benefit and harms of screening and the interval of multiple rounds of HPV-primary screening in HPV-vaccinated cohorts in US populations.
Davis, Aviles, and Zahn and had no relevant competing interests to disclose.
A version of this article first appeared on Medscape.com.
The US Preventive Services Task Force (USPSTF) has posted a draft updated statement on cervical cancer screening. The statement is open for public comment until January 13, 2025, on the task force’s website.
Nearly all cases of cervical cancer are caused by human papilloma virus (HPV) and most occur in women who have not been regularly screened or appropriately treated, the task force stressed.
New Screening Option
In 2024, there will be an estimated 13,820 new cases of cervical cancer and 4360 deaths.
“Evidence shows that screening saves lives, and all women aged 21-65 need to be screened,” task force member Esa Davis, MD, MPH, FAAFP, a professor of family and community medicine and associate vice president for community health at the University of Maryland, Baltimore, said in an interview. A new feature in the 2024 draft statement endorsing self-collection of cervical samples for HPV testing may facilitate broader screening.
“We hope the new effective option of self-collecting will expand screening and allow even more women to get screened regularly,” Davis said. “Some may feel more comfortable collecting samples themselves, and the collection can be office-based or home-based, but it’s very important that it be done under the direction of a clinician.”
In agreement is Diego Aviles, MD, an assistant professor and a gynecologic oncologist with UTHealth Houston. “Self-collection will absolutely expand screening. I think it’s an incredible advancement in medicine that patients are able to collect in the comfort of their own homes with no need to come into the office for an uncomfortable pelvic exam,” he said in an interview. “This empowers the patient and gives her a choice.”
As to concern about potential error, he added that while this is a concern on paper, “a lot of studies have shown that self-collection is just as effective doctor collection.”
Largely consistent with the task force’s 2018 screening recommendations, the updated suggestions also align with those of other organizations such as the American College of Obstetricians and Gynecologists (ACOG), Davis said.
Christopher M. Zahn, MD, ACOG’s chief of clinical practice and health equity and quality, stressed the importance of cervical cancer screening and said his organization will be reviewing the USPSTF recommendations. He urges ACOG members to consider them and offer their comments on the public-input platform.
Drawing on the latest evidence, the task force is also highlighting for the first time that stand-alone HPV screening gives women aged 30-65 years the best balance of benefits and harms when it comes to finding and preventing cervical cancer, while continuing to reinforce that Pap testing and co-testing are also effective screening options for these women.
The current draft statement applies to cisgender women and those assigned female sex at birth, including transgender men and nonbinary individuals. The recommendations do not apply to women at increased risk of cervical cancer such as those with HIV infection, a compromised immune system, or a history of treatment for precancerous lesions or cervical cancer.
Based on a review of evidence on the benefits and harms of screening, the USPSTF’s independent panel of national experts proposed the following:
Recommendations for Screening (Based on Grade A Evidence):
- Ages 21-65 years: All women should get screened regularly for this preventable disease.
- Ages 21-29 years: All women in this age group should undergo a Pap test every 3 years but do not need HPV testing. “In this age group most HPV infections will go away on their own because young women have strong immune systems. Older women are likely to have HPV that lasts longer and so they need testing for the virus,” Davis said.
- Ages 30-65 years: As noted, HPV screening gives women in this age category the best balance of benefits and harms in terms of preventing and finding cervical cancer. Pap testing or co-testing (Pap tests and HPV tests) are also effective screening options for this population. Ideally, these women should have an HPV test every 5 years or, alternatively, a Pap test every 3 years, or a combined HPV and Pap test every 5 years (co-testing).
Recommendations Against Screening (No Benefit or Benefit Outweighed by Harms — Grade D evidence):
- Women aged less than 21 years: Screening is not necessary.
- Other women not needing screening: Nor is screening necessary for those of any age who have had a total hysterectomy with removal of the cervix and those aged > 65 years who have had regular screenings with normal results. That means normal results from their last three Pap tests or their last two HPV tests, completed in the past 10 years, with at least one of the tests done in the past 5 years.
- Women aged 65 or more: These women should continue screening only if they have not been screened regularly or have had abnormal results in the past decade such as a high-grade precancerous lesion (cervical intraepithelial neoplasia grade 2 or 3) or cervical cancer.
Davis noted that none of the current recommendations are likely to be controversial or to spark pushback. “But,” said Aviles, “any time I see recent change in medicine, there’s always a little bit of pushback and it may take some time for everyone to be comfortable with the self-collection option. The recommendations still give doctors the grace to use the screening test they feel comfortable with, but I think eventually everyone will get on board with self-collection.”
As for the future, he added, “Over the next few years we’ll have to look at women who are on immune-weakening medications like Skyrizi [risankizumab] for skin conditions like psoriasis. These are commonly used in young people and can increase the risk of cervical cancer. I haven’t seen a lot of conversation about this, but patients should be aware of this risk and recommendations for this group should be different than for the general population.”
The USPSTF also noted a need to assess the magnitude of the incremental benefit and harms of screening and the interval of multiple rounds of HPV-primary screening in HPV-vaccinated cohorts in US populations.
Davis, Aviles, and Zahn and had no relevant competing interests to disclose.
A version of this article first appeared on Medscape.com.
The US Preventive Services Task Force (USPSTF) has posted a draft updated statement on cervical cancer screening. The statement is open for public comment until January 13, 2025, on the task force’s website.
Nearly all cases of cervical cancer are caused by human papilloma virus (HPV) and most occur in women who have not been regularly screened or appropriately treated, the task force stressed.
New Screening Option
In 2024, there will be an estimated 13,820 new cases of cervical cancer and 4360 deaths.
“Evidence shows that screening saves lives, and all women aged 21-65 need to be screened,” task force member Esa Davis, MD, MPH, FAAFP, a professor of family and community medicine and associate vice president for community health at the University of Maryland, Baltimore, said in an interview. A new feature in the 2024 draft statement endorsing self-collection of cervical samples for HPV testing may facilitate broader screening.
“We hope the new effective option of self-collecting will expand screening and allow even more women to get screened regularly,” Davis said. “Some may feel more comfortable collecting samples themselves, and the collection can be office-based or home-based, but it’s very important that it be done under the direction of a clinician.”
In agreement is Diego Aviles, MD, an assistant professor and a gynecologic oncologist with UTHealth Houston. “Self-collection will absolutely expand screening. I think it’s an incredible advancement in medicine that patients are able to collect in the comfort of their own homes with no need to come into the office for an uncomfortable pelvic exam,” he said in an interview. “This empowers the patient and gives her a choice.”
As to concern about potential error, he added that while this is a concern on paper, “a lot of studies have shown that self-collection is just as effective doctor collection.”
Largely consistent with the task force’s 2018 screening recommendations, the updated suggestions also align with those of other organizations such as the American College of Obstetricians and Gynecologists (ACOG), Davis said.
Christopher M. Zahn, MD, ACOG’s chief of clinical practice and health equity and quality, stressed the importance of cervical cancer screening and said his organization will be reviewing the USPSTF recommendations. He urges ACOG members to consider them and offer their comments on the public-input platform.
Drawing on the latest evidence, the task force is also highlighting for the first time that stand-alone HPV screening gives women aged 30-65 years the best balance of benefits and harms when it comes to finding and preventing cervical cancer, while continuing to reinforce that Pap testing and co-testing are also effective screening options for these women.
The current draft statement applies to cisgender women and those assigned female sex at birth, including transgender men and nonbinary individuals. The recommendations do not apply to women at increased risk of cervical cancer such as those with HIV infection, a compromised immune system, or a history of treatment for precancerous lesions or cervical cancer.
Based on a review of evidence on the benefits and harms of screening, the USPSTF’s independent panel of national experts proposed the following:
Recommendations for Screening (Based on Grade A Evidence):
- Ages 21-65 years: All women should get screened regularly for this preventable disease.
- Ages 21-29 years: All women in this age group should undergo a Pap test every 3 years but do not need HPV testing. “In this age group most HPV infections will go away on their own because young women have strong immune systems. Older women are likely to have HPV that lasts longer and so they need testing for the virus,” Davis said.
- Ages 30-65 years: As noted, HPV screening gives women in this age category the best balance of benefits and harms in terms of preventing and finding cervical cancer. Pap testing or co-testing (Pap tests and HPV tests) are also effective screening options for this population. Ideally, these women should have an HPV test every 5 years or, alternatively, a Pap test every 3 years, or a combined HPV and Pap test every 5 years (co-testing).
Recommendations Against Screening (No Benefit or Benefit Outweighed by Harms — Grade D evidence):
- Women aged less than 21 years: Screening is not necessary.
- Other women not needing screening: Nor is screening necessary for those of any age who have had a total hysterectomy with removal of the cervix and those aged > 65 years who have had regular screenings with normal results. That means normal results from their last three Pap tests or their last two HPV tests, completed in the past 10 years, with at least one of the tests done in the past 5 years.
- Women aged 65 or more: These women should continue screening only if they have not been screened regularly or have had abnormal results in the past decade such as a high-grade precancerous lesion (cervical intraepithelial neoplasia grade 2 or 3) or cervical cancer.
Davis noted that none of the current recommendations are likely to be controversial or to spark pushback. “But,” said Aviles, “any time I see recent change in medicine, there’s always a little bit of pushback and it may take some time for everyone to be comfortable with the self-collection option. The recommendations still give doctors the grace to use the screening test they feel comfortable with, but I think eventually everyone will get on board with self-collection.”
As for the future, he added, “Over the next few years we’ll have to look at women who are on immune-weakening medications like Skyrizi [risankizumab] for skin conditions like psoriasis. These are commonly used in young people and can increase the risk of cervical cancer. I haven’t seen a lot of conversation about this, but patients should be aware of this risk and recommendations for this group should be different than for the general population.”
The USPSTF also noted a need to assess the magnitude of the incremental benefit and harms of screening and the interval of multiple rounds of HPV-primary screening in HPV-vaccinated cohorts in US populations.
Davis, Aviles, and Zahn and had no relevant competing interests to disclose.
A version of this article first appeared on Medscape.com.
AGA Guidelines Endorse Earlier Use of High-Efficacy Drugs for Ulcerative Colitis
In a rapidly expanding therapeutic landscape,
“These are the first living guidelines published by a GI society, highlighting the interest and need to provide timely guidance to all stakeholders in a rapidly evolving field,” first author Siddharth Singh, MD, of the Division of Gastroenterology in the Department of Medicine at University of California, San Diego, said in an interview. Living guidance allows for ongoing revision of individual recommendations as new data emerge. Nearly 2 million Americans have UC.
Issued in Gastroenterology and updating the last guidance in 2020, the recommendations suggest more efficacious drugs should be used sooner. “Early use of advanced therapies including biologics and small-molecule drugs are more effective than 5-aminosalicylates [5-ASAs] or thiopurines and methotrexate for most patients with moderate to severe UC and those with poor prognostic factors,” coauthor and gastroenterologist Manasi Agrawal, MD, MS, an assistant professor of medicine at Icahn School of Medicine at Mount Sinai in New York City, said in an interview.
“We provide a practical guidance based on best-available evidence to make it easy for the treating clinician to make informed choices from the multiplicity of available treatments for UC,” added guidelines coauthor Ashwin Ananthakrishnan, MBBS, MPH, AGAF, a gastroenterologist at Massachusetts General Hospital in Boston.
The comprehensive, patient-centered document comes with this caveat from the AGA panel: “These guidelines are meant to be broad recommendations for management of patients with moderate to severe UC and are not intended to address the intricacies of individual patients,” they wrote. “Provider experience and patient values and preferences can inform treating providers and patients to reasonably choose alternative treatment options.”
One gastroenterologist who has been eagerly awaiting these guidelines but not involved in the panel is James D. Lewis, MD, MSCE, AGAF, a professor of medicine and epidemiology at Perelman School of Medicine at the University of Pennsylvania, Philadelphia. “The choice of medications for moderately to severely active UC has expanded tremendously in the past few years,” he said in an interview. “This resulted in the dismantling of the historical therapeutic pyramid.” And while there are many more treatment options, knowing which medication to use for which patient and in which sequence has become much more complicated.
“These guidelines will be extremely helpful for clinicians trying to navigate this new era of UC care,” he said.
The guidelines also outline implementation considerations for optimal use in different scenarios. “Key considerations include patient-related factors such as age, frailty, other health conditions, consideration for pregnancy, patient preferences, and access to healthcare,” Agrawal said.
Specifics
Overall, the guidance recommends advanced or immunomodulatory therapy after failure of 5-ASAs rather than a step-up approach. Moderate to severe disease is defined as a Mayo endoscopic severity subscore of 2 or 3.
The recommendation may also apply to mild disease in the presence of a high burden of inflammation and a poor prognosis or steroid dependence or resistance.
The AGA guideline panelists took account of differences in treatment efficacy between drugs within the same therapeutic class and made their recommendations by specific drugs rather than therapy class.
Based on varying degrees of evidence certainty, the AGA recommends or suggests the following management specifics in adult outpatients with moderate to severe disease:
- Any of the following is recommended over no treatment: infliximab (Remicade), golimumab (Simponi), vedolizumab (Entyvio), tofacitinib (Xeljanz), upadacitinib (Rinvoq), ustekinumab (Stelara), ozanimod (Zeposia), etrasimod (Velsipity), risankizumab (Skyrizi), and guselkumab (Tremfya).
- Adalimumab (Humira), filgotinib (Jyseleca), and mirikizumab (Omvoh) are suggested over no treatment.
- Biosimilars to infliximab, adalimumab, and ustekinumab can be considered of equivalent efficacy to their originator drugs.
- For patients naive to advanced therapies, the AGA panel proposes using a higher-efficacy medication (eg, infliximab, vedolizumab, ozanimod, etrasimod, upadacitinib, risankizumab, and guselkumab) or an intermediate-efficacy medication (golimumab, ustekinumab, tofacitinib, filgotinib, and mirikizumab) rather than a lower-efficacy medication such as adalimumab.
- In patients previously exposed to advanced therapy, particularly tumor necrosis factor (TNF)–alpha antagonists, the panel suggests using a higher-efficacy medication (tofacitinib, upadacitinib, and ustekinumab) or an intermediate-efficacy agent (filgotinib, mirikizumab, risankizumab, and guselkumab) over a lower-efficacy medication (adalimumab, vedolizumab, ozanimod, and etrasimod).
- The panel suggests against the use of thiopurine monotherapy for inducing remission but suggests thiopurine monotherapy over no treatment for maintenance of (typically corticosteroid-induced) remission.
- The panel suggests against the use of methotrexate monotherapy for induction or maintenance of remission.
- Infliximab, adalimumab, and golimumab in combination with an immunomodulator are suggested over monotherapy.
- The panel makes no recommendation for or against non-TNF antagonist biologics in combination with an immunomodulator over non-TNF biologics alone.
- For patients in corticosteroid-free clinical remission for at least 6 months on combination therapy with TNF antagonists and immunomodulators, the panel suggests against withdrawing TNF antagonists but makes no recommendation for or against withdrawing immunomodulators.
- For those who have failed 5-ASAs and have escalated to immunomodulators or advanced therapies, the panel suggests stopping these agents. It suggests the early use of advanced therapies and/or immunomodulator therapy rather than gradual step-up after failure of 5-ASAs.
According to Lewis, the guidance will be useful to both community physicians and highly specialized gastroenterologists. “While few practicing physicians will be able to commit the entirety of the classifications in this guideline to memory, the tool is a quick reference resource to help providers and patients to choose between the many options,” he said.
However, he noted that not all patients and providers may have the same priorities as the guidelines. “There are a few nuances to the methods of the AGA guidelines. For example, the panel prioritized efficacy over safety because the incidence of serious adverse events secondary to medications is relatively rare.”
Lewis also noted that the way the panel classified higher-, intermediate-, and lower-efficacy medications sometimes produced surprising results. “For example, among patients naive to advanced therapies, the IL [interleukin]–23 inhibitors risankizumab and guselkumab were classified as higher efficacy, while the IL-12/23 inhibitor ustekinumab was considered intermediate efficacy,” he said. “These were reversed for patients with prior exposure to advanced therapies, where ustekinumab was considered higher efficacy and all three IL-23 inhibitors were considered intermediate efficacy.”
The Future
The panel identified several knowledge gaps that future studies should address. These include a paucity of head-to-head comparison trials, including active comparators to accurately inform positioning of different treatments and therapeutic mechanisms.
The panelists also noted a literature gap on the efficacy of different therapies in the setting of failure or intolerance to non-TNF antagonist advanced therapy, which could be relevant to drugs that may have a greater overlap in their therapeutic mechanisms — for instance, anti-trafficking agents.
They pointed to a paucity of data on how predictive models can inform future treatment selection in the real-world setting. “There is clearly a need for identifying biomarkers predictive of response to individual therapies, to facilitate optimal choice of therapies,” they wrote.
The panel also recognized that novel therapeutic strategies may soon be in use, including combination advanced therapy or episodic use of nonimmunogenic advanced therapies such as small molecules. “Further primary data are required to accurately inform the positioning of such strategies,” they wrote.
These guidelines were fully funded by the AGA Institute. Singh and Agrawal are supported by the National Institute of Diabetes and Digestive and Kidney Disease (NIDDK), and Ananthakrishnan is supported by the NIDDK, as well as by the Leona M. and Harry B. Helmsley Charitable Trust and the Chleck Family Foundation. Singh disclosed Institutional research grants from Pfizer. Agrawal reported consulting for Douglas Pharmaceuticals. Several coauthors disclosed receiving consulting fees and/or research support from various private companies in the healthcare field. One author reported stock ownership stock in Exact Sciences. Lewis reported consulting, advisory board service, or data monitoring for Amgen, Arena Pharmaceuticals, Bristol Myers Squibb, Celgene, Eli Lilly and Company, Galapagos, Gilead, Janssen Pharmaceuticals, Merck, Pfizer, Protagonist Therapeutics, and Sanofi. He received research funding or in-kind support from Nestle Health Science, Takeda, Janssen Pharmaceuticals, AbbVie, and Eli Lilly and has had educational grants from Janssen.
A version of this article appeared on Medscape.com.
In a rapidly expanding therapeutic landscape,
“These are the first living guidelines published by a GI society, highlighting the interest and need to provide timely guidance to all stakeholders in a rapidly evolving field,” first author Siddharth Singh, MD, of the Division of Gastroenterology in the Department of Medicine at University of California, San Diego, said in an interview. Living guidance allows for ongoing revision of individual recommendations as new data emerge. Nearly 2 million Americans have UC.
Issued in Gastroenterology and updating the last guidance in 2020, the recommendations suggest more efficacious drugs should be used sooner. “Early use of advanced therapies including biologics and small-molecule drugs are more effective than 5-aminosalicylates [5-ASAs] or thiopurines and methotrexate for most patients with moderate to severe UC and those with poor prognostic factors,” coauthor and gastroenterologist Manasi Agrawal, MD, MS, an assistant professor of medicine at Icahn School of Medicine at Mount Sinai in New York City, said in an interview.
“We provide a practical guidance based on best-available evidence to make it easy for the treating clinician to make informed choices from the multiplicity of available treatments for UC,” added guidelines coauthor Ashwin Ananthakrishnan, MBBS, MPH, AGAF, a gastroenterologist at Massachusetts General Hospital in Boston.
The comprehensive, patient-centered document comes with this caveat from the AGA panel: “These guidelines are meant to be broad recommendations for management of patients with moderate to severe UC and are not intended to address the intricacies of individual patients,” they wrote. “Provider experience and patient values and preferences can inform treating providers and patients to reasonably choose alternative treatment options.”
One gastroenterologist who has been eagerly awaiting these guidelines but not involved in the panel is James D. Lewis, MD, MSCE, AGAF, a professor of medicine and epidemiology at Perelman School of Medicine at the University of Pennsylvania, Philadelphia. “The choice of medications for moderately to severely active UC has expanded tremendously in the past few years,” he said in an interview. “This resulted in the dismantling of the historical therapeutic pyramid.” And while there are many more treatment options, knowing which medication to use for which patient and in which sequence has become much more complicated.
“These guidelines will be extremely helpful for clinicians trying to navigate this new era of UC care,” he said.
The guidelines also outline implementation considerations for optimal use in different scenarios. “Key considerations include patient-related factors such as age, frailty, other health conditions, consideration for pregnancy, patient preferences, and access to healthcare,” Agrawal said.
Specifics
Overall, the guidance recommends advanced or immunomodulatory therapy after failure of 5-ASAs rather than a step-up approach. Moderate to severe disease is defined as a Mayo endoscopic severity subscore of 2 or 3.
The recommendation may also apply to mild disease in the presence of a high burden of inflammation and a poor prognosis or steroid dependence or resistance.
The AGA guideline panelists took account of differences in treatment efficacy between drugs within the same therapeutic class and made their recommendations by specific drugs rather than therapy class.
Based on varying degrees of evidence certainty, the AGA recommends or suggests the following management specifics in adult outpatients with moderate to severe disease:
- Any of the following is recommended over no treatment: infliximab (Remicade), golimumab (Simponi), vedolizumab (Entyvio), tofacitinib (Xeljanz), upadacitinib (Rinvoq), ustekinumab (Stelara), ozanimod (Zeposia), etrasimod (Velsipity), risankizumab (Skyrizi), and guselkumab (Tremfya).
- Adalimumab (Humira), filgotinib (Jyseleca), and mirikizumab (Omvoh) are suggested over no treatment.
- Biosimilars to infliximab, adalimumab, and ustekinumab can be considered of equivalent efficacy to their originator drugs.
- For patients naive to advanced therapies, the AGA panel proposes using a higher-efficacy medication (eg, infliximab, vedolizumab, ozanimod, etrasimod, upadacitinib, risankizumab, and guselkumab) or an intermediate-efficacy medication (golimumab, ustekinumab, tofacitinib, filgotinib, and mirikizumab) rather than a lower-efficacy medication such as adalimumab.
- In patients previously exposed to advanced therapy, particularly tumor necrosis factor (TNF)–alpha antagonists, the panel suggests using a higher-efficacy medication (tofacitinib, upadacitinib, and ustekinumab) or an intermediate-efficacy agent (filgotinib, mirikizumab, risankizumab, and guselkumab) over a lower-efficacy medication (adalimumab, vedolizumab, ozanimod, and etrasimod).
- The panel suggests against the use of thiopurine monotherapy for inducing remission but suggests thiopurine monotherapy over no treatment for maintenance of (typically corticosteroid-induced) remission.
- The panel suggests against the use of methotrexate monotherapy for induction or maintenance of remission.
- Infliximab, adalimumab, and golimumab in combination with an immunomodulator are suggested over monotherapy.
- The panel makes no recommendation for or against non-TNF antagonist biologics in combination with an immunomodulator over non-TNF biologics alone.
- For patients in corticosteroid-free clinical remission for at least 6 months on combination therapy with TNF antagonists and immunomodulators, the panel suggests against withdrawing TNF antagonists but makes no recommendation for or against withdrawing immunomodulators.
- For those who have failed 5-ASAs and have escalated to immunomodulators or advanced therapies, the panel suggests stopping these agents. It suggests the early use of advanced therapies and/or immunomodulator therapy rather than gradual step-up after failure of 5-ASAs.
According to Lewis, the guidance will be useful to both community physicians and highly specialized gastroenterologists. “While few practicing physicians will be able to commit the entirety of the classifications in this guideline to memory, the tool is a quick reference resource to help providers and patients to choose between the many options,” he said.
However, he noted that not all patients and providers may have the same priorities as the guidelines. “There are a few nuances to the methods of the AGA guidelines. For example, the panel prioritized efficacy over safety because the incidence of serious adverse events secondary to medications is relatively rare.”
Lewis also noted that the way the panel classified higher-, intermediate-, and lower-efficacy medications sometimes produced surprising results. “For example, among patients naive to advanced therapies, the IL [interleukin]–23 inhibitors risankizumab and guselkumab were classified as higher efficacy, while the IL-12/23 inhibitor ustekinumab was considered intermediate efficacy,” he said. “These were reversed for patients with prior exposure to advanced therapies, where ustekinumab was considered higher efficacy and all three IL-23 inhibitors were considered intermediate efficacy.”
The Future
The panel identified several knowledge gaps that future studies should address. These include a paucity of head-to-head comparison trials, including active comparators to accurately inform positioning of different treatments and therapeutic mechanisms.
The panelists also noted a literature gap on the efficacy of different therapies in the setting of failure or intolerance to non-TNF antagonist advanced therapy, which could be relevant to drugs that may have a greater overlap in their therapeutic mechanisms — for instance, anti-trafficking agents.
They pointed to a paucity of data on how predictive models can inform future treatment selection in the real-world setting. “There is clearly a need for identifying biomarkers predictive of response to individual therapies, to facilitate optimal choice of therapies,” they wrote.
The panel also recognized that novel therapeutic strategies may soon be in use, including combination advanced therapy or episodic use of nonimmunogenic advanced therapies such as small molecules. “Further primary data are required to accurately inform the positioning of such strategies,” they wrote.
These guidelines were fully funded by the AGA Institute. Singh and Agrawal are supported by the National Institute of Diabetes and Digestive and Kidney Disease (NIDDK), and Ananthakrishnan is supported by the NIDDK, as well as by the Leona M. and Harry B. Helmsley Charitable Trust and the Chleck Family Foundation. Singh disclosed Institutional research grants from Pfizer. Agrawal reported consulting for Douglas Pharmaceuticals. Several coauthors disclosed receiving consulting fees and/or research support from various private companies in the healthcare field. One author reported stock ownership stock in Exact Sciences. Lewis reported consulting, advisory board service, or data monitoring for Amgen, Arena Pharmaceuticals, Bristol Myers Squibb, Celgene, Eli Lilly and Company, Galapagos, Gilead, Janssen Pharmaceuticals, Merck, Pfizer, Protagonist Therapeutics, and Sanofi. He received research funding or in-kind support from Nestle Health Science, Takeda, Janssen Pharmaceuticals, AbbVie, and Eli Lilly and has had educational grants from Janssen.
A version of this article appeared on Medscape.com.
In a rapidly expanding therapeutic landscape,
“These are the first living guidelines published by a GI society, highlighting the interest and need to provide timely guidance to all stakeholders in a rapidly evolving field,” first author Siddharth Singh, MD, of the Division of Gastroenterology in the Department of Medicine at University of California, San Diego, said in an interview. Living guidance allows for ongoing revision of individual recommendations as new data emerge. Nearly 2 million Americans have UC.
Issued in Gastroenterology and updating the last guidance in 2020, the recommendations suggest more efficacious drugs should be used sooner. “Early use of advanced therapies including biologics and small-molecule drugs are more effective than 5-aminosalicylates [5-ASAs] or thiopurines and methotrexate for most patients with moderate to severe UC and those with poor prognostic factors,” coauthor and gastroenterologist Manasi Agrawal, MD, MS, an assistant professor of medicine at Icahn School of Medicine at Mount Sinai in New York City, said in an interview.
“We provide a practical guidance based on best-available evidence to make it easy for the treating clinician to make informed choices from the multiplicity of available treatments for UC,” added guidelines coauthor Ashwin Ananthakrishnan, MBBS, MPH, AGAF, a gastroenterologist at Massachusetts General Hospital in Boston.
The comprehensive, patient-centered document comes with this caveat from the AGA panel: “These guidelines are meant to be broad recommendations for management of patients with moderate to severe UC and are not intended to address the intricacies of individual patients,” they wrote. “Provider experience and patient values and preferences can inform treating providers and patients to reasonably choose alternative treatment options.”
One gastroenterologist who has been eagerly awaiting these guidelines but not involved in the panel is James D. Lewis, MD, MSCE, AGAF, a professor of medicine and epidemiology at Perelman School of Medicine at the University of Pennsylvania, Philadelphia. “The choice of medications for moderately to severely active UC has expanded tremendously in the past few years,” he said in an interview. “This resulted in the dismantling of the historical therapeutic pyramid.” And while there are many more treatment options, knowing which medication to use for which patient and in which sequence has become much more complicated.
“These guidelines will be extremely helpful for clinicians trying to navigate this new era of UC care,” he said.
The guidelines also outline implementation considerations for optimal use in different scenarios. “Key considerations include patient-related factors such as age, frailty, other health conditions, consideration for pregnancy, patient preferences, and access to healthcare,” Agrawal said.
Specifics
Overall, the guidance recommends advanced or immunomodulatory therapy after failure of 5-ASAs rather than a step-up approach. Moderate to severe disease is defined as a Mayo endoscopic severity subscore of 2 or 3.
The recommendation may also apply to mild disease in the presence of a high burden of inflammation and a poor prognosis or steroid dependence or resistance.
The AGA guideline panelists took account of differences in treatment efficacy between drugs within the same therapeutic class and made their recommendations by specific drugs rather than therapy class.
Based on varying degrees of evidence certainty, the AGA recommends or suggests the following management specifics in adult outpatients with moderate to severe disease:
- Any of the following is recommended over no treatment: infliximab (Remicade), golimumab (Simponi), vedolizumab (Entyvio), tofacitinib (Xeljanz), upadacitinib (Rinvoq), ustekinumab (Stelara), ozanimod (Zeposia), etrasimod (Velsipity), risankizumab (Skyrizi), and guselkumab (Tremfya).
- Adalimumab (Humira), filgotinib (Jyseleca), and mirikizumab (Omvoh) are suggested over no treatment.
- Biosimilars to infliximab, adalimumab, and ustekinumab can be considered of equivalent efficacy to their originator drugs.
- For patients naive to advanced therapies, the AGA panel proposes using a higher-efficacy medication (eg, infliximab, vedolizumab, ozanimod, etrasimod, upadacitinib, risankizumab, and guselkumab) or an intermediate-efficacy medication (golimumab, ustekinumab, tofacitinib, filgotinib, and mirikizumab) rather than a lower-efficacy medication such as adalimumab.
- In patients previously exposed to advanced therapy, particularly tumor necrosis factor (TNF)–alpha antagonists, the panel suggests using a higher-efficacy medication (tofacitinib, upadacitinib, and ustekinumab) or an intermediate-efficacy agent (filgotinib, mirikizumab, risankizumab, and guselkumab) over a lower-efficacy medication (adalimumab, vedolizumab, ozanimod, and etrasimod).
- The panel suggests against the use of thiopurine monotherapy for inducing remission but suggests thiopurine monotherapy over no treatment for maintenance of (typically corticosteroid-induced) remission.
- The panel suggests against the use of methotrexate monotherapy for induction or maintenance of remission.
- Infliximab, adalimumab, and golimumab in combination with an immunomodulator are suggested over monotherapy.
- The panel makes no recommendation for or against non-TNF antagonist biologics in combination with an immunomodulator over non-TNF biologics alone.
- For patients in corticosteroid-free clinical remission for at least 6 months on combination therapy with TNF antagonists and immunomodulators, the panel suggests against withdrawing TNF antagonists but makes no recommendation for or against withdrawing immunomodulators.
- For those who have failed 5-ASAs and have escalated to immunomodulators or advanced therapies, the panel suggests stopping these agents. It suggests the early use of advanced therapies and/or immunomodulator therapy rather than gradual step-up after failure of 5-ASAs.
According to Lewis, the guidance will be useful to both community physicians and highly specialized gastroenterologists. “While few practicing physicians will be able to commit the entirety of the classifications in this guideline to memory, the tool is a quick reference resource to help providers and patients to choose between the many options,” he said.
However, he noted that not all patients and providers may have the same priorities as the guidelines. “There are a few nuances to the methods of the AGA guidelines. For example, the panel prioritized efficacy over safety because the incidence of serious adverse events secondary to medications is relatively rare.”
Lewis also noted that the way the panel classified higher-, intermediate-, and lower-efficacy medications sometimes produced surprising results. “For example, among patients naive to advanced therapies, the IL [interleukin]–23 inhibitors risankizumab and guselkumab were classified as higher efficacy, while the IL-12/23 inhibitor ustekinumab was considered intermediate efficacy,” he said. “These were reversed for patients with prior exposure to advanced therapies, where ustekinumab was considered higher efficacy and all three IL-23 inhibitors were considered intermediate efficacy.”
The Future
The panel identified several knowledge gaps that future studies should address. These include a paucity of head-to-head comparison trials, including active comparators to accurately inform positioning of different treatments and therapeutic mechanisms.
The panelists also noted a literature gap on the efficacy of different therapies in the setting of failure or intolerance to non-TNF antagonist advanced therapy, which could be relevant to drugs that may have a greater overlap in their therapeutic mechanisms — for instance, anti-trafficking agents.
They pointed to a paucity of data on how predictive models can inform future treatment selection in the real-world setting. “There is clearly a need for identifying biomarkers predictive of response to individual therapies, to facilitate optimal choice of therapies,” they wrote.
The panel also recognized that novel therapeutic strategies may soon be in use, including combination advanced therapy or episodic use of nonimmunogenic advanced therapies such as small molecules. “Further primary data are required to accurately inform the positioning of such strategies,” they wrote.
These guidelines were fully funded by the AGA Institute. Singh and Agrawal are supported by the National Institute of Diabetes and Digestive and Kidney Disease (NIDDK), and Ananthakrishnan is supported by the NIDDK, as well as by the Leona M. and Harry B. Helmsley Charitable Trust and the Chleck Family Foundation. Singh disclosed Institutional research grants from Pfizer. Agrawal reported consulting for Douglas Pharmaceuticals. Several coauthors disclosed receiving consulting fees and/or research support from various private companies in the healthcare field. One author reported stock ownership stock in Exact Sciences. Lewis reported consulting, advisory board service, or data monitoring for Amgen, Arena Pharmaceuticals, Bristol Myers Squibb, Celgene, Eli Lilly and Company, Galapagos, Gilead, Janssen Pharmaceuticals, Merck, Pfizer, Protagonist Therapeutics, and Sanofi. He received research funding or in-kind support from Nestle Health Science, Takeda, Janssen Pharmaceuticals, AbbVie, and Eli Lilly and has had educational grants from Janssen.
A version of this article appeared on Medscape.com.
FROM GASTROENTEROLOGY
USPSTF: To Prevent Congenital Syphilis Screen Early in All Pregnancies
The United States Preventive Services Task Force (USPSTF) has issued an updated draft recommendation statement advising early screening for syphilis in all pregnant persons with no signs or symptoms of syphilis, regardless of risk. Those with abnormal screening results should receive “timely, equitable, and evidence-based evaluation and treatment for syphilis,” it advises.
Reaffirming the task force’s 2018 statement, in which an evidence review found the benefits of screening substantially outweighed the harms, the current draft is based on no substantial new data. It is open for public input until December 23.
“Congenital syphilis infection is still an important health problem, and rates are not decreasing as they should,” said USPSTF panel member Carlos R. Jaén, MD, PhD, MS, Dr. and Mrs. James L. Holly Distinguished Chair in the Department of Family and Community Medicine at the Joe R. and Teresa Lozano Long School of Medicine at the University of Texas Health Science Center at San Antonio. “Cases are 10 times higher today than they were a decade ago, despite the harmful consequences of syphilis infection in mother and baby and despite it being a preventable and easily treated condition.”
The statement notes that untreated syphilis infection in mothers is associated with miscarriage, premature birth, low birth weight, stillbirth, and neonatal death. Syphilis infection is linked to significant abnormalities in infants such as deformed bones, anemia, enlarged liver and spleen, jaundice, meningitis, and brain and nerve problems resulting in permanent vision or hearing loss.
The USPSTF statement aligns with the recommendations of other healthcare organizations, including the American College of Obstetricians and Gynecologists (ACOG), which issued a clinical practice advisory on prenatal syphilis screening in April 2024.
This advisory recommends obstetric care providers screen all pregnant individuals serologically for syphilis at the first prenatal care visit, with universal rescreening during the third trimester and at birth rather than targeted risk-based testing.
The advisory notes that two in five infants with congenital syphilis were born to persons who received no prenatal care. It urges making any healthcare encounter during pregnancy — in emergency departments, jails, syringe service programs, and maternal and child health clinics — an opportunity to screen for syphilis.
So far, there is no official guidance on preconception screening for persons planning a pregnancy, according to Allison Bryant Mantha, MD, MPH, a maternal-fetal medicine specialist at Mass General Brigham health system and an associate professor at Harvard School of Medicine in Boston, Massachusetts, who coauthored the ACOG advisory.
But Lynn M. Yee, MD, MPH, an associate professor of maternal-fetal medicine at Northwestern University Feinberg School of Medicine and director of the Northwestern Medicine Women’s Infectious Disease Program in Chicago, Illinois, said syphilis testing could easily be part of a prepregnancy “bucket” of health checkup items along with other sexually transmitted infections and blood pressure.
By the Numbers
In 2022, there were 3761 cases of congenital syphilis in the United States, including 231 stillbirths and 51 infant deaths — the highest number reported in more than 30 years and more than 10 times that reported in 2012.
At play may be social, economic, and immigration status factors creating barriers to prenatal care as well as declines in prevention infrastructure and resources.
Although most syphilis cases occur in men, the increase in incidence rate in women was two to four times higher than that of men from 2017 to 2021.
Why Such Persistently High Rates?
Despite a widely available test and cost-effective penicillin treatment covered by most insurance, congenital syphilis remains a challenge. According to Bryant, many mothers are still presenting for care and testing late in pregnancy. “Differential access to care is just one of many reasons,” she said.
Stigma and bias may also play a part, according to Yee. “Some clinicians may think their patient population is not the kind to be at risk and doesn’t need to be screened,” she said. Furthermore, screening is not a one-off test but a two-step process, and serology results can be hard to understand and easy to misinterpret.
In addition, some situations may promote ongoing disease, according to Yee. “Reinfection can occur after treatment if a patient keeps returning to a partner who refuses treatment,” Yee said.
On an optimistic note, however, the Centers for Disease Control and Prevention (CDC) reports that in some areas increases in newborn syphilis cases appear to be slowing — with a 3% increase in 2022 than with a 30% or higher annual increases in previous years. In 2020-2021, for example, congenital cases rose by 32% and resulted in 220 stillbirths and infant deaths.
Going Forward
The USPSTF statement identifies knowledge gaps. These include studies to evaluate the benefits and harms of repeat screening later in pregnancy and to evaluate the benefits and harms of such strategies as rapid point-of-care tests. The USPSTF also called for research on disparities in syphilis incidence and screening rates to reduce these disparities in populations.
Within these vulnerable groups, the CDC noted that babies born to Black, Hispanic, or Native American/Alaska Native mothers in 2021 were as much as eight times more likely to have congenital syphilis than those born to their White counterparts.
Jaén, Bryant, and Yee had no competing interests relevant to their comments.
A version of this article appeared on Medscape.com.
The United States Preventive Services Task Force (USPSTF) has issued an updated draft recommendation statement advising early screening for syphilis in all pregnant persons with no signs or symptoms of syphilis, regardless of risk. Those with abnormal screening results should receive “timely, equitable, and evidence-based evaluation and treatment for syphilis,” it advises.
Reaffirming the task force’s 2018 statement, in which an evidence review found the benefits of screening substantially outweighed the harms, the current draft is based on no substantial new data. It is open for public input until December 23.
“Congenital syphilis infection is still an important health problem, and rates are not decreasing as they should,” said USPSTF panel member Carlos R. Jaén, MD, PhD, MS, Dr. and Mrs. James L. Holly Distinguished Chair in the Department of Family and Community Medicine at the Joe R. and Teresa Lozano Long School of Medicine at the University of Texas Health Science Center at San Antonio. “Cases are 10 times higher today than they were a decade ago, despite the harmful consequences of syphilis infection in mother and baby and despite it being a preventable and easily treated condition.”
The statement notes that untreated syphilis infection in mothers is associated with miscarriage, premature birth, low birth weight, stillbirth, and neonatal death. Syphilis infection is linked to significant abnormalities in infants such as deformed bones, anemia, enlarged liver and spleen, jaundice, meningitis, and brain and nerve problems resulting in permanent vision or hearing loss.
The USPSTF statement aligns with the recommendations of other healthcare organizations, including the American College of Obstetricians and Gynecologists (ACOG), which issued a clinical practice advisory on prenatal syphilis screening in April 2024.
This advisory recommends obstetric care providers screen all pregnant individuals serologically for syphilis at the first prenatal care visit, with universal rescreening during the third trimester and at birth rather than targeted risk-based testing.
The advisory notes that two in five infants with congenital syphilis were born to persons who received no prenatal care. It urges making any healthcare encounter during pregnancy — in emergency departments, jails, syringe service programs, and maternal and child health clinics — an opportunity to screen for syphilis.
So far, there is no official guidance on preconception screening for persons planning a pregnancy, according to Allison Bryant Mantha, MD, MPH, a maternal-fetal medicine specialist at Mass General Brigham health system and an associate professor at Harvard School of Medicine in Boston, Massachusetts, who coauthored the ACOG advisory.
But Lynn M. Yee, MD, MPH, an associate professor of maternal-fetal medicine at Northwestern University Feinberg School of Medicine and director of the Northwestern Medicine Women’s Infectious Disease Program in Chicago, Illinois, said syphilis testing could easily be part of a prepregnancy “bucket” of health checkup items along with other sexually transmitted infections and blood pressure.
By the Numbers
In 2022, there were 3761 cases of congenital syphilis in the United States, including 231 stillbirths and 51 infant deaths — the highest number reported in more than 30 years and more than 10 times that reported in 2012.
At play may be social, economic, and immigration status factors creating barriers to prenatal care as well as declines in prevention infrastructure and resources.
Although most syphilis cases occur in men, the increase in incidence rate in women was two to four times higher than that of men from 2017 to 2021.
Why Such Persistently High Rates?
Despite a widely available test and cost-effective penicillin treatment covered by most insurance, congenital syphilis remains a challenge. According to Bryant, many mothers are still presenting for care and testing late in pregnancy. “Differential access to care is just one of many reasons,” she said.
Stigma and bias may also play a part, according to Yee. “Some clinicians may think their patient population is not the kind to be at risk and doesn’t need to be screened,” she said. Furthermore, screening is not a one-off test but a two-step process, and serology results can be hard to understand and easy to misinterpret.
In addition, some situations may promote ongoing disease, according to Yee. “Reinfection can occur after treatment if a patient keeps returning to a partner who refuses treatment,” Yee said.
On an optimistic note, however, the Centers for Disease Control and Prevention (CDC) reports that in some areas increases in newborn syphilis cases appear to be slowing — with a 3% increase in 2022 than with a 30% or higher annual increases in previous years. In 2020-2021, for example, congenital cases rose by 32% and resulted in 220 stillbirths and infant deaths.
Going Forward
The USPSTF statement identifies knowledge gaps. These include studies to evaluate the benefits and harms of repeat screening later in pregnancy and to evaluate the benefits and harms of such strategies as rapid point-of-care tests. The USPSTF also called for research on disparities in syphilis incidence and screening rates to reduce these disparities in populations.
Within these vulnerable groups, the CDC noted that babies born to Black, Hispanic, or Native American/Alaska Native mothers in 2021 were as much as eight times more likely to have congenital syphilis than those born to their White counterparts.
Jaén, Bryant, and Yee had no competing interests relevant to their comments.
A version of this article appeared on Medscape.com.
The United States Preventive Services Task Force (USPSTF) has issued an updated draft recommendation statement advising early screening for syphilis in all pregnant persons with no signs or symptoms of syphilis, regardless of risk. Those with abnormal screening results should receive “timely, equitable, and evidence-based evaluation and treatment for syphilis,” it advises.
Reaffirming the task force’s 2018 statement, in which an evidence review found the benefits of screening substantially outweighed the harms, the current draft is based on no substantial new data. It is open for public input until December 23.
“Congenital syphilis infection is still an important health problem, and rates are not decreasing as they should,” said USPSTF panel member Carlos R. Jaén, MD, PhD, MS, Dr. and Mrs. James L. Holly Distinguished Chair in the Department of Family and Community Medicine at the Joe R. and Teresa Lozano Long School of Medicine at the University of Texas Health Science Center at San Antonio. “Cases are 10 times higher today than they were a decade ago, despite the harmful consequences of syphilis infection in mother and baby and despite it being a preventable and easily treated condition.”
The statement notes that untreated syphilis infection in mothers is associated with miscarriage, premature birth, low birth weight, stillbirth, and neonatal death. Syphilis infection is linked to significant abnormalities in infants such as deformed bones, anemia, enlarged liver and spleen, jaundice, meningitis, and brain and nerve problems resulting in permanent vision or hearing loss.
The USPSTF statement aligns with the recommendations of other healthcare organizations, including the American College of Obstetricians and Gynecologists (ACOG), which issued a clinical practice advisory on prenatal syphilis screening in April 2024.
This advisory recommends obstetric care providers screen all pregnant individuals serologically for syphilis at the first prenatal care visit, with universal rescreening during the third trimester and at birth rather than targeted risk-based testing.
The advisory notes that two in five infants with congenital syphilis were born to persons who received no prenatal care. It urges making any healthcare encounter during pregnancy — in emergency departments, jails, syringe service programs, and maternal and child health clinics — an opportunity to screen for syphilis.
So far, there is no official guidance on preconception screening for persons planning a pregnancy, according to Allison Bryant Mantha, MD, MPH, a maternal-fetal medicine specialist at Mass General Brigham health system and an associate professor at Harvard School of Medicine in Boston, Massachusetts, who coauthored the ACOG advisory.
But Lynn M. Yee, MD, MPH, an associate professor of maternal-fetal medicine at Northwestern University Feinberg School of Medicine and director of the Northwestern Medicine Women’s Infectious Disease Program in Chicago, Illinois, said syphilis testing could easily be part of a prepregnancy “bucket” of health checkup items along with other sexually transmitted infections and blood pressure.
By the Numbers
In 2022, there were 3761 cases of congenital syphilis in the United States, including 231 stillbirths and 51 infant deaths — the highest number reported in more than 30 years and more than 10 times that reported in 2012.
At play may be social, economic, and immigration status factors creating barriers to prenatal care as well as declines in prevention infrastructure and resources.
Although most syphilis cases occur in men, the increase in incidence rate in women was two to four times higher than that of men from 2017 to 2021.
Why Such Persistently High Rates?
Despite a widely available test and cost-effective penicillin treatment covered by most insurance, congenital syphilis remains a challenge. According to Bryant, many mothers are still presenting for care and testing late in pregnancy. “Differential access to care is just one of many reasons,” she said.
Stigma and bias may also play a part, according to Yee. “Some clinicians may think their patient population is not the kind to be at risk and doesn’t need to be screened,” she said. Furthermore, screening is not a one-off test but a two-step process, and serology results can be hard to understand and easy to misinterpret.
In addition, some situations may promote ongoing disease, according to Yee. “Reinfection can occur after treatment if a patient keeps returning to a partner who refuses treatment,” Yee said.
On an optimistic note, however, the Centers for Disease Control and Prevention (CDC) reports that in some areas increases in newborn syphilis cases appear to be slowing — with a 3% increase in 2022 than with a 30% or higher annual increases in previous years. In 2020-2021, for example, congenital cases rose by 32% and resulted in 220 stillbirths and infant deaths.
Going Forward
The USPSTF statement identifies knowledge gaps. These include studies to evaluate the benefits and harms of repeat screening later in pregnancy and to evaluate the benefits and harms of such strategies as rapid point-of-care tests. The USPSTF also called for research on disparities in syphilis incidence and screening rates to reduce these disparities in populations.
Within these vulnerable groups, the CDC noted that babies born to Black, Hispanic, or Native American/Alaska Native mothers in 2021 were as much as eight times more likely to have congenital syphilis than those born to their White counterparts.
Jaén, Bryant, and Yee had no competing interests relevant to their comments.
A version of this article appeared on Medscape.com.
Fibroids: Medical Therapy Not Hysterectomy Should Be First Treatment Choice Interventional Options Case Study
Although hysterectomy remains the most common procedure for treating fibroids and fibroids are the leading indication for hysterectomy, its long-term sequelae make less invasive alternatives the better choice for managing most of these myometrial masses, an invited clinical practice paper in the New England Journal of Medicine (NEJM) asserts.
The practice summary also calls for earlier identification and treatment of fibroid disease and may raise awareness among general gynecologists and primary care physicians less familiar with newer treatments.
Based on a review of evidence and existing formal guidelines, the paper urges wider use of uterus-sparing approaches such as hormone therapy, uterine-artery embolization, focused ultrasound ablation, and radiofrequency ablation. Authored by ob.gyns. Elizabeth A. Stewart, MD, and Shannon K. Laughlin-Tommaso, MD, MPH, of the Mayo Clinic in Rochester, Minnesota, the document also features textbook-style diagrams illustrating procedures.
“To clarify, this is not a new guidance but an invited clinical practice paper,” Laughlin-Tommaso told this news organization. “I believe NEJM recognized the gap in knowledge among all providers, for early diagnosis of uterine fibroids, especially in young patients and those presenting with anemia.”
The less invasive treatments highlighted in the paper can help women recover faster and resume their normal activities more quickly, said Laughlin-Tommaso. “Additionally, many studies have now shown that there are health benefits to keeping the uterus and the ovaries.”
Despite multiple uterine-sparing options, however, a recent study in a commercially insured population found nearly 60% of fibroid patients undergoing hysterectomy had never received a prior conservative treatment.
Why hysterectomy for a benign condition? Hysterectomy, which is universally available in ob.gyn. practices, makes decision-making easier for medical providers and patients, Laughlin-Tommaso explained. “It’s the only treatment that is definitive in that patients will not have bleeding or fibroids in the future and providers don’t have to determine which fibroids to treat or remove.”
More common in Black women, fibroids affect up to 80% of persons with a uterus during their lifetime and up to 50% have symptoms such as heavy and prolonged menstrual bleeding, anemia-associated fatigue, pelvic pressure, and menstrual and nonmenstrual pain, the authors noted. These lesions can also compress nearby structures causing painful intercourse, constipation, and urinary frequency, urgency, or retention.
In 2021 the American College of Obstetricians and Gynecologists issued a practice bulletin on the management of symptomatic uterine leiomyomas, similarly endorsing individualized care that accounts for the desire to preserve fertility or the uterus, increase quality of life, and reduce symptoms. It, too, recommended medical management as first-line treatment for symptomatic fibroids.
“This paper will be helpful for clinicians by covering some of the newer options such as gonadotropin-releasing hormone antagonists introduced in the past 5 years and tailoring treatment to patients depending on whether they still want to conceive,” Sandra M. Hurtado, MD, an ob.gyn. and an assistant professor at UTHealth Houston Medical Center and McGovern Medical School in Houston, Texas, said in an interview. “And the illustrations will be useful to doctors who are not gynecologists and will help to explain the interventional options to patients,” added Hurtado, who was not involved in the paper.
Offering another outside perspective on the paper, Charles J. Ascher-Walsh, MD, senior system vice chair for gynecology and division director of urogynecology in the Raquel and Jaime Gilinski Department of Obstetrics, Gynecology and Reproductive Science at Mount Sinai in New York City, called it a useful though not new summary. Reaching the wider audience of NEJM may raise awareness of newer fibroid therapies among general, nonspecialist ob.gyns., whose practices may concentrate largely on obstetrics, he added, “and the excellent illustrations clarify the treatment options.” In his view, broader awareness may increase much-needed funding for this neglected area of research.
Among the paper’s recommendations:
Diagnosis
Pelvic ultrasonography is the most cost-effective imaging method, providing information on size, location, and number of fibroids and ruling out adnexal masses. It is limited, however, by less-accurate resolution if the uterine volume is greater than 375 mL or if fibroids number more than four.
Medical Alternatives to Hysterectomy
Early diagnosis and first-line medical therapies are recommended.
Contraceptive hormones to control heavy menstrual bleeding are the first step in most algorithms for treating fibroid-related bleeding, despite low-quality evidence.
Nonsteroidal anti-inflammatory agents and tranexamic acid during menstruation also limit heavy menses but have more evidence of efficacy for idiopathic heavy menses.
Gonadotropin-releasing hormone (GnRH) agonists in depot form are approved for short-term preoperative therapy. While they cause amenorrhea in nearly 90% of patients and reduce uterine volume by 30%-60%, they have a high incidence of hypogonadal symptoms, including bone loss and hot flushes. They also cause a “steroidal flare” when the stored gonadotropins are released and cause subsequent heavy menstrual bleeding with the rapid decrease in estrogen levels.
Oral GnRH antagonist combinations are a major therapeutic advance, pairing a GnRH antagonist (such as elagolix or relugolix, which rapidly inhibit ovarian steroidogenesis) with estradiol and progestin at doses equivalent to systemic levels in the early follicular phase of the menstrual cycle.
In clinical trials these combinations decreased heavy menstrual bleeding by 50%-75%, pain by 40%-50%, and bulk-related symptoms through a 10% decrease in uterine volume. Side effects are few, with hot flushes, headaches, and nausea occurring in fewer than 20% of participants.
Smaller fibroids in the submucosal to intramural spaces can be treated transcervically, while larger lesions of any type or smaller subserosa fibroids are treated abdominally.
Uterine-artery embolization uses minimally invasive radiologically guided catheterization to release embolic particles directly into both uterine arteries. This process causes ischemic infarction of the fibroids and decreases bleeding, pain, and bulk-related symptoms.
Other procedures shrink individual fibroids with energy that creates coagulative necrosis. These include focused ultrasound ablation (with MRI or ultrasound guidance) and radiofrequency ablation (with laparoscopic or transcervical ultrasound guidance).
Unlike uterine-artery embolization, which treats all fibroids concurrently, these therapies require individual targeting of fibroids.
Radiofrequency ablation can be done concurrently with other surgical therapies, such as laparoscopic excision of endometriosis or hysteroscopic myomectomy.
Myomectomy, or the surgical removal of fibroids, is most often used in persons actively seeking pregnancy or having very large fibroids in whom shrinkage would be inadequate. Most guidelines recommend surgical excision rather than shrinking procedures to optimize fertility. However, myomectomy often commits patients to future cesarean section, which increases pregnancy-related morbidity.
Although myomectomy is seen as superior to uterine-artery embolization for improving quality of life, both approaches provide substantial symptom relief.
Recurrence
Incidence of recurring fibroids is high, with, for example, new fibroids developing in approximately 50% of persons within 5 years of myomectomy.
Earlier this year, a large cohort study reported that myomectomy was best for avoiding reintervention after surgical leiomyoma management.
Reintervention rates vary according to procedure, patient age, disease extent, and symptoms and can be as high as 33% up to 5 years after treatment, with lower percentages seen among persons older than 45 years of age.
Hysterectomy
Minimally invasive hysterectomy is recommended. Drawbacks to hysterectomy include perioperative risk and concomitant oophorectomy, which was common until the early 2000s when large cohort studies showed elevated risks of death, cardiovascular disease, dementia, and other illnesses compared with hysterectomy plus ovarian conservation. Oophorectomy but not hysterectomy rates have since decreased.
Still needing study, according to Laughlin-Tommaso are the underlying reasons for health disparities in fibroids, especially among Black and Latina individuals. “Some studies have found associations with vitamin D deficiency and with stress and racism,” she said.
Looking ahead, the authors stressed the need for a fibroid risk-prediction model, a staging system, and large randomized trials of treatment effectiveness. Also needed are methods for primary and secondary prevention. “Earlier screening and medical treatment in primary care settings could potentially minimize morbidity and the incidence of unnecessary hysterectomies, and primary care–based screening trials are warranted,” they wrote.
In addition to procedural illustrations the practice document includes a vignette of a 33-year-old never-pregnant Black woman (but desiring motherhood) with heavy menstrual bleeding, abdominal bloating, and non–iron deficiency anemia. Evaluation for thalassemia and sickle cell anemia is negative, but ultrasonography reveals an enlarged uterus with multiple fibroids and normal ovaries.
In line with the clinical review, the authors prescribe oral GnRH agonist combination therapy, plus iron and multivitamin supplementation, and recommend annual reassessment — earlier if pregnancy is desired or if symptoms escalate. Since the patient prioritizes fertility, hysterectomy would be appropriate only if she had biopsy-proven cancer.
The authors received no external funding for this practice paper, but both have funding from the National Institutes of Health for fibroid research. Laughlin-Tommaso reported royalties from UpToDate. Stewart reported research support from the Agency for Healthcare Research and Quality, and speaking, data-monitoring, and consulting fees for various private companies, including AbbVie, Anylam Pharmaceuticals, ASKA Pharma, and Myovant Sciences. She holds a patent on treatment for abnormal uterine bleeding and has been involved in CME for various medical educational agencies. Hurtado and Ascher-Walsh had no relevant conflicts of interest to declare.
A version of this article first appeared on Medscape.com.
Although hysterectomy remains the most common procedure for treating fibroids and fibroids are the leading indication for hysterectomy, its long-term sequelae make less invasive alternatives the better choice for managing most of these myometrial masses, an invited clinical practice paper in the New England Journal of Medicine (NEJM) asserts.
The practice summary also calls for earlier identification and treatment of fibroid disease and may raise awareness among general gynecologists and primary care physicians less familiar with newer treatments.
Based on a review of evidence and existing formal guidelines, the paper urges wider use of uterus-sparing approaches such as hormone therapy, uterine-artery embolization, focused ultrasound ablation, and radiofrequency ablation. Authored by ob.gyns. Elizabeth A. Stewart, MD, and Shannon K. Laughlin-Tommaso, MD, MPH, of the Mayo Clinic in Rochester, Minnesota, the document also features textbook-style diagrams illustrating procedures.
“To clarify, this is not a new guidance but an invited clinical practice paper,” Laughlin-Tommaso told this news organization. “I believe NEJM recognized the gap in knowledge among all providers, for early diagnosis of uterine fibroids, especially in young patients and those presenting with anemia.”
The less invasive treatments highlighted in the paper can help women recover faster and resume their normal activities more quickly, said Laughlin-Tommaso. “Additionally, many studies have now shown that there are health benefits to keeping the uterus and the ovaries.”
Despite multiple uterine-sparing options, however, a recent study in a commercially insured population found nearly 60% of fibroid patients undergoing hysterectomy had never received a prior conservative treatment.
Why hysterectomy for a benign condition? Hysterectomy, which is universally available in ob.gyn. practices, makes decision-making easier for medical providers and patients, Laughlin-Tommaso explained. “It’s the only treatment that is definitive in that patients will not have bleeding or fibroids in the future and providers don’t have to determine which fibroids to treat or remove.”
More common in Black women, fibroids affect up to 80% of persons with a uterus during their lifetime and up to 50% have symptoms such as heavy and prolonged menstrual bleeding, anemia-associated fatigue, pelvic pressure, and menstrual and nonmenstrual pain, the authors noted. These lesions can also compress nearby structures causing painful intercourse, constipation, and urinary frequency, urgency, or retention.
In 2021 the American College of Obstetricians and Gynecologists issued a practice bulletin on the management of symptomatic uterine leiomyomas, similarly endorsing individualized care that accounts for the desire to preserve fertility or the uterus, increase quality of life, and reduce symptoms. It, too, recommended medical management as first-line treatment for symptomatic fibroids.
“This paper will be helpful for clinicians by covering some of the newer options such as gonadotropin-releasing hormone antagonists introduced in the past 5 years and tailoring treatment to patients depending on whether they still want to conceive,” Sandra M. Hurtado, MD, an ob.gyn. and an assistant professor at UTHealth Houston Medical Center and McGovern Medical School in Houston, Texas, said in an interview. “And the illustrations will be useful to doctors who are not gynecologists and will help to explain the interventional options to patients,” added Hurtado, who was not involved in the paper.
Offering another outside perspective on the paper, Charles J. Ascher-Walsh, MD, senior system vice chair for gynecology and division director of urogynecology in the Raquel and Jaime Gilinski Department of Obstetrics, Gynecology and Reproductive Science at Mount Sinai in New York City, called it a useful though not new summary. Reaching the wider audience of NEJM may raise awareness of newer fibroid therapies among general, nonspecialist ob.gyns., whose practices may concentrate largely on obstetrics, he added, “and the excellent illustrations clarify the treatment options.” In his view, broader awareness may increase much-needed funding for this neglected area of research.
Among the paper’s recommendations:
Diagnosis
Pelvic ultrasonography is the most cost-effective imaging method, providing information on size, location, and number of fibroids and ruling out adnexal masses. It is limited, however, by less-accurate resolution if the uterine volume is greater than 375 mL or if fibroids number more than four.
Medical Alternatives to Hysterectomy
Early diagnosis and first-line medical therapies are recommended.
Contraceptive hormones to control heavy menstrual bleeding are the first step in most algorithms for treating fibroid-related bleeding, despite low-quality evidence.
Nonsteroidal anti-inflammatory agents and tranexamic acid during menstruation also limit heavy menses but have more evidence of efficacy for idiopathic heavy menses.
Gonadotropin-releasing hormone (GnRH) agonists in depot form are approved for short-term preoperative therapy. While they cause amenorrhea in nearly 90% of patients and reduce uterine volume by 30%-60%, they have a high incidence of hypogonadal symptoms, including bone loss and hot flushes. They also cause a “steroidal flare” when the stored gonadotropins are released and cause subsequent heavy menstrual bleeding with the rapid decrease in estrogen levels.
Oral GnRH antagonist combinations are a major therapeutic advance, pairing a GnRH antagonist (such as elagolix or relugolix, which rapidly inhibit ovarian steroidogenesis) with estradiol and progestin at doses equivalent to systemic levels in the early follicular phase of the menstrual cycle.
In clinical trials these combinations decreased heavy menstrual bleeding by 50%-75%, pain by 40%-50%, and bulk-related symptoms through a 10% decrease in uterine volume. Side effects are few, with hot flushes, headaches, and nausea occurring in fewer than 20% of participants.
Smaller fibroids in the submucosal to intramural spaces can be treated transcervically, while larger lesions of any type or smaller subserosa fibroids are treated abdominally.
Uterine-artery embolization uses minimally invasive radiologically guided catheterization to release embolic particles directly into both uterine arteries. This process causes ischemic infarction of the fibroids and decreases bleeding, pain, and bulk-related symptoms.
Other procedures shrink individual fibroids with energy that creates coagulative necrosis. These include focused ultrasound ablation (with MRI or ultrasound guidance) and radiofrequency ablation (with laparoscopic or transcervical ultrasound guidance).
Unlike uterine-artery embolization, which treats all fibroids concurrently, these therapies require individual targeting of fibroids.
Radiofrequency ablation can be done concurrently with other surgical therapies, such as laparoscopic excision of endometriosis or hysteroscopic myomectomy.
Myomectomy, or the surgical removal of fibroids, is most often used in persons actively seeking pregnancy or having very large fibroids in whom shrinkage would be inadequate. Most guidelines recommend surgical excision rather than shrinking procedures to optimize fertility. However, myomectomy often commits patients to future cesarean section, which increases pregnancy-related morbidity.
Although myomectomy is seen as superior to uterine-artery embolization for improving quality of life, both approaches provide substantial symptom relief.
Recurrence
Incidence of recurring fibroids is high, with, for example, new fibroids developing in approximately 50% of persons within 5 years of myomectomy.
Earlier this year, a large cohort study reported that myomectomy was best for avoiding reintervention after surgical leiomyoma management.
Reintervention rates vary according to procedure, patient age, disease extent, and symptoms and can be as high as 33% up to 5 years after treatment, with lower percentages seen among persons older than 45 years of age.
Hysterectomy
Minimally invasive hysterectomy is recommended. Drawbacks to hysterectomy include perioperative risk and concomitant oophorectomy, which was common until the early 2000s when large cohort studies showed elevated risks of death, cardiovascular disease, dementia, and other illnesses compared with hysterectomy plus ovarian conservation. Oophorectomy but not hysterectomy rates have since decreased.
Still needing study, according to Laughlin-Tommaso are the underlying reasons for health disparities in fibroids, especially among Black and Latina individuals. “Some studies have found associations with vitamin D deficiency and with stress and racism,” she said.
Looking ahead, the authors stressed the need for a fibroid risk-prediction model, a staging system, and large randomized trials of treatment effectiveness. Also needed are methods for primary and secondary prevention. “Earlier screening and medical treatment in primary care settings could potentially minimize morbidity and the incidence of unnecessary hysterectomies, and primary care–based screening trials are warranted,” they wrote.
In addition to procedural illustrations the practice document includes a vignette of a 33-year-old never-pregnant Black woman (but desiring motherhood) with heavy menstrual bleeding, abdominal bloating, and non–iron deficiency anemia. Evaluation for thalassemia and sickle cell anemia is negative, but ultrasonography reveals an enlarged uterus with multiple fibroids and normal ovaries.
In line with the clinical review, the authors prescribe oral GnRH agonist combination therapy, plus iron and multivitamin supplementation, and recommend annual reassessment — earlier if pregnancy is desired or if symptoms escalate. Since the patient prioritizes fertility, hysterectomy would be appropriate only if she had biopsy-proven cancer.
The authors received no external funding for this practice paper, but both have funding from the National Institutes of Health for fibroid research. Laughlin-Tommaso reported royalties from UpToDate. Stewart reported research support from the Agency for Healthcare Research and Quality, and speaking, data-monitoring, and consulting fees for various private companies, including AbbVie, Anylam Pharmaceuticals, ASKA Pharma, and Myovant Sciences. She holds a patent on treatment for abnormal uterine bleeding and has been involved in CME for various medical educational agencies. Hurtado and Ascher-Walsh had no relevant conflicts of interest to declare.
A version of this article first appeared on Medscape.com.
Although hysterectomy remains the most common procedure for treating fibroids and fibroids are the leading indication for hysterectomy, its long-term sequelae make less invasive alternatives the better choice for managing most of these myometrial masses, an invited clinical practice paper in the New England Journal of Medicine (NEJM) asserts.
The practice summary also calls for earlier identification and treatment of fibroid disease and may raise awareness among general gynecologists and primary care physicians less familiar with newer treatments.
Based on a review of evidence and existing formal guidelines, the paper urges wider use of uterus-sparing approaches such as hormone therapy, uterine-artery embolization, focused ultrasound ablation, and radiofrequency ablation. Authored by ob.gyns. Elizabeth A. Stewart, MD, and Shannon K. Laughlin-Tommaso, MD, MPH, of the Mayo Clinic in Rochester, Minnesota, the document also features textbook-style diagrams illustrating procedures.
“To clarify, this is not a new guidance but an invited clinical practice paper,” Laughlin-Tommaso told this news organization. “I believe NEJM recognized the gap in knowledge among all providers, for early diagnosis of uterine fibroids, especially in young patients and those presenting with anemia.”
The less invasive treatments highlighted in the paper can help women recover faster and resume their normal activities more quickly, said Laughlin-Tommaso. “Additionally, many studies have now shown that there are health benefits to keeping the uterus and the ovaries.”
Despite multiple uterine-sparing options, however, a recent study in a commercially insured population found nearly 60% of fibroid patients undergoing hysterectomy had never received a prior conservative treatment.
Why hysterectomy for a benign condition? Hysterectomy, which is universally available in ob.gyn. practices, makes decision-making easier for medical providers and patients, Laughlin-Tommaso explained. “It’s the only treatment that is definitive in that patients will not have bleeding or fibroids in the future and providers don’t have to determine which fibroids to treat or remove.”
More common in Black women, fibroids affect up to 80% of persons with a uterus during their lifetime and up to 50% have symptoms such as heavy and prolonged menstrual bleeding, anemia-associated fatigue, pelvic pressure, and menstrual and nonmenstrual pain, the authors noted. These lesions can also compress nearby structures causing painful intercourse, constipation, and urinary frequency, urgency, or retention.
In 2021 the American College of Obstetricians and Gynecologists issued a practice bulletin on the management of symptomatic uterine leiomyomas, similarly endorsing individualized care that accounts for the desire to preserve fertility or the uterus, increase quality of life, and reduce symptoms. It, too, recommended medical management as first-line treatment for symptomatic fibroids.
“This paper will be helpful for clinicians by covering some of the newer options such as gonadotropin-releasing hormone antagonists introduced in the past 5 years and tailoring treatment to patients depending on whether they still want to conceive,” Sandra M. Hurtado, MD, an ob.gyn. and an assistant professor at UTHealth Houston Medical Center and McGovern Medical School in Houston, Texas, said in an interview. “And the illustrations will be useful to doctors who are not gynecologists and will help to explain the interventional options to patients,” added Hurtado, who was not involved in the paper.
Offering another outside perspective on the paper, Charles J. Ascher-Walsh, MD, senior system vice chair for gynecology and division director of urogynecology in the Raquel and Jaime Gilinski Department of Obstetrics, Gynecology and Reproductive Science at Mount Sinai in New York City, called it a useful though not new summary. Reaching the wider audience of NEJM may raise awareness of newer fibroid therapies among general, nonspecialist ob.gyns., whose practices may concentrate largely on obstetrics, he added, “and the excellent illustrations clarify the treatment options.” In his view, broader awareness may increase much-needed funding for this neglected area of research.
Among the paper’s recommendations:
Diagnosis
Pelvic ultrasonography is the most cost-effective imaging method, providing information on size, location, and number of fibroids and ruling out adnexal masses. It is limited, however, by less-accurate resolution if the uterine volume is greater than 375 mL or if fibroids number more than four.
Medical Alternatives to Hysterectomy
Early diagnosis and first-line medical therapies are recommended.
Contraceptive hormones to control heavy menstrual bleeding are the first step in most algorithms for treating fibroid-related bleeding, despite low-quality evidence.
Nonsteroidal anti-inflammatory agents and tranexamic acid during menstruation also limit heavy menses but have more evidence of efficacy for idiopathic heavy menses.
Gonadotropin-releasing hormone (GnRH) agonists in depot form are approved for short-term preoperative therapy. While they cause amenorrhea in nearly 90% of patients and reduce uterine volume by 30%-60%, they have a high incidence of hypogonadal symptoms, including bone loss and hot flushes. They also cause a “steroidal flare” when the stored gonadotropins are released and cause subsequent heavy menstrual bleeding with the rapid decrease in estrogen levels.
Oral GnRH antagonist combinations are a major therapeutic advance, pairing a GnRH antagonist (such as elagolix or relugolix, which rapidly inhibit ovarian steroidogenesis) with estradiol and progestin at doses equivalent to systemic levels in the early follicular phase of the menstrual cycle.
In clinical trials these combinations decreased heavy menstrual bleeding by 50%-75%, pain by 40%-50%, and bulk-related symptoms through a 10% decrease in uterine volume. Side effects are few, with hot flushes, headaches, and nausea occurring in fewer than 20% of participants.
Smaller fibroids in the submucosal to intramural spaces can be treated transcervically, while larger lesions of any type or smaller subserosa fibroids are treated abdominally.
Uterine-artery embolization uses minimally invasive radiologically guided catheterization to release embolic particles directly into both uterine arteries. This process causes ischemic infarction of the fibroids and decreases bleeding, pain, and bulk-related symptoms.
Other procedures shrink individual fibroids with energy that creates coagulative necrosis. These include focused ultrasound ablation (with MRI or ultrasound guidance) and radiofrequency ablation (with laparoscopic or transcervical ultrasound guidance).
Unlike uterine-artery embolization, which treats all fibroids concurrently, these therapies require individual targeting of fibroids.
Radiofrequency ablation can be done concurrently with other surgical therapies, such as laparoscopic excision of endometriosis or hysteroscopic myomectomy.
Myomectomy, or the surgical removal of fibroids, is most often used in persons actively seeking pregnancy or having very large fibroids in whom shrinkage would be inadequate. Most guidelines recommend surgical excision rather than shrinking procedures to optimize fertility. However, myomectomy often commits patients to future cesarean section, which increases pregnancy-related morbidity.
Although myomectomy is seen as superior to uterine-artery embolization for improving quality of life, both approaches provide substantial symptom relief.
Recurrence
Incidence of recurring fibroids is high, with, for example, new fibroids developing in approximately 50% of persons within 5 years of myomectomy.
Earlier this year, a large cohort study reported that myomectomy was best for avoiding reintervention after surgical leiomyoma management.
Reintervention rates vary according to procedure, patient age, disease extent, and symptoms and can be as high as 33% up to 5 years after treatment, with lower percentages seen among persons older than 45 years of age.
Hysterectomy
Minimally invasive hysterectomy is recommended. Drawbacks to hysterectomy include perioperative risk and concomitant oophorectomy, which was common until the early 2000s when large cohort studies showed elevated risks of death, cardiovascular disease, dementia, and other illnesses compared with hysterectomy plus ovarian conservation. Oophorectomy but not hysterectomy rates have since decreased.
Still needing study, according to Laughlin-Tommaso are the underlying reasons for health disparities in fibroids, especially among Black and Latina individuals. “Some studies have found associations with vitamin D deficiency and with stress and racism,” she said.
Looking ahead, the authors stressed the need for a fibroid risk-prediction model, a staging system, and large randomized trials of treatment effectiveness. Also needed are methods for primary and secondary prevention. “Earlier screening and medical treatment in primary care settings could potentially minimize morbidity and the incidence of unnecessary hysterectomies, and primary care–based screening trials are warranted,” they wrote.
In addition to procedural illustrations the practice document includes a vignette of a 33-year-old never-pregnant Black woman (but desiring motherhood) with heavy menstrual bleeding, abdominal bloating, and non–iron deficiency anemia. Evaluation for thalassemia and sickle cell anemia is negative, but ultrasonography reveals an enlarged uterus with multiple fibroids and normal ovaries.
In line with the clinical review, the authors prescribe oral GnRH agonist combination therapy, plus iron and multivitamin supplementation, and recommend annual reassessment — earlier if pregnancy is desired or if symptoms escalate. Since the patient prioritizes fertility, hysterectomy would be appropriate only if she had biopsy-proven cancer.
The authors received no external funding for this practice paper, but both have funding from the National Institutes of Health for fibroid research. Laughlin-Tommaso reported royalties from UpToDate. Stewart reported research support from the Agency for Healthcare Research and Quality, and speaking, data-monitoring, and consulting fees for various private companies, including AbbVie, Anylam Pharmaceuticals, ASKA Pharma, and Myovant Sciences. She holds a patent on treatment for abnormal uterine bleeding and has been involved in CME for various medical educational agencies. Hurtado and Ascher-Walsh had no relevant conflicts of interest to declare.
A version of this article first appeared on Medscape.com.
FROM NEW ENGLAND JOURNAL OF MEDICINE
GLP-1 RAs Safe in the Perioperative Period: New Guidance
The new guidance, contrasting with earlier recommendations, says these incrementally used agents can be taken up until the day of surgery, but patients are advised to follow a liquid diet for 24 hours before the procedure. The decision to proceed with endoscopy and other procedures should be based on shared decision-making with the patient and interdisciplinary care teams in conjunction with minimization of the aspiration risk from delayed gastric emptying, the guidance stresses.
The five endorsing organizations are the American Society for Metabolic and Bariatric Surgery, American Society of Anesthesiologists (ASA), American Gastroenterological Association, International Society of Perioperative Care of Patients with Obesity, and Society of American Gastrointestinal and Endoscopic Surgeons. The societies emphasize that the statement is intended as guidance only and is not an evidence-based formal guideline.
GLP-1 RAs are known to delay gastric emptying, raising concerns about regurgitation, aspiration, and airway compromise during anesthesia. Rare serious adverse events have also been observed, prompting the ASA in 2023 to recommend holding these agents for 1 week for the injectable form and 1 day for the oral form before all procedures requiring anesthesia.
That abundance of caution, however, had negative impacts of its own. “This guidance has led to cancellations and postponements of many endoscopic and surgical procedures or required patients to undergo general anesthesia who may otherwise have had their procedures performed under moderate sedation,” said guidance coauthor Allison R. Schulman, MD, MPH, an associate professor of medicine and surgery and chief of endoscopy at the University of Michigan in Ann Arbor. “Nearly all institutions have been forced to revise preprocedural protocols, despite a lack of high-level evidence to suggest that these adjustments are necessary.”
“Studies have yielded mixed results as to whether patients on GLP-1s are at increased risk of these events, and the limited data available are inconsistent,” Schulman said. “As a result, there are inconsistencies in the recommendations from various societies leading to growing uncertainty with proceduralists on how to provide safe, effective, and timely procedural care to patients taking GLP-1 RAs.”
The new joint-society guidance may alleviate some of the uncertainty. Among the recommendations:
- Continuing GLP-1 RAs in the perioperative period should be based on shared decision-making with the patient and all care teams balancing the metabolic need for the GLP-1 RA with individual patient risk.
- Certain variables may increase the risk for delayed gastric emptying and aspiration with the periprocedural use of GLP-1 RAs: escalation phase — This phase vs the maintenance phase is associated with a higher risk for delayed gastric emptying; higher dose — the higher the dose, the greater the risk for gastrointestinal (GI) side effects; weekly dosing — GI side effects are more common with weekly vs daily formulations; presence of GI symptoms — nausea, vomiting, abdominal pain, dyspepsia, and constipation may suggest delayed gastric emptying; and medical problems beyond GLP-1 RA indications with GI effects — assess for such conditions as bowel dysmotility, gastroparesis, and Parkinson’s disease.
- Risk factors should be assessed in advance to allow sufficient time to adjust preoperative care, including diet modification and medication bridging if GLP-1 RA cessation is deemed advisable.
- If retained gastric contents are a concern on the day of a procedure, point-of-care gastric ultrasound could be used to assess aspiration risk, resources permitting.
- The aspiration risk from delayed gastric emptying should be minimized by preoperative diet modification and/or altering the anesthesia plan to consider rapid sequence induction of general anesthesia for tracheal intubation. A 24-hour preoperative liquid diet, as before colonoscopy and bariatric surgery, can be utilized when delayed gastric emptying is a concern.
- When concern about retained gastric contents exists on procedure day, providers should engage patients in a shared decision-making model and consider the benefits and risks of rapid-sequence induction of general anesthesia for tracheal intubation to minimize aspiration risk vs procedure cancellation.
“Safe continuation of surgery and gastrointestinal endoscopy, and prevention of procedure cancellation, for patients on GLP-1 RAs can be prioritized following the recommendations above, as would occur for other patient populations with gastroparesis,” the guidance panel wrote.
Commenting on the statement but not involved in it, David B. Purow, MD, managing director of the Digestive Health Center at Northwell Health/Huntington Hospital in Huntington, New York, said the recommendations will encourage clinicians to be more discerning about actual risk in individual cases rather than follow the previous blanket recommendation to stop these agents before procedures requiring sedation.
While GLP-1 RAs were prescribed for the relatively small number of patients with diabetes, he said, the risk was not apparent but became clearer with the widespread use of these agents for weight loss — often unregulated and undisclosed to care providers.
“The pendulum shifted too far the other way, and now it’s shifted back,” he said in an interview. “The new guidance is great because now we can be more thoughtful about managing individual patients.” He cited, for instance, the recommendations on the greater risk in patients in the dose escalation phase or on higher doses, and the risk-reducing measure of a liquid diet for 24 hours before surgery.
His center is already using point-of-care ultrasound and recently had a case in which a patient who forgot and took his GLP-1 RA before a scheduled procedure was found on ultrasound to have a full stomach. “In some cases, these drugs can cause an almost gastroparesis level of delayed emptying,” Purow said.
Purow thinks this early guidance will probably progress to firm guidelines within a year. Schulman is more cautious. “Our understanding of this complex topic is increasing rapidly, and ongoing clinical research will ultimately lead to evidence-based guidelines in this changing landscape,” she said.
This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Schulman is a consultant for Apollo Endosurgery, Boston Scientific, Olympus, Microtech, and Fractyl. Purow had no competing interests to declare.
A version of this article first appeared on Medscape.com.
The new guidance, contrasting with earlier recommendations, says these incrementally used agents can be taken up until the day of surgery, but patients are advised to follow a liquid diet for 24 hours before the procedure. The decision to proceed with endoscopy and other procedures should be based on shared decision-making with the patient and interdisciplinary care teams in conjunction with minimization of the aspiration risk from delayed gastric emptying, the guidance stresses.
The five endorsing organizations are the American Society for Metabolic and Bariatric Surgery, American Society of Anesthesiologists (ASA), American Gastroenterological Association, International Society of Perioperative Care of Patients with Obesity, and Society of American Gastrointestinal and Endoscopic Surgeons. The societies emphasize that the statement is intended as guidance only and is not an evidence-based formal guideline.
GLP-1 RAs are known to delay gastric emptying, raising concerns about regurgitation, aspiration, and airway compromise during anesthesia. Rare serious adverse events have also been observed, prompting the ASA in 2023 to recommend holding these agents for 1 week for the injectable form and 1 day for the oral form before all procedures requiring anesthesia.
That abundance of caution, however, had negative impacts of its own. “This guidance has led to cancellations and postponements of many endoscopic and surgical procedures or required patients to undergo general anesthesia who may otherwise have had their procedures performed under moderate sedation,” said guidance coauthor Allison R. Schulman, MD, MPH, an associate professor of medicine and surgery and chief of endoscopy at the University of Michigan in Ann Arbor. “Nearly all institutions have been forced to revise preprocedural protocols, despite a lack of high-level evidence to suggest that these adjustments are necessary.”
“Studies have yielded mixed results as to whether patients on GLP-1s are at increased risk of these events, and the limited data available are inconsistent,” Schulman said. “As a result, there are inconsistencies in the recommendations from various societies leading to growing uncertainty with proceduralists on how to provide safe, effective, and timely procedural care to patients taking GLP-1 RAs.”
The new joint-society guidance may alleviate some of the uncertainty. Among the recommendations:
- Continuing GLP-1 RAs in the perioperative period should be based on shared decision-making with the patient and all care teams balancing the metabolic need for the GLP-1 RA with individual patient risk.
- Certain variables may increase the risk for delayed gastric emptying and aspiration with the periprocedural use of GLP-1 RAs: escalation phase — This phase vs the maintenance phase is associated with a higher risk for delayed gastric emptying; higher dose — the higher the dose, the greater the risk for gastrointestinal (GI) side effects; weekly dosing — GI side effects are more common with weekly vs daily formulations; presence of GI symptoms — nausea, vomiting, abdominal pain, dyspepsia, and constipation may suggest delayed gastric emptying; and medical problems beyond GLP-1 RA indications with GI effects — assess for such conditions as bowel dysmotility, gastroparesis, and Parkinson’s disease.
- Risk factors should be assessed in advance to allow sufficient time to adjust preoperative care, including diet modification and medication bridging if GLP-1 RA cessation is deemed advisable.
- If retained gastric contents are a concern on the day of a procedure, point-of-care gastric ultrasound could be used to assess aspiration risk, resources permitting.
- The aspiration risk from delayed gastric emptying should be minimized by preoperative diet modification and/or altering the anesthesia plan to consider rapid sequence induction of general anesthesia for tracheal intubation. A 24-hour preoperative liquid diet, as before colonoscopy and bariatric surgery, can be utilized when delayed gastric emptying is a concern.
- When concern about retained gastric contents exists on procedure day, providers should engage patients in a shared decision-making model and consider the benefits and risks of rapid-sequence induction of general anesthesia for tracheal intubation to minimize aspiration risk vs procedure cancellation.
“Safe continuation of surgery and gastrointestinal endoscopy, and prevention of procedure cancellation, for patients on GLP-1 RAs can be prioritized following the recommendations above, as would occur for other patient populations with gastroparesis,” the guidance panel wrote.
Commenting on the statement but not involved in it, David B. Purow, MD, managing director of the Digestive Health Center at Northwell Health/Huntington Hospital in Huntington, New York, said the recommendations will encourage clinicians to be more discerning about actual risk in individual cases rather than follow the previous blanket recommendation to stop these agents before procedures requiring sedation.
While GLP-1 RAs were prescribed for the relatively small number of patients with diabetes, he said, the risk was not apparent but became clearer with the widespread use of these agents for weight loss — often unregulated and undisclosed to care providers.
“The pendulum shifted too far the other way, and now it’s shifted back,” he said in an interview. “The new guidance is great because now we can be more thoughtful about managing individual patients.” He cited, for instance, the recommendations on the greater risk in patients in the dose escalation phase or on higher doses, and the risk-reducing measure of a liquid diet for 24 hours before surgery.
His center is already using point-of-care ultrasound and recently had a case in which a patient who forgot and took his GLP-1 RA before a scheduled procedure was found on ultrasound to have a full stomach. “In some cases, these drugs can cause an almost gastroparesis level of delayed emptying,” Purow said.
Purow thinks this early guidance will probably progress to firm guidelines within a year. Schulman is more cautious. “Our understanding of this complex topic is increasing rapidly, and ongoing clinical research will ultimately lead to evidence-based guidelines in this changing landscape,” she said.
This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Schulman is a consultant for Apollo Endosurgery, Boston Scientific, Olympus, Microtech, and Fractyl. Purow had no competing interests to declare.
A version of this article first appeared on Medscape.com.
The new guidance, contrasting with earlier recommendations, says these incrementally used agents can be taken up until the day of surgery, but patients are advised to follow a liquid diet for 24 hours before the procedure. The decision to proceed with endoscopy and other procedures should be based on shared decision-making with the patient and interdisciplinary care teams in conjunction with minimization of the aspiration risk from delayed gastric emptying, the guidance stresses.
The five endorsing organizations are the American Society for Metabolic and Bariatric Surgery, American Society of Anesthesiologists (ASA), American Gastroenterological Association, International Society of Perioperative Care of Patients with Obesity, and Society of American Gastrointestinal and Endoscopic Surgeons. The societies emphasize that the statement is intended as guidance only and is not an evidence-based formal guideline.
GLP-1 RAs are known to delay gastric emptying, raising concerns about regurgitation, aspiration, and airway compromise during anesthesia. Rare serious adverse events have also been observed, prompting the ASA in 2023 to recommend holding these agents for 1 week for the injectable form and 1 day for the oral form before all procedures requiring anesthesia.
That abundance of caution, however, had negative impacts of its own. “This guidance has led to cancellations and postponements of many endoscopic and surgical procedures or required patients to undergo general anesthesia who may otherwise have had their procedures performed under moderate sedation,” said guidance coauthor Allison R. Schulman, MD, MPH, an associate professor of medicine and surgery and chief of endoscopy at the University of Michigan in Ann Arbor. “Nearly all institutions have been forced to revise preprocedural protocols, despite a lack of high-level evidence to suggest that these adjustments are necessary.”
“Studies have yielded mixed results as to whether patients on GLP-1s are at increased risk of these events, and the limited data available are inconsistent,” Schulman said. “As a result, there are inconsistencies in the recommendations from various societies leading to growing uncertainty with proceduralists on how to provide safe, effective, and timely procedural care to patients taking GLP-1 RAs.”
The new joint-society guidance may alleviate some of the uncertainty. Among the recommendations:
- Continuing GLP-1 RAs in the perioperative period should be based on shared decision-making with the patient and all care teams balancing the metabolic need for the GLP-1 RA with individual patient risk.
- Certain variables may increase the risk for delayed gastric emptying and aspiration with the periprocedural use of GLP-1 RAs: escalation phase — This phase vs the maintenance phase is associated with a higher risk for delayed gastric emptying; higher dose — the higher the dose, the greater the risk for gastrointestinal (GI) side effects; weekly dosing — GI side effects are more common with weekly vs daily formulations; presence of GI symptoms — nausea, vomiting, abdominal pain, dyspepsia, and constipation may suggest delayed gastric emptying; and medical problems beyond GLP-1 RA indications with GI effects — assess for such conditions as bowel dysmotility, gastroparesis, and Parkinson’s disease.
- Risk factors should be assessed in advance to allow sufficient time to adjust preoperative care, including diet modification and medication bridging if GLP-1 RA cessation is deemed advisable.
- If retained gastric contents are a concern on the day of a procedure, point-of-care gastric ultrasound could be used to assess aspiration risk, resources permitting.
- The aspiration risk from delayed gastric emptying should be minimized by preoperative diet modification and/or altering the anesthesia plan to consider rapid sequence induction of general anesthesia for tracheal intubation. A 24-hour preoperative liquid diet, as before colonoscopy and bariatric surgery, can be utilized when delayed gastric emptying is a concern.
- When concern about retained gastric contents exists on procedure day, providers should engage patients in a shared decision-making model and consider the benefits and risks of rapid-sequence induction of general anesthesia for tracheal intubation to minimize aspiration risk vs procedure cancellation.
“Safe continuation of surgery and gastrointestinal endoscopy, and prevention of procedure cancellation, for patients on GLP-1 RAs can be prioritized following the recommendations above, as would occur for other patient populations with gastroparesis,” the guidance panel wrote.
Commenting on the statement but not involved in it, David B. Purow, MD, managing director of the Digestive Health Center at Northwell Health/Huntington Hospital in Huntington, New York, said the recommendations will encourage clinicians to be more discerning about actual risk in individual cases rather than follow the previous blanket recommendation to stop these agents before procedures requiring sedation.
While GLP-1 RAs were prescribed for the relatively small number of patients with diabetes, he said, the risk was not apparent but became clearer with the widespread use of these agents for weight loss — often unregulated and undisclosed to care providers.
“The pendulum shifted too far the other way, and now it’s shifted back,” he said in an interview. “The new guidance is great because now we can be more thoughtful about managing individual patients.” He cited, for instance, the recommendations on the greater risk in patients in the dose escalation phase or on higher doses, and the risk-reducing measure of a liquid diet for 24 hours before surgery.
His center is already using point-of-care ultrasound and recently had a case in which a patient who forgot and took his GLP-1 RA before a scheduled procedure was found on ultrasound to have a full stomach. “In some cases, these drugs can cause an almost gastroparesis level of delayed emptying,” Purow said.
Purow thinks this early guidance will probably progress to firm guidelines within a year. Schulman is more cautious. “Our understanding of this complex topic is increasing rapidly, and ongoing clinical research will ultimately lead to evidence-based guidelines in this changing landscape,” she said.
This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Schulman is a consultant for Apollo Endosurgery, Boston Scientific, Olympus, Microtech, and Fractyl. Purow had no competing interests to declare.
A version of this article first appeared on Medscape.com.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Gardasil 9 at 10 Years: Vaccine Protects Against Multiple Cancers
Vaccination against human papilloma virus (HPV), a group of more than 200 viruses infecting at least 50% of sexually active people over their lifetimes, has proved more than 90% effective for preventing several diseases caused by high-risk HPV types.
Gardasil 4: 2006
It started in 2006 with the approval of Human Papillomavirus Quadrivalent, types 6, 11, 16, and 18 (Gardasil 4). Merck’s vaccine began to lower rates of cervical cancer, a major global killer of women.
“It’s fair to say the vaccine has been an American and a global public health success story in reducing rates of cervical cancer,” Paula M. Cuccaro, PhD, assistant professor of health promotion and behavioral sciences at University of Texas School of Public Health, Houston, said in an interview.
How does a common virus trigger such a lethal gynecologic malignancy? “It knocks out two important cancer suppressor genes in cells,” explained Christina Annunziata,MD, PhD, a medical oncologist and senior vice president of extramural discovery science for the American Cancer Society. HPV oncoproteins are encoded by the E6 and E7 genes. As in other DNA tumor viruses, the E6 and E7 proteins functionally inactivate the tumor suppressor proteins p53 and pRB, respectively.
US Prevalence
Despite screening and vaccination, cervical cancer is still very much around. This year, 13,820 new cases of invasive cervical cancer will be diagnosed in the United States, and approximately 4360 women will die of it, according to the American Cancer Society. Even before the advent of Gardasil 4, incidence rates had already decreased by more than half from the mid-1970s to the mid-2000s, thanks largely to Pap smear screening programs for treatable premalignant lesions. “The US rate had dropped to about 20 per 100,000 women even before Gardasil 4,” said Annunziata. “After the introduction of the first vaccine, it decreased to 7 per 100,000, a decrease of about 30%, but it remains plateaued now at about the same level.”
Although the past decade has seen rates generally stabilize, there have been some changes in different age groups. In women ages 30-44, rates increased 1.7% each year from 2012 to 2019, while rates declined 11% each year for women ages 20-24— probably reflecting the impact of the first wave of prevention from Gardasil 4.
In one 2021 population-based study of US cancer registry data from 1999 to 2017, rates of both cervical squamous cell carcinoma and adenocarcinoma dropped. The largest declines occurred in females 15-20 years old, the age group most likely to be vaccinated against HPV but not typically screened, suggesting a vaccine-related effect.
Gardasil 9: 2014
With the 2014 approval of the vaccine’s second iteration, Gardasil 9, which replaced Gardasil 4 and targeted 9 HPV strains, immunization has taken broader aim. The strains covered by Gardasil 9 protect against oropharyngeal and other head and neck cancers — as well as penile, anal, vulvar, and vaginal malignancies and premalignancies, and genital warts in both sexes ages 9-45.
It may be years, however, before the impact of the newer polyvalent formulation is felt. “While the first vaccine has been successful against the prevalent strains of HPV linked to cervical cancer, it’s a little early to call it for the newer vaccine since oropharyngeal cancers tend to develop later in older men,” Cuccaro said. “But the types of HPV linked to mouth and throat cancers and covered by the newer vaccines are much less prevalent in those who are vaccinated. The strains not covered in the vaccine you see are equally present in the vaccinated and non-vaccinated.”
Angela L. Myers, MD, MPH, division director of infectious diseases and medical director of the Center for Wellbeing at Children’s Mercy in Kansas City, Missouri, added, “Unlike for cervical cancer, there are no screening programs for oropharyngeal lesions, so you have to wait to see rates until actual cancer develops.”
A 2023 review reported that HPV vaccination reduced levels of oropharyngeal HPV positivity in men, strengthening the case for pangender immunization.
And in a recent phase 3 doubled-blind trial, GARDASIL 9 reduced the incidence of anogenital persistent infection caused by nine types of HPV compared with a placebo.
Increasing Uptake
The current public health aim is to have 80% of young people in the targeted age group vaccinated with two doses. Today, uptake among those 9-26 years old stands at about 78% of girls and 75% of boys for the first dose, said Annunziata. “But it’s only about 61% for the two doses in the current series, and we want to improve that.”
Some parents may still harbor fears that immunizing teens and tweens — both the American Academy of Pediatrics and the American Cancer Society recommend immunization at age 9 — will open the door to precocious sexual activity.
“But overall, uptake in tweens and young teens has increased because the messaging has changed,” said Myers, with the rationale now focusing on cancer prevention not sexual-infection prophylaxis. “This is similar to the hepatitis B vaccine, which used to be given to young adults and is now given to newborns to prevent cancer.”
Cuccaro added that a proactive presentation by healthcare professionals has a significant effect on vaccine uptake and increases the odds of vaccination ninefold. “Providers should take a presumptive approach and avoid just offering the vaccine as an option. It should be included with regular childhood vaccinations,” she said. “And the advantage of starting early at age 9 is that you can spread the doses out across other regular childhood vaccinations, whereas if you start at age 11, you need to add the HPV vaccine to three other vaccines that are given at that time.”
After age 15, three doses are necessary. “Providers should stress to parents that it’s most effective when given before young people become sexually active and exposed to HPV,” Cuccaro said. And Myers stressed that despite the vaccine’s effectiveness, routine screening for cervical premalignancies is still important.
Despite increasing coverage, vaccination rates have some distance to go before the public health target of at least 80% uptake of the series in the targeted age group, Cuccaro cautioned.
On the global stage, barriers to immunization remain, but the World Health Organization has endorsed a campaign to eradicate cervical cancer through HPV vaccination. It has predicted that the 21st century may be the last to experience HPV-associated cancers, currently responsible for more than 300,000 annual deaths worldwide.
A Brief History of HPV Vaccines
- 1951. Cervical cancer patient Henrietta Lacks’ rapidly dividing cervical cells are collected by George Otto Gey at Johns Hopkins Hospital. They create the first immortal cell line (HeLa) used to study cancers and vaccines worldwide.
- 1976. Harald zur Hausen suggests that genital wart-associated HPV, not herpes simplex, is the probable cause of cervical cancer.
- 1983. HPV is confirmed as a cause of cancer.
- 1991. The first HPV vaccine is developed.
- 2002. Proof of principle and protective efficacy for the monovalent HPV 16 are shown.
- 2006. Merck’s Gardasil 4 (HPV 4) is FDA approved in girls ages 9-26 for protection against strains 6, 11, 16, and 18 — the cause of more than 70% of cervical cancer cases.
- 2009. Approval of Gardasil 4 is expanded to boys ages 9-26 for the prevention of genital warts.
- 2009. The FDA approves GlaxoSmithKline’s Cervarix (HPV 16 and 18) for girls and young women. The vaccine was withdrawn from the US market in 2016 following the success of Gardasil 9 but is used abroad for HPV cancer prevention.
- 2014. The 9-valent recombinant vaccine Gardasil 9 is FDA approved for protection against several low-risk, wart-causing HPV strains as well as the high-risk cancer strains targeted by HPV 4.
- 2018. The FDA expands approval to include females and males 27-45 years old.
- 2020. The FDA extends approval of Gardasil 9 to include prevention not only of cervical cancer but also, vaginal, vulvar, anal, oropharyngeal, and other head and neck cancers.
Annunziata, Cuccaro, and Myers had no competing interests to declare.
A version of this article appeared on Medscape.com.
Vaccination against human papilloma virus (HPV), a group of more than 200 viruses infecting at least 50% of sexually active people over their lifetimes, has proved more than 90% effective for preventing several diseases caused by high-risk HPV types.
Gardasil 4: 2006
It started in 2006 with the approval of Human Papillomavirus Quadrivalent, types 6, 11, 16, and 18 (Gardasil 4). Merck’s vaccine began to lower rates of cervical cancer, a major global killer of women.
“It’s fair to say the vaccine has been an American and a global public health success story in reducing rates of cervical cancer,” Paula M. Cuccaro, PhD, assistant professor of health promotion and behavioral sciences at University of Texas School of Public Health, Houston, said in an interview.
How does a common virus trigger such a lethal gynecologic malignancy? “It knocks out two important cancer suppressor genes in cells,” explained Christina Annunziata,MD, PhD, a medical oncologist and senior vice president of extramural discovery science for the American Cancer Society. HPV oncoproteins are encoded by the E6 and E7 genes. As in other DNA tumor viruses, the E6 and E7 proteins functionally inactivate the tumor suppressor proteins p53 and pRB, respectively.
US Prevalence
Despite screening and vaccination, cervical cancer is still very much around. This year, 13,820 new cases of invasive cervical cancer will be diagnosed in the United States, and approximately 4360 women will die of it, according to the American Cancer Society. Even before the advent of Gardasil 4, incidence rates had already decreased by more than half from the mid-1970s to the mid-2000s, thanks largely to Pap smear screening programs for treatable premalignant lesions. “The US rate had dropped to about 20 per 100,000 women even before Gardasil 4,” said Annunziata. “After the introduction of the first vaccine, it decreased to 7 per 100,000, a decrease of about 30%, but it remains plateaued now at about the same level.”
Although the past decade has seen rates generally stabilize, there have been some changes in different age groups. In women ages 30-44, rates increased 1.7% each year from 2012 to 2019, while rates declined 11% each year for women ages 20-24— probably reflecting the impact of the first wave of prevention from Gardasil 4.
In one 2021 population-based study of US cancer registry data from 1999 to 2017, rates of both cervical squamous cell carcinoma and adenocarcinoma dropped. The largest declines occurred in females 15-20 years old, the age group most likely to be vaccinated against HPV but not typically screened, suggesting a vaccine-related effect.
Gardasil 9: 2014
With the 2014 approval of the vaccine’s second iteration, Gardasil 9, which replaced Gardasil 4 and targeted 9 HPV strains, immunization has taken broader aim. The strains covered by Gardasil 9 protect against oropharyngeal and other head and neck cancers — as well as penile, anal, vulvar, and vaginal malignancies and premalignancies, and genital warts in both sexes ages 9-45.
It may be years, however, before the impact of the newer polyvalent formulation is felt. “While the first vaccine has been successful against the prevalent strains of HPV linked to cervical cancer, it’s a little early to call it for the newer vaccine since oropharyngeal cancers tend to develop later in older men,” Cuccaro said. “But the types of HPV linked to mouth and throat cancers and covered by the newer vaccines are much less prevalent in those who are vaccinated. The strains not covered in the vaccine you see are equally present in the vaccinated and non-vaccinated.”
Angela L. Myers, MD, MPH, division director of infectious diseases and medical director of the Center for Wellbeing at Children’s Mercy in Kansas City, Missouri, added, “Unlike for cervical cancer, there are no screening programs for oropharyngeal lesions, so you have to wait to see rates until actual cancer develops.”
A 2023 review reported that HPV vaccination reduced levels of oropharyngeal HPV positivity in men, strengthening the case for pangender immunization.
And in a recent phase 3 doubled-blind trial, GARDASIL 9 reduced the incidence of anogenital persistent infection caused by nine types of HPV compared with a placebo.
Increasing Uptake
The current public health aim is to have 80% of young people in the targeted age group vaccinated with two doses. Today, uptake among those 9-26 years old stands at about 78% of girls and 75% of boys for the first dose, said Annunziata. “But it’s only about 61% for the two doses in the current series, and we want to improve that.”
Some parents may still harbor fears that immunizing teens and tweens — both the American Academy of Pediatrics and the American Cancer Society recommend immunization at age 9 — will open the door to precocious sexual activity.
“But overall, uptake in tweens and young teens has increased because the messaging has changed,” said Myers, with the rationale now focusing on cancer prevention not sexual-infection prophylaxis. “This is similar to the hepatitis B vaccine, which used to be given to young adults and is now given to newborns to prevent cancer.”
Cuccaro added that a proactive presentation by healthcare professionals has a significant effect on vaccine uptake and increases the odds of vaccination ninefold. “Providers should take a presumptive approach and avoid just offering the vaccine as an option. It should be included with regular childhood vaccinations,” she said. “And the advantage of starting early at age 9 is that you can spread the doses out across other regular childhood vaccinations, whereas if you start at age 11, you need to add the HPV vaccine to three other vaccines that are given at that time.”
After age 15, three doses are necessary. “Providers should stress to parents that it’s most effective when given before young people become sexually active and exposed to HPV,” Cuccaro said. And Myers stressed that despite the vaccine’s effectiveness, routine screening for cervical premalignancies is still important.
Despite increasing coverage, vaccination rates have some distance to go before the public health target of at least 80% uptake of the series in the targeted age group, Cuccaro cautioned.
On the global stage, barriers to immunization remain, but the World Health Organization has endorsed a campaign to eradicate cervical cancer through HPV vaccination. It has predicted that the 21st century may be the last to experience HPV-associated cancers, currently responsible for more than 300,000 annual deaths worldwide.
A Brief History of HPV Vaccines
- 1951. Cervical cancer patient Henrietta Lacks’ rapidly dividing cervical cells are collected by George Otto Gey at Johns Hopkins Hospital. They create the first immortal cell line (HeLa) used to study cancers and vaccines worldwide.
- 1976. Harald zur Hausen suggests that genital wart-associated HPV, not herpes simplex, is the probable cause of cervical cancer.
- 1983. HPV is confirmed as a cause of cancer.
- 1991. The first HPV vaccine is developed.
- 2002. Proof of principle and protective efficacy for the monovalent HPV 16 are shown.
- 2006. Merck’s Gardasil 4 (HPV 4) is FDA approved in girls ages 9-26 for protection against strains 6, 11, 16, and 18 — the cause of more than 70% of cervical cancer cases.
- 2009. Approval of Gardasil 4 is expanded to boys ages 9-26 for the prevention of genital warts.
- 2009. The FDA approves GlaxoSmithKline’s Cervarix (HPV 16 and 18) for girls and young women. The vaccine was withdrawn from the US market in 2016 following the success of Gardasil 9 but is used abroad for HPV cancer prevention.
- 2014. The 9-valent recombinant vaccine Gardasil 9 is FDA approved for protection against several low-risk, wart-causing HPV strains as well as the high-risk cancer strains targeted by HPV 4.
- 2018. The FDA expands approval to include females and males 27-45 years old.
- 2020. The FDA extends approval of Gardasil 9 to include prevention not only of cervical cancer but also, vaginal, vulvar, anal, oropharyngeal, and other head and neck cancers.
Annunziata, Cuccaro, and Myers had no competing interests to declare.
A version of this article appeared on Medscape.com.
Vaccination against human papilloma virus (HPV), a group of more than 200 viruses infecting at least 50% of sexually active people over their lifetimes, has proved more than 90% effective for preventing several diseases caused by high-risk HPV types.
Gardasil 4: 2006
It started in 2006 with the approval of Human Papillomavirus Quadrivalent, types 6, 11, 16, and 18 (Gardasil 4). Merck’s vaccine began to lower rates of cervical cancer, a major global killer of women.
“It’s fair to say the vaccine has been an American and a global public health success story in reducing rates of cervical cancer,” Paula M. Cuccaro, PhD, assistant professor of health promotion and behavioral sciences at University of Texas School of Public Health, Houston, said in an interview.
How does a common virus trigger such a lethal gynecologic malignancy? “It knocks out two important cancer suppressor genes in cells,” explained Christina Annunziata,MD, PhD, a medical oncologist and senior vice president of extramural discovery science for the American Cancer Society. HPV oncoproteins are encoded by the E6 and E7 genes. As in other DNA tumor viruses, the E6 and E7 proteins functionally inactivate the tumor suppressor proteins p53 and pRB, respectively.
US Prevalence
Despite screening and vaccination, cervical cancer is still very much around. This year, 13,820 new cases of invasive cervical cancer will be diagnosed in the United States, and approximately 4360 women will die of it, according to the American Cancer Society. Even before the advent of Gardasil 4, incidence rates had already decreased by more than half from the mid-1970s to the mid-2000s, thanks largely to Pap smear screening programs for treatable premalignant lesions. “The US rate had dropped to about 20 per 100,000 women even before Gardasil 4,” said Annunziata. “After the introduction of the first vaccine, it decreased to 7 per 100,000, a decrease of about 30%, but it remains plateaued now at about the same level.”
Although the past decade has seen rates generally stabilize, there have been some changes in different age groups. In women ages 30-44, rates increased 1.7% each year from 2012 to 2019, while rates declined 11% each year for women ages 20-24— probably reflecting the impact of the first wave of prevention from Gardasil 4.
In one 2021 population-based study of US cancer registry data from 1999 to 2017, rates of both cervical squamous cell carcinoma and adenocarcinoma dropped. The largest declines occurred in females 15-20 years old, the age group most likely to be vaccinated against HPV but not typically screened, suggesting a vaccine-related effect.
Gardasil 9: 2014
With the 2014 approval of the vaccine’s second iteration, Gardasil 9, which replaced Gardasil 4 and targeted 9 HPV strains, immunization has taken broader aim. The strains covered by Gardasil 9 protect against oropharyngeal and other head and neck cancers — as well as penile, anal, vulvar, and vaginal malignancies and premalignancies, and genital warts in both sexes ages 9-45.
It may be years, however, before the impact of the newer polyvalent formulation is felt. “While the first vaccine has been successful against the prevalent strains of HPV linked to cervical cancer, it’s a little early to call it for the newer vaccine since oropharyngeal cancers tend to develop later in older men,” Cuccaro said. “But the types of HPV linked to mouth and throat cancers and covered by the newer vaccines are much less prevalent in those who are vaccinated. The strains not covered in the vaccine you see are equally present in the vaccinated and non-vaccinated.”
Angela L. Myers, MD, MPH, division director of infectious diseases and medical director of the Center for Wellbeing at Children’s Mercy in Kansas City, Missouri, added, “Unlike for cervical cancer, there are no screening programs for oropharyngeal lesions, so you have to wait to see rates until actual cancer develops.”
A 2023 review reported that HPV vaccination reduced levels of oropharyngeal HPV positivity in men, strengthening the case for pangender immunization.
And in a recent phase 3 doubled-blind trial, GARDASIL 9 reduced the incidence of anogenital persistent infection caused by nine types of HPV compared with a placebo.
Increasing Uptake
The current public health aim is to have 80% of young people in the targeted age group vaccinated with two doses. Today, uptake among those 9-26 years old stands at about 78% of girls and 75% of boys for the first dose, said Annunziata. “But it’s only about 61% for the two doses in the current series, and we want to improve that.”
Some parents may still harbor fears that immunizing teens and tweens — both the American Academy of Pediatrics and the American Cancer Society recommend immunization at age 9 — will open the door to precocious sexual activity.
“But overall, uptake in tweens and young teens has increased because the messaging has changed,” said Myers, with the rationale now focusing on cancer prevention not sexual-infection prophylaxis. “This is similar to the hepatitis B vaccine, which used to be given to young adults and is now given to newborns to prevent cancer.”
Cuccaro added that a proactive presentation by healthcare professionals has a significant effect on vaccine uptake and increases the odds of vaccination ninefold. “Providers should take a presumptive approach and avoid just offering the vaccine as an option. It should be included with regular childhood vaccinations,” she said. “And the advantage of starting early at age 9 is that you can spread the doses out across other regular childhood vaccinations, whereas if you start at age 11, you need to add the HPV vaccine to three other vaccines that are given at that time.”
After age 15, three doses are necessary. “Providers should stress to parents that it’s most effective when given before young people become sexually active and exposed to HPV,” Cuccaro said. And Myers stressed that despite the vaccine’s effectiveness, routine screening for cervical premalignancies is still important.
Despite increasing coverage, vaccination rates have some distance to go before the public health target of at least 80% uptake of the series in the targeted age group, Cuccaro cautioned.
On the global stage, barriers to immunization remain, but the World Health Organization has endorsed a campaign to eradicate cervical cancer through HPV vaccination. It has predicted that the 21st century may be the last to experience HPV-associated cancers, currently responsible for more than 300,000 annual deaths worldwide.
A Brief History of HPV Vaccines
- 1951. Cervical cancer patient Henrietta Lacks’ rapidly dividing cervical cells are collected by George Otto Gey at Johns Hopkins Hospital. They create the first immortal cell line (HeLa) used to study cancers and vaccines worldwide.
- 1976. Harald zur Hausen suggests that genital wart-associated HPV, not herpes simplex, is the probable cause of cervical cancer.
- 1983. HPV is confirmed as a cause of cancer.
- 1991. The first HPV vaccine is developed.
- 2002. Proof of principle and protective efficacy for the monovalent HPV 16 are shown.
- 2006. Merck’s Gardasil 4 (HPV 4) is FDA approved in girls ages 9-26 for protection against strains 6, 11, 16, and 18 — the cause of more than 70% of cervical cancer cases.
- 2009. Approval of Gardasil 4 is expanded to boys ages 9-26 for the prevention of genital warts.
- 2009. The FDA approves GlaxoSmithKline’s Cervarix (HPV 16 and 18) for girls and young women. The vaccine was withdrawn from the US market in 2016 following the success of Gardasil 9 but is used abroad for HPV cancer prevention.
- 2014. The 9-valent recombinant vaccine Gardasil 9 is FDA approved for protection against several low-risk, wart-causing HPV strains as well as the high-risk cancer strains targeted by HPV 4.
- 2018. The FDA expands approval to include females and males 27-45 years old.
- 2020. The FDA extends approval of Gardasil 9 to include prevention not only of cervical cancer but also, vaginal, vulvar, anal, oropharyngeal, and other head and neck cancers.
Annunziata, Cuccaro, and Myers had no competing interests to declare.
A version of this article appeared on Medscape.com.
Molecular Stool Testing Could Cut Post-Polypectomy Colonoscopies by 15%-41%
It might also reduce colonoscopies by an estimated 15%-41%.
The greatest reduction would likely be achieved by annual FIT-based surveillance, especially with FIT FOB-Gold at a threshold of at least 32 µg/g feces, according to findings from the Dutch MOCCAS study published in Gastroenterology.
In this cross-sectional observational study, the multitarget DNA test outperformed FIT for detecting advanced precursor lesions, especially serrated polyps. According to long-term-impact mathematical modeling, however, DNA-based surveillance would be more costly than colonoscopy surveillance, whereas FIT would save costs.
“With the worldwide implementation of FIT-based screening programs, following a positive test, many more people enter surveillance programs after polypectomy. This results in an increased pressure on the colonoscopy capacity and healthcare budgets,” lead author Beatriz Carvalho, PhD, a molecular biologist in the Department of Pathology of the Netherlands Cancer Institute in Amsterdam, said in an interview.
A noninvasive strategy could ease the surveillance burden on healthcare resources and be more palatable to patients. Post-polypectomy guidelines have already been relaxed to allow less intensive surveillance.
“Our working hypothesis was that although the sensitivity of a singular molecular test to detect CRC or advanced adenomas is lower than that of colonoscopy, repeating molecular stool testing would yield similar detection rates as colonoscopy-based surveillance. And our hypothesis was confirmed,” Carvalho said.
The results of the MOCCAS study align with those of other studies that found that FIT could be safely applied as a triage test in post-polypectomy surveillance and could safely extend the interval of surveillance colonoscopy. “But these studies did not include a long-term impact analysis,” she said. “The next step is to run a prospective interventional study to validate the MOCCAS findings.”
Offering an outsider’s perspective on the findings, Uri Ladabaum, MD, director of the Gastrointestinal Cancer Prevention Program and a professor of medicine at Stanford University School of Medicine in Palo Alto, California, said the real-world results on lesion detection and the multi-year-horizon modeling performed are provocative and point to the potential to base post-polypectomy surveillance on stool tests.
He cautioned, however, that the proposed paradigm requires the ability to deploy FIT-based surveillance with broad flexibility in relation to hemoglobin-detection thresholds and testing interval, depending on the specific FIT that is chosen, with the possibility these may differ by setting based on the characteristics of the population and the relevant epidemiology.
“Such flexibility may or may not be technically feasible in all settings — for instance, in the current US regulatory context, it would be challenging to implement FIT-based testing at newly adjusted detection thresholds,” he said.
Nevertheless, the study provides a strong rationale for a real-world study of FIT-based surveillance, he added. “The choice of specific FIT and detection threshold will be critical. Multiple rounds of FIT-based surveillance, that is, years of prospective surveillance, will be needed to constitute a properly designed comparison with surveillance colonoscopy.”
Study Details
The cross-sectional observational study included individuals aged 50-75 years who provided stool samples for the DNA test and two FITs. Test accuracy was calculated for all surveillance indications.
For the post-polypectomy indication only, which is the most common and associated with a relatively low CRC risk, the long-term impact of stool-based surveillance was evaluated with the Adenoma and Serrated Pathway to Colorectal Cancer model. Stool-based strategies were simulated to tune each test’s positivity threshold to obtain strategies that are at least as effective as colonoscopy surveillance.
A total of 3453 individuals had results for all stool tests and colonoscopy; among them, 2226 had previously undergone polypectomy, 1003 had a history of CRC, and 224 had a familial risk.
Areas under the receiver operating characteristic curve for advanced neoplasia were as follows:
- 0.72 (95% CI, 0.69-0.75) for the multitarget stool DNA test
- 0.61 (95% CI, 0.58-0.64) for the FIT OC-SENSOR
- 0.59 (95% CI, 0.56-0.61) for the FIT FOB-Gold
Stool-based surveillance was estimated to be at least as effective as colonoscopy surveillance and required 5.6 to 9.5 stool tests over a person’s lifetime. DNA-based surveillance was more costly than colonoscopy surveillance, whereas FIT-based surveillance saved costs.
“These findings provide a basis to embark on a prospective intervention study to assess the clinical utility of FIT as an alternative to colonoscopy surveillance in a post-polypectomy CRC surveillance population,” the authors wrote.
In the United States, Ladabaum said, it would likely be possible to find FIT-based strategies that closely approximate or match surveillance colonoscopy — “if we could deploy FIT with the required flexibility, for example, by adjusting the threshold and if the reference surveillance standard were somewhat relaxed compared with current guidelines.”
He worries, however, that if FIT for screening and FIT for surveillance were optimized at different hemoglobin detection thresholds, “there could be confusion and room for error in real-world clinical implementation.”
The authors called for research to increase understanding of the mechanisms underlying progression from adenomas to malignancy over time, which may yield better biomarkers to improve stool test accuracy.
This study was funded by the Alpe d’HuZes charity and the Dutch Cancer Society. Exact Sciences provided test equipment and performed multitarget stool DNA test analysis. Sentinel Diagnostics provided equipment and reagents.
Carvalho and Veerle M. H. Coupé, PhD, disclosed several patents pending and/or issued. Other coauthors disclosed multiple financial relationships with private companies, including Exact Sciences and Sentinel, for research support, travel, board membership, advisory or speaker fees, consulting, employment, stock ownership, or patents.
Ladabaum disclosed no competing interests relevant to his comments.
A version of this article appeared on Medscape.com.
It might also reduce colonoscopies by an estimated 15%-41%.
The greatest reduction would likely be achieved by annual FIT-based surveillance, especially with FIT FOB-Gold at a threshold of at least 32 µg/g feces, according to findings from the Dutch MOCCAS study published in Gastroenterology.
In this cross-sectional observational study, the multitarget DNA test outperformed FIT for detecting advanced precursor lesions, especially serrated polyps. According to long-term-impact mathematical modeling, however, DNA-based surveillance would be more costly than colonoscopy surveillance, whereas FIT would save costs.
“With the worldwide implementation of FIT-based screening programs, following a positive test, many more people enter surveillance programs after polypectomy. This results in an increased pressure on the colonoscopy capacity and healthcare budgets,” lead author Beatriz Carvalho, PhD, a molecular biologist in the Department of Pathology of the Netherlands Cancer Institute in Amsterdam, said in an interview.
A noninvasive strategy could ease the surveillance burden on healthcare resources and be more palatable to patients. Post-polypectomy guidelines have already been relaxed to allow less intensive surveillance.
“Our working hypothesis was that although the sensitivity of a singular molecular test to detect CRC or advanced adenomas is lower than that of colonoscopy, repeating molecular stool testing would yield similar detection rates as colonoscopy-based surveillance. And our hypothesis was confirmed,” Carvalho said.
The results of the MOCCAS study align with those of other studies that found that FIT could be safely applied as a triage test in post-polypectomy surveillance and could safely extend the interval of surveillance colonoscopy. “But these studies did not include a long-term impact analysis,” she said. “The next step is to run a prospective interventional study to validate the MOCCAS findings.”
Offering an outsider’s perspective on the findings, Uri Ladabaum, MD, director of the Gastrointestinal Cancer Prevention Program and a professor of medicine at Stanford University School of Medicine in Palo Alto, California, said the real-world results on lesion detection and the multi-year-horizon modeling performed are provocative and point to the potential to base post-polypectomy surveillance on stool tests.
He cautioned, however, that the proposed paradigm requires the ability to deploy FIT-based surveillance with broad flexibility in relation to hemoglobin-detection thresholds and testing interval, depending on the specific FIT that is chosen, with the possibility these may differ by setting based on the characteristics of the population and the relevant epidemiology.
“Such flexibility may or may not be technically feasible in all settings — for instance, in the current US regulatory context, it would be challenging to implement FIT-based testing at newly adjusted detection thresholds,” he said.
Nevertheless, the study provides a strong rationale for a real-world study of FIT-based surveillance, he added. “The choice of specific FIT and detection threshold will be critical. Multiple rounds of FIT-based surveillance, that is, years of prospective surveillance, will be needed to constitute a properly designed comparison with surveillance colonoscopy.”
Study Details
The cross-sectional observational study included individuals aged 50-75 years who provided stool samples for the DNA test and two FITs. Test accuracy was calculated for all surveillance indications.
For the post-polypectomy indication only, which is the most common and associated with a relatively low CRC risk, the long-term impact of stool-based surveillance was evaluated with the Adenoma and Serrated Pathway to Colorectal Cancer model. Stool-based strategies were simulated to tune each test’s positivity threshold to obtain strategies that are at least as effective as colonoscopy surveillance.
A total of 3453 individuals had results for all stool tests and colonoscopy; among them, 2226 had previously undergone polypectomy, 1003 had a history of CRC, and 224 had a familial risk.
Areas under the receiver operating characteristic curve for advanced neoplasia were as follows:
- 0.72 (95% CI, 0.69-0.75) for the multitarget stool DNA test
- 0.61 (95% CI, 0.58-0.64) for the FIT OC-SENSOR
- 0.59 (95% CI, 0.56-0.61) for the FIT FOB-Gold
Stool-based surveillance was estimated to be at least as effective as colonoscopy surveillance and required 5.6 to 9.5 stool tests over a person’s lifetime. DNA-based surveillance was more costly than colonoscopy surveillance, whereas FIT-based surveillance saved costs.
“These findings provide a basis to embark on a prospective intervention study to assess the clinical utility of FIT as an alternative to colonoscopy surveillance in a post-polypectomy CRC surveillance population,” the authors wrote.
In the United States, Ladabaum said, it would likely be possible to find FIT-based strategies that closely approximate or match surveillance colonoscopy — “if we could deploy FIT with the required flexibility, for example, by adjusting the threshold and if the reference surveillance standard were somewhat relaxed compared with current guidelines.”
He worries, however, that if FIT for screening and FIT for surveillance were optimized at different hemoglobin detection thresholds, “there could be confusion and room for error in real-world clinical implementation.”
The authors called for research to increase understanding of the mechanisms underlying progression from adenomas to malignancy over time, which may yield better biomarkers to improve stool test accuracy.
This study was funded by the Alpe d’HuZes charity and the Dutch Cancer Society. Exact Sciences provided test equipment and performed multitarget stool DNA test analysis. Sentinel Diagnostics provided equipment and reagents.
Carvalho and Veerle M. H. Coupé, PhD, disclosed several patents pending and/or issued. Other coauthors disclosed multiple financial relationships with private companies, including Exact Sciences and Sentinel, for research support, travel, board membership, advisory or speaker fees, consulting, employment, stock ownership, or patents.
Ladabaum disclosed no competing interests relevant to his comments.
A version of this article appeared on Medscape.com.
It might also reduce colonoscopies by an estimated 15%-41%.
The greatest reduction would likely be achieved by annual FIT-based surveillance, especially with FIT FOB-Gold at a threshold of at least 32 µg/g feces, according to findings from the Dutch MOCCAS study published in Gastroenterology.
In this cross-sectional observational study, the multitarget DNA test outperformed FIT for detecting advanced precursor lesions, especially serrated polyps. According to long-term-impact mathematical modeling, however, DNA-based surveillance would be more costly than colonoscopy surveillance, whereas FIT would save costs.
“With the worldwide implementation of FIT-based screening programs, following a positive test, many more people enter surveillance programs after polypectomy. This results in an increased pressure on the colonoscopy capacity and healthcare budgets,” lead author Beatriz Carvalho, PhD, a molecular biologist in the Department of Pathology of the Netherlands Cancer Institute in Amsterdam, said in an interview.
A noninvasive strategy could ease the surveillance burden on healthcare resources and be more palatable to patients. Post-polypectomy guidelines have already been relaxed to allow less intensive surveillance.
“Our working hypothesis was that although the sensitivity of a singular molecular test to detect CRC or advanced adenomas is lower than that of colonoscopy, repeating molecular stool testing would yield similar detection rates as colonoscopy-based surveillance. And our hypothesis was confirmed,” Carvalho said.
The results of the MOCCAS study align with those of other studies that found that FIT could be safely applied as a triage test in post-polypectomy surveillance and could safely extend the interval of surveillance colonoscopy. “But these studies did not include a long-term impact analysis,” she said. “The next step is to run a prospective interventional study to validate the MOCCAS findings.”
Offering an outsider’s perspective on the findings, Uri Ladabaum, MD, director of the Gastrointestinal Cancer Prevention Program and a professor of medicine at Stanford University School of Medicine in Palo Alto, California, said the real-world results on lesion detection and the multi-year-horizon modeling performed are provocative and point to the potential to base post-polypectomy surveillance on stool tests.
He cautioned, however, that the proposed paradigm requires the ability to deploy FIT-based surveillance with broad flexibility in relation to hemoglobin-detection thresholds and testing interval, depending on the specific FIT that is chosen, with the possibility these may differ by setting based on the characteristics of the population and the relevant epidemiology.
“Such flexibility may or may not be technically feasible in all settings — for instance, in the current US regulatory context, it would be challenging to implement FIT-based testing at newly adjusted detection thresholds,” he said.
Nevertheless, the study provides a strong rationale for a real-world study of FIT-based surveillance, he added. “The choice of specific FIT and detection threshold will be critical. Multiple rounds of FIT-based surveillance, that is, years of prospective surveillance, will be needed to constitute a properly designed comparison with surveillance colonoscopy.”
Study Details
The cross-sectional observational study included individuals aged 50-75 years who provided stool samples for the DNA test and two FITs. Test accuracy was calculated for all surveillance indications.
For the post-polypectomy indication only, which is the most common and associated with a relatively low CRC risk, the long-term impact of stool-based surveillance was evaluated with the Adenoma and Serrated Pathway to Colorectal Cancer model. Stool-based strategies were simulated to tune each test’s positivity threshold to obtain strategies that are at least as effective as colonoscopy surveillance.
A total of 3453 individuals had results for all stool tests and colonoscopy; among them, 2226 had previously undergone polypectomy, 1003 had a history of CRC, and 224 had a familial risk.
Areas under the receiver operating characteristic curve for advanced neoplasia were as follows:
- 0.72 (95% CI, 0.69-0.75) for the multitarget stool DNA test
- 0.61 (95% CI, 0.58-0.64) for the FIT OC-SENSOR
- 0.59 (95% CI, 0.56-0.61) for the FIT FOB-Gold
Stool-based surveillance was estimated to be at least as effective as colonoscopy surveillance and required 5.6 to 9.5 stool tests over a person’s lifetime. DNA-based surveillance was more costly than colonoscopy surveillance, whereas FIT-based surveillance saved costs.
“These findings provide a basis to embark on a prospective intervention study to assess the clinical utility of FIT as an alternative to colonoscopy surveillance in a post-polypectomy CRC surveillance population,” the authors wrote.
In the United States, Ladabaum said, it would likely be possible to find FIT-based strategies that closely approximate or match surveillance colonoscopy — “if we could deploy FIT with the required flexibility, for example, by adjusting the threshold and if the reference surveillance standard were somewhat relaxed compared with current guidelines.”
He worries, however, that if FIT for screening and FIT for surveillance were optimized at different hemoglobin detection thresholds, “there could be confusion and room for error in real-world clinical implementation.”
The authors called for research to increase understanding of the mechanisms underlying progression from adenomas to malignancy over time, which may yield better biomarkers to improve stool test accuracy.
This study was funded by the Alpe d’HuZes charity and the Dutch Cancer Society. Exact Sciences provided test equipment and performed multitarget stool DNA test analysis. Sentinel Diagnostics provided equipment and reagents.
Carvalho and Veerle M. H. Coupé, PhD, disclosed several patents pending and/or issued. Other coauthors disclosed multiple financial relationships with private companies, including Exact Sciences and Sentinel, for research support, travel, board membership, advisory or speaker fees, consulting, employment, stock ownership, or patents.
Ladabaum disclosed no competing interests relevant to his comments.
A version of this article appeared on Medscape.com.
FROM GASTROENTEROLOGY