Obesity

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Combined exposure to dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) is significantly associated with an increased risk for obesity in adults, with 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD) showing the greatest contribution.

METHODOLOGY:

• Recent evidence has shown that environmental contaminants, particularly dioxins and dioxin-like polychlorinated biphenyls, may be linked to an increased risk for obesity as endocrine-disrupting chemicals.
• Researchers evaluated the relationship between mixed exposure to nine types of dioxins and DL-PCBs and obesity or obesity indices in 852 adults using data from the National Health and Nutrition Examination Survey from 2003 to 2004.
• They chose nine chemicals for analysis: 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin (OCDD); 3,3’,4,4’,5-pentachlorodibenzofuran (PnCB); PCB28; PCB66; PCB74; PCB105; PCB118; and PCB156.
• General and abdominal obesity were present in 34% and 53.9% of participants, respectively.
• Multiple statistical approaches were employed to evaluate the association of exposures to dioxins and DL-PCBs with obesity. Mediation analysis was performed to assess the potential role of A1c in this association.

TAKEAWAY:

• Multivariable logistic regression analysis found that a single exposure to higher concentrations of 1,2,3,4,6,7,8-HpCDD; 1,2,3,4,6,7,8,9-OCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 was associated with an increased risk for general and abdominal obesity (P for trend < .001 for all). A stratified analysis by sex found that except for PCB28, PCB66, PCB74, and PCB156, all chemicals were linked to increased general and abdominal obesity risk in both men and women.
• Combined exposure to dioxins and DL-PCBs was positively associated with the risk for obesity, with 1,2,3,4,6,7,8-HpCDD showing the greatest contribution.
• When considering obesity indices, 1,2,3,4,6,7,8,9-OCDD; 1,2,3,4,6,7,8-HpCDD; 3,3’,4,4’,5-PnCB; PCB74; PCB105; and PCB118 were significantly associated with body mass index and waist circumference.
• A1c levels significantly mediated the association between mixed exposure to dioxins and DL-PCBs and obesity (P < .05), with mediation proportions of 6.94% for general obesity and 5.21% for abdominal obesity.

IN PRACTICE:

“Our findings suggested that dioxins and DL-PCBs may be independent risk factors for obesity,” the authors wrote. “The hazards of dioxins on obesity should be emphasized, and additional studies are desirable to elucidate the potential mechanisms for dioxins on obesity in adults.”

SOURCE:

This study, led by Zhao-Xing Gao, Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University and Center for Big Data and Population Health of IHM, both in Hefei, China, was published online in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The cross-sectional nature of this study prevented the establishment of causal relationships between dioxins or DL-PCBs and obesity. This study relied on a small sample. Replacing chemical concentrations below the limit of detection with fixed values may have introduced bias.

DISCLOSURES:

This study was funded by grants from the National Natural Science Foundation of China, Research Fund of Anhui Institute of Translational Medicine, and Research Fund of Center for Big Data and Population Health of IHM. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

December 31, 2024

This transcript has been edited for clarity. 

I’m Tamaan K. Osbourne-Roberts, family medicine physician and lifestyle medicine physician, here to discuss GLP-1 receptor agonist (RA) contraindications — the skinny on when not to prescribe. 

It can be hard not to think of GLP-1 RAs like Ozempic and Mounjaro as silver bullets, long-awaited miracle drugs that we should probably be putting in the water. And it’s true they have the potential to help a lot of people. 

However, there are definitely groups of patients who should not take these drugs or should take them with caution. They include the following: 

Patients with a family history of certain cancers. Given that GLP-1 RAs can increase the risk for thyroid cancer, patients with a personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2 should not take these drugs.

Gut motility issues. Since one of the primary mechanisms of action for these drugs is to slow down the gut, patients with gastroparesis — diabetic or otherwise — or other gut motility issues should avoid these drugs. Patients with inflammatory bowel disease also should not use GLP-1 RAs. 

Pancreatitis. These medications can increase the risk for serious pancreatitis on their own, so use in patients who have had pancreatitis already is not recommended.

Renal impairment. An eGFR [estimated glomerular filtrationrate] below threshold, typically around 30 mL/min per 1.73 m², excludes GLP-1 RAs for some patients. Be certain to check the threshold for individual medications before prescribing. 

And finally, pregnancy. These drugs generally should not be used in pregnancy, and people of childbearing age with the ability to become pregnant should use contraception while taking these medications.

GLP-1 RAs are great medications and have the potential to revolutionize obesity medicine, but like all drugs, it’s important to use them safely. Knowing when not to prescribe them is an important step in ensuring patient safety and will help ensure they are available for those who need them.

Tamaan K. Osbourne-Roberts, MD, MBA, Denver, Colorado, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

December 31, 2024

This transcript has been edited for clarity. 

I’m Tamaan K. Osbourne-Roberts, family medicine physician and lifestyle medicine physician, here to discuss GLP-1 receptor agonist (RA) contraindications — the skinny on when not to prescribe. 

It can be hard not to think of GLP-1 RAs like Ozempic and Mounjaro as silver bullets, long-awaited miracle drugs that we should probably be putting in the water. And it’s true they have the potential to help a lot of people. 

However, there are definitely groups of patients who should not take these drugs or should take them with caution. They include the following: 

Patients with a family history of certain cancers. Given that GLP-1 RAs can increase the risk for thyroid cancer, patients with a personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2 should not take these drugs.

Gut motility issues. Since one of the primary mechanisms of action for these drugs is to slow down the gut, patients with gastroparesis — diabetic or otherwise — or other gut motility issues should avoid these drugs. Patients with inflammatory bowel disease also should not use GLP-1 RAs. 

Pancreatitis. These medications can increase the risk for serious pancreatitis on their own, so use in patients who have had pancreatitis already is not recommended.

Renal impairment. An eGFR [estimated glomerular filtrationrate] below threshold, typically around 30 mL/min per 1.73 m², excludes GLP-1 RAs for some patients. Be certain to check the threshold for individual medications before prescribing. 

And finally, pregnancy. These drugs generally should not be used in pregnancy, and people of childbearing age with the ability to become pregnant should use contraception while taking these medications.

GLP-1 RAs are great medications and have the potential to revolutionize obesity medicine, but like all drugs, it’s important to use them safely. Knowing when not to prescribe them is an important step in ensuring patient safety and will help ensure they are available for those who need them.

Tamaan K. Osbourne-Roberts, MD, MBA, Denver, Colorado, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

December 31, 2024

This transcript has been edited for clarity. 

I’m Tamaan K. Osbourne-Roberts, family medicine physician and lifestyle medicine physician, here to discuss GLP-1 receptor agonist (RA) contraindications — the skinny on when not to prescribe. 

It can be hard not to think of GLP-1 RAs like Ozempic and Mounjaro as silver bullets, long-awaited miracle drugs that we should probably be putting in the water. And it’s true they have the potential to help a lot of people. 

However, there are definitely groups of patients who should not take these drugs or should take them with caution. They include the following: 

Patients with a family history of certain cancers. Given that GLP-1 RAs can increase the risk for thyroid cancer, patients with a personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2 should not take these drugs.

Gut motility issues. Since one of the primary mechanisms of action for these drugs is to slow down the gut, patients with gastroparesis — diabetic or otherwise — or other gut motility issues should avoid these drugs. Patients with inflammatory bowel disease also should not use GLP-1 RAs. 

Pancreatitis. These medications can increase the risk for serious pancreatitis on their own, so use in patients who have had pancreatitis already is not recommended.

Renal impairment. An eGFR [estimated glomerular filtrationrate] below threshold, typically around 30 mL/min per 1.73 m², excludes GLP-1 RAs for some patients. Be certain to check the threshold for individual medications before prescribing. 

And finally, pregnancy. These drugs generally should not be used in pregnancy, and people of childbearing age with the ability to become pregnant should use contraception while taking these medications.

GLP-1 RAs are great medications and have the potential to revolutionize obesity medicine, but like all drugs, it’s important to use them safely. Knowing when not to prescribe them is an important step in ensuring patient safety and will help ensure they are available for those who need them.

Tamaan K. Osbourne-Roberts, MD, MBA, Denver, Colorado, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

The Food and Drug Administration (FDA) has approved the obesity treatment tirzepatide (Zepbound, Eli Lilly) for treating moderate to severe obstructive sleep apnea (OSA) in adults with obesity.

The new indication is for use in combination with reduced-calorie diet and increased physical activity. The once-weekly injectable is the first-ever drug treatment for OSA. Until now, OSA treatment has focused on mechanical support during sleep in the form of positive airway pressure (PAP) therapy. 

“Today’s approval marks the first drug treatment option for certain patients with obstructive sleep apnea,” said Sally Seymour, MD, director of the Division of Pulmonology, Allergy, and Critical Care in the FDA’s Center for Drug Evaluation and Research. “This is a major step forward for patients with obstructive sleep apnea.”

Excess weight is a major risk factor for OSA, in which the upper airways become blocked multiple times during sleep and obstruct breathing. The condition causes loud snoring, recurrent awakenings, and daytime sleepiness. It is also associated with cardiovascular disease.

Tirzepatide, a dual glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide receptor agonist, was initially approved with brand name Mounjaro in May 2022 for the treatment of type 2 diabetes, and as Zepbound for weight loss in November 2023.

The new OSA approval was based on two phase 3, double-blind randomized controlled trials, SURMOUNT-OSA, in patients with obesity and moderate to severe OSA, conducted at 60 sites in nine countries. Results from both were presented in June 2024 at the annual Scientific Sessions of the American Diabetes Association and were simultaneously published in The New England Journal of Medicine.

The first trial enrolled 469 participants who were unable or unwilling to use PAP therapy, while the second included 234 who had been using PAP for at least 3 months and planned to continue during the trial. In both, the participants randomly received either 10 mg or 15 mg of tirzepatide or placebo once weekly for 52 weeks.

At baseline, 65%-70% of participants had severe OSA, with more than 30 events/h on the apnea-hypopnea index (AHI) and a mean of 51.5 events/h. By 52 weeks, those randomized to tirzepatide had 27-30 fewer events/h, compared with 4-6 fewer events/h for those taking placebo. In addition, significantly more of those on tirzepatide achieved OSA remission or severity reduction to mild.

Those randomized to tirzepatide also averaged up to 20% weight loss, significantly more than with placebo. “The improvement in AHI in participants with OSA is likely related to body weight reduction with Zepbound,” according to an FDA statement.

Side effects of tirzepatide include nausea, diarrhea, vomiting, constipation, abdominal discomfort and pain, injection site reactions, fatigue, hypersensitivity reactions (typically fever and rash), burping, hair loss, and gastroesophageal reflux disease.

In an editorial accompanying The New England Journal of Medicine publication of the SURMOUNT-OSA results, Sanjay R. Patel, MD, wrote: “The potential incorporation of tirzepatide into treatment algorithms for obstructive sleep apnea should include consideration of the challenges of adherence to treatment and the imperative to address racial disparities in medical care.”

Patel, who is professor of medicine and epidemiology at the University of Pittsburgh in Pennsylvania, and medical director of the University of Pittsburgh Medical Center’s Comprehensive Sleep Disorders program, pointed out that suboptimal adherence to continuous PAP therapy has been a major limitation, but that adherence to the GLP-1 drug class has also been suboptimal.

“Although adherence to tirzepatide therapy in the SURMOUNT-OSA trial was high, real-world evidence suggests that nearly 50% of patients who begin treatment with a GLP-1 receptor agonist for obesity discontinue therapy within 12 months. Thus, it is likely that any incorporation of tirzepatide into treatment pathways for obstructive sleep apnea will not diminish the importance of long-term strategies to optimize adherence to treatment.”

Moreover, Patel noted, “racial disparities in the use of GLP-1 receptor agonists among patients with diabetes arouse concern that the addition of tirzepatide as a treatment option for obstructive sleep apnea without directly addressing policies relative to coverage of care will only further exacerbate already pervasive disparities in clinical care for obstructive sleep apnea.”

Patel reported consulting for Apnimed, Bayer Pharmaceuticals, Lilly USA, NovaResp Technologies, Philips Respironics, and Powell Mansfield. He is a fiduciary officer of BreathPA.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) has approved the obesity treatment tirzepatide (Zepbound, Eli Lilly) for treating moderate to severe obstructive sleep apnea (OSA) in adults with obesity.

The new indication is for use in combination with reduced-calorie diet and increased physical activity. The once-weekly injectable is the first-ever drug treatment for OSA. Until now, OSA treatment has focused on mechanical support during sleep in the form of positive airway pressure (PAP) therapy. 

“Today’s approval marks the first drug treatment option for certain patients with obstructive sleep apnea,” said Sally Seymour, MD, director of the Division of Pulmonology, Allergy, and Critical Care in the FDA’s Center for Drug Evaluation and Research. “This is a major step forward for patients with obstructive sleep apnea.”

Excess weight is a major risk factor for OSA, in which the upper airways become blocked multiple times during sleep and obstruct breathing. The condition causes loud snoring, recurrent awakenings, and daytime sleepiness. It is also associated with cardiovascular disease.

Tirzepatide, a dual glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide receptor agonist, was initially approved with brand name Mounjaro in May 2022 for the treatment of type 2 diabetes, and as Zepbound for weight loss in November 2023.

The new OSA approval was based on two phase 3, double-blind randomized controlled trials, SURMOUNT-OSA, in patients with obesity and moderate to severe OSA, conducted at 60 sites in nine countries. Results from both were presented in June 2024 at the annual Scientific Sessions of the American Diabetes Association and were simultaneously published in The New England Journal of Medicine.

The first trial enrolled 469 participants who were unable or unwilling to use PAP therapy, while the second included 234 who had been using PAP for at least 3 months and planned to continue during the trial. In both, the participants randomly received either 10 mg or 15 mg of tirzepatide or placebo once weekly for 52 weeks.

At baseline, 65%-70% of participants had severe OSA, with more than 30 events/h on the apnea-hypopnea index (AHI) and a mean of 51.5 events/h. By 52 weeks, those randomized to tirzepatide had 27-30 fewer events/h, compared with 4-6 fewer events/h for those taking placebo. In addition, significantly more of those on tirzepatide achieved OSA remission or severity reduction to mild.

Those randomized to tirzepatide also averaged up to 20% weight loss, significantly more than with placebo. “The improvement in AHI in participants with OSA is likely related to body weight reduction with Zepbound,” according to an FDA statement.

Side effects of tirzepatide include nausea, diarrhea, vomiting, constipation, abdominal discomfort and pain, injection site reactions, fatigue, hypersensitivity reactions (typically fever and rash), burping, hair loss, and gastroesophageal reflux disease.

In an editorial accompanying The New England Journal of Medicine publication of the SURMOUNT-OSA results, Sanjay R. Patel, MD, wrote: “The potential incorporation of tirzepatide into treatment algorithms for obstructive sleep apnea should include consideration of the challenges of adherence to treatment and the imperative to address racial disparities in medical care.”

Patel, who is professor of medicine and epidemiology at the University of Pittsburgh in Pennsylvania, and medical director of the University of Pittsburgh Medical Center’s Comprehensive Sleep Disorders program, pointed out that suboptimal adherence to continuous PAP therapy has been a major limitation, but that adherence to the GLP-1 drug class has also been suboptimal.

“Although adherence to tirzepatide therapy in the SURMOUNT-OSA trial was high, real-world evidence suggests that nearly 50% of patients who begin treatment with a GLP-1 receptor agonist for obesity discontinue therapy within 12 months. Thus, it is likely that any incorporation of tirzepatide into treatment pathways for obstructive sleep apnea will not diminish the importance of long-term strategies to optimize adherence to treatment.”

Moreover, Patel noted, “racial disparities in the use of GLP-1 receptor agonists among patients with diabetes arouse concern that the addition of tirzepatide as a treatment option for obstructive sleep apnea without directly addressing policies relative to coverage of care will only further exacerbate already pervasive disparities in clinical care for obstructive sleep apnea.”

Patel reported consulting for Apnimed, Bayer Pharmaceuticals, Lilly USA, NovaResp Technologies, Philips Respironics, and Powell Mansfield. He is a fiduciary officer of BreathPA.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) has approved the obesity treatment tirzepatide (Zepbound, Eli Lilly) for treating moderate to severe obstructive sleep apnea (OSA) in adults with obesity.

The new indication is for use in combination with reduced-calorie diet and increased physical activity. The once-weekly injectable is the first-ever drug treatment for OSA. Until now, OSA treatment has focused on mechanical support during sleep in the form of positive airway pressure (PAP) therapy. 

“Today’s approval marks the first drug treatment option for certain patients with obstructive sleep apnea,” said Sally Seymour, MD, director of the Division of Pulmonology, Allergy, and Critical Care in the FDA’s Center for Drug Evaluation and Research. “This is a major step forward for patients with obstructive sleep apnea.”

Excess weight is a major risk factor for OSA, in which the upper airways become blocked multiple times during sleep and obstruct breathing. The condition causes loud snoring, recurrent awakenings, and daytime sleepiness. It is also associated with cardiovascular disease.

Tirzepatide, a dual glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide receptor agonist, was initially approved with brand name Mounjaro in May 2022 for the treatment of type 2 diabetes, and as Zepbound for weight loss in November 2023.

The new OSA approval was based on two phase 3, double-blind randomized controlled trials, SURMOUNT-OSA, in patients with obesity and moderate to severe OSA, conducted at 60 sites in nine countries. Results from both were presented in June 2024 at the annual Scientific Sessions of the American Diabetes Association and were simultaneously published in The New England Journal of Medicine.

The first trial enrolled 469 participants who were unable or unwilling to use PAP therapy, while the second included 234 who had been using PAP for at least 3 months and planned to continue during the trial. In both, the participants randomly received either 10 mg or 15 mg of tirzepatide or placebo once weekly for 52 weeks.

At baseline, 65%-70% of participants had severe OSA, with more than 30 events/h on the apnea-hypopnea index (AHI) and a mean of 51.5 events/h. By 52 weeks, those randomized to tirzepatide had 27-30 fewer events/h, compared with 4-6 fewer events/h for those taking placebo. In addition, significantly more of those on tirzepatide achieved OSA remission or severity reduction to mild.

Those randomized to tirzepatide also averaged up to 20% weight loss, significantly more than with placebo. “The improvement in AHI in participants with OSA is likely related to body weight reduction with Zepbound,” according to an FDA statement.

Side effects of tirzepatide include nausea, diarrhea, vomiting, constipation, abdominal discomfort and pain, injection site reactions, fatigue, hypersensitivity reactions (typically fever and rash), burping, hair loss, and gastroesophageal reflux disease.

In an editorial accompanying The New England Journal of Medicine publication of the SURMOUNT-OSA results, Sanjay R. Patel, MD, wrote: “The potential incorporation of tirzepatide into treatment algorithms for obstructive sleep apnea should include consideration of the challenges of adherence to treatment and the imperative to address racial disparities in medical care.”

Patel, who is professor of medicine and epidemiology at the University of Pittsburgh in Pennsylvania, and medical director of the University of Pittsburgh Medical Center’s Comprehensive Sleep Disorders program, pointed out that suboptimal adherence to continuous PAP therapy has been a major limitation, but that adherence to the GLP-1 drug class has also been suboptimal.

“Although adherence to tirzepatide therapy in the SURMOUNT-OSA trial was high, real-world evidence suggests that nearly 50% of patients who begin treatment with a GLP-1 receptor agonist for obesity discontinue therapy within 12 months. Thus, it is likely that any incorporation of tirzepatide into treatment pathways for obstructive sleep apnea will not diminish the importance of long-term strategies to optimize adherence to treatment.”

Moreover, Patel noted, “racial disparities in the use of GLP-1 receptor agonists among patients with diabetes arouse concern that the addition of tirzepatide as a treatment option for obstructive sleep apnea without directly addressing policies relative to coverage of care will only further exacerbate already pervasive disparities in clinical care for obstructive sleep apnea.”

Patel reported consulting for Apnimed, Bayer Pharmaceuticals, Lilly USA, NovaResp Technologies, Philips Respironics, and Powell Mansfield. He is a fiduciary officer of BreathPA.

A version of this article first appeared on Medscape.com.

TOPLINE:

Long-term daily supplementation with moderate (1600 international units [IU]) or high (3200 IU) doses of vitamin D3 doesn’t reduce the risk for type 2 diabetes (T2D) among generally healthy older adults who have serum vitamin D levels sufficient for bone health.

 

METHODOLOGY:

• Observational studies have consistently linked low vitamin D levels with an increased risk for T2D, and short-term randomized trials have shown a protective effect of vitamin D supplementation for those with impaired glucose metabolism but not in populations of average risk-taking low doses.
• The Finnish Vitamin D Trial, conducted from 2012 to 2018 in generally healthy men (≥ 60 years) and women (≥ 65 years) without a history of cardiovascular disease or cancer, assessed the effects of 5 years of moderate and high vitamin D3 supplementation on the incidence of major chronic diseases.
• This analysis of T2D incidence included 2271 older participants (mean age, 68.2 years; 43.9% women) without self-reported use of diabetes medications at baseline.
• Participants were randomly assigned to receive placebo (n = 760), 1600 IU/d of vitamin D3 (n = 744), or 3200 IU/d of vitamin D3 (n = 767) and followed for a mean duration of 4.2 years, with T2D incidence assessed by diagnostic code from health registries.
• A representative subcohort of 505 participants underwent detailed investigations including blood sampling at months 0, 6, 12, and 24 for serum 25-hydroxyvitamin D3 [25(OH)D3], plasma glucose, and insulin concentrations.

TAKEAWAY:

• No significant difference in T2D incidence was observed between groups: Placebo (5.0%; 38 people), 1600 IU/d (4.2%; 31 people), and 3200 IU/d (4.7%; 36 people; P = .731 for trend), with no appreciable sex differences.
• When stratified by body mass index (BMI), a lower incidence of T2D with vitamin D supplementation was observed among those with a BMI < 25 (with wide CIs), but not among those with a higher BMI.
• In the subcohort, no significant differences in changes in plasma glucose, insulin concentrations, BMI, or waist circumference with vitamin D3 were observed between the three treatment groups during the 24-month follow-up (P ≥ .19).
• In an analysis excluding T2D from the first 2 years, researchers observed a potentially increased risk for T2D with increasing vitamin D dose (with wide CIs).

IN PRACTICE:

“Our findings do not suggest benefits of long-term moderate- or high-dose vitamin D3 supplementation for incidence of type 2 diabetes or glucose metabolism or body size among generally healthy older vitamin D–sufficient men and women who were not at high risk for type 2 diabetes,” the authors wrote.

SOURCE:

The study was led by Jyrki K. Virtanen, University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, and was published online in Diabetologia.

LIMITATIONS:

The study relied on national health registries to collect data on incident T2D events, which may have led to some T2D cases being missed. Data on serum 25(OH)D3 concentrations were available for the subcohort only, which prevented the investigation of whether vitamin D–deficient participants would have benefited from supplementation. The study was not specifically designed or powered for diabetes prevention, and information on participants’ diabetes history at baseline was not available. Wide CIs suggest uncertainty around some of the findings. Study participants were White and older, so caution is needed in generalizing results to groups of other ages, races and ethnicities, and different vitamin D levels.

DISCLOSURES:

The study received funding from the Academy of Finland, University of Eastern Finland, Juho Vainio Foundation, and other sources. Some authors reported receiving grants or travel support from pharmaceutical companies and certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Long-term daily supplementation with moderate (1600 international units [IU]) or high (3200 IU) doses of vitamin D3 doesn’t reduce the risk for type 2 diabetes (T2D) among generally healthy older adults who have serum vitamin D levels sufficient for bone health.

 

METHODOLOGY:

• Observational studies have consistently linked low vitamin D levels with an increased risk for T2D, and short-term randomized trials have shown a protective effect of vitamin D supplementation for those with impaired glucose metabolism but not in populations of average risk-taking low doses.
• The Finnish Vitamin D Trial, conducted from 2012 to 2018 in generally healthy men (≥ 60 years) and women (≥ 65 years) without a history of cardiovascular disease or cancer, assessed the effects of 5 years of moderate and high vitamin D3 supplementation on the incidence of major chronic diseases.
• This analysis of T2D incidence included 2271 older participants (mean age, 68.2 years; 43.9% women) without self-reported use of diabetes medications at baseline.
• Participants were randomly assigned to receive placebo (n = 760), 1600 IU/d of vitamin D3 (n = 744), or 3200 IU/d of vitamin D3 (n = 767) and followed for a mean duration of 4.2 years, with T2D incidence assessed by diagnostic code from health registries.
• A representative subcohort of 505 participants underwent detailed investigations including blood sampling at months 0, 6, 12, and 24 for serum 25-hydroxyvitamin D3 [25(OH)D3], plasma glucose, and insulin concentrations.

TAKEAWAY:

• No significant difference in T2D incidence was observed between groups: Placebo (5.0%; 38 people), 1600 IU/d (4.2%; 31 people), and 3200 IU/d (4.7%; 36 people; P = .731 for trend), with no appreciable sex differences.
• When stratified by body mass index (BMI), a lower incidence of T2D with vitamin D supplementation was observed among those with a BMI < 25 (with wide CIs), but not among those with a higher BMI.
• In the subcohort, no significant differences in changes in plasma glucose, insulin concentrations, BMI, or waist circumference with vitamin D3 were observed between the three treatment groups during the 24-month follow-up (P ≥ .19).
• In an analysis excluding T2D from the first 2 years, researchers observed a potentially increased risk for T2D with increasing vitamin D dose (with wide CIs).

IN PRACTICE:

“Our findings do not suggest benefits of long-term moderate- or high-dose vitamin D3 supplementation for incidence of type 2 diabetes or glucose metabolism or body size among generally healthy older vitamin D–sufficient men and women who were not at high risk for type 2 diabetes,” the authors wrote.

SOURCE:

The study was led by Jyrki K. Virtanen, University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, and was published online in Diabetologia.

LIMITATIONS:

The study relied on national health registries to collect data on incident T2D events, which may have led to some T2D cases being missed. Data on serum 25(OH)D3 concentrations were available for the subcohort only, which prevented the investigation of whether vitamin D–deficient participants would have benefited from supplementation. The study was not specifically designed or powered for diabetes prevention, and information on participants’ diabetes history at baseline was not available. Wide CIs suggest uncertainty around some of the findings. Study participants were White and older, so caution is needed in generalizing results to groups of other ages, races and ethnicities, and different vitamin D levels.

DISCLOSURES:

The study received funding from the Academy of Finland, University of Eastern Finland, Juho Vainio Foundation, and other sources. Some authors reported receiving grants or travel support from pharmaceutical companies and certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Long-term daily supplementation with moderate (1600 international units [IU]) or high (3200 IU) doses of vitamin D3 doesn’t reduce the risk for type 2 diabetes (T2D) among generally healthy older adults who have serum vitamin D levels sufficient for bone health.

 

METHODOLOGY:

• Observational studies have consistently linked low vitamin D levels with an increased risk for T2D, and short-term randomized trials have shown a protective effect of vitamin D supplementation for those with impaired glucose metabolism but not in populations of average risk-taking low doses.
• The Finnish Vitamin D Trial, conducted from 2012 to 2018 in generally healthy men (≥ 60 years) and women (≥ 65 years) without a history of cardiovascular disease or cancer, assessed the effects of 5 years of moderate and high vitamin D3 supplementation on the incidence of major chronic diseases.
• This analysis of T2D incidence included 2271 older participants (mean age, 68.2 years; 43.9% women) without self-reported use of diabetes medications at baseline.
• Participants were randomly assigned to receive placebo (n = 760), 1600 IU/d of vitamin D3 (n = 744), or 3200 IU/d of vitamin D3 (n = 767) and followed for a mean duration of 4.2 years, with T2D incidence assessed by diagnostic code from health registries.
• A representative subcohort of 505 participants underwent detailed investigations including blood sampling at months 0, 6, 12, and 24 for serum 25-hydroxyvitamin D3 [25(OH)D3], plasma glucose, and insulin concentrations.

TAKEAWAY:

• No significant difference in T2D incidence was observed between groups: Placebo (5.0%; 38 people), 1600 IU/d (4.2%; 31 people), and 3200 IU/d (4.7%; 36 people; P = .731 for trend), with no appreciable sex differences.
• When stratified by body mass index (BMI), a lower incidence of T2D with vitamin D supplementation was observed among those with a BMI < 25 (with wide CIs), but not among those with a higher BMI.
• In the subcohort, no significant differences in changes in plasma glucose, insulin concentrations, BMI, or waist circumference with vitamin D3 were observed between the three treatment groups during the 24-month follow-up (P ≥ .19).
• In an analysis excluding T2D from the first 2 years, researchers observed a potentially increased risk for T2D with increasing vitamin D dose (with wide CIs).

IN PRACTICE:

“Our findings do not suggest benefits of long-term moderate- or high-dose vitamin D3 supplementation for incidence of type 2 diabetes or glucose metabolism or body size among generally healthy older vitamin D–sufficient men and women who were not at high risk for type 2 diabetes,” the authors wrote.

SOURCE:

The study was led by Jyrki K. Virtanen, University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, and was published online in Diabetologia.

LIMITATIONS:

The study relied on national health registries to collect data on incident T2D events, which may have led to some T2D cases being missed. Data on serum 25(OH)D3 concentrations were available for the subcohort only, which prevented the investigation of whether vitamin D–deficient participants would have benefited from supplementation. The study was not specifically designed or powered for diabetes prevention, and information on participants’ diabetes history at baseline was not available. Wide CIs suggest uncertainty around some of the findings. Study participants were White and older, so caution is needed in generalizing results to groups of other ages, races and ethnicities, and different vitamin D levels.

DISCLOSURES:

The study received funding from the Academy of Finland, University of Eastern Finland, Juho Vainio Foundation, and other sources. Some authors reported receiving grants or travel support from pharmaceutical companies and certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

A new evidence-based guideline recommends prescribing metformin when initiating antipsychotic treatment to help mitigate weight gain in certain instances.

There is “good evidence” that metformin can prevent weight gain caused by antipsychotics, first author Aoife Carolan, MPharm, with Saint John of God Hospital and the Royal College of Surgeons, Dublin, Ireland, said in an interview.

“While there have been some general recommendations to use metformin for this purpose, until now, clear guidance on how to prevent this side effect of treatment has been lacking,” Carolan said. “At present, it is likely that metformin is underused and when used, it is likely to be started after the weight gain occurs. Therefore, this guideline will reflect a new practice for most clinicians.” 

The guideline was published online on December 9 in Schizophrenia Bulletin.

It offers three key recommendations:

• Initiate metformin when prescribing a high-risk weight-inducing antipsychotic, such as olanzapine or clozapine.
• Initiate metformin with a medium-risk antipsychotic (quetiapine, paliperidone, or risperidone) in patients with one or more cardiometabolic risk factors; in patients aged 10-25 years; or in patients with a body mass index (BMI) between 25 and 30.
• Initiate metformin with any antipsychotic if > 3% increase in baseline body weight is observed during the first 12 months of treatment.

The guideline authors noted that a recent Cochrane review of pharmacological interventions for the prevention of antipsychotic-induced weight gain showed that metformin is the only pharmacological agent that may be effective for preventing weight gain.

The review showed that starting metformin with antipsychotic medicines can reduce the extent of weight gain by 4.03 kg, compared with controls.

In terms of dose, the guideline recommends escalating from 500 mg daily to 500 mg twice daily over 2 weeks, followed by biweekly increases of 500 mg as tolerated up to 1 g twice daily at week 6.

Metformin should be discontinued if risks for lactic acidosis are present, or the condition is suspected; if BMI falls below 20; or if the antipsychotic medicine is discontinued. Metformin should be avoided where there is harmful use of alcohol.

While the guideline focused on metformin, it also recommends that, if available, glucagon-like peptide 1 (GLP-1) agonists, should be considered for patients with a BMI > 30, certain cardiometabolic diseases, or obstructive sleep apnea.

“At present, there is insufficient evidence for the risk benefit calculation for GLP-1 agonists as a preventative agent, but we will continue to monitor the evidence and update the guideline if it is needed,” Carolan said.

 

Experts Weigh In

This news organization asked several psychiatrists not involved in the guideline development for their thoughts on it.

Ipsit Vahia, MD, McLean Hospital, Belmont, and Harvard Medical School, Boston, both in Massachusetts, said: “There is an urgent need for evidence to guide treatments that can mitigate the metabolic side effects of antipsychotics.”

While metformin has shown some potential based on preliminary studies, this paper offers more substantial evidence to guide clinicians in using these medications and marks a significant step forward in clinical psychiatry, Vahia said.

Lynn DeLisi, MD, also with Harvard Medical School, emphasized that decisions about the use of metformin in patients taking antipsychotics should be made on an individual basis.

“It should not be used routinely with all antipsychotics, as metformin has its own set of side effects,” said DeLisi.

Xiaoduo Fan, MD, MPH, with UMass Chan Medical School, Worcester, Massachusetts, director of UMass MIND, noted that the evidence regarding metformin’s benefits to prevent or mitigate antipsychotic-induced weight gain and other metabolic disturbances is clear.

“It was somewhat controversial when psychiatrists started to prescribe metformin 15-20 years ago, but now many psychiatrists feel comfortable doing so. In many clinical settings, especially in academically affiliated hospitals, using metformin to address antipsychotic-associated metabolic concerns has become part of the routine practice,” said Fan.

“The guideline recommendations are generally consistent with what we have been doing clinically. The publication of the guideline may help promote wider use of metformin in the patient population we serve,” Fan added.

Fan also noted that a growing body of the literature has demonstrated the weight loss effect and other metabolic benefits of GLP-1 agonists. “Compared with metformin, GLP-1 agonists are more effective in inducing weight loss and mitigating cardiometabolic risks,” he said.

Fan said his group has completed a double-blind, placebo-controlled trial of 6-month weekly injection of the GLP-1 receptor agonist exenatide, as an adjunctive treatment in 70 patients with schizophrenia. “Preliminary data analysis suggests positive metabolic benefits,” he reported.

This research had no commercial funding. Carolan had no relevant disclosures. A complete list of disclosures for the guideline authors is available with the original article. DeLisi had no relevant disclosures. Fan had received research support from Alkermes, Eli Lilly, Janssen, Otsuka Pharmaceutical, Roche, Lundbeck, Boehringer Ingelheim, Neurocrine Biosciences, Intra-Cellular Therapies, Teva, and Bristol-Myers Squibb. He served on the BMJ Best Practice’s US Advisory Panel and as the contributor for the BMJ Best Practice — Schizophrenia Topic. Vahia had served as a consultant for Otsuka.

A version of this article appeared on Medscape.com.

A new evidence-based guideline recommends prescribing metformin when initiating antipsychotic treatment to help mitigate weight gain in certain instances.

There is “good evidence” that metformin can prevent weight gain caused by antipsychotics, first author Aoife Carolan, MPharm, with Saint John of God Hospital and the Royal College of Surgeons, Dublin, Ireland, said in an interview.

“While there have been some general recommendations to use metformin for this purpose, until now, clear guidance on how to prevent this side effect of treatment has been lacking,” Carolan said. “At present, it is likely that metformin is underused and when used, it is likely to be started after the weight gain occurs. Therefore, this guideline will reflect a new practice for most clinicians.” 

The guideline was published online on December 9 in Schizophrenia Bulletin.

It offers three key recommendations:

• Initiate metformin when prescribing a high-risk weight-inducing antipsychotic, such as olanzapine or clozapine.
• Initiate metformin with a medium-risk antipsychotic (quetiapine, paliperidone, or risperidone) in patients with one or more cardiometabolic risk factors; in patients aged 10-25 years; or in patients with a body mass index (BMI) between 25 and 30.
• Initiate metformin with any antipsychotic if > 3% increase in baseline body weight is observed during the first 12 months of treatment.

The guideline authors noted that a recent Cochrane review of pharmacological interventions for the prevention of antipsychotic-induced weight gain showed that metformin is the only pharmacological agent that may be effective for preventing weight gain.

The review showed that starting metformin with antipsychotic medicines can reduce the extent of weight gain by 4.03 kg, compared with controls.

In terms of dose, the guideline recommends escalating from 500 mg daily to 500 mg twice daily over 2 weeks, followed by biweekly increases of 500 mg as tolerated up to 1 g twice daily at week 6.

Metformin should be discontinued if risks for lactic acidosis are present, or the condition is suspected; if BMI falls below 20; or if the antipsychotic medicine is discontinued. Metformin should be avoided where there is harmful use of alcohol.

While the guideline focused on metformin, it also recommends that, if available, glucagon-like peptide 1 (GLP-1) agonists, should be considered for patients with a BMI > 30, certain cardiometabolic diseases, or obstructive sleep apnea.

“At present, there is insufficient evidence for the risk benefit calculation for GLP-1 agonists as a preventative agent, but we will continue to monitor the evidence and update the guideline if it is needed,” Carolan said.

 

Experts Weigh In

This news organization asked several psychiatrists not involved in the guideline development for their thoughts on it.

Ipsit Vahia, MD, McLean Hospital, Belmont, and Harvard Medical School, Boston, both in Massachusetts, said: “There is an urgent need for evidence to guide treatments that can mitigate the metabolic side effects of antipsychotics.”

While metformin has shown some potential based on preliminary studies, this paper offers more substantial evidence to guide clinicians in using these medications and marks a significant step forward in clinical psychiatry, Vahia said.

Lynn DeLisi, MD, also with Harvard Medical School, emphasized that decisions about the use of metformin in patients taking antipsychotics should be made on an individual basis.

“It should not be used routinely with all antipsychotics, as metformin has its own set of side effects,” said DeLisi.

Xiaoduo Fan, MD, MPH, with UMass Chan Medical School, Worcester, Massachusetts, director of UMass MIND, noted that the evidence regarding metformin’s benefits to prevent or mitigate antipsychotic-induced weight gain and other metabolic disturbances is clear.

“It was somewhat controversial when psychiatrists started to prescribe metformin 15-20 years ago, but now many psychiatrists feel comfortable doing so. In many clinical settings, especially in academically affiliated hospitals, using metformin to address antipsychotic-associated metabolic concerns has become part of the routine practice,” said Fan.

“The guideline recommendations are generally consistent with what we have been doing clinically. The publication of the guideline may help promote wider use of metformin in the patient population we serve,” Fan added.

Fan also noted that a growing body of the literature has demonstrated the weight loss effect and other metabolic benefits of GLP-1 agonists. “Compared with metformin, GLP-1 agonists are more effective in inducing weight loss and mitigating cardiometabolic risks,” he said.

Fan said his group has completed a double-blind, placebo-controlled trial of 6-month weekly injection of the GLP-1 receptor agonist exenatide, as an adjunctive treatment in 70 patients with schizophrenia. “Preliminary data analysis suggests positive metabolic benefits,” he reported.

This research had no commercial funding. Carolan had no relevant disclosures. A complete list of disclosures for the guideline authors is available with the original article. DeLisi had no relevant disclosures. Fan had received research support from Alkermes, Eli Lilly, Janssen, Otsuka Pharmaceutical, Roche, Lundbeck, Boehringer Ingelheim, Neurocrine Biosciences, Intra-Cellular Therapies, Teva, and Bristol-Myers Squibb. He served on the BMJ Best Practice’s US Advisory Panel and as the contributor for the BMJ Best Practice — Schizophrenia Topic. Vahia had served as a consultant for Otsuka.

A version of this article appeared on Medscape.com.

A new evidence-based guideline recommends prescribing metformin when initiating antipsychotic treatment to help mitigate weight gain in certain instances.

There is “good evidence” that metformin can prevent weight gain caused by antipsychotics, first author Aoife Carolan, MPharm, with Saint John of God Hospital and the Royal College of Surgeons, Dublin, Ireland, said in an interview.

“While there have been some general recommendations to use metformin for this purpose, until now, clear guidance on how to prevent this side effect of treatment has been lacking,” Carolan said. “At present, it is likely that metformin is underused and when used, it is likely to be started after the weight gain occurs. Therefore, this guideline will reflect a new practice for most clinicians.” 

The guideline was published online on December 9 in Schizophrenia Bulletin.

It offers three key recommendations:

• Initiate metformin when prescribing a high-risk weight-inducing antipsychotic, such as olanzapine or clozapine.
• Initiate metformin with a medium-risk antipsychotic (quetiapine, paliperidone, or risperidone) in patients with one or more cardiometabolic risk factors; in patients aged 10-25 years; or in patients with a body mass index (BMI) between 25 and 30.
• Initiate metformin with any antipsychotic if > 3% increase in baseline body weight is observed during the first 12 months of treatment.

The guideline authors noted that a recent Cochrane review of pharmacological interventions for the prevention of antipsychotic-induced weight gain showed that metformin is the only pharmacological agent that may be effective for preventing weight gain.

The review showed that starting metformin with antipsychotic medicines can reduce the extent of weight gain by 4.03 kg, compared with controls.

In terms of dose, the guideline recommends escalating from 500 mg daily to 500 mg twice daily over 2 weeks, followed by biweekly increases of 500 mg as tolerated up to 1 g twice daily at week 6.

Metformin should be discontinued if risks for lactic acidosis are present, or the condition is suspected; if BMI falls below 20; or if the antipsychotic medicine is discontinued. Metformin should be avoided where there is harmful use of alcohol.

While the guideline focused on metformin, it also recommends that, if available, glucagon-like peptide 1 (GLP-1) agonists, should be considered for patients with a BMI > 30, certain cardiometabolic diseases, or obstructive sleep apnea.

“At present, there is insufficient evidence for the risk benefit calculation for GLP-1 agonists as a preventative agent, but we will continue to monitor the evidence and update the guideline if it is needed,” Carolan said.

 

Experts Weigh In

This news organization asked several psychiatrists not involved in the guideline development for their thoughts on it.

Ipsit Vahia, MD, McLean Hospital, Belmont, and Harvard Medical School, Boston, both in Massachusetts, said: “There is an urgent need for evidence to guide treatments that can mitigate the metabolic side effects of antipsychotics.”

While metformin has shown some potential based on preliminary studies, this paper offers more substantial evidence to guide clinicians in using these medications and marks a significant step forward in clinical psychiatry, Vahia said.

Lynn DeLisi, MD, also with Harvard Medical School, emphasized that decisions about the use of metformin in patients taking antipsychotics should be made on an individual basis.

“It should not be used routinely with all antipsychotics, as metformin has its own set of side effects,” said DeLisi.

Xiaoduo Fan, MD, MPH, with UMass Chan Medical School, Worcester, Massachusetts, director of UMass MIND, noted that the evidence regarding metformin’s benefits to prevent or mitigate antipsychotic-induced weight gain and other metabolic disturbances is clear.

“It was somewhat controversial when psychiatrists started to prescribe metformin 15-20 years ago, but now many psychiatrists feel comfortable doing so. In many clinical settings, especially in academically affiliated hospitals, using metformin to address antipsychotic-associated metabolic concerns has become part of the routine practice,” said Fan.

“The guideline recommendations are generally consistent with what we have been doing clinically. The publication of the guideline may help promote wider use of metformin in the patient population we serve,” Fan added.

Fan also noted that a growing body of the literature has demonstrated the weight loss effect and other metabolic benefits of GLP-1 agonists. “Compared with metformin, GLP-1 agonists are more effective in inducing weight loss and mitigating cardiometabolic risks,” he said.

Fan said his group has completed a double-blind, placebo-controlled trial of 6-month weekly injection of the GLP-1 receptor agonist exenatide, as an adjunctive treatment in 70 patients with schizophrenia. “Preliminary data analysis suggests positive metabolic benefits,” he reported.

This research had no commercial funding. Carolan had no relevant disclosures. A complete list of disclosures for the guideline authors is available with the original article. DeLisi had no relevant disclosures. Fan had received research support from Alkermes, Eli Lilly, Janssen, Otsuka Pharmaceutical, Roche, Lundbeck, Boehringer Ingelheim, Neurocrine Biosciences, Intra-Cellular Therapies, Teva, and Bristol-Myers Squibb. He served on the BMJ Best Practice’s US Advisory Panel and as the contributor for the BMJ Best Practice — Schizophrenia Topic. Vahia had served as a consultant for Otsuka.

A version of this article appeared on Medscape.com.

XEN-D0501, a transient receptor potential vanilloid 1 (TRPV1) antagonist, is gaining attention for its potential as an oral tablet to treat type 2 diabetes, obesity, and cardiovascular diseases. Dorte X. Gram, PhD, founder of Pila Pharma, a Swedish pharmaceutical company investigating XEN-D0501, first noticed the connection more than 20 years ago as a researcher at Novo Nordisk. 

“In my very first experiments, I noticed that mice who would normally become diabetic didn’t get diabetes at all,” she said in an interview.

These surprising observations prompted Gram to investigate further the potential role of the TRPV1 receptor in regulating metabolism, leading her to file a patent and pursue the development of TRPV1 antagonists for obesity and related conditions. 

The company has received enough attention from investors that it witnessed a triple-digit percentage gain on the Nasdaq First North stock exchange in 2024.

While XEN-D0501 shows promise, researchers urge caution, as the drug is still in early development. “There is simply no quality human data to say anything about the possibilities for this pathway,” said John B. Dixon, PhD, professor at Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Australia.

 

What Is TRPV1 and How Do TRPV1 Modulators Work? 

TRPV1 is a homotetrameric receptor with six transmembrane domains expressed primarily in sensory nerve fibers. It is responsible for detecting noxious signals, including heat and chemical irritants — particularly capsaicin, the active component of chili peppers.

TRPV1 mediates the sensation of burning pain, often associated with inflammation and heat exposure. It also helps detect and regulate body temperature and influences the release of inflammatory mediators. In the central nervous system, it affects synaptic function and plasticity.

Given TRPV1’s broad physiologic role, its modulation has potential for treating several conditions, including pain disorders, inflammation, and cardiovascular diseases. 

Studies have shown that activating TRPV1 can help counter diet-induced obesity by increasing thermogenesis in brown adipose tissue and improving metabolic activity. TRPV1 agonists such as capsaicin have been shown to reduce weight gain in high-fat-diet‒induced obese mice, with clinical trials further supporting its potential for decreasing body weight in people with overweight. 

For instance, a clinical trial showed that participants with obesity taking capsinoid supplementation for 12 weeks experienced a reduction in body weight compared with those who took a placebo. 

While TRPV1 agonists have been more commonly studied for obesity management, most studies involving antagonists have focused on pain relief, inflammation, and conditions like erythromelalgia rather than weight loss. 

However, some evidence suggests that TRPV1 antagonism may influence metabolism. For example, in one study, mice lacking TRPV1 were resistant to obesity, “but that is not sufficient [to come to any conclusion],” said Vincenzo Di Marzo, PhD, director of the Joint International Research Unit for the Chemical and Biomolecular Study of the Microbiome in Metabolic Health and Nutrition between the Consiglio Nazionale delle Ricerche, Italy, and Université Laval, Quebec City, Canada. He was not involved in the study.

Gram admits that the picture around the mechanism of action of TRPV1 modulators is unclear. “There is not a consensus in the literature about the effect of this receptor. Should it be agonized or should it be antagonized?” she said. 

 

What Is XEN-D0501?

XEN-D0501 is a novel selective TRPV1 antagonist, which Pila Pharma is developing for treating erythromelalgia, a rare condition that causes burning pain, redness, and hotness in the skin, especially the feet. It has received orphan-drug status for this indication in the United States. 

Initially, the company explored XEN-D0501 for treating overactive bladder, but the development of the drug for this condition has been discontinued. Now, attention has moved to investigating XEN-D0501 for its potential in treating type 2 diabetes, obesity, and cardiovascular disease.

Although phase 2a clinical trials showed that XEN-D0501 is generally well tolerated in healthy participants, it has been associated with several side effects, including hyperthermia and oral discomfort, thought to be due to TRPV1 antagonism at sensory nerve endings in the mouth, in addition to transient urinary retention and postvoiding residual volumes, indicating potential issues with bladder function.

Another phase 2a trial (PP-CT03) is planned to assess the maximum tolerable dose of XEN-D0501 in people with obesity and type 2 diabetes, focusing on safety and potential effects on body weight. Gram said that early data show these populations experience less hyperthermia than healthy participants. However, the mechanism behind it is still not understood. These studies also showed some positive effects on insulin sensitivity and a biomarker for heart failure.

“The company data provided so far for XEN-D0501 are promising but still too preliminary,” said Di Marzo.

The company is now planning a further 3-month-long dose-escalation study in people with obesity and diabetes. “If these studies show that the molecule is as efficacious and safe as we think it is, then it would make life a lot better for a lot of people because it is a tablet, not an injectable,” Gram said.

Also being explored by the company is the potential of the molecule for treating cardiovascular diseases, particularly abdominal aortic aneurysms, and as a potential nonopioid painkiller. 

Dixon and Di Marzo disclosed no relevant financial relationships. Gram is founder and CSO at Pila Pharma.

A version of this article appeared on Medscape.com.

XEN-D0501, a transient receptor potential vanilloid 1 (TRPV1) antagonist, is gaining attention for its potential as an oral tablet to treat type 2 diabetes, obesity, and cardiovascular diseases. Dorte X. Gram, PhD, founder of Pila Pharma, a Swedish pharmaceutical company investigating XEN-D0501, first noticed the connection more than 20 years ago as a researcher at Novo Nordisk. 

“In my very first experiments, I noticed that mice who would normally become diabetic didn’t get diabetes at all,” she said in an interview.

These surprising observations prompted Gram to investigate further the potential role of the TRPV1 receptor in regulating metabolism, leading her to file a patent and pursue the development of TRPV1 antagonists for obesity and related conditions. 

The company has received enough attention from investors that it witnessed a triple-digit percentage gain on the Nasdaq First North stock exchange in 2024.

While XEN-D0501 shows promise, researchers urge caution, as the drug is still in early development. “There is simply no quality human data to say anything about the possibilities for this pathway,” said John B. Dixon, PhD, professor at Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Australia.

 

What Is TRPV1 and How Do TRPV1 Modulators Work? 

TRPV1 is a homotetrameric receptor with six transmembrane domains expressed primarily in sensory nerve fibers. It is responsible for detecting noxious signals, including heat and chemical irritants — particularly capsaicin, the active component of chili peppers.

TRPV1 mediates the sensation of burning pain, often associated with inflammation and heat exposure. It also helps detect and regulate body temperature and influences the release of inflammatory mediators. In the central nervous system, it affects synaptic function and plasticity.

Given TRPV1’s broad physiologic role, its modulation has potential for treating several conditions, including pain disorders, inflammation, and cardiovascular diseases. 

Studies have shown that activating TRPV1 can help counter diet-induced obesity by increasing thermogenesis in brown adipose tissue and improving metabolic activity. TRPV1 agonists such as capsaicin have been shown to reduce weight gain in high-fat-diet‒induced obese mice, with clinical trials further supporting its potential for decreasing body weight in people with overweight. 

For instance, a clinical trial showed that participants with obesity taking capsinoid supplementation for 12 weeks experienced a reduction in body weight compared with those who took a placebo. 

While TRPV1 agonists have been more commonly studied for obesity management, most studies involving antagonists have focused on pain relief, inflammation, and conditions like erythromelalgia rather than weight loss. 

However, some evidence suggests that TRPV1 antagonism may influence metabolism. For example, in one study, mice lacking TRPV1 were resistant to obesity, “but that is not sufficient [to come to any conclusion],” said Vincenzo Di Marzo, PhD, director of the Joint International Research Unit for the Chemical and Biomolecular Study of the Microbiome in Metabolic Health and Nutrition between the Consiglio Nazionale delle Ricerche, Italy, and Université Laval, Quebec City, Canada. He was not involved in the study.

Gram admits that the picture around the mechanism of action of TRPV1 modulators is unclear. “There is not a consensus in the literature about the effect of this receptor. Should it be agonized or should it be antagonized?” she said. 

 

What Is XEN-D0501?

XEN-D0501 is a novel selective TRPV1 antagonist, which Pila Pharma is developing for treating erythromelalgia, a rare condition that causes burning pain, redness, and hotness in the skin, especially the feet. It has received orphan-drug status for this indication in the United States. 

Initially, the company explored XEN-D0501 for treating overactive bladder, but the development of the drug for this condition has been discontinued. Now, attention has moved to investigating XEN-D0501 for its potential in treating type 2 diabetes, obesity, and cardiovascular disease.

Although phase 2a clinical trials showed that XEN-D0501 is generally well tolerated in healthy participants, it has been associated with several side effects, including hyperthermia and oral discomfort, thought to be due to TRPV1 antagonism at sensory nerve endings in the mouth, in addition to transient urinary retention and postvoiding residual volumes, indicating potential issues with bladder function.

Another phase 2a trial (PP-CT03) is planned to assess the maximum tolerable dose of XEN-D0501 in people with obesity and type 2 diabetes, focusing on safety and potential effects on body weight. Gram said that early data show these populations experience less hyperthermia than healthy participants. However, the mechanism behind it is still not understood. These studies also showed some positive effects on insulin sensitivity and a biomarker for heart failure.

“The company data provided so far for XEN-D0501 are promising but still too preliminary,” said Di Marzo.

The company is now planning a further 3-month-long dose-escalation study in people with obesity and diabetes. “If these studies show that the molecule is as efficacious and safe as we think it is, then it would make life a lot better for a lot of people because it is a tablet, not an injectable,” Gram said.

Also being explored by the company is the potential of the molecule for treating cardiovascular diseases, particularly abdominal aortic aneurysms, and as a potential nonopioid painkiller. 

Dixon and Di Marzo disclosed no relevant financial relationships. Gram is founder and CSO at Pila Pharma.

A version of this article appeared on Medscape.com.

XEN-D0501, a transient receptor potential vanilloid 1 (TRPV1) antagonist, is gaining attention for its potential as an oral tablet to treat type 2 diabetes, obesity, and cardiovascular diseases. Dorte X. Gram, PhD, founder of Pila Pharma, a Swedish pharmaceutical company investigating XEN-D0501, first noticed the connection more than 20 years ago as a researcher at Novo Nordisk. 

“In my very first experiments, I noticed that mice who would normally become diabetic didn’t get diabetes at all,” she said in an interview.

These surprising observations prompted Gram to investigate further the potential role of the TRPV1 receptor in regulating metabolism, leading her to file a patent and pursue the development of TRPV1 antagonists for obesity and related conditions. 

The company has received enough attention from investors that it witnessed a triple-digit percentage gain on the Nasdaq First North stock exchange in 2024.

While XEN-D0501 shows promise, researchers urge caution, as the drug is still in early development. “There is simply no quality human data to say anything about the possibilities for this pathway,” said John B. Dixon, PhD, professor at Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Australia.

 

What Is TRPV1 and How Do TRPV1 Modulators Work? 

TRPV1 is a homotetrameric receptor with six transmembrane domains expressed primarily in sensory nerve fibers. It is responsible for detecting noxious signals, including heat and chemical irritants — particularly capsaicin, the active component of chili peppers.

TRPV1 mediates the sensation of burning pain, often associated with inflammation and heat exposure. It also helps detect and regulate body temperature and influences the release of inflammatory mediators. In the central nervous system, it affects synaptic function and plasticity.

Given TRPV1’s broad physiologic role, its modulation has potential for treating several conditions, including pain disorders, inflammation, and cardiovascular diseases. 

Studies have shown that activating TRPV1 can help counter diet-induced obesity by increasing thermogenesis in brown adipose tissue and improving metabolic activity. TRPV1 agonists such as capsaicin have been shown to reduce weight gain in high-fat-diet‒induced obese mice, with clinical trials further supporting its potential for decreasing body weight in people with overweight. 

For instance, a clinical trial showed that participants with obesity taking capsinoid supplementation for 12 weeks experienced a reduction in body weight compared with those who took a placebo. 

While TRPV1 agonists have been more commonly studied for obesity management, most studies involving antagonists have focused on pain relief, inflammation, and conditions like erythromelalgia rather than weight loss. 

However, some evidence suggests that TRPV1 antagonism may influence metabolism. For example, in one study, mice lacking TRPV1 were resistant to obesity, “but that is not sufficient [to come to any conclusion],” said Vincenzo Di Marzo, PhD, director of the Joint International Research Unit for the Chemical and Biomolecular Study of the Microbiome in Metabolic Health and Nutrition between the Consiglio Nazionale delle Ricerche, Italy, and Université Laval, Quebec City, Canada. He was not involved in the study.

Gram admits that the picture around the mechanism of action of TRPV1 modulators is unclear. “There is not a consensus in the literature about the effect of this receptor. Should it be agonized or should it be antagonized?” she said. 

 

What Is XEN-D0501?

XEN-D0501 is a novel selective TRPV1 antagonist, which Pila Pharma is developing for treating erythromelalgia, a rare condition that causes burning pain, redness, and hotness in the skin, especially the feet. It has received orphan-drug status for this indication in the United States. 

Initially, the company explored XEN-D0501 for treating overactive bladder, but the development of the drug for this condition has been discontinued. Now, attention has moved to investigating XEN-D0501 for its potential in treating type 2 diabetes, obesity, and cardiovascular disease.

Although phase 2a clinical trials showed that XEN-D0501 is generally well tolerated in healthy participants, it has been associated with several side effects, including hyperthermia and oral discomfort, thought to be due to TRPV1 antagonism at sensory nerve endings in the mouth, in addition to transient urinary retention and postvoiding residual volumes, indicating potential issues with bladder function.

Another phase 2a trial (PP-CT03) is planned to assess the maximum tolerable dose of XEN-D0501 in people with obesity and type 2 diabetes, focusing on safety and potential effects on body weight. Gram said that early data show these populations experience less hyperthermia than healthy participants. However, the mechanism behind it is still not understood. These studies also showed some positive effects on insulin sensitivity and a biomarker for heart failure.

“The company data provided so far for XEN-D0501 are promising but still too preliminary,” said Di Marzo.

The company is now planning a further 3-month-long dose-escalation study in people with obesity and diabetes. “If these studies show that the molecule is as efficacious and safe as we think it is, then it would make life a lot better for a lot of people because it is a tablet, not an injectable,” Gram said.

Also being explored by the company is the potential of the molecule for treating cardiovascular diseases, particularly abdominal aortic aneurysms, and as a potential nonopioid painkiller. 

Dixon and Di Marzo disclosed no relevant financial relationships. Gram is founder and CSO at Pila Pharma.

A version of this article appeared on Medscape.com.

Clinicians frequently reach out to Catherine Varney, DO, asking if it’s safe to prescribe glucagon-like peptide 1 receptor agonists (GLP-1 RAs) to patients with thyroid disorders, such as hypothyroidism, goiter, hyperthyroidism, and nodules.

The concerns often stem from prior animal studies that revealed a link between the medications and abnormal alterations in thyroid C cells.

“What physicians need to understand is that the increased risk of thyroid cancers is specifically in those with a personal or family history of multiple endocrine neoplasia 2 (MEN2) syndrome or medullary thyroid carcinoma [MTC],” said Varney, an assistant professor of family medicine at the University of Virginia (UVA) and obesity medicine director for UVA Health, both in Charlottesville.

MTC is a common manifestation of the MEN2 syndrome, a genetic disorder that affects the endocrine glands and can cause tumors in the thyroid gland. However, MTC is very rare, making up only 3%-5% of all thyroid cancers, Varney said.

More common types of thyroid cancers, such as papillary thyroid cancer, are not contraindications to GLP-1 RAs, said Laura Davisson, MD, MPH, a professor of medicine and director of Medical Weight Management at West Virginia University, Morgantown. Papillary thyroid cancer makes up about 80% of all thyroid cancers.

If physicians are thinking about prescribing GLP-1 RAs, it’s important to learn the specific types of thyroid disorders in a patient or in their family history, Davisson said. A history of thyroid conditions, such as Graves disease, Hashimoto thyroiditis, or disorders requiring a patient to take thyroid medicine, such as levothyroxine, does not preclude a person from taking GLP-1 RAs.

If a patient does not know their family history, then a discussion about whether GLP-1 RAs are right for them should take place, Davisson said.

“They should take into consideration the risks and benefits of the medicine, and the fact that medullary thyroid cancer and MEN2 syndrome are rare, making the chances of them running in their family low,” she said. “If the patient understands the risks, they may decide the potential benefits may outweigh the risks.”

Keep in mind that the elevated risk for medullary thyroid carcinoma has not been clearly demonstrated in humans during clinical trials, only in rodents, Varney added. Rodents are more likely to develop thyroid cancer after exposure to a GLP-1 RA because rodents have higher numbers of GLP-1 receptors in their thyroid cells.

The risk for thyroid cancer is also dose dependent, and the amount of GLP-1 RA that induced thyroid tumors in the rodents was 8-60 times higher than that given to humans, Varney said.

“Nonetheless, there have been case reports of MTC in humans after taking GLP-1 RA,” she said.

 

What About GLP-1 RAs and Pancreatitis?

Pancreatitis is another condition that requires consideration when it comes to prescribing GLP-1 RAs.

While some studies show that GLP-1 RA analogs can increase the risk for pancreatitis, it’s important to know the reason behind pancreatitis before making a prescription decision, said Anila Chadha, MD, a family physician and obesity medicine physician at Dignity Health in Bakersfield, California.

If the pancreatitis is caused by alcohol or is medication induced, GLP-1 RAs are not recommended, Chadha said. If gallbladder stones are behind the pancreatitis, that’s different.

“If a patient has a well-documented history of gallstone-induced pancreatitis and the patient has had a cholecystectomy, it would be OK to prescribe GLP-1 [medications] after shared decision-making with the patient,” she said.

Some patients worry about taking GLP-1 RAs if they have other types of pancreatic disease beyond pancreatitis, said Davisson, but guidelines do not identify conditions such as pancreatic cysts or a family history of pancreatic cancer as contraindications to GLP-1 RAs.

However, be mindful that GLP-1 RA medications can increase gallbladder disease, Chadha said. A 2022 analysis in JAMA Internal Medicine, for example, found that the use of GLP-1 RAs was associated with an increased risk for gallbladder or biliary diseases, especially when used at higher doses, for longer durations, and for weight loss.

If a history of gallstones is present, physicians should tell patients that GLP-1 RA analogs can increase biliary colic, chances of cholecystitis, or even cholecystitis, Chadha said.

Gallbladder disease itself is not a contraindication, she said, but these patients can experience more disease complications when taking GLP-1 RAs.

Varney recently treated a middle-aged female patient who experienced biliary colic after taking a GLP-1 RA medication. The patient had a starting body mass index (BMI) of about 45 and lost 24% of her starting weight over 12 months using a combination of strengthening and cardiovascular training; a reduced-calorie, high-protein diet; and semaglutide for weight loss, Varney said.

The patient began developing upper gastrointestinal symptoms, including mild biliary colic, without concerning lab findings. An ultrasound revealed that she had new gallstones, compared with an ultrasound a few years prior. Varney started the patient on ursodeoxycholic acid, and over the course of 6 weeks, the patient’s symptoms gradually improved and eventually resolved.

“In a situation like this, many physicians might have discontinued the obesity medication, potentially deciding not to restart it due to the symptoms she was experiencing,” Varney said. “However, I believe it’s important to recognize that these medications offer far more than just weight loss benefits. The positive effects extend to cardiovascular, metabolic, and mental health, which are often overlooked when the focus is solely on the number on the scale or BMI.”

Other medical conditions that GLP-1 RAs may exacerbate include gastroparesis and diabetic retinopathy, Chadha noted. GLP-1 RA drugs can worsen these conditions and are not recommended for patients with such a history.

Nor are GLP-1 RA medications a good idea for patients struggling with severe constipation.

“It is very difficult to tolerate these medications because it can make constipation worse,” Chadha said. “In addition, if a patient struggles with severe heartburn, it can make the tolerability of these medications difficult.”

 

What Patients Should Know Before Using GLP-1 RAs

Not every overweight patient is a good candidate for GLP-1 RAs, and it’s important that doctors explain why the medications may not be right for them, Davisson said.

“If a patient only has a few pounds to lose (15-20 lb) and does not accept that these medications are intended to be a long-term treatment for the chronic diseases of diabetes or obesity, then they might not be a good candidate for the medication,” Davisson said.

Also essential is making sure patients are willing to follow appropriate healthy eating guidelines when on the medications, including getting enough protein and produce to maintain lean body mass and the necessary fiber to keep bowel habits regular.

Varney often hears concerns from physicians about the long-term effects of GLP-1 RAs. She said this class of medications has been used for nearly 20 years to treat type 2 diabetes, and the data over the past two decades have shown that the benefits of GLP-1 RAs far outweigh the risks for most patients.

Recent studies have also highlighted significant long-term benefits, including a marked reduction in cardiovascular events, heart failure, and kidney disease, she said.

“These outcomes underscore the effectiveness and safety of GLP-1 RAs not just for obesity treatment but for improving overall health, particularly in high-risk populations,” she said. “As physicians, it’s crucial to consider this extensive body of evidence when evaluating the use of these medications for patients, especially when the potential health benefits extend well beyond weight loss alone.”

A version of this article first appeared on Medscape.com.

Clinicians frequently reach out to Catherine Varney, DO, asking if it’s safe to prescribe glucagon-like peptide 1 receptor agonists (GLP-1 RAs) to patients with thyroid disorders, such as hypothyroidism, goiter, hyperthyroidism, and nodules.

The concerns often stem from prior animal studies that revealed a link between the medications and abnormal alterations in thyroid C cells.

“What physicians need to understand is that the increased risk of thyroid cancers is specifically in those with a personal or family history of multiple endocrine neoplasia 2 (MEN2) syndrome or medullary thyroid carcinoma [MTC],” said Varney, an assistant professor of family medicine at the University of Virginia (UVA) and obesity medicine director for UVA Health, both in Charlottesville.

MTC is a common manifestation of the MEN2 syndrome, a genetic disorder that affects the endocrine glands and can cause tumors in the thyroid gland. However, MTC is very rare, making up only 3%-5% of all thyroid cancers, Varney said.

More common types of thyroid cancers, such as papillary thyroid cancer, are not contraindications to GLP-1 RAs, said Laura Davisson, MD, MPH, a professor of medicine and director of Medical Weight Management at West Virginia University, Morgantown. Papillary thyroid cancer makes up about 80% of all thyroid cancers.

If physicians are thinking about prescribing GLP-1 RAs, it’s important to learn the specific types of thyroid disorders in a patient or in their family history, Davisson said. A history of thyroid conditions, such as Graves disease, Hashimoto thyroiditis, or disorders requiring a patient to take thyroid medicine, such as levothyroxine, does not preclude a person from taking GLP-1 RAs.

If a patient does not know their family history, then a discussion about whether GLP-1 RAs are right for them should take place, Davisson said.

“They should take into consideration the risks and benefits of the medicine, and the fact that medullary thyroid cancer and MEN2 syndrome are rare, making the chances of them running in their family low,” she said. “If the patient understands the risks, they may decide the potential benefits may outweigh the risks.”

Keep in mind that the elevated risk for medullary thyroid carcinoma has not been clearly demonstrated in humans during clinical trials, only in rodents, Varney added. Rodents are more likely to develop thyroid cancer after exposure to a GLP-1 RA because rodents have higher numbers of GLP-1 receptors in their thyroid cells.

The risk for thyroid cancer is also dose dependent, and the amount of GLP-1 RA that induced thyroid tumors in the rodents was 8-60 times higher than that given to humans, Varney said.

“Nonetheless, there have been case reports of MTC in humans after taking GLP-1 RA,” she said.

 

What About GLP-1 RAs and Pancreatitis?

Pancreatitis is another condition that requires consideration when it comes to prescribing GLP-1 RAs.

While some studies show that GLP-1 RA analogs can increase the risk for pancreatitis, it’s important to know the reason behind pancreatitis before making a prescription decision, said Anila Chadha, MD, a family physician and obesity medicine physician at Dignity Health in Bakersfield, California.

If the pancreatitis is caused by alcohol or is medication induced, GLP-1 RAs are not recommended, Chadha said. If gallbladder stones are behind the pancreatitis, that’s different.

“If a patient has a well-documented history of gallstone-induced pancreatitis and the patient has had a cholecystectomy, it would be OK to prescribe GLP-1 [medications] after shared decision-making with the patient,” she said.

Some patients worry about taking GLP-1 RAs if they have other types of pancreatic disease beyond pancreatitis, said Davisson, but guidelines do not identify conditions such as pancreatic cysts or a family history of pancreatic cancer as contraindications to GLP-1 RAs.

However, be mindful that GLP-1 RA medications can increase gallbladder disease, Chadha said. A 2022 analysis in JAMA Internal Medicine, for example, found that the use of GLP-1 RAs was associated with an increased risk for gallbladder or biliary diseases, especially when used at higher doses, for longer durations, and for weight loss.

If a history of gallstones is present, physicians should tell patients that GLP-1 RA analogs can increase biliary colic, chances of cholecystitis, or even cholecystitis, Chadha said.

Gallbladder disease itself is not a contraindication, she said, but these patients can experience more disease complications when taking GLP-1 RAs.

Varney recently treated a middle-aged female patient who experienced biliary colic after taking a GLP-1 RA medication. The patient had a starting body mass index (BMI) of about 45 and lost 24% of her starting weight over 12 months using a combination of strengthening and cardiovascular training; a reduced-calorie, high-protein diet; and semaglutide for weight loss, Varney said.

The patient began developing upper gastrointestinal symptoms, including mild biliary colic, without concerning lab findings. An ultrasound revealed that she had new gallstones, compared with an ultrasound a few years prior. Varney started the patient on ursodeoxycholic acid, and over the course of 6 weeks, the patient’s symptoms gradually improved and eventually resolved.

“In a situation like this, many physicians might have discontinued the obesity medication, potentially deciding not to restart it due to the symptoms she was experiencing,” Varney said. “However, I believe it’s important to recognize that these medications offer far more than just weight loss benefits. The positive effects extend to cardiovascular, metabolic, and mental health, which are often overlooked when the focus is solely on the number on the scale or BMI.”

Other medical conditions that GLP-1 RAs may exacerbate include gastroparesis and diabetic retinopathy, Chadha noted. GLP-1 RA drugs can worsen these conditions and are not recommended for patients with such a history.

Nor are GLP-1 RA medications a good idea for patients struggling with severe constipation.

“It is very difficult to tolerate these medications because it can make constipation worse,” Chadha said. “In addition, if a patient struggles with severe heartburn, it can make the tolerability of these medications difficult.”

 

What Patients Should Know Before Using GLP-1 RAs

Not every overweight patient is a good candidate for GLP-1 RAs, and it’s important that doctors explain why the medications may not be right for them, Davisson said.

“If a patient only has a few pounds to lose (15-20 lb) and does not accept that these medications are intended to be a long-term treatment for the chronic diseases of diabetes or obesity, then they might not be a good candidate for the medication,” Davisson said.

Also essential is making sure patients are willing to follow appropriate healthy eating guidelines when on the medications, including getting enough protein and produce to maintain lean body mass and the necessary fiber to keep bowel habits regular.

Varney often hears concerns from physicians about the long-term effects of GLP-1 RAs. She said this class of medications has been used for nearly 20 years to treat type 2 diabetes, and the data over the past two decades have shown that the benefits of GLP-1 RAs far outweigh the risks for most patients.

Recent studies have also highlighted significant long-term benefits, including a marked reduction in cardiovascular events, heart failure, and kidney disease, she said.

“These outcomes underscore the effectiveness and safety of GLP-1 RAs not just for obesity treatment but for improving overall health, particularly in high-risk populations,” she said. “As physicians, it’s crucial to consider this extensive body of evidence when evaluating the use of these medications for patients, especially when the potential health benefits extend well beyond weight loss alone.”

A version of this article first appeared on Medscape.com.

Clinicians frequently reach out to Catherine Varney, DO, asking if it’s safe to prescribe glucagon-like peptide 1 receptor agonists (GLP-1 RAs) to patients with thyroid disorders, such as hypothyroidism, goiter, hyperthyroidism, and nodules.

The concerns often stem from prior animal studies that revealed a link between the medications and abnormal alterations in thyroid C cells.

“What physicians need to understand is that the increased risk of thyroid cancers is specifically in those with a personal or family history of multiple endocrine neoplasia 2 (MEN2) syndrome or medullary thyroid carcinoma [MTC],” said Varney, an assistant professor of family medicine at the University of Virginia (UVA) and obesity medicine director for UVA Health, both in Charlottesville.

MTC is a common manifestation of the MEN2 syndrome, a genetic disorder that affects the endocrine glands and can cause tumors in the thyroid gland. However, MTC is very rare, making up only 3%-5% of all thyroid cancers, Varney said.

More common types of thyroid cancers, such as papillary thyroid cancer, are not contraindications to GLP-1 RAs, said Laura Davisson, MD, MPH, a professor of medicine and director of Medical Weight Management at West Virginia University, Morgantown. Papillary thyroid cancer makes up about 80% of all thyroid cancers.

If physicians are thinking about prescribing GLP-1 RAs, it’s important to learn the specific types of thyroid disorders in a patient or in their family history, Davisson said. A history of thyroid conditions, such as Graves disease, Hashimoto thyroiditis, or disorders requiring a patient to take thyroid medicine, such as levothyroxine, does not preclude a person from taking GLP-1 RAs.

If a patient does not know their family history, then a discussion about whether GLP-1 RAs are right for them should take place, Davisson said.

“They should take into consideration the risks and benefits of the medicine, and the fact that medullary thyroid cancer and MEN2 syndrome are rare, making the chances of them running in their family low,” she said. “If the patient understands the risks, they may decide the potential benefits may outweigh the risks.”

Keep in mind that the elevated risk for medullary thyroid carcinoma has not been clearly demonstrated in humans during clinical trials, only in rodents, Varney added. Rodents are more likely to develop thyroid cancer after exposure to a GLP-1 RA because rodents have higher numbers of GLP-1 receptors in their thyroid cells.

The risk for thyroid cancer is also dose dependent, and the amount of GLP-1 RA that induced thyroid tumors in the rodents was 8-60 times higher than that given to humans, Varney said.

“Nonetheless, there have been case reports of MTC in humans after taking GLP-1 RA,” she said.

 

What About GLP-1 RAs and Pancreatitis?

Pancreatitis is another condition that requires consideration when it comes to prescribing GLP-1 RAs.

While some studies show that GLP-1 RA analogs can increase the risk for pancreatitis, it’s important to know the reason behind pancreatitis before making a prescription decision, said Anila Chadha, MD, a family physician and obesity medicine physician at Dignity Health in Bakersfield, California.

If the pancreatitis is caused by alcohol or is medication induced, GLP-1 RAs are not recommended, Chadha said. If gallbladder stones are behind the pancreatitis, that’s different.

“If a patient has a well-documented history of gallstone-induced pancreatitis and the patient has had a cholecystectomy, it would be OK to prescribe GLP-1 [medications] after shared decision-making with the patient,” she said.

Some patients worry about taking GLP-1 RAs if they have other types of pancreatic disease beyond pancreatitis, said Davisson, but guidelines do not identify conditions such as pancreatic cysts or a family history of pancreatic cancer as contraindications to GLP-1 RAs.

However, be mindful that GLP-1 RA medications can increase gallbladder disease, Chadha said. A 2022 analysis in JAMA Internal Medicine, for example, found that the use of GLP-1 RAs was associated with an increased risk for gallbladder or biliary diseases, especially when used at higher doses, for longer durations, and for weight loss.

If a history of gallstones is present, physicians should tell patients that GLP-1 RA analogs can increase biliary colic, chances of cholecystitis, or even cholecystitis, Chadha said.

Gallbladder disease itself is not a contraindication, she said, but these patients can experience more disease complications when taking GLP-1 RAs.

Varney recently treated a middle-aged female patient who experienced biliary colic after taking a GLP-1 RA medication. The patient had a starting body mass index (BMI) of about 45 and lost 24% of her starting weight over 12 months using a combination of strengthening and cardiovascular training; a reduced-calorie, high-protein diet; and semaglutide for weight loss, Varney said.

The patient began developing upper gastrointestinal symptoms, including mild biliary colic, without concerning lab findings. An ultrasound revealed that she had new gallstones, compared with an ultrasound a few years prior. Varney started the patient on ursodeoxycholic acid, and over the course of 6 weeks, the patient’s symptoms gradually improved and eventually resolved.

“In a situation like this, many physicians might have discontinued the obesity medication, potentially deciding not to restart it due to the symptoms she was experiencing,” Varney said. “However, I believe it’s important to recognize that these medications offer far more than just weight loss benefits. The positive effects extend to cardiovascular, metabolic, and mental health, which are often overlooked when the focus is solely on the number on the scale or BMI.”

Other medical conditions that GLP-1 RAs may exacerbate include gastroparesis and diabetic retinopathy, Chadha noted. GLP-1 RA drugs can worsen these conditions and are not recommended for patients with such a history.

Nor are GLP-1 RA medications a good idea for patients struggling with severe constipation.

“It is very difficult to tolerate these medications because it can make constipation worse,” Chadha said. “In addition, if a patient struggles with severe heartburn, it can make the tolerability of these medications difficult.”

 

What Patients Should Know Before Using GLP-1 RAs

Not every overweight patient is a good candidate for GLP-1 RAs, and it’s important that doctors explain why the medications may not be right for them, Davisson said.

“If a patient only has a few pounds to lose (15-20 lb) and does not accept that these medications are intended to be a long-term treatment for the chronic diseases of diabetes or obesity, then they might not be a good candidate for the medication,” Davisson said.

Also essential is making sure patients are willing to follow appropriate healthy eating guidelines when on the medications, including getting enough protein and produce to maintain lean body mass and the necessary fiber to keep bowel habits regular.

Varney often hears concerns from physicians about the long-term effects of GLP-1 RAs. She said this class of medications has been used for nearly 20 years to treat type 2 diabetes, and the data over the past two decades have shown that the benefits of GLP-1 RAs far outweigh the risks for most patients.

Recent studies have also highlighted significant long-term benefits, including a marked reduction in cardiovascular events, heart failure, and kidney disease, she said.

“These outcomes underscore the effectiveness and safety of GLP-1 RAs not just for obesity treatment but for improving overall health, particularly in high-risk populations,” she said. “As physicians, it’s crucial to consider this extensive body of evidence when evaluating the use of these medications for patients, especially when the potential health benefits extend well beyond weight loss alone.”

A version of this article first appeared on Medscape.com.

Interventions during holidays and school vacations can help prevent children and adults gaining weight, according to a recent systematic review and meta-analysis published in Obesity Reviews.

Evidence suggests that certain times of the year, such as the Christmas holidays and summer vacations, are associated with weight gain. In adults, up to 50% of the total annual weight gain occurs during December.

In 2023, the United Nations Children’s Fund reported that more than four million children younger than 5 years and nearly 50 million children and adolescents aged 5-19 years in Latin America and the Caribbean were affected by overweight. Among adults, more than 50% of individuals in every country in the region live with obesity.

These alarming figures call for urgent action from governments, healthcare professionals, and multidisciplinary teams to implement prevention strategies and promote further research.

 

Study Significance

Michelle Maree Haby de Sosa, PhD, an epidemiologist and researcher at the Department of Chemical-Biological and Nutritional Sciences at the University of Sonora, Hermosillo, Mexico, led the study. She explained that the research team first conducted a narrative review on weight gain during the festive season. “We found that the 6 weeks between December and mid-January represent a critical period when people gain half the weight they put on all year. This highlights the importance of addressing obesity and overweight by promoting lifestyle changes and prevention strategies to tackle this public health issue.”

The researchers then conducted a systematic review of global interventions not only to publish findings but also to educate healthcare professionals and stakeholders. They searched databases such as Medline, EMBASE, PsycINFO, SciELO, LILACS, and Cochrane, focusing on randomized controlled trials. These were supplemented with gray literature and references from relevant articles, as well as additional data requested from study authors.

 

Key Findings

The review included studies from the United States (10), the United Kingdom (one), and Chile (one). Of these, two had a low risk for bias, two moderate, seven high, and one critical.

Most interventions targeted school-aged children or adults. According to Haby de Sosa, achieving consistent results in adolescents was challenging due to the difficulty of changing behaviors in this age group. In contrast, interventions for school-aged children were implemented primarily during day camp visits, where participants were divided into control and intervention groups.

The interventions included nutrition classes, physical activity, and the provision of healthy meals, which resulted in less weight gain compared with control groups.

In children, the meta-analysis of four of seven studies conducted during summer vacations (six interventions) found a small but significant reduction in body mass index z-scores in the intervention group (−0.06; 95% CI, −0.10 to −0.01; P = .01; I² = 0%; very low-certainty evidence).

Among adults, interventions also generally proved effective, despite variations in implementation. A meta-analysis of five studies involving 462 participants (234 intervention, 228 control) showed a slight reduction in body weight (−0.99 kg; 95% CI, −2.15 to 0.18; P = 0.10; I² = 89%).

Three key intervention areas were identified: Nutrition, physical activity, and psychological support including behavioral and cognitive elements. Strict diets were generally not a priority; instead, participants were advised to reduce consumption of high-calorie food and sugary beverages while increasing their intake of vegetables.

 

Promising Interventions

The study highlighted specific interventions for children and adults:

• Children: 6- to 8-week summer camps with daily physical activities such as sports and crafts, complemented by free, nutritious meals.
• Adults: Daily weight monitoring paired with nutrition counseling based on social cognitive theory. Interventions lasted 4 to 8 weeks, spanning mid-November to early January.

Expert Recommendations

Carlos Cristi-Montero, PhD, a researcher at Pontificia Universidad Católica de Valparaíso, Chile, and an author of a Chilean intervention study, shared insights with this news organization.

He emphasized the importance of portion control for children. “During the holidays, families prepare calorie-rich dishes but often fail to consider portion sizes,” he noted. “Children are treated like adults, which contributes to excessive caloric intake. Our interventions focused on teaching people about portion control, the caloric content of their meals, and the risks of overweight and obesity, as well as the benefits of healthy eating.”

He also stressed the importance of evaluating not just weight but body composition, using tools like dual-energy x-ray absorptiometry to measure fat and muscle mass.

Cristi-Montero also highlighted the importance of physical activity: “We emphasize the value of exercise and staying active as key strategies to prevent weight gain.”

 

Steps for Successful Interventions

Educating teachers and parents to reinforce healthy behaviors is also vital, according to Cristi-Montero, as obesity impacts not only metabolic health but also academic performance and mental health.

Both Haby de Sosa and Cristi-Montero agreed that primary care professionals have an important role in driving effective interventions, alongside participation in research to refine prevention strategies. Multidisciplinary teams — including nutritionists, psychologists, exercise specialists, teachers, and parents — can play a part in preventing weight gain during holidays.

 

Future Directions

The University of Sonora research team is currently conducting a controlled trial in Hermosillo, Mexico, involving adult participants divided into intervention and control groups. Preliminary results, already published online, highlight the effectiveness of strategies such as nutrition education, physical activity, regular weight goals, and psychological support in promoting habit changes.

“Interventions to prevent weight gain during the holidays and summer vacations are necessary,” the authors concluded, emphasizing the need for further research to evaluate their effectiveness in the region.

Haby de Sosa or Cristi-Montero declared no relevant financial conflicts of interest.

Natalia Martínez Medina, disclosed the following: Consultant or advisor for: AstraZeneca (former); Sanofi (former). Speaker or a member of a speaker’s bureau for: AstraZeneca (former); Sanofi (former). Research funding from: AstraZeneca (former); Sanofi (former). Contracted researcher for: AstraZeneca (former); Sanofi (former). Employee of: AstraZeneca (former); Sanofi (former).

This story was translated from Medscape’s Spanish edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Interventions during holidays and school vacations can help prevent children and adults gaining weight, according to a recent systematic review and meta-analysis published in Obesity Reviews.

Evidence suggests that certain times of the year, such as the Christmas holidays and summer vacations, are associated with weight gain. In adults, up to 50% of the total annual weight gain occurs during December.

In 2023, the United Nations Children’s Fund reported that more than four million children younger than 5 years and nearly 50 million children and adolescents aged 5-19 years in Latin America and the Caribbean were affected by overweight. Among adults, more than 50% of individuals in every country in the region live with obesity.

These alarming figures call for urgent action from governments, healthcare professionals, and multidisciplinary teams to implement prevention strategies and promote further research.

 

Study Significance

Michelle Maree Haby de Sosa, PhD, an epidemiologist and researcher at the Department of Chemical-Biological and Nutritional Sciences at the University of Sonora, Hermosillo, Mexico, led the study. She explained that the research team first conducted a narrative review on weight gain during the festive season. “We found that the 6 weeks between December and mid-January represent a critical period when people gain half the weight they put on all year. This highlights the importance of addressing obesity and overweight by promoting lifestyle changes and prevention strategies to tackle this public health issue.”

The researchers then conducted a systematic review of global interventions not only to publish findings but also to educate healthcare professionals and stakeholders. They searched databases such as Medline, EMBASE, PsycINFO, SciELO, LILACS, and Cochrane, focusing on randomized controlled trials. These were supplemented with gray literature and references from relevant articles, as well as additional data requested from study authors.

 

Key Findings

The review included studies from the United States (10), the United Kingdom (one), and Chile (one). Of these, two had a low risk for bias, two moderate, seven high, and one critical.

Most interventions targeted school-aged children or adults. According to Haby de Sosa, achieving consistent results in adolescents was challenging due to the difficulty of changing behaviors in this age group. In contrast, interventions for school-aged children were implemented primarily during day camp visits, where participants were divided into control and intervention groups.

The interventions included nutrition classes, physical activity, and the provision of healthy meals, which resulted in less weight gain compared with control groups.

In children, the meta-analysis of four of seven studies conducted during summer vacations (six interventions) found a small but significant reduction in body mass index z-scores in the intervention group (−0.06; 95% CI, −0.10 to −0.01; P = .01; I² = 0%; very low-certainty evidence).

Among adults, interventions also generally proved effective, despite variations in implementation. A meta-analysis of five studies involving 462 participants (234 intervention, 228 control) showed a slight reduction in body weight (−0.99 kg; 95% CI, −2.15 to 0.18; P = 0.10; I² = 89%).

Three key intervention areas were identified: Nutrition, physical activity, and psychological support including behavioral and cognitive elements. Strict diets were generally not a priority; instead, participants were advised to reduce consumption of high-calorie food and sugary beverages while increasing their intake of vegetables.

 

Promising Interventions

The study highlighted specific interventions for children and adults:

• Children: 6- to 8-week summer camps with daily physical activities such as sports and crafts, complemented by free, nutritious meals.
• Adults: Daily weight monitoring paired with nutrition counseling based on social cognitive theory. Interventions lasted 4 to 8 weeks, spanning mid-November to early January.

Expert Recommendations

Carlos Cristi-Montero, PhD, a researcher at Pontificia Universidad Católica de Valparaíso, Chile, and an author of a Chilean intervention study, shared insights with this news organization.

He emphasized the importance of portion control for children. “During the holidays, families prepare calorie-rich dishes but often fail to consider portion sizes,” he noted. “Children are treated like adults, which contributes to excessive caloric intake. Our interventions focused on teaching people about portion control, the caloric content of their meals, and the risks of overweight and obesity, as well as the benefits of healthy eating.”

He also stressed the importance of evaluating not just weight but body composition, using tools like dual-energy x-ray absorptiometry to measure fat and muscle mass.

Cristi-Montero also highlighted the importance of physical activity: “We emphasize the value of exercise and staying active as key strategies to prevent weight gain.”

 

Steps for Successful Interventions

Educating teachers and parents to reinforce healthy behaviors is also vital, according to Cristi-Montero, as obesity impacts not only metabolic health but also academic performance and mental health.

Both Haby de Sosa and Cristi-Montero agreed that primary care professionals have an important role in driving effective interventions, alongside participation in research to refine prevention strategies. Multidisciplinary teams — including nutritionists, psychologists, exercise specialists, teachers, and parents — can play a part in preventing weight gain during holidays.

 

Future Directions

The University of Sonora research team is currently conducting a controlled trial in Hermosillo, Mexico, involving adult participants divided into intervention and control groups. Preliminary results, already published online, highlight the effectiveness of strategies such as nutrition education, physical activity, regular weight goals, and psychological support in promoting habit changes.

“Interventions to prevent weight gain during the holidays and summer vacations are necessary,” the authors concluded, emphasizing the need for further research to evaluate their effectiveness in the region.

Haby de Sosa or Cristi-Montero declared no relevant financial conflicts of interest.

Natalia Martínez Medina, disclosed the following: Consultant or advisor for: AstraZeneca (former); Sanofi (former). Speaker or a member of a speaker’s bureau for: AstraZeneca (former); Sanofi (former). Research funding from: AstraZeneca (former); Sanofi (former). Contracted researcher for: AstraZeneca (former); Sanofi (former). Employee of: AstraZeneca (former); Sanofi (former).

This story was translated from Medscape’s Spanish edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Interventions during holidays and school vacations can help prevent children and adults gaining weight, according to a recent systematic review and meta-analysis published in Obesity Reviews.

Evidence suggests that certain times of the year, such as the Christmas holidays and summer vacations, are associated with weight gain. In adults, up to 50% of the total annual weight gain occurs during December.

In 2023, the United Nations Children’s Fund reported that more than four million children younger than 5 years and nearly 50 million children and adolescents aged 5-19 years in Latin America and the Caribbean were affected by overweight. Among adults, more than 50% of individuals in every country in the region live with obesity.

These alarming figures call for urgent action from governments, healthcare professionals, and multidisciplinary teams to implement prevention strategies and promote further research.

 

Study Significance

Michelle Maree Haby de Sosa, PhD, an epidemiologist and researcher at the Department of Chemical-Biological and Nutritional Sciences at the University of Sonora, Hermosillo, Mexico, led the study. She explained that the research team first conducted a narrative review on weight gain during the festive season. “We found that the 6 weeks between December and mid-January represent a critical period when people gain half the weight they put on all year. This highlights the importance of addressing obesity and overweight by promoting lifestyle changes and prevention strategies to tackle this public health issue.”

The researchers then conducted a systematic review of global interventions not only to publish findings but also to educate healthcare professionals and stakeholders. They searched databases such as Medline, EMBASE, PsycINFO, SciELO, LILACS, and Cochrane, focusing on randomized controlled trials. These were supplemented with gray literature and references from relevant articles, as well as additional data requested from study authors.

 

Key Findings

The review included studies from the United States (10), the United Kingdom (one), and Chile (one). Of these, two had a low risk for bias, two moderate, seven high, and one critical.

Most interventions targeted school-aged children or adults. According to Haby de Sosa, achieving consistent results in adolescents was challenging due to the difficulty of changing behaviors in this age group. In contrast, interventions for school-aged children were implemented primarily during day camp visits, where participants were divided into control and intervention groups.

The interventions included nutrition classes, physical activity, and the provision of healthy meals, which resulted in less weight gain compared with control groups.

In children, the meta-analysis of four of seven studies conducted during summer vacations (six interventions) found a small but significant reduction in body mass index z-scores in the intervention group (−0.06; 95% CI, −0.10 to −0.01; P = .01; I² = 0%; very low-certainty evidence).

Among adults, interventions also generally proved effective, despite variations in implementation. A meta-analysis of five studies involving 462 participants (234 intervention, 228 control) showed a slight reduction in body weight (−0.99 kg; 95% CI, −2.15 to 0.18; P = 0.10; I² = 89%).

Three key intervention areas were identified: Nutrition, physical activity, and psychological support including behavioral and cognitive elements. Strict diets were generally not a priority; instead, participants were advised to reduce consumption of high-calorie food and sugary beverages while increasing their intake of vegetables.

 

Promising Interventions

The study highlighted specific interventions for children and adults:

• Children: 6- to 8-week summer camps with daily physical activities such as sports and crafts, complemented by free, nutritious meals.
• Adults: Daily weight monitoring paired with nutrition counseling based on social cognitive theory. Interventions lasted 4 to 8 weeks, spanning mid-November to early January.

Expert Recommendations

Carlos Cristi-Montero, PhD, a researcher at Pontificia Universidad Católica de Valparaíso, Chile, and an author of a Chilean intervention study, shared insights with this news organization.

He emphasized the importance of portion control for children. “During the holidays, families prepare calorie-rich dishes but often fail to consider portion sizes,” he noted. “Children are treated like adults, which contributes to excessive caloric intake. Our interventions focused on teaching people about portion control, the caloric content of their meals, and the risks of overweight and obesity, as well as the benefits of healthy eating.”

He also stressed the importance of evaluating not just weight but body composition, using tools like dual-energy x-ray absorptiometry to measure fat and muscle mass.

Cristi-Montero also highlighted the importance of physical activity: “We emphasize the value of exercise and staying active as key strategies to prevent weight gain.”

 

Steps for Successful Interventions

Educating teachers and parents to reinforce healthy behaviors is also vital, according to Cristi-Montero, as obesity impacts not only metabolic health but also academic performance and mental health.

Both Haby de Sosa and Cristi-Montero agreed that primary care professionals have an important role in driving effective interventions, alongside participation in research to refine prevention strategies. Multidisciplinary teams — including nutritionists, psychologists, exercise specialists, teachers, and parents — can play a part in preventing weight gain during holidays.

 

Future Directions

The University of Sonora research team is currently conducting a controlled trial in Hermosillo, Mexico, involving adult participants divided into intervention and control groups. Preliminary results, already published online, highlight the effectiveness of strategies such as nutrition education, physical activity, regular weight goals, and psychological support in promoting habit changes.

“Interventions to prevent weight gain during the holidays and summer vacations are necessary,” the authors concluded, emphasizing the need for further research to evaluate their effectiveness in the region.

Haby de Sosa or Cristi-Montero declared no relevant financial conflicts of interest.

Natalia Martínez Medina, disclosed the following: Consultant or advisor for: AstraZeneca (former); Sanofi (former). Speaker or a member of a speaker’s bureau for: AstraZeneca (former); Sanofi (former). Research funding from: AstraZeneca (former); Sanofi (former). Contracted researcher for: AstraZeneca (former); Sanofi (former). Employee of: AstraZeneca (former); Sanofi (former).

This story was translated from Medscape’s Spanish edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Evidence is mounting that new therapies already used to treat gut diseases, type 2 diabetes, and obesity may help people with alcohol use disorder (AUD).

Glucagon-like peptide 1 (GLP-1) receptor agonists, first used to treat diabetes and now widely used for weight loss, and fecal microbiota transplants (FMTs), used to treat diseases such as recurrent Clostridioides difficile infection, are advancing in clinical trials as potential options for treating AUD.

 

AUD Affects 28.9 Million People in the United States

In 2023, 28.9 million people aged 12 years or older in the United States had AUD (10.2% of the people in this age group). The Food and Drug Administration (FDA) has approved three medical therapies: Acamprosate, naltrexone, and disulfiram to help keep people with the disorder from returning to heavy drinking. Acamprosate’s mechanism of action is not clear, but it is thought to modulate and normalize alcohol-related changes in brain activity, thereby reducing withdrawal symptoms. Naltrexone blocks opioid receptors to reduce alcohol cravings. Disulfiram causes a toxic physical reaction when mixed with alcohol.

Some with AUD also benefit from behavioral therapies and support groups such as Alcoholics Anonymous. But for others, nothing has worked, and that’s part of the reason Lorenzo Leggio, MD, PhD, a scientist in the field of alcohol addiction with the National Institutes of Health (NIH), told this news organization that this is the “most exciting moment” for AUD treatment in his more than 2 decades of research in this area.

 

GLP-1 Agonists Showing Consistent Results

GLP-1 receptor agonists work by modulating the brain’s reward pathways, including the areas that regulate cravings and motivation.

“By dampening the reward signals associated with alcohol consumption, GLP-1 agonists may reduce cravings and heavy drinking episodes,” Fares Qeadan, PhD, MS, associate professor of biostatistics in the Department of Public Health Sciences at Loyola University Chicago in Illinois, told this news organization.

“The unique aspect of GLP-1 agonists is their ability to target both metabolic and reward systems in the brain,” he said. While naltrexone or acamprosate blocks the effects of alcohol or reduces withdrawal symptoms, “GLP-1 agonists approach addiction through a broader mechanism, potentially addressing underlying factors that contribute to cravings and compulsive behaviors,” he said.

As part of a study published in October in Addiction, Qeadan’s team found that people with AUD who were prescribed GLP-1 agonists had a 50% lower rate of severe intoxication than those who were not prescribed those medications.

“While this is observational and not yet definitive, it highlights the potential of these drugs to complement existing treatments for AUD,” he said.

Another study, a nationwide cohort study published in JAMA Psychiatry, found that using the GLP-1 receptor agonists semaglutide and liraglutide was linked to a lower risk for AUD-related hospitalizations than traditional AUD medications.

A systematic review, published last month in eClinical Medicine, concluded that, though there is little high-quality evidence demonstrating the effect of GLP-1 receptor agonists on alcohol use, “subgroup analysis from two [randomized, controlled trials] and supporting data from four observational studies suggest that GLP-1 [receptor agonists] may reduce alcohol consumption and improve outcomes in some individuals.”

Studying individual differences in response may have implications for personalized medicine, Qeadan said, as treatments could be tailored to those most likely to benefit, such as people with both metabolic dysfunction and AUD.

“These medications may offer hope for patients who struggle with addiction and have not responded to traditional therapies,” Qeadan said.

 

Exploring FMT as AUD Treatment

FMT is also a new research focus for treating AUD. Jasmohan Bajaj, MD, a gastroenterologist and liver specialist at Virginia Commonwealth University Medical Center, Richmond, is leading the Intestinal Microbiota Transplant in Alcohol-Associated Liver Disease (IMPACT) trial.

AUD has been linked with gut microbial alterations that worsen with cirrhosis. Research has shown that alcohol consumption changes the diversity of bacteria and can lead to bacterial overgrowth and progression of alcohol-associated liver disease.

FMT has been effective in rebalancing gut bacteria by transferring healthy stool from screened donors into patients who have developed an overgrowth of harmful bacteria. In the IMPACT trial, participants, who have not previously received traditional treatment for AUD or for whom treatment has not worked, are randomized either to the oral treatment capsule, which contains freeze-dried stool from a donor with healthy gut bacteria, or placebo.

The trial, sponsored by the NIH, is halfway through its target enrollment of 80.

In a previous smaller, placebo-controlled, phase 1 study, also led by Bajaj and published in Hepatology, 9 of the 10 volunteers who had severe AUD and cirrhosis experienced fewer alcohol cravings and had lower consumption after 15 days. Only three of the placebo participants saw similar improvements. Those who received the microbiota transplant also had fewer AUD-related events over 6 months.

Bajaj said that, if trials show FMT is safe and effective, he envisions the treatment as one tool in a multidisciplinary, integrated clinic that would include a hepatologist and mental health clinicians.

One benefit of the FMT treatment approach is it is given once or twice only, rather than administered regularly.

 

Current Treatments Work, But More are Needed

Leggio, who is clinical director of the National Institute on Drug Abuse Intramural Research Program, said: “We know that alcohol use disorder, and addiction in general, is a brain disease. We also know that the brain does not work in isolation. The brain is constantly interacting with the rest of the body, including with the gut.”

Leggio said it’s important to note that the three FDA-approved medications do work for alcohol addiction. He said they work as well as selective serotonin reuptake inhibitors for depression and beta-blockers for chronic heart failure.

But there are only three, and they don’t work for everyone, he noted. Those are among the reasons developing new treatments is important. New treatments could be used as an alternative or in combination with already approved treatments.

FMT is in “the very early stages” of trials testing its use for AUD, Leggio noted, adding that the studies by Bajaj’s team are among the very few addressing gut dysbiosis in AUD, and all have involved small numbers of patients. “It’s promising. It’s intriguing. It’s exciting. But we are just at the beginning.”

 

Results Consistent Across Species, Labs

GLP-1 agonists are further along in trials but still not ready for prescribing for AUD, Leggio said. The positive results have been consistent across species, different labs, and different research teams around the world.

Researchers have also explored through electronic health record emulation trials whether people already taking GLP-1 agonists for diabetes or obesity drink less alcohol compared with matched cohorts not taking GLP-1s. “They consistently show that the people who are on GLP-1s drink less,” he said.

“[Emulation trials] don’t replace the need for randomized controlled trials, Leggio noted. Leggio’s team is currently working on a randomized, placebo-controlled, double-blinded trial studying GLP-1s in relation to AUD.

 

New Directions 20-Year Highlight

This whole line of research represents “new hope” and has many implications, Leggio said. “I have been in this business for 20-plus years, and I think this is themost exciting moment when we have a very promising target in GLP-1s.”

Regardless of efficacy, he said, the focus on GLP-1 agonists and FMT for AUD has people talking more about addiction and the brain-body connection rather than assuming AUD is a result of poor choices and “bad behavior.”

The momentum of new treatments could also lead to patients and physicians having conversations about existing treatments.

“Hopefully, this momentum will help us destigmatize addiction, and by destigmatizing addiction, there will be an uptick in use of currently approved medications,” Leggio said.

Qeadan, Bajaj, and Leggio reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Evidence is mounting that new therapies already used to treat gut diseases, type 2 diabetes, and obesity may help people with alcohol use disorder (AUD).

Glucagon-like peptide 1 (GLP-1) receptor agonists, first used to treat diabetes and now widely used for weight loss, and fecal microbiota transplants (FMTs), used to treat diseases such as recurrent Clostridioides difficile infection, are advancing in clinical trials as potential options for treating AUD.

 

AUD Affects 28.9 Million People in the United States

In 2023, 28.9 million people aged 12 years or older in the United States had AUD (10.2% of the people in this age group). The Food and Drug Administration (FDA) has approved three medical therapies: Acamprosate, naltrexone, and disulfiram to help keep people with the disorder from returning to heavy drinking. Acamprosate’s mechanism of action is not clear, but it is thought to modulate and normalize alcohol-related changes in brain activity, thereby reducing withdrawal symptoms. Naltrexone blocks opioid receptors to reduce alcohol cravings. Disulfiram causes a toxic physical reaction when mixed with alcohol.

Some with AUD also benefit from behavioral therapies and support groups such as Alcoholics Anonymous. But for others, nothing has worked, and that’s part of the reason Lorenzo Leggio, MD, PhD, a scientist in the field of alcohol addiction with the National Institutes of Health (NIH), told this news organization that this is the “most exciting moment” for AUD treatment in his more than 2 decades of research in this area.

 

GLP-1 Agonists Showing Consistent Results

GLP-1 receptor agonists work by modulating the brain’s reward pathways, including the areas that regulate cravings and motivation.

“By dampening the reward signals associated with alcohol consumption, GLP-1 agonists may reduce cravings and heavy drinking episodes,” Fares Qeadan, PhD, MS, associate professor of biostatistics in the Department of Public Health Sciences at Loyola University Chicago in Illinois, told this news organization.

“The unique aspect of GLP-1 agonists is their ability to target both metabolic and reward systems in the brain,” he said. While naltrexone or acamprosate blocks the effects of alcohol or reduces withdrawal symptoms, “GLP-1 agonists approach addiction through a broader mechanism, potentially addressing underlying factors that contribute to cravings and compulsive behaviors,” he said.

As part of a study published in October in Addiction, Qeadan’s team found that people with AUD who were prescribed GLP-1 agonists had a 50% lower rate of severe intoxication than those who were not prescribed those medications.

“While this is observational and not yet definitive, it highlights the potential of these drugs to complement existing treatments for AUD,” he said.

Another study, a nationwide cohort study published in JAMA Psychiatry, found that using the GLP-1 receptor agonists semaglutide and liraglutide was linked to a lower risk for AUD-related hospitalizations than traditional AUD medications.

A systematic review, published last month in eClinical Medicine, concluded that, though there is little high-quality evidence demonstrating the effect of GLP-1 receptor agonists on alcohol use, “subgroup analysis from two [randomized, controlled trials] and supporting data from four observational studies suggest that GLP-1 [receptor agonists] may reduce alcohol consumption and improve outcomes in some individuals.”

Studying individual differences in response may have implications for personalized medicine, Qeadan said, as treatments could be tailored to those most likely to benefit, such as people with both metabolic dysfunction and AUD.

“These medications may offer hope for patients who struggle with addiction and have not responded to traditional therapies,” Qeadan said.

 

Exploring FMT as AUD Treatment

FMT is also a new research focus for treating AUD. Jasmohan Bajaj, MD, a gastroenterologist and liver specialist at Virginia Commonwealth University Medical Center, Richmond, is leading the Intestinal Microbiota Transplant in Alcohol-Associated Liver Disease (IMPACT) trial.

AUD has been linked with gut microbial alterations that worsen with cirrhosis. Research has shown that alcohol consumption changes the diversity of bacteria and can lead to bacterial overgrowth and progression of alcohol-associated liver disease.

FMT has been effective in rebalancing gut bacteria by transferring healthy stool from screened donors into patients who have developed an overgrowth of harmful bacteria. In the IMPACT trial, participants, who have not previously received traditional treatment for AUD or for whom treatment has not worked, are randomized either to the oral treatment capsule, which contains freeze-dried stool from a donor with healthy gut bacteria, or placebo.

The trial, sponsored by the NIH, is halfway through its target enrollment of 80.

In a previous smaller, placebo-controlled, phase 1 study, also led by Bajaj and published in Hepatology, 9 of the 10 volunteers who had severe AUD and cirrhosis experienced fewer alcohol cravings and had lower consumption after 15 days. Only three of the placebo participants saw similar improvements. Those who received the microbiota transplant also had fewer AUD-related events over 6 months.

Bajaj said that, if trials show FMT is safe and effective, he envisions the treatment as one tool in a multidisciplinary, integrated clinic that would include a hepatologist and mental health clinicians.

One benefit of the FMT treatment approach is it is given once or twice only, rather than administered regularly.

 

Current Treatments Work, But More are Needed

Leggio, who is clinical director of the National Institute on Drug Abuse Intramural Research Program, said: “We know that alcohol use disorder, and addiction in general, is a brain disease. We also know that the brain does not work in isolation. The brain is constantly interacting with the rest of the body, including with the gut.”

Leggio said it’s important to note that the three FDA-approved medications do work for alcohol addiction. He said they work as well as selective serotonin reuptake inhibitors for depression and beta-blockers for chronic heart failure.

But there are only three, and they don’t work for everyone, he noted. Those are among the reasons developing new treatments is important. New treatments could be used as an alternative or in combination with already approved treatments.

FMT is in “the very early stages” of trials testing its use for AUD, Leggio noted, adding that the studies by Bajaj’s team are among the very few addressing gut dysbiosis in AUD, and all have involved small numbers of patients. “It’s promising. It’s intriguing. It’s exciting. But we are just at the beginning.”

 

Results Consistent Across Species, Labs

GLP-1 agonists are further along in trials but still not ready for prescribing for AUD, Leggio said. The positive results have been consistent across species, different labs, and different research teams around the world.

Researchers have also explored through electronic health record emulation trials whether people already taking GLP-1 agonists for diabetes or obesity drink less alcohol compared with matched cohorts not taking GLP-1s. “They consistently show that the people who are on GLP-1s drink less,” he said.

“[Emulation trials] don’t replace the need for randomized controlled trials, Leggio noted. Leggio’s team is currently working on a randomized, placebo-controlled, double-blinded trial studying GLP-1s in relation to AUD.

 

New Directions 20-Year Highlight

This whole line of research represents “new hope” and has many implications, Leggio said. “I have been in this business for 20-plus years, and I think this is themost exciting moment when we have a very promising target in GLP-1s.”

Regardless of efficacy, he said, the focus on GLP-1 agonists and FMT for AUD has people talking more about addiction and the brain-body connection rather than assuming AUD is a result of poor choices and “bad behavior.”

The momentum of new treatments could also lead to patients and physicians having conversations about existing treatments.

“Hopefully, this momentum will help us destigmatize addiction, and by destigmatizing addiction, there will be an uptick in use of currently approved medications,” Leggio said.

Qeadan, Bajaj, and Leggio reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Evidence is mounting that new therapies already used to treat gut diseases, type 2 diabetes, and obesity may help people with alcohol use disorder (AUD).

Glucagon-like peptide 1 (GLP-1) receptor agonists, first used to treat diabetes and now widely used for weight loss, and fecal microbiota transplants (FMTs), used to treat diseases such as recurrent Clostridioides difficile infection, are advancing in clinical trials as potential options for treating AUD.

 

AUD Affects 28.9 Million People in the United States

In 2023, 28.9 million people aged 12 years or older in the United States had AUD (10.2% of the people in this age group). The Food and Drug Administration (FDA) has approved three medical therapies: Acamprosate, naltrexone, and disulfiram to help keep people with the disorder from returning to heavy drinking. Acamprosate’s mechanism of action is not clear, but it is thought to modulate and normalize alcohol-related changes in brain activity, thereby reducing withdrawal symptoms. Naltrexone blocks opioid receptors to reduce alcohol cravings. Disulfiram causes a toxic physical reaction when mixed with alcohol.

Some with AUD also benefit from behavioral therapies and support groups such as Alcoholics Anonymous. But for others, nothing has worked, and that’s part of the reason Lorenzo Leggio, MD, PhD, a scientist in the field of alcohol addiction with the National Institutes of Health (NIH), told this news organization that this is the “most exciting moment” for AUD treatment in his more than 2 decades of research in this area.

 

GLP-1 Agonists Showing Consistent Results

GLP-1 receptor agonists work by modulating the brain’s reward pathways, including the areas that regulate cravings and motivation.

“By dampening the reward signals associated with alcohol consumption, GLP-1 agonists may reduce cravings and heavy drinking episodes,” Fares Qeadan, PhD, MS, associate professor of biostatistics in the Department of Public Health Sciences at Loyola University Chicago in Illinois, told this news organization.

“The unique aspect of GLP-1 agonists is their ability to target both metabolic and reward systems in the brain,” he said. While naltrexone or acamprosate blocks the effects of alcohol or reduces withdrawal symptoms, “GLP-1 agonists approach addiction through a broader mechanism, potentially addressing underlying factors that contribute to cravings and compulsive behaviors,” he said.

As part of a study published in October in Addiction, Qeadan’s team found that people with AUD who were prescribed GLP-1 agonists had a 50% lower rate of severe intoxication than those who were not prescribed those medications.

“While this is observational and not yet definitive, it highlights the potential of these drugs to complement existing treatments for AUD,” he said.

Another study, a nationwide cohort study published in JAMA Psychiatry, found that using the GLP-1 receptor agonists semaglutide and liraglutide was linked to a lower risk for AUD-related hospitalizations than traditional AUD medications.

A systematic review, published last month in eClinical Medicine, concluded that, though there is little high-quality evidence demonstrating the effect of GLP-1 receptor agonists on alcohol use, “subgroup analysis from two [randomized, controlled trials] and supporting data from four observational studies suggest that GLP-1 [receptor agonists] may reduce alcohol consumption and improve outcomes in some individuals.”

Studying individual differences in response may have implications for personalized medicine, Qeadan said, as treatments could be tailored to those most likely to benefit, such as people with both metabolic dysfunction and AUD.

“These medications may offer hope for patients who struggle with addiction and have not responded to traditional therapies,” Qeadan said.

 

Exploring FMT as AUD Treatment

FMT is also a new research focus for treating AUD. Jasmohan Bajaj, MD, a gastroenterologist and liver specialist at Virginia Commonwealth University Medical Center, Richmond, is leading the Intestinal Microbiota Transplant in Alcohol-Associated Liver Disease (IMPACT) trial.

AUD has been linked with gut microbial alterations that worsen with cirrhosis. Research has shown that alcohol consumption changes the diversity of bacteria and can lead to bacterial overgrowth and progression of alcohol-associated liver disease.

FMT has been effective in rebalancing gut bacteria by transferring healthy stool from screened donors into patients who have developed an overgrowth of harmful bacteria. In the IMPACT trial, participants, who have not previously received traditional treatment for AUD or for whom treatment has not worked, are randomized either to the oral treatment capsule, which contains freeze-dried stool from a donor with healthy gut bacteria, or placebo.

The trial, sponsored by the NIH, is halfway through its target enrollment of 80.

In a previous smaller, placebo-controlled, phase 1 study, also led by Bajaj and published in Hepatology, 9 of the 10 volunteers who had severe AUD and cirrhosis experienced fewer alcohol cravings and had lower consumption after 15 days. Only three of the placebo participants saw similar improvements. Those who received the microbiota transplant also had fewer AUD-related events over 6 months.

Bajaj said that, if trials show FMT is safe and effective, he envisions the treatment as one tool in a multidisciplinary, integrated clinic that would include a hepatologist and mental health clinicians.

One benefit of the FMT treatment approach is it is given once or twice only, rather than administered regularly.

 

Current Treatments Work, But More are Needed

Leggio, who is clinical director of the National Institute on Drug Abuse Intramural Research Program, said: “We know that alcohol use disorder, and addiction in general, is a brain disease. We also know that the brain does not work in isolation. The brain is constantly interacting with the rest of the body, including with the gut.”

Leggio said it’s important to note that the three FDA-approved medications do work for alcohol addiction. He said they work as well as selective serotonin reuptake inhibitors for depression and beta-blockers for chronic heart failure.

But there are only three, and they don’t work for everyone, he noted. Those are among the reasons developing new treatments is important. New treatments could be used as an alternative or in combination with already approved treatments.

FMT is in “the very early stages” of trials testing its use for AUD, Leggio noted, adding that the studies by Bajaj’s team are among the very few addressing gut dysbiosis in AUD, and all have involved small numbers of patients. “It’s promising. It’s intriguing. It’s exciting. But we are just at the beginning.”

 

Results Consistent Across Species, Labs

GLP-1 agonists are further along in trials but still not ready for prescribing for AUD, Leggio said. The positive results have been consistent across species, different labs, and different research teams around the world.

Researchers have also explored through electronic health record emulation trials whether people already taking GLP-1 agonists for diabetes or obesity drink less alcohol compared with matched cohorts not taking GLP-1s. “They consistently show that the people who are on GLP-1s drink less,” he said.

“[Emulation trials] don’t replace the need for randomized controlled trials, Leggio noted. Leggio’s team is currently working on a randomized, placebo-controlled, double-blinded trial studying GLP-1s in relation to AUD.

 

New Directions 20-Year Highlight

This whole line of research represents “new hope” and has many implications, Leggio said. “I have been in this business for 20-plus years, and I think this is themost exciting moment when we have a very promising target in GLP-1s.”

Regardless of efficacy, he said, the focus on GLP-1 agonists and FMT for AUD has people talking more about addiction and the brain-body connection rather than assuming AUD is a result of poor choices and “bad behavior.”

The momentum of new treatments could also lead to patients and physicians having conversations about existing treatments.

“Hopefully, this momentum will help us destigmatize addiction, and by destigmatizing addiction, there will be an uptick in use of currently approved medications,” Leggio said.

Qeadan, Bajaj, and Leggio reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Every year, an estimated 45 million Americans attempt some kind of diet to shed weight, especially after the holidays. Whether or not an individual is on a successful weight loss journey, at some point they probably will experience “diet fatigue.” This is the mental and emotional exhaustion associated with engaging in dieting behaviors like calorie counting, weighing and measuring food, meal planning and prepping, and restricting certain foods. 

Diet fatigue is a huge reason (but certainly not the only reason) why diets fail, as dieters can become so burned out that they ditch their diet, return to their former eating habits, blame themselves for their diet failure, and then repeat the cycle.

Alison* became my client just as her diet fatigue was starting to settle in. She had already lost 25 pounds in the prior 6 months while in a coaching program that focused primarily on hitting calorie and macro targets. She had been following an extremely high-protein regimen that relied heavily on animal sources and protein powders. I’m not against using powders to supplement protein needs, but in Alison’s case, she was consuming a powder-and-milk concoction twice per day in place of a meal with actual food. Not only had she become plain sick of the powder, but she was also concerned that all the protein was pushing vegetables off her plate. Alison had been following this plan quite strictly but admitted to indulging in weekend sweets. She recognized that this occasional indulgence could quickly morph into a full-on habit and undo her progress. While Alison had not yet reached her goal weight, we both agreed that she needed to change up her eating routine. 

Getting a patient through diet fatigue involves identifying which dieting behaviors are causing them the most angst and then guiding them toward a more sustainable approach that provides a similar benefit. For example, many dieters develop a huge disdain for calorie tracking, which they most often describe as tedious. One alternative to tracking calories is food journaling, which encourages accountability and mindfulness but is not as time-consuming as plugging every single ingredient you ingest into an app. Alison, however, didn’t have a problem with tracking, nor with weighing her food (as a Type A personality, she preferred having this kind of control). But she was clearly lacking a few things in her previous diet: variety, fiber, and flavor. In short, Alison was not enjoying her food — hence, her increased desire for treats on weekends, which she saw as a kind of reward for “being good” all week. 

To keep Alison from slipping into a weekend bingeing pattern, we discussed a few tweaks to her regimen. First, we had to ditch the protein powder in favor of balanced meals. I recommended reducing her daily protein target, which I felt was unnecessarily high. This provided some wiggle room to add a well-rounded dinner. I encouraged her to start adding spices and herbs to make dishes more exciting. 

Finally — and this one might be controversial — I encouraged Alison to actually plan for a weekly indulgence. In my experience working in the weight management space, complete restriction of a desired food always backfires, so it made sense for Alison to simply build the chocolate into her plan in a reasonable way. 

I’m confident that Alison will reach her weight loss goal (and keep the weight off) if food continues to bring her pleasure. When it comes to weight loss, I believe that if the solution is temporary, success will also be temporary. As a dietitian, preaching sustainable, long-term habit changes is my priority, not just because it’s responsible, but because it’s the only approach that truly works.

*Patient’s name changed to protect privacy. 

Ms. Hanks is a registered dietitian at Well by Messer in New York City. She disclosed no relevant conflicts of interest.

A version of this article first appeared on Medscape.com. 

Every year, an estimated 45 million Americans attempt some kind of diet to shed weight, especially after the holidays. Whether or not an individual is on a successful weight loss journey, at some point they probably will experience “diet fatigue.” This is the mental and emotional exhaustion associated with engaging in dieting behaviors like calorie counting, weighing and measuring food, meal planning and prepping, and restricting certain foods. 

Diet fatigue is a huge reason (but certainly not the only reason) why diets fail, as dieters can become so burned out that they ditch their diet, return to their former eating habits, blame themselves for their diet failure, and then repeat the cycle.

Alison* became my client just as her diet fatigue was starting to settle in. She had already lost 25 pounds in the prior 6 months while in a coaching program that focused primarily on hitting calorie and macro targets. She had been following an extremely high-protein regimen that relied heavily on animal sources and protein powders. I’m not against using powders to supplement protein needs, but in Alison’s case, she was consuming a powder-and-milk concoction twice per day in place of a meal with actual food. Not only had she become plain sick of the powder, but she was also concerned that all the protein was pushing vegetables off her plate. Alison had been following this plan quite strictly but admitted to indulging in weekend sweets. She recognized that this occasional indulgence could quickly morph into a full-on habit and undo her progress. While Alison had not yet reached her goal weight, we both agreed that she needed to change up her eating routine. 

Getting a patient through diet fatigue involves identifying which dieting behaviors are causing them the most angst and then guiding them toward a more sustainable approach that provides a similar benefit. For example, many dieters develop a huge disdain for calorie tracking, which they most often describe as tedious. One alternative to tracking calories is food journaling, which encourages accountability and mindfulness but is not as time-consuming as plugging every single ingredient you ingest into an app. Alison, however, didn’t have a problem with tracking, nor with weighing her food (as a Type A personality, she preferred having this kind of control). But she was clearly lacking a few things in her previous diet: variety, fiber, and flavor. In short, Alison was not enjoying her food — hence, her increased desire for treats on weekends, which she saw as a kind of reward for “being good” all week. 

To keep Alison from slipping into a weekend bingeing pattern, we discussed a few tweaks to her regimen. First, we had to ditch the protein powder in favor of balanced meals. I recommended reducing her daily protein target, which I felt was unnecessarily high. This provided some wiggle room to add a well-rounded dinner. I encouraged her to start adding spices and herbs to make dishes more exciting. 

Finally — and this one might be controversial — I encouraged Alison to actually plan for a weekly indulgence. In my experience working in the weight management space, complete restriction of a desired food always backfires, so it made sense for Alison to simply build the chocolate into her plan in a reasonable way. 

I’m confident that Alison will reach her weight loss goal (and keep the weight off) if food continues to bring her pleasure. When it comes to weight loss, I believe that if the solution is temporary, success will also be temporary. As a dietitian, preaching sustainable, long-term habit changes is my priority, not just because it’s responsible, but because it’s the only approach that truly works.

*Patient’s name changed to protect privacy. 

Ms. Hanks is a registered dietitian at Well by Messer in New York City. She disclosed no relevant conflicts of interest.

A version of this article first appeared on Medscape.com. 

Every year, an estimated 45 million Americans attempt some kind of diet to shed weight, especially after the holidays. Whether or not an individual is on a successful weight loss journey, at some point they probably will experience “diet fatigue.” This is the mental and emotional exhaustion associated with engaging in dieting behaviors like calorie counting, weighing and measuring food, meal planning and prepping, and restricting certain foods. 

Diet fatigue is a huge reason (but certainly not the only reason) why diets fail, as dieters can become so burned out that they ditch their diet, return to their former eating habits, blame themselves for their diet failure, and then repeat the cycle.

Alison* became my client just as her diet fatigue was starting to settle in. She had already lost 25 pounds in the prior 6 months while in a coaching program that focused primarily on hitting calorie and macro targets. She had been following an extremely high-protein regimen that relied heavily on animal sources and protein powders. I’m not against using powders to supplement protein needs, but in Alison’s case, she was consuming a powder-and-milk concoction twice per day in place of a meal with actual food. Not only had she become plain sick of the powder, but she was also concerned that all the protein was pushing vegetables off her plate. Alison had been following this plan quite strictly but admitted to indulging in weekend sweets. She recognized that this occasional indulgence could quickly morph into a full-on habit and undo her progress. While Alison had not yet reached her goal weight, we both agreed that she needed to change up her eating routine. 

Getting a patient through diet fatigue involves identifying which dieting behaviors are causing them the most angst and then guiding them toward a more sustainable approach that provides a similar benefit. For example, many dieters develop a huge disdain for calorie tracking, which they most often describe as tedious. One alternative to tracking calories is food journaling, which encourages accountability and mindfulness but is not as time-consuming as plugging every single ingredient you ingest into an app. Alison, however, didn’t have a problem with tracking, nor with weighing her food (as a Type A personality, she preferred having this kind of control). But she was clearly lacking a few things in her previous diet: variety, fiber, and flavor. In short, Alison was not enjoying her food — hence, her increased desire for treats on weekends, which she saw as a kind of reward for “being good” all week. 

To keep Alison from slipping into a weekend bingeing pattern, we discussed a few tweaks to her regimen. First, we had to ditch the protein powder in favor of balanced meals. I recommended reducing her daily protein target, which I felt was unnecessarily high. This provided some wiggle room to add a well-rounded dinner. I encouraged her to start adding spices and herbs to make dishes more exciting. 

Finally — and this one might be controversial — I encouraged Alison to actually plan for a weekly indulgence. In my experience working in the weight management space, complete restriction of a desired food always backfires, so it made sense for Alison to simply build the chocolate into her plan in a reasonable way. 

I’m confident that Alison will reach her weight loss goal (and keep the weight off) if food continues to bring her pleasure. When it comes to weight loss, I believe that if the solution is temporary, success will also be temporary. As a dietitian, preaching sustainable, long-term habit changes is my priority, not just because it’s responsible, but because it’s the only approach that truly works.

*Patient’s name changed to protect privacy. 

Ms. Hanks is a registered dietitian at Well by Messer in New York City. She disclosed no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.