Obesity

Patients with obesity but without major depressive disorder or suicidal ideation within the previous 2 years attained meaningful weight loss with semaglutide, regardless of antidepressant use at baseline, in a post hoc analysis of the Semaglutide Treatment Effect in People with Obesity (STEP) program.

Adverse events, including psychiatric events, were slightly more usual in the patients on antidepressants, Robert Kushner, MD, noted, in an oral session at the annual meeting of the Obesity Society.  

“It is very common that patients who present for weight management are taking antidepressants for various reasons, including depression, anxiety, insomnia, or chronic pain,”Dr. Kushner, from Northwestern University in Chicago, said in an email. “We wanted to see if these participants responded differently to semaglutide, compared to those not on antidepressants.”

“We found that antidepressants do not blunt the effect of semaglutide for weight loss,” he said. “However, there is a slight increase in reported adverse effects.”

“Semaglutide 2.4 mg provides an effective treatment option for weight management, regardless of antidepressant use at baseline,” Dr. Kushner summarized. “Clinicians should be assured that we can use semaglutide in this population of patients.”

Jack Yanovski, MD, PhD, said this was a “great presentation,” noting that “it’s really important that we understand what goes on in patients with depression.”

“Of course, all these trials still had rules that prevent the folks with the most severe depressive symptoms or past suicidality to participate,” added Dr. Yanovski, chief of the Growth and Obesity Section, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Rockville, Md. “We need specific trials to know exactly how well we do.”

Dr. Kushner agreed, but also noted that, ever since some earlier antidepressants were associated with risk for suicidal ideation and death, strict guidelines were put in place that exclude certain patients from participating in clinical trials.

Dr. Yanovski suggested that now that the drugs are approved, it would be possible to study this, and the information would be important for clinicians.

Dr. Kushner said he hopes that such studies are forthcoming. In the meantime, “data like this will add some support and understanding,” he suggested.
 

36,000 Patients with obesity, 500 on antidepressants

Many people living with obesity report taking antidepressants for depression, anxiety, chronic pain, obsessive-compulsive disorder, sleep disturbance, neuropathy, panic disorder, or posttraumatic stress disorder, Dr. Kushner noted.

However, some of these medications can cause weight gain, and little is known about treatment outcomes for people with obesity who are on antidepressants, since most weight-loss studies exclude people with active major depressive disorder.

The researchers analyzed data from 1,961 patients in STEP 1 and 807 patients in STEP 2 as well as 611 patients in STEP 3 and 304 patients in STEP 5 – 3,683 participants in total, of which 539 were on antidepressants at baseline.

The patients were randomly assigned to 2.4 mg semaglutide vs. placebo plus a lifestyle intervention (STEP 1, 2, and 5) or intensive behavioral therapy (STEP 3 only), for 68 weeks, except STEP 5, which was 104 weeks.

Patients were included if they were aged 18 or older with a body mass index ≥30 kg/m², or ≥27 kg/m² with more than one weight-related complication (STEP 1, 3, and 5) or BMI ≥27 kg/m² with type 2 diabetes (STEP 2 only), and at least one self-reported unsuccessful effort to lose weight by diet.

They were excluded if they had active major depressive disorder within 2 years prior to screening (or other severe psychiatric disorders such as schizophrenia or bipolar disorder) or a Patient Health Questionnaire-9 score of 15 or higher (indicating moderately severe or severe depression), or suicide ideation (type 4 or 5 on the Columbia Suicide Severity Rating Scale) or suicide behavior, within 30 days of screening.

From baseline to week 68, patients on semaglutide (with/without baseline antidepressant use) had a significantly greater change in weight vs. patients on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: –15.7% / –14.7% vs. –0.2% / –2.8%
• STEP 2: –10.7% / –9.5% vs. –3.3% / –3.4%
• STEP 3: –16.2% / –15.9% vs. –5.0% / –5.9%
• STEP 5: –19.0% / –14.1% vs. +1.6% / – 4.0%. 

The proportion of reported adverse events was generally slightly greater in patients receiving semaglutide (with/without baseline antidepressant use) than those on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: 97.7% vs 88.6% and 92.9% vs. 86%
• STEP 2: 97.6% vs 86.5% and 88.6% vs. 77.2%
• STEP 3: 97.6% vs 95.3% and 100% vs. 95.8%
• STEP 5: 100% vs 94.8% and 95.5% vs. 89.2%.

Gastrointestinal adverse events were more frequently reported in the semaglutide group and in patients on antidepressants at baseline. The proportion of patients with psychiatric adverse events was greater in participants on antidepressants at baseline. There were no differences in suicidal ideation/behavior in patients with/without antidepressant use at baseline.

The STEP trials were funded by Novo Nordisk. Dr. Kushner discloses that he served as a consultant for Novo Nordisk, WeightWatchers, Eli Lilly, and Pfizer, and received a research grant from Epitomee.

A version of this article appeared on Medscape.com.

Patients with obesity but without major depressive disorder or suicidal ideation within the previous 2 years attained meaningful weight loss with semaglutide, regardless of antidepressant use at baseline, in a post hoc analysis of the Semaglutide Treatment Effect in People with Obesity (STEP) program.

Adverse events, including psychiatric events, were slightly more usual in the patients on antidepressants, Robert Kushner, MD, noted, in an oral session at the annual meeting of the Obesity Society.  

“It is very common that patients who present for weight management are taking antidepressants for various reasons, including depression, anxiety, insomnia, or chronic pain,”Dr. Kushner, from Northwestern University in Chicago, said in an email. “We wanted to see if these participants responded differently to semaglutide, compared to those not on antidepressants.”

“We found that antidepressants do not blunt the effect of semaglutide for weight loss,” he said. “However, there is a slight increase in reported adverse effects.”

“Semaglutide 2.4 mg provides an effective treatment option for weight management, regardless of antidepressant use at baseline,” Dr. Kushner summarized. “Clinicians should be assured that we can use semaglutide in this population of patients.”

Jack Yanovski, MD, PhD, said this was a “great presentation,” noting that “it’s really important that we understand what goes on in patients with depression.”

“Of course, all these trials still had rules that prevent the folks with the most severe depressive symptoms or past suicidality to participate,” added Dr. Yanovski, chief of the Growth and Obesity Section, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Rockville, Md. “We need specific trials to know exactly how well we do.”

Dr. Kushner agreed, but also noted that, ever since some earlier antidepressants were associated with risk for suicidal ideation and death, strict guidelines were put in place that exclude certain patients from participating in clinical trials.

Dr. Yanovski suggested that now that the drugs are approved, it would be possible to study this, and the information would be important for clinicians.

Dr. Kushner said he hopes that such studies are forthcoming. In the meantime, “data like this will add some support and understanding,” he suggested.
 

36,000 Patients with obesity, 500 on antidepressants

Many people living with obesity report taking antidepressants for depression, anxiety, chronic pain, obsessive-compulsive disorder, sleep disturbance, neuropathy, panic disorder, or posttraumatic stress disorder, Dr. Kushner noted.

However, some of these medications can cause weight gain, and little is known about treatment outcomes for people with obesity who are on antidepressants, since most weight-loss studies exclude people with active major depressive disorder.

The researchers analyzed data from 1,961 patients in STEP 1 and 807 patients in STEP 2 as well as 611 patients in STEP 3 and 304 patients in STEP 5 – 3,683 participants in total, of which 539 were on antidepressants at baseline.

The patients were randomly assigned to 2.4 mg semaglutide vs. placebo plus a lifestyle intervention (STEP 1, 2, and 5) or intensive behavioral therapy (STEP 3 only), for 68 weeks, except STEP 5, which was 104 weeks.

Patients were included if they were aged 18 or older with a body mass index ≥30 kg/m², or ≥27 kg/m² with more than one weight-related complication (STEP 1, 3, and 5) or BMI ≥27 kg/m² with type 2 diabetes (STEP 2 only), and at least one self-reported unsuccessful effort to lose weight by diet.

They were excluded if they had active major depressive disorder within 2 years prior to screening (or other severe psychiatric disorders such as schizophrenia or bipolar disorder) or a Patient Health Questionnaire-9 score of 15 or higher (indicating moderately severe or severe depression), or suicide ideation (type 4 or 5 on the Columbia Suicide Severity Rating Scale) or suicide behavior, within 30 days of screening.

From baseline to week 68, patients on semaglutide (with/without baseline antidepressant use) had a significantly greater change in weight vs. patients on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: –15.7% / –14.7% vs. –0.2% / –2.8%
• STEP 2: –10.7% / –9.5% vs. –3.3% / –3.4%
• STEP 3: –16.2% / –15.9% vs. –5.0% / –5.9%
• STEP 5: –19.0% / –14.1% vs. +1.6% / – 4.0%. 

The proportion of reported adverse events was generally slightly greater in patients receiving semaglutide (with/without baseline antidepressant use) than those on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: 97.7% vs 88.6% and 92.9% vs. 86%
• STEP 2: 97.6% vs 86.5% and 88.6% vs. 77.2%
• STEP 3: 97.6% vs 95.3% and 100% vs. 95.8%
• STEP 5: 100% vs 94.8% and 95.5% vs. 89.2%.

Gastrointestinal adverse events were more frequently reported in the semaglutide group and in patients on antidepressants at baseline. The proportion of patients with psychiatric adverse events was greater in participants on antidepressants at baseline. There were no differences in suicidal ideation/behavior in patients with/without antidepressant use at baseline.

The STEP trials were funded by Novo Nordisk. Dr. Kushner discloses that he served as a consultant for Novo Nordisk, WeightWatchers, Eli Lilly, and Pfizer, and received a research grant from Epitomee.

A version of this article appeared on Medscape.com.

Patients with obesity but without major depressive disorder or suicidal ideation within the previous 2 years attained meaningful weight loss with semaglutide, regardless of antidepressant use at baseline, in a post hoc analysis of the Semaglutide Treatment Effect in People with Obesity (STEP) program.

Adverse events, including psychiatric events, were slightly more usual in the patients on antidepressants, Robert Kushner, MD, noted, in an oral session at the annual meeting of the Obesity Society.  

“It is very common that patients who present for weight management are taking antidepressants for various reasons, including depression, anxiety, insomnia, or chronic pain,”Dr. Kushner, from Northwestern University in Chicago, said in an email. “We wanted to see if these participants responded differently to semaglutide, compared to those not on antidepressants.”

“We found that antidepressants do not blunt the effect of semaglutide for weight loss,” he said. “However, there is a slight increase in reported adverse effects.”

“Semaglutide 2.4 mg provides an effective treatment option for weight management, regardless of antidepressant use at baseline,” Dr. Kushner summarized. “Clinicians should be assured that we can use semaglutide in this population of patients.”

Jack Yanovski, MD, PhD, said this was a “great presentation,” noting that “it’s really important that we understand what goes on in patients with depression.”

“Of course, all these trials still had rules that prevent the folks with the most severe depressive symptoms or past suicidality to participate,” added Dr. Yanovski, chief of the Growth and Obesity Section, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Rockville, Md. “We need specific trials to know exactly how well we do.”

Dr. Kushner agreed, but also noted that, ever since some earlier antidepressants were associated with risk for suicidal ideation and death, strict guidelines were put in place that exclude certain patients from participating in clinical trials.

Dr. Yanovski suggested that now that the drugs are approved, it would be possible to study this, and the information would be important for clinicians.

Dr. Kushner said he hopes that such studies are forthcoming. In the meantime, “data like this will add some support and understanding,” he suggested.
 

36,000 Patients with obesity, 500 on antidepressants

Many people living with obesity report taking antidepressants for depression, anxiety, chronic pain, obsessive-compulsive disorder, sleep disturbance, neuropathy, panic disorder, or posttraumatic stress disorder, Dr. Kushner noted.

However, some of these medications can cause weight gain, and little is known about treatment outcomes for people with obesity who are on antidepressants, since most weight-loss studies exclude people with active major depressive disorder.

The researchers analyzed data from 1,961 patients in STEP 1 and 807 patients in STEP 2 as well as 611 patients in STEP 3 and 304 patients in STEP 5 – 3,683 participants in total, of which 539 were on antidepressants at baseline.

The patients were randomly assigned to 2.4 mg semaglutide vs. placebo plus a lifestyle intervention (STEP 1, 2, and 5) or intensive behavioral therapy (STEP 3 only), for 68 weeks, except STEP 5, which was 104 weeks.

Patients were included if they were aged 18 or older with a body mass index ≥30 kg/m², or ≥27 kg/m² with more than one weight-related complication (STEP 1, 3, and 5) or BMI ≥27 kg/m² with type 2 diabetes (STEP 2 only), and at least one self-reported unsuccessful effort to lose weight by diet.

They were excluded if they had active major depressive disorder within 2 years prior to screening (or other severe psychiatric disorders such as schizophrenia or bipolar disorder) or a Patient Health Questionnaire-9 score of 15 or higher (indicating moderately severe or severe depression), or suicide ideation (type 4 or 5 on the Columbia Suicide Severity Rating Scale) or suicide behavior, within 30 days of screening.

From baseline to week 68, patients on semaglutide (with/without baseline antidepressant use) had a significantly greater change in weight vs. patients on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: –15.7% / –14.7% vs. –0.2% / –2.8%
• STEP 2: –10.7% / –9.5% vs. –3.3% / –3.4%
• STEP 3: –16.2% / –15.9% vs. –5.0% / –5.9%
• STEP 5: –19.0% / –14.1% vs. +1.6% / – 4.0%. 

The proportion of reported adverse events was generally slightly greater in patients receiving semaglutide (with/without baseline antidepressant use) than those on placebo (with/without baseline antidepressant use), respectively:

• STEP 1: 97.7% vs 88.6% and 92.9% vs. 86%
• STEP 2: 97.6% vs 86.5% and 88.6% vs. 77.2%
• STEP 3: 97.6% vs 95.3% and 100% vs. 95.8%
• STEP 5: 100% vs 94.8% and 95.5% vs. 89.2%.

Gastrointestinal adverse events were more frequently reported in the semaglutide group and in patients on antidepressants at baseline. The proportion of patients with psychiatric adverse events was greater in participants on antidepressants at baseline. There were no differences in suicidal ideation/behavior in patients with/without antidepressant use at baseline.

The STEP trials were funded by Novo Nordisk. Dr. Kushner discloses that he served as a consultant for Novo Nordisk, WeightWatchers, Eli Lilly, and Pfizer, and received a research grant from Epitomee.

A version of this article appeared on Medscape.com.

For women who are obese, daily life is wrought with landmines. Whether it’s the challenges of air travel because plane seats are too small, the need to shield themselves from the world’s discriminating eyes, or the great lengths many will go to achieve better health and the promise of longevity, navigating life as an obese person requires a thick skin.

So, it’s no wonder so many are willing to pay more than $1,000 a month out of pocket to get their hands on drugs like semaglutide (Ozempic and Wegovy) or tirzepatide (Mounjaro). The benefits of these drugs, which are part of a new class called glucagonlike peptide–1 (GLP-1) receptor agonists, include significant and rapid weight loss, blood sugar control, and improved life quality; they are unprecedented in a setting where surgery has long been considered the most effective long-term option.

On the flip side, the desire for rapid weight loss and better blood sugar control also comes with an unexpected cost. Many women living with obesity who take oral contraceptives are unaware that these drugs – especially Mounjaro – can interfere with the absorption of birth control pills and how well they work, making an unintended pregnancy more likely.

Neel Shah, MD, an endocrinologist and associate professor at the University of Texas Health Science Center at Houston, said he has had several patients become pregnant without intending to. 

“It was when Mounjaro came out on the market when we started using it,” he said of the drug the Food and Drug Administration approved for type 2 diabetes in 2022. “It [the warning] was in the product insert, but clinically speaking, I don’t know if it was at the top of providers’ minds when they were prescribing Mounjaro.”

When asked if he believed that we were going to be seeing a significant increase in so-called Mounjaro babies, Dr. Shah was sure in his response. 

“Absolutely. We will because the sheer volume [of patients] will increase,” he said.
 

It’s all in the gut

One of the ways that drugs like Mounjaro work is by delaying the time that it takes for food to move from the stomach to the small intestine. Although data are still evolving, it is believed that this process – delayed gastric emptying – may affect the absorption of birth control pills. 

Dr. Shah said another theory is that vomiting, which is a common side effect of these types of drugs, also affects the pills’ ability to prevent pregnancy. 

And “there’s a prolonged period of ramping up the dose because of the GI side effects,” said Pinar Kodaman, MD, PhD, a reproductive endocrinologist and assistant professor of gynecology at Yale University in New Haven, Conn. 

“Initially, at the lowest dose, there may not be a lot of potential effect on absorption and gastric emptying. But as the dose goes up, it becomes more common, and it can cause diarrhea, which is another condition that can affect the absorption of any medication,” she said.
 

Unanticipated outcomes, extra prevention

Roughly 42% of women in the United States are obese, 40% of whom are between the ages of 20 and 39. Although these new drugs can improve fertility outcomes for women who are obese (especially those with polycystic ovary syndrome, or PCOS), only one – Mounjaro – currently carries a warning about birth control pill effectiveness on its label. Unfortunately, it appears that some doctors are unaware or not counseling patients about this risk, and the data are unclear about whether other drugs in this class, like Ozempic and Wegovy, have the same risks. 

“To date, it hasn’t been a typical thing that we counsel about,” said Dr. Kodaman. “It’s all fairly new, but when we have patients on birth control pills, we do review other medications that they are on because some can affect efficacy, and it’s something to keep in mind.”

It’s also unclear if other forms of birth control – for example, birth control patches that deliver through the skin – might carry similar pregnancy risks. Dr. Shah said some of his patients who became pregnant without intending to were using these patches. This raises even more questions, since they deliver drugs through the skin directly into the bloodstream and not through the GI system. 

What can women do to help ensure that they don’t become pregnant while using these drugs? 

“I really think that if patients want to protect themselves from an unplanned pregnancy, that as soon as they start the GLP receptor agonists, it wouldn’t be a bad idea to use condoms, because the onset of action is pretty quick,” said Dr. Kodaman, noting also that “at the lowest dose there may not be a lot of potential effect on gastric emptying. But as the dose goes up, it becomes much more common or can cause diarrhea.” 

Dr. Shah said that in his practice he’s “been telling patients to add barrier contraception” 4 weeks before they start their first dose “and at any dose adjustment.”

Zoobia Chaudhry, an obesity medicine doctor and assistant professor of medicine at Johns Hopkins University in Baltimore, recommends that “patients just make sure that the injection and medication that they take are at least 1 hour apart.”

“Most of the time, patients do take birth control before bedtime, so if the two are spaced, it should be OK,” she said.

Another option is for women to speak to their doctors about other contraceptive options like IUDs or implantable rods, where gastric absorption is not going to be an issue. 

“There’s very little research on this class of drugs,” said Emily Goodstein, a 40-year-old small-business owner in Washington, who recently switched from Ozempic to Mounjaro. “Being a person who lives in a larger body is such a horrifying experience because of the way that the world discriminates against you.”

She appreciates the feeling of being proactive that these new drugs grant. It has “opened up a bunch of opportunities for me to be seen as a full individual by the medical establishment,” she said. “I was willing to take the risk, knowing that I would be on these drugs for the rest of my life.”

In addition to being what Dr. Goodstein refers to as a guinea pig, she said she made sure that her primary care doctor was aware that she was not trying or planning to become pregnant again. (She has a 3-year-old child.) Still, her doctor mentioned only the most common side effects linked to these drugs, like nausea, vomiting, and diarrhea, and did not mention the risk of pregnancy.

“Folks are really not talking about the reproductive implications,” she said, referring to members of a Facebook group on these drugs that she belongs to. 

Like patients themselves, many doctors are just beginning to get their arms around these agents. “Awareness, education, provider involvement, and having a multidisciplinary team could help patients achieve the goals that they set out for themselves,” said Dr. Shah. 

Clear conversations are key.

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

For women who are obese, daily life is wrought with landmines. Whether it’s the challenges of air travel because plane seats are too small, the need to shield themselves from the world’s discriminating eyes, or the great lengths many will go to achieve better health and the promise of longevity, navigating life as an obese person requires a thick skin.

So, it’s no wonder so many are willing to pay more than $1,000 a month out of pocket to get their hands on drugs like semaglutide (Ozempic and Wegovy) or tirzepatide (Mounjaro). The benefits of these drugs, which are part of a new class called glucagonlike peptide–1 (GLP-1) receptor agonists, include significant and rapid weight loss, blood sugar control, and improved life quality; they are unprecedented in a setting where surgery has long been considered the most effective long-term option.

On the flip side, the desire for rapid weight loss and better blood sugar control also comes with an unexpected cost. Many women living with obesity who take oral contraceptives are unaware that these drugs – especially Mounjaro – can interfere with the absorption of birth control pills and how well they work, making an unintended pregnancy more likely.

Neel Shah, MD, an endocrinologist and associate professor at the University of Texas Health Science Center at Houston, said he has had several patients become pregnant without intending to. 

“It was when Mounjaro came out on the market when we started using it,” he said of the drug the Food and Drug Administration approved for type 2 diabetes in 2022. “It [the warning] was in the product insert, but clinically speaking, I don’t know if it was at the top of providers’ minds when they were prescribing Mounjaro.”

When asked if he believed that we were going to be seeing a significant increase in so-called Mounjaro babies, Dr. Shah was sure in his response. 

“Absolutely. We will because the sheer volume [of patients] will increase,” he said.
 

It’s all in the gut

One of the ways that drugs like Mounjaro work is by delaying the time that it takes for food to move from the stomach to the small intestine. Although data are still evolving, it is believed that this process – delayed gastric emptying – may affect the absorption of birth control pills. 

Dr. Shah said another theory is that vomiting, which is a common side effect of these types of drugs, also affects the pills’ ability to prevent pregnancy. 

And “there’s a prolonged period of ramping up the dose because of the GI side effects,” said Pinar Kodaman, MD, PhD, a reproductive endocrinologist and assistant professor of gynecology at Yale University in New Haven, Conn. 

“Initially, at the lowest dose, there may not be a lot of potential effect on absorption and gastric emptying. But as the dose goes up, it becomes more common, and it can cause diarrhea, which is another condition that can affect the absorption of any medication,” she said.
 

Unanticipated outcomes, extra prevention

Roughly 42% of women in the United States are obese, 40% of whom are between the ages of 20 and 39. Although these new drugs can improve fertility outcomes for women who are obese (especially those with polycystic ovary syndrome, or PCOS), only one – Mounjaro – currently carries a warning about birth control pill effectiveness on its label. Unfortunately, it appears that some doctors are unaware or not counseling patients about this risk, and the data are unclear about whether other drugs in this class, like Ozempic and Wegovy, have the same risks. 

“To date, it hasn’t been a typical thing that we counsel about,” said Dr. Kodaman. “It’s all fairly new, but when we have patients on birth control pills, we do review other medications that they are on because some can affect efficacy, and it’s something to keep in mind.”

It’s also unclear if other forms of birth control – for example, birth control patches that deliver through the skin – might carry similar pregnancy risks. Dr. Shah said some of his patients who became pregnant without intending to were using these patches. This raises even more questions, since they deliver drugs through the skin directly into the bloodstream and not through the GI system. 

What can women do to help ensure that they don’t become pregnant while using these drugs? 

“I really think that if patients want to protect themselves from an unplanned pregnancy, that as soon as they start the GLP receptor agonists, it wouldn’t be a bad idea to use condoms, because the onset of action is pretty quick,” said Dr. Kodaman, noting also that “at the lowest dose there may not be a lot of potential effect on gastric emptying. But as the dose goes up, it becomes much more common or can cause diarrhea.” 

Dr. Shah said that in his practice he’s “been telling patients to add barrier contraception” 4 weeks before they start their first dose “and at any dose adjustment.”

Zoobia Chaudhry, an obesity medicine doctor and assistant professor of medicine at Johns Hopkins University in Baltimore, recommends that “patients just make sure that the injection and medication that they take are at least 1 hour apart.”

“Most of the time, patients do take birth control before bedtime, so if the two are spaced, it should be OK,” she said.

Another option is for women to speak to their doctors about other contraceptive options like IUDs or implantable rods, where gastric absorption is not going to be an issue. 

“There’s very little research on this class of drugs,” said Emily Goodstein, a 40-year-old small-business owner in Washington, who recently switched from Ozempic to Mounjaro. “Being a person who lives in a larger body is such a horrifying experience because of the way that the world discriminates against you.”

She appreciates the feeling of being proactive that these new drugs grant. It has “opened up a bunch of opportunities for me to be seen as a full individual by the medical establishment,” she said. “I was willing to take the risk, knowing that I would be on these drugs for the rest of my life.”

In addition to being what Dr. Goodstein refers to as a guinea pig, she said she made sure that her primary care doctor was aware that she was not trying or planning to become pregnant again. (She has a 3-year-old child.) Still, her doctor mentioned only the most common side effects linked to these drugs, like nausea, vomiting, and diarrhea, and did not mention the risk of pregnancy.

“Folks are really not talking about the reproductive implications,” she said, referring to members of a Facebook group on these drugs that she belongs to. 

Like patients themselves, many doctors are just beginning to get their arms around these agents. “Awareness, education, provider involvement, and having a multidisciplinary team could help patients achieve the goals that they set out for themselves,” said Dr. Shah. 

Clear conversations are key.

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

For women who are obese, daily life is wrought with landmines. Whether it’s the challenges of air travel because plane seats are too small, the need to shield themselves from the world’s discriminating eyes, or the great lengths many will go to achieve better health and the promise of longevity, navigating life as an obese person requires a thick skin.

So, it’s no wonder so many are willing to pay more than $1,000 a month out of pocket to get their hands on drugs like semaglutide (Ozempic and Wegovy) or tirzepatide (Mounjaro). The benefits of these drugs, which are part of a new class called glucagonlike peptide–1 (GLP-1) receptor agonists, include significant and rapid weight loss, blood sugar control, and improved life quality; they are unprecedented in a setting where surgery has long been considered the most effective long-term option.

On the flip side, the desire for rapid weight loss and better blood sugar control also comes with an unexpected cost. Many women living with obesity who take oral contraceptives are unaware that these drugs – especially Mounjaro – can interfere with the absorption of birth control pills and how well they work, making an unintended pregnancy more likely.

Neel Shah, MD, an endocrinologist and associate professor at the University of Texas Health Science Center at Houston, said he has had several patients become pregnant without intending to. 

“It was when Mounjaro came out on the market when we started using it,” he said of the drug the Food and Drug Administration approved for type 2 diabetes in 2022. “It [the warning] was in the product insert, but clinically speaking, I don’t know if it was at the top of providers’ minds when they were prescribing Mounjaro.”

When asked if he believed that we were going to be seeing a significant increase in so-called Mounjaro babies, Dr. Shah was sure in his response. 

“Absolutely. We will because the sheer volume [of patients] will increase,” he said.
 

It’s all in the gut

One of the ways that drugs like Mounjaro work is by delaying the time that it takes for food to move from the stomach to the small intestine. Although data are still evolving, it is believed that this process – delayed gastric emptying – may affect the absorption of birth control pills. 

Dr. Shah said another theory is that vomiting, which is a common side effect of these types of drugs, also affects the pills’ ability to prevent pregnancy. 

And “there’s a prolonged period of ramping up the dose because of the GI side effects,” said Pinar Kodaman, MD, PhD, a reproductive endocrinologist and assistant professor of gynecology at Yale University in New Haven, Conn. 

“Initially, at the lowest dose, there may not be a lot of potential effect on absorption and gastric emptying. But as the dose goes up, it becomes more common, and it can cause diarrhea, which is another condition that can affect the absorption of any medication,” she said.
 

Unanticipated outcomes, extra prevention

Roughly 42% of women in the United States are obese, 40% of whom are between the ages of 20 and 39. Although these new drugs can improve fertility outcomes for women who are obese (especially those with polycystic ovary syndrome, or PCOS), only one – Mounjaro – currently carries a warning about birth control pill effectiveness on its label. Unfortunately, it appears that some doctors are unaware or not counseling patients about this risk, and the data are unclear about whether other drugs in this class, like Ozempic and Wegovy, have the same risks. 

“To date, it hasn’t been a typical thing that we counsel about,” said Dr. Kodaman. “It’s all fairly new, but when we have patients on birth control pills, we do review other medications that they are on because some can affect efficacy, and it’s something to keep in mind.”

It’s also unclear if other forms of birth control – for example, birth control patches that deliver through the skin – might carry similar pregnancy risks. Dr. Shah said some of his patients who became pregnant without intending to were using these patches. This raises even more questions, since they deliver drugs through the skin directly into the bloodstream and not through the GI system. 

What can women do to help ensure that they don’t become pregnant while using these drugs? 

“I really think that if patients want to protect themselves from an unplanned pregnancy, that as soon as they start the GLP receptor agonists, it wouldn’t be a bad idea to use condoms, because the onset of action is pretty quick,” said Dr. Kodaman, noting also that “at the lowest dose there may not be a lot of potential effect on gastric emptying. But as the dose goes up, it becomes much more common or can cause diarrhea.” 

Dr. Shah said that in his practice he’s “been telling patients to add barrier contraception” 4 weeks before they start their first dose “and at any dose adjustment.”

Zoobia Chaudhry, an obesity medicine doctor and assistant professor of medicine at Johns Hopkins University in Baltimore, recommends that “patients just make sure that the injection and medication that they take are at least 1 hour apart.”

“Most of the time, patients do take birth control before bedtime, so if the two are spaced, it should be OK,” she said.

Another option is for women to speak to their doctors about other contraceptive options like IUDs or implantable rods, where gastric absorption is not going to be an issue. 

“There’s very little research on this class of drugs,” said Emily Goodstein, a 40-year-old small-business owner in Washington, who recently switched from Ozempic to Mounjaro. “Being a person who lives in a larger body is such a horrifying experience because of the way that the world discriminates against you.”

She appreciates the feeling of being proactive that these new drugs grant. It has “opened up a bunch of opportunities for me to be seen as a full individual by the medical establishment,” she said. “I was willing to take the risk, knowing that I would be on these drugs for the rest of my life.”

In addition to being what Dr. Goodstein refers to as a guinea pig, she said she made sure that her primary care doctor was aware that she was not trying or planning to become pregnant again. (She has a 3-year-old child.) Still, her doctor mentioned only the most common side effects linked to these drugs, like nausea, vomiting, and diarrhea, and did not mention the risk of pregnancy.

“Folks are really not talking about the reproductive implications,” she said, referring to members of a Facebook group on these drugs that she belongs to. 

Like patients themselves, many doctors are just beginning to get their arms around these agents. “Awareness, education, provider involvement, and having a multidisciplinary team could help patients achieve the goals that they set out for themselves,” said Dr. Shah. 

Clear conversations are key.

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

Obesity is a major factor affecting the health of many Americans. It is estimated by the Centers for Disease Control and Prevention that 41% of adults and 19.7% of children in our country now meet the criteria for being obese. Obesity costs the United States approximately $147 billion annually in health care costs. While these numbers are staggering, they continue to rise.

The recent craze over medications such as Ozempic, Wegovy, and Mounjaro shows how eager people are to lose weight. Yet, many of them face bias, not just in their daily lives, but from health care professionals who should do better. No one should feel stigmatized when they come for medical help. This just drives away patients who need us and who may then suffer more severe consequences of obesity-related illnesses.

Earlier this year, the American Association of Clinical Endocrinology issued a consensus statement on the role stigma and weight bias play in the management of obesity. They proposed a staging system to address the severity of obesity and suggested stigma and bias should be assessed in all patients.

While we are good at diagnosing obesity, many of us fail at addressing it empathetically with patients. I’ve seen many patients cry about past encounters they’ve had in the health care system. We need to address the emotional effect that obesity has as well as the physical complications.

Obesity is a major contributor to many diseases such as diabetes and heart disease, but we are finding it also plays a role in other diseases such as certain cancers. Treating obesity is imperative to prevent these diseases as well as to promote better treatment outcomes. We’ve all seen the diabetic patient lose weight and have their blood glucose levels come under control.

Many patients have tried hard to lose weight yet health care providers talk to them as if they haven’t made any efforts. This is very frustrating for patients. Simply telling a patient to diet and lose weight is a setup for failure. We need to address their past efforts and see what has worked and what hasn’t. Redoing the same thing over and over again is not a recipe for success.

Additionally, the focus on “diet and exercise” fails to account for emotional factors that may be contributing to a person’s obesity. Some people eat when they are stressed or depressed. It can become a habit or even an addiction. If this contributor to obesity isn’t fixed, nothing will work.

However, no medication will work well without the basic building blocks of diet and exercise. Routinely prescribing weight-loss medications without discussing diet and exercise will not result in much weight loss. Some patients simply don’t know how to eat healthfully or what they should do for exercise. A little education can go a long way. Ancillary staff, such as nutritionists or diabetic counselors, can help and free up the doctor’s time. In small practices, we can’t afford to provide those services in house but we should learn where patients can go for these services.

The AACE guidelines do a great job staging obesity. The guidelines make it easier to measure progress and decide on treatment plans. With this system, it is no longer necessary to use terms such as “excess weight” or “morbid obesity.” Patients already know they are overweight. What they need to know are clear steps so that they can reach goals. These guidelines greatly assist with providing those steps.

Most of us can do better when treating patients with obesity, We are probably not even aware of the times we have been guilty of stigmatization or weight bias. When we start treating obesity as a serious medical problem rather than something that’s the fault of the patient, it becomes much easier. When we remind ourselves what can happen to our patients when we fail to treat their obesity, we can become more serious about trying to help them reverse this critical medical problem. Bring an end to throwing out a “lose weight” or “eat healthier” suggestion to our already stressed patients. In order to address the obesity crisis that is here, we need to look inside ourselves and ask how we are going to contribute to the solution.
 

Dr. Girgis practices family medicine in South River, N.J., and is a clinical assistant of medicine at Robert Wood Johnson Medical School, New Brunswick, N.J.

Obesity is a major factor affecting the health of many Americans. It is estimated by the Centers for Disease Control and Prevention that 41% of adults and 19.7% of children in our country now meet the criteria for being obese. Obesity costs the United States approximately $147 billion annually in health care costs. While these numbers are staggering, they continue to rise.

The recent craze over medications such as Ozempic, Wegovy, and Mounjaro shows how eager people are to lose weight. Yet, many of them face bias, not just in their daily lives, but from health care professionals who should do better. No one should feel stigmatized when they come for medical help. This just drives away patients who need us and who may then suffer more severe consequences of obesity-related illnesses.

Earlier this year, the American Association of Clinical Endocrinology issued a consensus statement on the role stigma and weight bias play in the management of obesity. They proposed a staging system to address the severity of obesity and suggested stigma and bias should be assessed in all patients.

While we are good at diagnosing obesity, many of us fail at addressing it empathetically with patients. I’ve seen many patients cry about past encounters they’ve had in the health care system. We need to address the emotional effect that obesity has as well as the physical complications.

Obesity is a major contributor to many diseases such as diabetes and heart disease, but we are finding it also plays a role in other diseases such as certain cancers. Treating obesity is imperative to prevent these diseases as well as to promote better treatment outcomes. We’ve all seen the diabetic patient lose weight and have their blood glucose levels come under control.

Many patients have tried hard to lose weight yet health care providers talk to them as if they haven’t made any efforts. This is very frustrating for patients. Simply telling a patient to diet and lose weight is a setup for failure. We need to address their past efforts and see what has worked and what hasn’t. Redoing the same thing over and over again is not a recipe for success.

Additionally, the focus on “diet and exercise” fails to account for emotional factors that may be contributing to a person’s obesity. Some people eat when they are stressed or depressed. It can become a habit or even an addiction. If this contributor to obesity isn’t fixed, nothing will work.

However, no medication will work well without the basic building blocks of diet and exercise. Routinely prescribing weight-loss medications without discussing diet and exercise will not result in much weight loss. Some patients simply don’t know how to eat healthfully or what they should do for exercise. A little education can go a long way. Ancillary staff, such as nutritionists or diabetic counselors, can help and free up the doctor’s time. In small practices, we can’t afford to provide those services in house but we should learn where patients can go for these services.

The AACE guidelines do a great job staging obesity. The guidelines make it easier to measure progress and decide on treatment plans. With this system, it is no longer necessary to use terms such as “excess weight” or “morbid obesity.” Patients already know they are overweight. What they need to know are clear steps so that they can reach goals. These guidelines greatly assist with providing those steps.

Most of us can do better when treating patients with obesity, We are probably not even aware of the times we have been guilty of stigmatization or weight bias. When we start treating obesity as a serious medical problem rather than something that’s the fault of the patient, it becomes much easier. When we remind ourselves what can happen to our patients when we fail to treat their obesity, we can become more serious about trying to help them reverse this critical medical problem. Bring an end to throwing out a “lose weight” or “eat healthier” suggestion to our already stressed patients. In order to address the obesity crisis that is here, we need to look inside ourselves and ask how we are going to contribute to the solution.
 

Dr. Girgis practices family medicine in South River, N.J., and is a clinical assistant of medicine at Robert Wood Johnson Medical School, New Brunswick, N.J.

Obesity is a major factor affecting the health of many Americans. It is estimated by the Centers for Disease Control and Prevention that 41% of adults and 19.7% of children in our country now meet the criteria for being obese. Obesity costs the United States approximately $147 billion annually in health care costs. While these numbers are staggering, they continue to rise.

The recent craze over medications such as Ozempic, Wegovy, and Mounjaro shows how eager people are to lose weight. Yet, many of them face bias, not just in their daily lives, but from health care professionals who should do better. No one should feel stigmatized when they come for medical help. This just drives away patients who need us and who may then suffer more severe consequences of obesity-related illnesses.

Earlier this year, the American Association of Clinical Endocrinology issued a consensus statement on the role stigma and weight bias play in the management of obesity. They proposed a staging system to address the severity of obesity and suggested stigma and bias should be assessed in all patients.

While we are good at diagnosing obesity, many of us fail at addressing it empathetically with patients. I’ve seen many patients cry about past encounters they’ve had in the health care system. We need to address the emotional effect that obesity has as well as the physical complications.

Obesity is a major contributor to many diseases such as diabetes and heart disease, but we are finding it also plays a role in other diseases such as certain cancers. Treating obesity is imperative to prevent these diseases as well as to promote better treatment outcomes. We’ve all seen the diabetic patient lose weight and have their blood glucose levels come under control.

Many patients have tried hard to lose weight yet health care providers talk to them as if they haven’t made any efforts. This is very frustrating for patients. Simply telling a patient to diet and lose weight is a setup for failure. We need to address their past efforts and see what has worked and what hasn’t. Redoing the same thing over and over again is not a recipe for success.

Additionally, the focus on “diet and exercise” fails to account for emotional factors that may be contributing to a person’s obesity. Some people eat when they are stressed or depressed. It can become a habit or even an addiction. If this contributor to obesity isn’t fixed, nothing will work.

However, no medication will work well without the basic building blocks of diet and exercise. Routinely prescribing weight-loss medications without discussing diet and exercise will not result in much weight loss. Some patients simply don’t know how to eat healthfully or what they should do for exercise. A little education can go a long way. Ancillary staff, such as nutritionists or diabetic counselors, can help and free up the doctor’s time. In small practices, we can’t afford to provide those services in house but we should learn where patients can go for these services.

The AACE guidelines do a great job staging obesity. The guidelines make it easier to measure progress and decide on treatment plans. With this system, it is no longer necessary to use terms such as “excess weight” or “morbid obesity.” Patients already know they are overweight. What they need to know are clear steps so that they can reach goals. These guidelines greatly assist with providing those steps.

Most of us can do better when treating patients with obesity, We are probably not even aware of the times we have been guilty of stigmatization or weight bias. When we start treating obesity as a serious medical problem rather than something that’s the fault of the patient, it becomes much easier. When we remind ourselves what can happen to our patients when we fail to treat their obesity, we can become more serious about trying to help them reverse this critical medical problem. Bring an end to throwing out a “lose weight” or “eat healthier” suggestion to our already stressed patients. In order to address the obesity crisis that is here, we need to look inside ourselves and ask how we are going to contribute to the solution.
 

Dr. Girgis practices family medicine in South River, N.J., and is a clinical assistant of medicine at Robert Wood Johnson Medical School, New Brunswick, N.J.

You can’t argue with success, unless you are an insurance company faced with covering medications shown to improve obesity.

The ability of drugs originally designed for diabetes management to reduce body weight has spiked demand and taxed supplies, according to the U.S. Food and Drug Administration, which included semaglutide (both Wegovy and Ozempic) on its Drug Shortages List as of May 31, 2023.

Meanwhile, clinicians and patients report that insurance companies are pushing back against coverage of these medications that mimic glucagon-like peptide 1 (GLP-1) because of the costs. A recent study conducted by Prime Therapeutics, a pharmacy benefit management organization, showed that individuals who started GLP-1 drugs for weight loss and who were adherent to the treatment averaged a 59% increase in health care costs after 1 year; for those in a subgroup analysis who were treatment adherent, the increase in health care costs was 98%.

“Insurance coverage for obesity treatment is challenging, particularly regarding medications,” said Scott Kahan, MD, director of the National Center for Weight and Wellness at George Washington University, Washington, in an interview. Employers must opt in for patients to have coverage for these medications; therefore, relatively few patients have had access at reasonable out-of-pocket costs, he said.

For example, the University of Texas stated on its website that its prescription drug plans will no longer cover drugs with the active ingredients semaglutide (Wegovy) or liraglutide (Saxenda) for weight loss as of Sept. 1, 2023. Both products are FDA-approved for weight management, whereas the equally popular Ozempic is currently approved only as a treatment for diabetes. The school’s website noted that the current price of the drugs, which cost the plan more than $5 million per month as of May 2023, outstrips the most expensive cancer agents.

The University of Texas also found that among its patients, the compliance rate for those who began Wegovy or Saxenda for weight loss was only 46%, which was not enough to justify continued coverage. The plan advised patients to approach their insurers directly.

Eventually, more information may prompt more support from insurance across a range of medications, Dr. Kahan noted. “Most insurers are wanting cost-effectiveness data in order to support their investments in broader coverage,” he said.

However, costs do vary with and without insurance; some medications are less expensive than others without significant differences in outcomes, so encourage patients to explore all the options and not just one brand, Dr. Kahan said.
 

Educate patients on plan details

Clinicians can’t guarantee coverage, but they can offer guidance to their patients, according to said Andrew Kraftson, MD, an endocrinologist and internal medicine physician at the University of Michigan, Ann Arbor, who specializes in the care of people with obesity.

Unfortunately, some of the challenges to obtaining insurance coverage for weight-loss medications lie in the plan details because some insurers have a blanket prohibition against the use of weight-loss medications, he said.

If patients did not look for this particular aspect of coverage at the time of enrollment in their chosen plan, they may not have known about this exclusion, and they are disappointed to find that they are ineligible for weight-loss medications despite medical circumstances, Dr. Kraftson said in an interview.

If weight-loss medications are covered, prior authorization often is required, Dr. Kraftson added.

“Unfortunately, the requirements vary from insurer to insurer, and this can present challenges for the busy clinicians who may not have dedicated staff to assist with these authorizations. Sometimes, the requirements are exactingly particular, and denials can commonly occur,” he said.

Some insurers will cover weight-loss medications for an initial period then require a certain degree of weight loss before renewing the approval, Dr. Kraftson said.

“While this is reasonable, sometimes it is necessary to titrate a medication more slowly to help a patient get used to the medicine, so they may not reach the required weight loss in the time required by the insurer,” he said. “As such, the medical professional is ‘punished’ for trying to be safe and patient-sensitive, and the patient may lose coverage of the medicine.”

Clinicians can help patients increase their chances for insurance coverage by providing a patient instruction guide to walk them through the steps that allow the patient to make inquiries with their own insurer, Dr. Kraftson said.

This guide should instruct patients on how to read their prescription coverage card to correctly contact their insurer, along with a guide to medical coverage terminology.

Lauren Oshman, MD, also of the University of Michigan, heads a collaborative quality initiative in the state known as Michigan Collaborative for Type 2 Diabetes (MCT2D). Dr. Oshman and her colleagues created a user-friendly list of terms to help patients understand their plans and better advocate for coverage (see below). The list was designed to guide patients with diabetes but applies to any medication.
 

Learn the lingo (common insurance terms and definitions)

• Deductible: Predetermined amount that must be paid annually before insurance pays for anything.
• Copayment: Set amount paid for a prescription.
• Coinsurance: Amount you pay after your deductible is met. Your insurance pays their portion. Coinsurance only applies to prescriptions and services covered under your health plan.
• Medication tier: Levels of insurance medication coverage; you play a smaller amount for a lower tier and a higher amount for a higher tier.
• Out-of-pocket max: Annual limit on what you pay before insurance covers 100% of covered services. Deductibles, copayment, and coinsurance all apply toward your out-of-pocket maximum.
• Prior authorization: Request made by your doctor to insurance company for coverage of a medication.
• Quantity limit: Limitation on the number of pills covered for a period of time.
• Step therapy: Medication you must have tried prior to approval of a nonpreferred medication, typically prior to trying a more expensive medication.

(Source: Learn the Lingo: A Guide to Common Insurance Terms and Definitions, courtesy of Lauren Oshman, MD, and MCT2D)

Also, make sure patients understand that they need to find out whether they have a deductible and if so, how much it is, Dr. Kraftson said.

Pros and cons of compounding

Compounded drugs are not approved by the FDA; however, that does not mean they are not available, and patients may pursue them as an option for weight-loss drugs.

In a statement issued on May 31, 2023, the FDA cited reports of adverse events associated with the use of compounded weight-loss drugs as a lower-cost alternative to the approved product. The FDA emphasized that the agency does not review compounded versions of weight-loss drugs for safety, efficacy, or quality.

Dr. Kraftson cited the lack of quality control, transparency, and safety data as reasons to discourage his patients from pursuing compounded medications.

“If a patient insists on pursuing it, then I review the position statement from the Obesity Medicine Association,” he said. The OMA statement recommends that anti-obesity medications undergo clinical trials and noted the lack of FDA oversight on these products. The OMA statement also advises compounded peptides to be “legally produced by companies whose identities are readily disclosed, and who have documented manufacturing processes compliant with oversight by applicable regulatory agencies.”
 

Tracking outcomes might boost coverage

Robust data on the long-term cost-effectiveness of weight-loss medications are lacking, although this is changing, Dr. Kraftson said. A 2022 study published last year in the Journal of Managed Care and Specialty Pharmacy showed that a 2.4-mg dose of semaglutide was cost-effective, compared with no treatment, diet and exercise, and other anti-obesity medications based on gains in quality of life.

“Regardless, insurers are not as motivated by long-term cost effectiveness,” Dr. Kraftson said. Insurers are accustomed to employee turnover and are more likely to be motivated by short-term costs and benefits, he said. “Obesity treatment provides some short-term benefit, but the majority of the benefit can be experienced when we look at the long-term horizon,” he said.

Looking ahead, “We need better ways to account for the myriad benefits experienced by patients with successful weight control beyond what is currently measured as metrics of success, including better ways to qualify and quantify quality-of-life benefits,” Dr. Kraftson said.

Also, clinicians should address the stigma associated with obesity, Dr. Kraftson said.

“We would not see the spate of coverage restrictions if we were talking about heart disease or cancer; insurers can get away with this because obesity is held to a different standard and patients with obesity are used to being undertreated and mistreated by the medical community and society,” he said. “We need to better account for the true costs of excess weight/obesity beyond what is traditionally accepted. This would help make the case for the cost-effective nature of treatment.”

Dr. Kraftson and Dr. Oshman disclosed no relevant financial relationships. Dr. Kahan had no financial conflicts and serves on the Medscape Editorial Advisory Board.

You can’t argue with success, unless you are an insurance company faced with covering medications shown to improve obesity.

The ability of drugs originally designed for diabetes management to reduce body weight has spiked demand and taxed supplies, according to the U.S. Food and Drug Administration, which included semaglutide (both Wegovy and Ozempic) on its Drug Shortages List as of May 31, 2023.

Meanwhile, clinicians and patients report that insurance companies are pushing back against coverage of these medications that mimic glucagon-like peptide 1 (GLP-1) because of the costs. A recent study conducted by Prime Therapeutics, a pharmacy benefit management organization, showed that individuals who started GLP-1 drugs for weight loss and who were adherent to the treatment averaged a 59% increase in health care costs after 1 year; for those in a subgroup analysis who were treatment adherent, the increase in health care costs was 98%.

“Insurance coverage for obesity treatment is challenging, particularly regarding medications,” said Scott Kahan, MD, director of the National Center for Weight and Wellness at George Washington University, Washington, in an interview. Employers must opt in for patients to have coverage for these medications; therefore, relatively few patients have had access at reasonable out-of-pocket costs, he said.

For example, the University of Texas stated on its website that its prescription drug plans will no longer cover drugs with the active ingredients semaglutide (Wegovy) or liraglutide (Saxenda) for weight loss as of Sept. 1, 2023. Both products are FDA-approved for weight management, whereas the equally popular Ozempic is currently approved only as a treatment for diabetes. The school’s website noted that the current price of the drugs, which cost the plan more than $5 million per month as of May 2023, outstrips the most expensive cancer agents.

The University of Texas also found that among its patients, the compliance rate for those who began Wegovy or Saxenda for weight loss was only 46%, which was not enough to justify continued coverage. The plan advised patients to approach their insurers directly.

Eventually, more information may prompt more support from insurance across a range of medications, Dr. Kahan noted. “Most insurers are wanting cost-effectiveness data in order to support their investments in broader coverage,” he said.

However, costs do vary with and without insurance; some medications are less expensive than others without significant differences in outcomes, so encourage patients to explore all the options and not just one brand, Dr. Kahan said.
 

Educate patients on plan details

Clinicians can’t guarantee coverage, but they can offer guidance to their patients, according to said Andrew Kraftson, MD, an endocrinologist and internal medicine physician at the University of Michigan, Ann Arbor, who specializes in the care of people with obesity.

Unfortunately, some of the challenges to obtaining insurance coverage for weight-loss medications lie in the plan details because some insurers have a blanket prohibition against the use of weight-loss medications, he said.

If patients did not look for this particular aspect of coverage at the time of enrollment in their chosen plan, they may not have known about this exclusion, and they are disappointed to find that they are ineligible for weight-loss medications despite medical circumstances, Dr. Kraftson said in an interview.

If weight-loss medications are covered, prior authorization often is required, Dr. Kraftson added.

“Unfortunately, the requirements vary from insurer to insurer, and this can present challenges for the busy clinicians who may not have dedicated staff to assist with these authorizations. Sometimes, the requirements are exactingly particular, and denials can commonly occur,” he said.

Some insurers will cover weight-loss medications for an initial period then require a certain degree of weight loss before renewing the approval, Dr. Kraftson said.

“While this is reasonable, sometimes it is necessary to titrate a medication more slowly to help a patient get used to the medicine, so they may not reach the required weight loss in the time required by the insurer,” he said. “As such, the medical professional is ‘punished’ for trying to be safe and patient-sensitive, and the patient may lose coverage of the medicine.”

Clinicians can help patients increase their chances for insurance coverage by providing a patient instruction guide to walk them through the steps that allow the patient to make inquiries with their own insurer, Dr. Kraftson said.

This guide should instruct patients on how to read their prescription coverage card to correctly contact their insurer, along with a guide to medical coverage terminology.

Lauren Oshman, MD, also of the University of Michigan, heads a collaborative quality initiative in the state known as Michigan Collaborative for Type 2 Diabetes (MCT2D). Dr. Oshman and her colleagues created a user-friendly list of terms to help patients understand their plans and better advocate for coverage (see below). The list was designed to guide patients with diabetes but applies to any medication.
 

Learn the lingo (common insurance terms and definitions)

• Deductible: Predetermined amount that must be paid annually before insurance pays for anything.
• Copayment: Set amount paid for a prescription.
• Coinsurance: Amount you pay after your deductible is met. Your insurance pays their portion. Coinsurance only applies to prescriptions and services covered under your health plan.
• Medication tier: Levels of insurance medication coverage; you play a smaller amount for a lower tier and a higher amount for a higher tier.
• Out-of-pocket max: Annual limit on what you pay before insurance covers 100% of covered services. Deductibles, copayment, and coinsurance all apply toward your out-of-pocket maximum.
• Prior authorization: Request made by your doctor to insurance company for coverage of a medication.
• Quantity limit: Limitation on the number of pills covered for a period of time.
• Step therapy: Medication you must have tried prior to approval of a nonpreferred medication, typically prior to trying a more expensive medication.

(Source: Learn the Lingo: A Guide to Common Insurance Terms and Definitions, courtesy of Lauren Oshman, MD, and MCT2D)

Also, make sure patients understand that they need to find out whether they have a deductible and if so, how much it is, Dr. Kraftson said.

Pros and cons of compounding

Compounded drugs are not approved by the FDA; however, that does not mean they are not available, and patients may pursue them as an option for weight-loss drugs.

In a statement issued on May 31, 2023, the FDA cited reports of adverse events associated with the use of compounded weight-loss drugs as a lower-cost alternative to the approved product. The FDA emphasized that the agency does not review compounded versions of weight-loss drugs for safety, efficacy, or quality.

Dr. Kraftson cited the lack of quality control, transparency, and safety data as reasons to discourage his patients from pursuing compounded medications.

“If a patient insists on pursuing it, then I review the position statement from the Obesity Medicine Association,” he said. The OMA statement recommends that anti-obesity medications undergo clinical trials and noted the lack of FDA oversight on these products. The OMA statement also advises compounded peptides to be “legally produced by companies whose identities are readily disclosed, and who have documented manufacturing processes compliant with oversight by applicable regulatory agencies.”
 

Tracking outcomes might boost coverage

Robust data on the long-term cost-effectiveness of weight-loss medications are lacking, although this is changing, Dr. Kraftson said. A 2022 study published last year in the Journal of Managed Care and Specialty Pharmacy showed that a 2.4-mg dose of semaglutide was cost-effective, compared with no treatment, diet and exercise, and other anti-obesity medications based on gains in quality of life.

“Regardless, insurers are not as motivated by long-term cost effectiveness,” Dr. Kraftson said. Insurers are accustomed to employee turnover and are more likely to be motivated by short-term costs and benefits, he said. “Obesity treatment provides some short-term benefit, but the majority of the benefit can be experienced when we look at the long-term horizon,” he said.

Looking ahead, “We need better ways to account for the myriad benefits experienced by patients with successful weight control beyond what is currently measured as metrics of success, including better ways to qualify and quantify quality-of-life benefits,” Dr. Kraftson said.

Also, clinicians should address the stigma associated with obesity, Dr. Kraftson said.

“We would not see the spate of coverage restrictions if we were talking about heart disease or cancer; insurers can get away with this because obesity is held to a different standard and patients with obesity are used to being undertreated and mistreated by the medical community and society,” he said. “We need to better account for the true costs of excess weight/obesity beyond what is traditionally accepted. This would help make the case for the cost-effective nature of treatment.”

Dr. Kraftson and Dr. Oshman disclosed no relevant financial relationships. Dr. Kahan had no financial conflicts and serves on the Medscape Editorial Advisory Board.

You can’t argue with success, unless you are an insurance company faced with covering medications shown to improve obesity.

The ability of drugs originally designed for diabetes management to reduce body weight has spiked demand and taxed supplies, according to the U.S. Food and Drug Administration, which included semaglutide (both Wegovy and Ozempic) on its Drug Shortages List as of May 31, 2023.

Meanwhile, clinicians and patients report that insurance companies are pushing back against coverage of these medications that mimic glucagon-like peptide 1 (GLP-1) because of the costs. A recent study conducted by Prime Therapeutics, a pharmacy benefit management organization, showed that individuals who started GLP-1 drugs for weight loss and who were adherent to the treatment averaged a 59% increase in health care costs after 1 year; for those in a subgroup analysis who were treatment adherent, the increase in health care costs was 98%.

“Insurance coverage for obesity treatment is challenging, particularly regarding medications,” said Scott Kahan, MD, director of the National Center for Weight and Wellness at George Washington University, Washington, in an interview. Employers must opt in for patients to have coverage for these medications; therefore, relatively few patients have had access at reasonable out-of-pocket costs, he said.

For example, the University of Texas stated on its website that its prescription drug plans will no longer cover drugs with the active ingredients semaglutide (Wegovy) or liraglutide (Saxenda) for weight loss as of Sept. 1, 2023. Both products are FDA-approved for weight management, whereas the equally popular Ozempic is currently approved only as a treatment for diabetes. The school’s website noted that the current price of the drugs, which cost the plan more than $5 million per month as of May 2023, outstrips the most expensive cancer agents.

The University of Texas also found that among its patients, the compliance rate for those who began Wegovy or Saxenda for weight loss was only 46%, which was not enough to justify continued coverage. The plan advised patients to approach their insurers directly.

Eventually, more information may prompt more support from insurance across a range of medications, Dr. Kahan noted. “Most insurers are wanting cost-effectiveness data in order to support their investments in broader coverage,” he said.

However, costs do vary with and without insurance; some medications are less expensive than others without significant differences in outcomes, so encourage patients to explore all the options and not just one brand, Dr. Kahan said.
 

Educate patients on plan details

Clinicians can’t guarantee coverage, but they can offer guidance to their patients, according to said Andrew Kraftson, MD, an endocrinologist and internal medicine physician at the University of Michigan, Ann Arbor, who specializes in the care of people with obesity.

Unfortunately, some of the challenges to obtaining insurance coverage for weight-loss medications lie in the plan details because some insurers have a blanket prohibition against the use of weight-loss medications, he said.

If patients did not look for this particular aspect of coverage at the time of enrollment in their chosen plan, they may not have known about this exclusion, and they are disappointed to find that they are ineligible for weight-loss medications despite medical circumstances, Dr. Kraftson said in an interview.

If weight-loss medications are covered, prior authorization often is required, Dr. Kraftson added.

“Unfortunately, the requirements vary from insurer to insurer, and this can present challenges for the busy clinicians who may not have dedicated staff to assist with these authorizations. Sometimes, the requirements are exactingly particular, and denials can commonly occur,” he said.

Some insurers will cover weight-loss medications for an initial period then require a certain degree of weight loss before renewing the approval, Dr. Kraftson said.

“While this is reasonable, sometimes it is necessary to titrate a medication more slowly to help a patient get used to the medicine, so they may not reach the required weight loss in the time required by the insurer,” he said. “As such, the medical professional is ‘punished’ for trying to be safe and patient-sensitive, and the patient may lose coverage of the medicine.”

Clinicians can help patients increase their chances for insurance coverage by providing a patient instruction guide to walk them through the steps that allow the patient to make inquiries with their own insurer, Dr. Kraftson said.

This guide should instruct patients on how to read their prescription coverage card to correctly contact their insurer, along with a guide to medical coverage terminology.

Lauren Oshman, MD, also of the University of Michigan, heads a collaborative quality initiative in the state known as Michigan Collaborative for Type 2 Diabetes (MCT2D). Dr. Oshman and her colleagues created a user-friendly list of terms to help patients understand their plans and better advocate for coverage (see below). The list was designed to guide patients with diabetes but applies to any medication.
 

Learn the lingo (common insurance terms and definitions)

• Deductible: Predetermined amount that must be paid annually before insurance pays for anything.
• Copayment: Set amount paid for a prescription.
• Coinsurance: Amount you pay after your deductible is met. Your insurance pays their portion. Coinsurance only applies to prescriptions and services covered under your health plan.
• Medication tier: Levels of insurance medication coverage; you play a smaller amount for a lower tier and a higher amount for a higher tier.
• Out-of-pocket max: Annual limit on what you pay before insurance covers 100% of covered services. Deductibles, copayment, and coinsurance all apply toward your out-of-pocket maximum.
• Prior authorization: Request made by your doctor to insurance company for coverage of a medication.
• Quantity limit: Limitation on the number of pills covered for a period of time.
• Step therapy: Medication you must have tried prior to approval of a nonpreferred medication, typically prior to trying a more expensive medication.

(Source: Learn the Lingo: A Guide to Common Insurance Terms and Definitions, courtesy of Lauren Oshman, MD, and MCT2D)

Also, make sure patients understand that they need to find out whether they have a deductible and if so, how much it is, Dr. Kraftson said.

Pros and cons of compounding

Compounded drugs are not approved by the FDA; however, that does not mean they are not available, and patients may pursue them as an option for weight-loss drugs.

In a statement issued on May 31, 2023, the FDA cited reports of adverse events associated with the use of compounded weight-loss drugs as a lower-cost alternative to the approved product. The FDA emphasized that the agency does not review compounded versions of weight-loss drugs for safety, efficacy, or quality.

Dr. Kraftson cited the lack of quality control, transparency, and safety data as reasons to discourage his patients from pursuing compounded medications.

“If a patient insists on pursuing it, then I review the position statement from the Obesity Medicine Association,” he said. The OMA statement recommends that anti-obesity medications undergo clinical trials and noted the lack of FDA oversight on these products. The OMA statement also advises compounded peptides to be “legally produced by companies whose identities are readily disclosed, and who have documented manufacturing processes compliant with oversight by applicable regulatory agencies.”
 

Tracking outcomes might boost coverage

Robust data on the long-term cost-effectiveness of weight-loss medications are lacking, although this is changing, Dr. Kraftson said. A 2022 study published last year in the Journal of Managed Care and Specialty Pharmacy showed that a 2.4-mg dose of semaglutide was cost-effective, compared with no treatment, diet and exercise, and other anti-obesity medications based on gains in quality of life.

“Regardless, insurers are not as motivated by long-term cost effectiveness,” Dr. Kraftson said. Insurers are accustomed to employee turnover and are more likely to be motivated by short-term costs and benefits, he said. “Obesity treatment provides some short-term benefit, but the majority of the benefit can be experienced when we look at the long-term horizon,” he said.

Looking ahead, “We need better ways to account for the myriad benefits experienced by patients with successful weight control beyond what is currently measured as metrics of success, including better ways to qualify and quantify quality-of-life benefits,” Dr. Kraftson said.

Also, clinicians should address the stigma associated with obesity, Dr. Kraftson said.

“We would not see the spate of coverage restrictions if we were talking about heart disease or cancer; insurers can get away with this because obesity is held to a different standard and patients with obesity are used to being undertreated and mistreated by the medical community and society,” he said. “We need to better account for the true costs of excess weight/obesity beyond what is traditionally accepted. This would help make the case for the cost-effective nature of treatment.”

Dr. Kraftson and Dr. Oshman disclosed no relevant financial relationships. Dr. Kahan had no financial conflicts and serves on the Medscape Editorial Advisory Board.

A process your body uses to stay warm in cool weather could one day lead to new therapies for obesity.

Scientists have, for the first time, mapped the precise nerve pathways that activate brown fat, or brown adipose tissue (BAT), a specialized fat that generates heat. Low temperatures kick brown fat into gear, helping the body keep its temperature and burning calories in the process.

“It has long been speculated that activating this type of fat may be useful in treating obesity and related metabolic conditions,” said Preethi Srikanthan, MD, an endocrinologist and professor of medicine who oversaw the research at the UCLA School of Medicine. “The challenge has been finding a way of selectively stimulating [it].”

Brown fat is different from the fat typically linked to obesity: the kind that accumulates around the belly, hips, and thighs. That’s white fat. White fat stores energy; brown fat burns it. That’s because brown fat cells have more mitochondria, a part of the cell that generates energy. 

After dissecting the necks of eight human cadavers, Dr. Srikanthan and her team traced the sympathetic nerve branches in the fat pad above the collarbone – where the largest depot of brown fat in adults is stored. They stained the nerves, took samples, and viewed them under a microscope. 

They found that nerves from brown fat traveled to the third and fourth cranial nerves of the brain, bundles of nerve fibers that control blinking and some eye movements.

In a previous case study, damage to these nerves appeared to block a chemical tracer from reaching brown fat. The evidence suggests that changing this nerve supply could alter brown fat activity, potentially leading to new treatments for obesity and metabolic diseases like type 2 diabetes, Dr. Srikanthan said.
 

A possible mechanism for Ozempic?

Brown fat has already been linked to at least one breakthrough in obesity treatment. Some evidence suggests that popular medications like semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro) may affect brown fat activity. These belong to a class of drugs known as glucagon-like peptide-1 (GLP-1) receptor agonists. They work by mimicking the hormone GLP-1, which is released in the gut and brain in response to eating glucose (sugary foods or drinks).

“GLP-1 agonists have been shown to increase [brown fat] activity in rodents and humans, but likely indirectly, via activation of specific regions in the brain,” explained Varman Samuel, MD, PhD, an associate professor of medicine at the Yale School of Medicine, New Haven, Conn., and chief of endocrinology for the VA Connecticut Healthcare System. 

The scientific literature is divided on this, but there is enough evidence to support further inquiry, Dr. Srikanthan said. Her team has begun a study to examine that link.
 

Opening the door to future obesity treatments

But their discovery means other new treatments could be on the horizon. 

Previous research had shown that the sympathetic nervous system drives brown fat activity. But now that the UCLA scientists have revealed the exact nerves connecting brown fat to the sympathetic nervous system, we could find ways to stimulate those pathways to activate brown fat – without stimulating the many organs (such as the heart and stomach) also connected to this vast network of nerves, Dr. Srikanthan said. 

Methods for doing that could include medication, electrical stimulation, or heat therapy, according to the study. 

Still, there is reason to temper expectations. “[Brown fat] depots, while highly metabolically active, are quite small,” Dr. Samuel said. “So, the overall contribution to whole-body energy balance in humans will likely be small.”

On the other hand, that prediction doesn’t account for what we don’t know. 

“We’re learning more about how tissues communicate with each other, beyond the release of hormones or metabolites,” Dr. Samuel said. Activating brown fat could trigger “signals that help coordinate whole-body energy metabolism.”

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

A process your body uses to stay warm in cool weather could one day lead to new therapies for obesity.

Scientists have, for the first time, mapped the precise nerve pathways that activate brown fat, or brown adipose tissue (BAT), a specialized fat that generates heat. Low temperatures kick brown fat into gear, helping the body keep its temperature and burning calories in the process.

“It has long been speculated that activating this type of fat may be useful in treating obesity and related metabolic conditions,” said Preethi Srikanthan, MD, an endocrinologist and professor of medicine who oversaw the research at the UCLA School of Medicine. “The challenge has been finding a way of selectively stimulating [it].”

Brown fat is different from the fat typically linked to obesity: the kind that accumulates around the belly, hips, and thighs. That’s white fat. White fat stores energy; brown fat burns it. That’s because brown fat cells have more mitochondria, a part of the cell that generates energy. 

After dissecting the necks of eight human cadavers, Dr. Srikanthan and her team traced the sympathetic nerve branches in the fat pad above the collarbone – where the largest depot of brown fat in adults is stored. They stained the nerves, took samples, and viewed them under a microscope. 

They found that nerves from brown fat traveled to the third and fourth cranial nerves of the brain, bundles of nerve fibers that control blinking and some eye movements.

In a previous case study, damage to these nerves appeared to block a chemical tracer from reaching brown fat. The evidence suggests that changing this nerve supply could alter brown fat activity, potentially leading to new treatments for obesity and metabolic diseases like type 2 diabetes, Dr. Srikanthan said.
 

A possible mechanism for Ozempic?

Brown fat has already been linked to at least one breakthrough in obesity treatment. Some evidence suggests that popular medications like semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro) may affect brown fat activity. These belong to a class of drugs known as glucagon-like peptide-1 (GLP-1) receptor agonists. They work by mimicking the hormone GLP-1, which is released in the gut and brain in response to eating glucose (sugary foods or drinks).

“GLP-1 agonists have been shown to increase [brown fat] activity in rodents and humans, but likely indirectly, via activation of specific regions in the brain,” explained Varman Samuel, MD, PhD, an associate professor of medicine at the Yale School of Medicine, New Haven, Conn., and chief of endocrinology for the VA Connecticut Healthcare System. 

The scientific literature is divided on this, but there is enough evidence to support further inquiry, Dr. Srikanthan said. Her team has begun a study to examine that link.
 

Opening the door to future obesity treatments

But their discovery means other new treatments could be on the horizon. 

Previous research had shown that the sympathetic nervous system drives brown fat activity. But now that the UCLA scientists have revealed the exact nerves connecting brown fat to the sympathetic nervous system, we could find ways to stimulate those pathways to activate brown fat – without stimulating the many organs (such as the heart and stomach) also connected to this vast network of nerves, Dr. Srikanthan said. 

Methods for doing that could include medication, electrical stimulation, or heat therapy, according to the study. 

Still, there is reason to temper expectations. “[Brown fat] depots, while highly metabolically active, are quite small,” Dr. Samuel said. “So, the overall contribution to whole-body energy balance in humans will likely be small.”

On the other hand, that prediction doesn’t account for what we don’t know. 

“We’re learning more about how tissues communicate with each other, beyond the release of hormones or metabolites,” Dr. Samuel said. Activating brown fat could trigger “signals that help coordinate whole-body energy metabolism.”

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

A process your body uses to stay warm in cool weather could one day lead to new therapies for obesity.

Scientists have, for the first time, mapped the precise nerve pathways that activate brown fat, or brown adipose tissue (BAT), a specialized fat that generates heat. Low temperatures kick brown fat into gear, helping the body keep its temperature and burning calories in the process.

“It has long been speculated that activating this type of fat may be useful in treating obesity and related metabolic conditions,” said Preethi Srikanthan, MD, an endocrinologist and professor of medicine who oversaw the research at the UCLA School of Medicine. “The challenge has been finding a way of selectively stimulating [it].”

Brown fat is different from the fat typically linked to obesity: the kind that accumulates around the belly, hips, and thighs. That’s white fat. White fat stores energy; brown fat burns it. That’s because brown fat cells have more mitochondria, a part of the cell that generates energy. 

After dissecting the necks of eight human cadavers, Dr. Srikanthan and her team traced the sympathetic nerve branches in the fat pad above the collarbone – where the largest depot of brown fat in adults is stored. They stained the nerves, took samples, and viewed them under a microscope. 

They found that nerves from brown fat traveled to the third and fourth cranial nerves of the brain, bundles of nerve fibers that control blinking and some eye movements.

In a previous case study, damage to these nerves appeared to block a chemical tracer from reaching brown fat. The evidence suggests that changing this nerve supply could alter brown fat activity, potentially leading to new treatments for obesity and metabolic diseases like type 2 diabetes, Dr. Srikanthan said.
 

A possible mechanism for Ozempic?

Brown fat has already been linked to at least one breakthrough in obesity treatment. Some evidence suggests that popular medications like semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro) may affect brown fat activity. These belong to a class of drugs known as glucagon-like peptide-1 (GLP-1) receptor agonists. They work by mimicking the hormone GLP-1, which is released in the gut and brain in response to eating glucose (sugary foods or drinks).

“GLP-1 agonists have been shown to increase [brown fat] activity in rodents and humans, but likely indirectly, via activation of specific regions in the brain,” explained Varman Samuel, MD, PhD, an associate professor of medicine at the Yale School of Medicine, New Haven, Conn., and chief of endocrinology for the VA Connecticut Healthcare System. 

The scientific literature is divided on this, but there is enough evidence to support further inquiry, Dr. Srikanthan said. Her team has begun a study to examine that link.
 

Opening the door to future obesity treatments

But their discovery means other new treatments could be on the horizon. 

Previous research had shown that the sympathetic nervous system drives brown fat activity. But now that the UCLA scientists have revealed the exact nerves connecting brown fat to the sympathetic nervous system, we could find ways to stimulate those pathways to activate brown fat – without stimulating the many organs (such as the heart and stomach) also connected to this vast network of nerves, Dr. Srikanthan said. 

Methods for doing that could include medication, electrical stimulation, or heat therapy, according to the study. 

Still, there is reason to temper expectations. “[Brown fat] depots, while highly metabolically active, are quite small,” Dr. Samuel said. “So, the overall contribution to whole-body energy balance in humans will likely be small.”

On the other hand, that prediction doesn’t account for what we don’t know. 

“We’re learning more about how tissues communicate with each other, beyond the release of hormones or metabolites,” Dr. Samuel said. Activating brown fat could trigger “signals that help coordinate whole-body energy metabolism.”

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

TOPLINE:

Nearly one in five adolescents are living with prediabetes, a condition where blood glucose levels are elevated, but are not high enough for a type 2 diabetes (T2D) diagnosis. According to a new study, higher levels of nonfasting glucose and hemoglobin A1c, and worsening obesity are important predictors of progression to T2D. In addition, metformin and weight stabilization may prove to be important interventions for preventing T2D in kids.

METHODOLOGY:

• Researchers did a retrospective chart review of patient data from Vanderbilt University Medical Center Pediatric Prediabetes Clinic, Nashville, Tenn., from May 2015 to August 2022.
• The study included 552 children with prediabetes, defined as abnormal blood glucose (fasting plasma glucose [FPG] ≥ 100 mg/dL, random glucose ≥ 150 mg/dL), or hemoglobin A1c equal to or greater than 5.9%.
• Based on follow-up visits, patients were classified as having progressed to T2D, or nonprogression.
• Researchers analyzed the patients’ initial visit A1c, fasting C-peptide, 2-hour glucose, fasting glucose, and body mass index (BMI), among other baseline characteristics.

TAKEAWAY:

• Thirty-six children (6.5%) progressed to T2D during the duration of the study period.
• The average time to T2D diagnosis was much longer in patients taking metformin (43 months), compared with those not taking the prescribed medication (28 months).
• Worsening obesity was strongly associated with T2D progression – patients who progressed to T2D had a higher BMI at baseline and had continued weight gain.
• A higher baseline A1c, fasting C-peptide, and 2-hour glucose were also associated with progression to T2D.
• In the multivariable analysis, both A1c and 2-hour glucose were strong independent predictors of progression.
• Fasting plasma glucose was not associated with progression to T2D.

IN PRACTICE:

“Weight stabilization and metformin therapy could be important interventions for diabetes prevention in children,” study author Ashley H. Shoemaker, MD, MSci, a pediatric endocrinologist at Vanderbilt University Medical Center in Nashville, Tenn., said in a press release.

In addition, A1c plus a nonfasting glucose may be a feasible way to identify high-risk pediatric patients in a clinical setting.
 

SOURCE:

This study was performed by Natasha Belsky, Jaclyn Tamaroff, and Ashley H. Shoemaker of the Vanderbilt University Medical Center and the Vanderbilt University School of Medicine in Nashville, Tenn. It was published October 12, 2023, in the Journal of the Endocrine Society

LIMITATIONS:

Additional patients who developed T2D may have been lost to follow-up, since the authors did not contact patients to confirm their disease status. The authors were also unable to establish racial differences in the progression to T2D because of missing data.

DISCLOSURES:

Funding for this study was provided by the National Center for Advancing Translational Sciences. One author has research contracts with Novo Nordisk and Boehringer Ingelheim.

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

TOPLINE:

Nearly one in five adolescents are living with prediabetes, a condition where blood glucose levels are elevated, but are not high enough for a type 2 diabetes (T2D) diagnosis. According to a new study, higher levels of nonfasting glucose and hemoglobin A1c, and worsening obesity are important predictors of progression to T2D. In addition, metformin and weight stabilization may prove to be important interventions for preventing T2D in kids.

METHODOLOGY:

• Researchers did a retrospective chart review of patient data from Vanderbilt University Medical Center Pediatric Prediabetes Clinic, Nashville, Tenn., from May 2015 to August 2022.
• The study included 552 children with prediabetes, defined as abnormal blood glucose (fasting plasma glucose [FPG] ≥ 100 mg/dL, random glucose ≥ 150 mg/dL), or hemoglobin A1c equal to or greater than 5.9%.
• Based on follow-up visits, patients were classified as having progressed to T2D, or nonprogression.
• Researchers analyzed the patients’ initial visit A1c, fasting C-peptide, 2-hour glucose, fasting glucose, and body mass index (BMI), among other baseline characteristics.

TAKEAWAY:

• Thirty-six children (6.5%) progressed to T2D during the duration of the study period.
• The average time to T2D diagnosis was much longer in patients taking metformin (43 months), compared with those not taking the prescribed medication (28 months).
• Worsening obesity was strongly associated with T2D progression – patients who progressed to T2D had a higher BMI at baseline and had continued weight gain.
• A higher baseline A1c, fasting C-peptide, and 2-hour glucose were also associated with progression to T2D.
• In the multivariable analysis, both A1c and 2-hour glucose were strong independent predictors of progression.
• Fasting plasma glucose was not associated with progression to T2D.

IN PRACTICE:

“Weight stabilization and metformin therapy could be important interventions for diabetes prevention in children,” study author Ashley H. Shoemaker, MD, MSci, a pediatric endocrinologist at Vanderbilt University Medical Center in Nashville, Tenn., said in a press release.

In addition, A1c plus a nonfasting glucose may be a feasible way to identify high-risk pediatric patients in a clinical setting.
 

SOURCE:

This study was performed by Natasha Belsky, Jaclyn Tamaroff, and Ashley H. Shoemaker of the Vanderbilt University Medical Center and the Vanderbilt University School of Medicine in Nashville, Tenn. It was published October 12, 2023, in the Journal of the Endocrine Society

LIMITATIONS:

Additional patients who developed T2D may have been lost to follow-up, since the authors did not contact patients to confirm their disease status. The authors were also unable to establish racial differences in the progression to T2D because of missing data.

DISCLOSURES:

Funding for this study was provided by the National Center for Advancing Translational Sciences. One author has research contracts with Novo Nordisk and Boehringer Ingelheim.

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

TOPLINE:

Nearly one in five adolescents are living with prediabetes, a condition where blood glucose levels are elevated, but are not high enough for a type 2 diabetes (T2D) diagnosis. According to a new study, higher levels of nonfasting glucose and hemoglobin A1c, and worsening obesity are important predictors of progression to T2D. In addition, metformin and weight stabilization may prove to be important interventions for preventing T2D in kids.

METHODOLOGY:

• Researchers did a retrospective chart review of patient data from Vanderbilt University Medical Center Pediatric Prediabetes Clinic, Nashville, Tenn., from May 2015 to August 2022.
• The study included 552 children with prediabetes, defined as abnormal blood glucose (fasting plasma glucose [FPG] ≥ 100 mg/dL, random glucose ≥ 150 mg/dL), or hemoglobin A1c equal to or greater than 5.9%.
• Based on follow-up visits, patients were classified as having progressed to T2D, or nonprogression.
• Researchers analyzed the patients’ initial visit A1c, fasting C-peptide, 2-hour glucose, fasting glucose, and body mass index (BMI), among other baseline characteristics.

TAKEAWAY:

• Thirty-six children (6.5%) progressed to T2D during the duration of the study period.
• The average time to T2D diagnosis was much longer in patients taking metformin (43 months), compared with those not taking the prescribed medication (28 months).
• Worsening obesity was strongly associated with T2D progression – patients who progressed to T2D had a higher BMI at baseline and had continued weight gain.
• A higher baseline A1c, fasting C-peptide, and 2-hour glucose were also associated with progression to T2D.
• In the multivariable analysis, both A1c and 2-hour glucose were strong independent predictors of progression.
• Fasting plasma glucose was not associated with progression to T2D.

IN PRACTICE:

“Weight stabilization and metformin therapy could be important interventions for diabetes prevention in children,” study author Ashley H. Shoemaker, MD, MSci, a pediatric endocrinologist at Vanderbilt University Medical Center in Nashville, Tenn., said in a press release.

In addition, A1c plus a nonfasting glucose may be a feasible way to identify high-risk pediatric patients in a clinical setting.
 

SOURCE:

This study was performed by Natasha Belsky, Jaclyn Tamaroff, and Ashley H. Shoemaker of the Vanderbilt University Medical Center and the Vanderbilt University School of Medicine in Nashville, Tenn. It was published October 12, 2023, in the Journal of the Endocrine Society

LIMITATIONS:

Additional patients who developed T2D may have been lost to follow-up, since the authors did not contact patients to confirm their disease status. The authors were also unable to establish racial differences in the progression to T2D because of missing data.

DISCLOSURES:

Funding for this study was provided by the National Center for Advancing Translational Sciences. One author has research contracts with Novo Nordisk and Boehringer Ingelheim.

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

HAMBURG, GERMANY – The investigational incretin receptor agonist pemvidutide produced significant weight loss and other cardiometabolic benefits in a phase 2 randomized trial, adding a different type of “twincretin” to a growing mix of incretin-based weight-loss drugs in development that also offer additional benefits.

Pemvidutide (Altimmune Inc) is a long-acting “balanced” dual agonist of both glucagon-like peptide 1 (GLP-1) and glucagon that is in development for the treatment of obesity and nonalcoholic steatohepatitis (NASH) but not type 2 diabetes, as its effect on glucose is neutral. Phase 1 data for pemvidutide’s liver effect were presented in 2022.

In contrast, the dual GLP-1-glucose-dependent insulinotropic polypeptide (GIP) agonist tirzepatide (Mounjaro, Lilly) has been approved for the treatment of type 2 diabetes. It awaits an indication for obesity.

“When you look [at] the results for any given agent, think about obesity as a series of problems. Some overlap, and some don’t. While about 20%-25% of people with obesity also have type 2 diabetes, not everybody does. So the compounds that don’t lower glucose ... those will be great for others who have [fatty liver disease] or hyperlipidemia. ... It’s not going to be one compound for everybody,” said Louis J. Aronne, MD, director of the center for weight management and metabolic clinical research, Weill Cornell Medicine, New York.

Results of a new 24-week interim analysis of data from the phase 2 pemvidutide trial, called MOMENTUM, were presented at the annual meeting of the European Association for the Study of Diabetes by Dr. Aronne.

Included in that session were encore presentations of data for another GLP-1-glucagon dual agonist, survodutide, as well as data for Eli Lilly’s GLP-1-GIP-glucagon “triagonist,” retatrutide. Retatrutide is in development to induce weight loss, while survodutide (Boehringer Ingelheim and Zealand Pharma), like pemvidutide, is in development to induce weight loss and treat fatty liver disease.

Added Dr. Aronne, “As good as [the triple agonist] retatrutide looks, I doubt that every single person with obesity in the world will be treated with it. ... Think about this as a field, the way you treat diabetes and every other chronic illness.”

Asked to comment, session moderator Rajna Golubic, PhD, of the Oxford (England) Centre for Diabetes, Endocrinology and Metabolism, told this news organization, “We need to think in terms of treating beyond weight loss. ... We need to look at the person holistically and at other aspects of cardiometabolic health and treat in a personalized way and choose treatments according to the comorbidities people have.”

Regarding the dual GLP-1-glucagon agonists, including pemvidutide, Dr. Golubic pointed out that the glucagon agonism does the opposite of glucose-lowering agents but that the compound is “balanced for greater affinity for the GLP-1 receptor vs. glucagon, so that the beneficial effects outweigh the effect for glucose but it still harnesses the benefits of glucagon on liver with a decrease in liver fat, with positive effects on heart, positive effects on kidneys, and other beneficial metabolic effects.”
 

Pemvidutide lowers weight, LDL cholesterol, triglycerides, and blood pressure

Dr. Aronne began his presentation by noting that dyslipidemia, fatty liver disease, and hypertension are the most significant comorbidities of obesity, occurring in 66%-70%, 58%-75%, and 45%-55% of patients, respectively, while type 2 diabetes is less common, at 19%-23%.

Pemvidutide’s GLP-1 receptor agonism reduces appetite, inflammation, and gastric emptying, while glucagon agonism increases lipolysis, mobilizes fat, and increases energy expenditure, Dr. Aronne explained.

The 48-week phase 2 MOMENTUM trial randomly assigned 320 participants with overweight or obesity and at least one obesity-related comorbidity but not diabetes to receive weekly doses of 1.2 mg, 1.8 mg, or 2.4 mg of pemvidutide or placebo. The two lower pemvidutide doses were initiated immediately without titration, while the 2.4-mg dose was titrated rapidly over 4 weeks.

In a prespecified interim analysis of 160 participants, the percent body weight loss at 24 weeks was 10.7%, 9.4%, and 7.3% with the 2.4-mg, 1.8-mg, and 1.2-mg doses, respectively (P < .001). All weight loss values were significant; weight loss with placebo was a nonsignificant 1%.

The proportions of patients who lost at least 5% of their body weight were 84.6%, 66.7%, and 66.7%, respectively, vs. 25% with placebo. Half of the patients who received the 2.4-mg and 1.8-mg doses lost at least 10% of their body weight. Reductions in waist circumference followed suit; the patients who received the 2.4-mg dose lost an average of 10.2 cm, or “in the U.S., about 4 inches or 4 belt loops. That’s pretty good, you need a new belt,” Dr. Aronne commented.

Significant reductions in total cholesterol and triglyceride levels were also seen at week 24 by 16.5% and 25.0%, respectively, with the 2.4-mg dose. Low-density lipoprotein cholesterol levels also dropped, although not significantly; high-density lipoprotein levels dropped significantly.

Systolic blood pressure dropped by 5.5 mm Hg, and diastolic blood pressure dropped by 1.8 mm Hg in the 2.4-mg group and by lesser degrees among the patients who received lower doses. There were no significant changes in heart rate, Dr. Aronne noted.

Glucose homeostasis was preserved in all groups throughout the 24 weeks.

As with all drugs in the incretin class, gastrointestinal adverse events were common. Severe vomiting occurred in one person in the 1.8-mg group and in four with 2.4 mg. Efforts will be made to reduce that in subsequent trials, Dr. Aronne said.

“We have learned over time that going more gradually in titrating up these agents is a better strategy, allowing dose reduction may be a better strategy, and allowing antiemetics temporarily as we increase the dose is a lesson that many have learned doing these trials and of course in our clinical practices,” he commented.

Dr. Golubic told this news organization that the recent emergence of potent incretin-based weight loss drugs is “a huge paradigm shift. The prevalence of obesity will be 35% or higher by 2035. Bariatric surgery isn’t feasible for everyone, and it’s very expensive, so we need drugs to provide benefits in terms of lowering weight, glucose, and other cardiometabolic risk factors.”

The full 48-week data for MOMENTUM will be announced in the fourth quarter of 2023.

Dr. Aronne has received consulting fees from and serves on advisory boards for Allurion, Altimmune, Atria, Gelesis, Jamieson Wellness, Janssen Pharmaceuticals, Jazz Pharmaceuticals, Novo Nordisk, Pfizer, Optum, Eli Lilly, Senda Biosciences, and Versanis; has received research funding from Allurion, AstraZeneca, Gelesis, Janssen Pharmaceuticals, Novo Nordisk, and Eli Lilly; has equity interests in Allurion, ERX Pharmaceuticals, Gelesis, Intellihealth, Jamieson Wellness, and Myos Corp; and serves on a board of directors for ERX Pharmaceuticals, Intellihealth, and Jamieson Wellness. Dr. Golubic has received research support from AstraZeneca.

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

HAMBURG, GERMANY – The investigational incretin receptor agonist pemvidutide produced significant weight loss and other cardiometabolic benefits in a phase 2 randomized trial, adding a different type of “twincretin” to a growing mix of incretin-based weight-loss drugs in development that also offer additional benefits.

Pemvidutide (Altimmune Inc) is a long-acting “balanced” dual agonist of both glucagon-like peptide 1 (GLP-1) and glucagon that is in development for the treatment of obesity and nonalcoholic steatohepatitis (NASH) but not type 2 diabetes, as its effect on glucose is neutral. Phase 1 data for pemvidutide’s liver effect were presented in 2022.

In contrast, the dual GLP-1-glucose-dependent insulinotropic polypeptide (GIP) agonist tirzepatide (Mounjaro, Lilly) has been approved for the treatment of type 2 diabetes. It awaits an indication for obesity.

“When you look [at] the results for any given agent, think about obesity as a series of problems. Some overlap, and some don’t. While about 20%-25% of people with obesity also have type 2 diabetes, not everybody does. So the compounds that don’t lower glucose ... those will be great for others who have [fatty liver disease] or hyperlipidemia. ... It’s not going to be one compound for everybody,” said Louis J. Aronne, MD, director of the center for weight management and metabolic clinical research, Weill Cornell Medicine, New York.

Results of a new 24-week interim analysis of data from the phase 2 pemvidutide trial, called MOMENTUM, were presented at the annual meeting of the European Association for the Study of Diabetes by Dr. Aronne.

Included in that session were encore presentations of data for another GLP-1-glucagon dual agonist, survodutide, as well as data for Eli Lilly’s GLP-1-GIP-glucagon “triagonist,” retatrutide. Retatrutide is in development to induce weight loss, while survodutide (Boehringer Ingelheim and Zealand Pharma), like pemvidutide, is in development to induce weight loss and treat fatty liver disease.

Added Dr. Aronne, “As good as [the triple agonist] retatrutide looks, I doubt that every single person with obesity in the world will be treated with it. ... Think about this as a field, the way you treat diabetes and every other chronic illness.”

Asked to comment, session moderator Rajna Golubic, PhD, of the Oxford (England) Centre for Diabetes, Endocrinology and Metabolism, told this news organization, “We need to think in terms of treating beyond weight loss. ... We need to look at the person holistically and at other aspects of cardiometabolic health and treat in a personalized way and choose treatments according to the comorbidities people have.”

Regarding the dual GLP-1-glucagon agonists, including pemvidutide, Dr. Golubic pointed out that the glucagon agonism does the opposite of glucose-lowering agents but that the compound is “balanced for greater affinity for the GLP-1 receptor vs. glucagon, so that the beneficial effects outweigh the effect for glucose but it still harnesses the benefits of glucagon on liver with a decrease in liver fat, with positive effects on heart, positive effects on kidneys, and other beneficial metabolic effects.”
 

Pemvidutide lowers weight, LDL cholesterol, triglycerides, and blood pressure

Dr. Aronne began his presentation by noting that dyslipidemia, fatty liver disease, and hypertension are the most significant comorbidities of obesity, occurring in 66%-70%, 58%-75%, and 45%-55% of patients, respectively, while type 2 diabetes is less common, at 19%-23%.

Pemvidutide’s GLP-1 receptor agonism reduces appetite, inflammation, and gastric emptying, while glucagon agonism increases lipolysis, mobilizes fat, and increases energy expenditure, Dr. Aronne explained.

The 48-week phase 2 MOMENTUM trial randomly assigned 320 participants with overweight or obesity and at least one obesity-related comorbidity but not diabetes to receive weekly doses of 1.2 mg, 1.8 mg, or 2.4 mg of pemvidutide or placebo. The two lower pemvidutide doses were initiated immediately without titration, while the 2.4-mg dose was titrated rapidly over 4 weeks.

In a prespecified interim analysis of 160 participants, the percent body weight loss at 24 weeks was 10.7%, 9.4%, and 7.3% with the 2.4-mg, 1.8-mg, and 1.2-mg doses, respectively (P < .001). All weight loss values were significant; weight loss with placebo was a nonsignificant 1%.

The proportions of patients who lost at least 5% of their body weight were 84.6%, 66.7%, and 66.7%, respectively, vs. 25% with placebo. Half of the patients who received the 2.4-mg and 1.8-mg doses lost at least 10% of their body weight. Reductions in waist circumference followed suit; the patients who received the 2.4-mg dose lost an average of 10.2 cm, or “in the U.S., about 4 inches or 4 belt loops. That’s pretty good, you need a new belt,” Dr. Aronne commented.

Significant reductions in total cholesterol and triglyceride levels were also seen at week 24 by 16.5% and 25.0%, respectively, with the 2.4-mg dose. Low-density lipoprotein cholesterol levels also dropped, although not significantly; high-density lipoprotein levels dropped significantly.

Systolic blood pressure dropped by 5.5 mm Hg, and diastolic blood pressure dropped by 1.8 mm Hg in the 2.4-mg group and by lesser degrees among the patients who received lower doses. There were no significant changes in heart rate, Dr. Aronne noted.

Glucose homeostasis was preserved in all groups throughout the 24 weeks.

As with all drugs in the incretin class, gastrointestinal adverse events were common. Severe vomiting occurred in one person in the 1.8-mg group and in four with 2.4 mg. Efforts will be made to reduce that in subsequent trials, Dr. Aronne said.

“We have learned over time that going more gradually in titrating up these agents is a better strategy, allowing dose reduction may be a better strategy, and allowing antiemetics temporarily as we increase the dose is a lesson that many have learned doing these trials and of course in our clinical practices,” he commented.

Dr. Golubic told this news organization that the recent emergence of potent incretin-based weight loss drugs is “a huge paradigm shift. The prevalence of obesity will be 35% or higher by 2035. Bariatric surgery isn’t feasible for everyone, and it’s very expensive, so we need drugs to provide benefits in terms of lowering weight, glucose, and other cardiometabolic risk factors.”

The full 48-week data for MOMENTUM will be announced in the fourth quarter of 2023.

Dr. Aronne has received consulting fees from and serves on advisory boards for Allurion, Altimmune, Atria, Gelesis, Jamieson Wellness, Janssen Pharmaceuticals, Jazz Pharmaceuticals, Novo Nordisk, Pfizer, Optum, Eli Lilly, Senda Biosciences, and Versanis; has received research funding from Allurion, AstraZeneca, Gelesis, Janssen Pharmaceuticals, Novo Nordisk, and Eli Lilly; has equity interests in Allurion, ERX Pharmaceuticals, Gelesis, Intellihealth, Jamieson Wellness, and Myos Corp; and serves on a board of directors for ERX Pharmaceuticals, Intellihealth, and Jamieson Wellness. Dr. Golubic has received research support from AstraZeneca.

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

HAMBURG, GERMANY – The investigational incretin receptor agonist pemvidutide produced significant weight loss and other cardiometabolic benefits in a phase 2 randomized trial, adding a different type of “twincretin” to a growing mix of incretin-based weight-loss drugs in development that also offer additional benefits.

Pemvidutide (Altimmune Inc) is a long-acting “balanced” dual agonist of both glucagon-like peptide 1 (GLP-1) and glucagon that is in development for the treatment of obesity and nonalcoholic steatohepatitis (NASH) but not type 2 diabetes, as its effect on glucose is neutral. Phase 1 data for pemvidutide’s liver effect were presented in 2022.

In contrast, the dual GLP-1-glucose-dependent insulinotropic polypeptide (GIP) agonist tirzepatide (Mounjaro, Lilly) has been approved for the treatment of type 2 diabetes. It awaits an indication for obesity.

“When you look [at] the results for any given agent, think about obesity as a series of problems. Some overlap, and some don’t. While about 20%-25% of people with obesity also have type 2 diabetes, not everybody does. So the compounds that don’t lower glucose ... those will be great for others who have [fatty liver disease] or hyperlipidemia. ... It’s not going to be one compound for everybody,” said Louis J. Aronne, MD, director of the center for weight management and metabolic clinical research, Weill Cornell Medicine, New York.

Results of a new 24-week interim analysis of data from the phase 2 pemvidutide trial, called MOMENTUM, were presented at the annual meeting of the European Association for the Study of Diabetes by Dr. Aronne.

Included in that session were encore presentations of data for another GLP-1-glucagon dual agonist, survodutide, as well as data for Eli Lilly’s GLP-1-GIP-glucagon “triagonist,” retatrutide. Retatrutide is in development to induce weight loss, while survodutide (Boehringer Ingelheim and Zealand Pharma), like pemvidutide, is in development to induce weight loss and treat fatty liver disease.

Added Dr. Aronne, “As good as [the triple agonist] retatrutide looks, I doubt that every single person with obesity in the world will be treated with it. ... Think about this as a field, the way you treat diabetes and every other chronic illness.”

Asked to comment, session moderator Rajna Golubic, PhD, of the Oxford (England) Centre for Diabetes, Endocrinology and Metabolism, told this news organization, “We need to think in terms of treating beyond weight loss. ... We need to look at the person holistically and at other aspects of cardiometabolic health and treat in a personalized way and choose treatments according to the comorbidities people have.”

Regarding the dual GLP-1-glucagon agonists, including pemvidutide, Dr. Golubic pointed out that the glucagon agonism does the opposite of glucose-lowering agents but that the compound is “balanced for greater affinity for the GLP-1 receptor vs. glucagon, so that the beneficial effects outweigh the effect for glucose but it still harnesses the benefits of glucagon on liver with a decrease in liver fat, with positive effects on heart, positive effects on kidneys, and other beneficial metabolic effects.”
 

Pemvidutide lowers weight, LDL cholesterol, triglycerides, and blood pressure

Dr. Aronne began his presentation by noting that dyslipidemia, fatty liver disease, and hypertension are the most significant comorbidities of obesity, occurring in 66%-70%, 58%-75%, and 45%-55% of patients, respectively, while type 2 diabetes is less common, at 19%-23%.

Pemvidutide’s GLP-1 receptor agonism reduces appetite, inflammation, and gastric emptying, while glucagon agonism increases lipolysis, mobilizes fat, and increases energy expenditure, Dr. Aronne explained.

The 48-week phase 2 MOMENTUM trial randomly assigned 320 participants with overweight or obesity and at least one obesity-related comorbidity but not diabetes to receive weekly doses of 1.2 mg, 1.8 mg, or 2.4 mg of pemvidutide or placebo. The two lower pemvidutide doses were initiated immediately without titration, while the 2.4-mg dose was titrated rapidly over 4 weeks.

In a prespecified interim analysis of 160 participants, the percent body weight loss at 24 weeks was 10.7%, 9.4%, and 7.3% with the 2.4-mg, 1.8-mg, and 1.2-mg doses, respectively (P < .001). All weight loss values were significant; weight loss with placebo was a nonsignificant 1%.

The proportions of patients who lost at least 5% of their body weight were 84.6%, 66.7%, and 66.7%, respectively, vs. 25% with placebo. Half of the patients who received the 2.4-mg and 1.8-mg doses lost at least 10% of their body weight. Reductions in waist circumference followed suit; the patients who received the 2.4-mg dose lost an average of 10.2 cm, or “in the U.S., about 4 inches or 4 belt loops. That’s pretty good, you need a new belt,” Dr. Aronne commented.

Significant reductions in total cholesterol and triglyceride levels were also seen at week 24 by 16.5% and 25.0%, respectively, with the 2.4-mg dose. Low-density lipoprotein cholesterol levels also dropped, although not significantly; high-density lipoprotein levels dropped significantly.

Systolic blood pressure dropped by 5.5 mm Hg, and diastolic blood pressure dropped by 1.8 mm Hg in the 2.4-mg group and by lesser degrees among the patients who received lower doses. There were no significant changes in heart rate, Dr. Aronne noted.

Glucose homeostasis was preserved in all groups throughout the 24 weeks.

As with all drugs in the incretin class, gastrointestinal adverse events were common. Severe vomiting occurred in one person in the 1.8-mg group and in four with 2.4 mg. Efforts will be made to reduce that in subsequent trials, Dr. Aronne said.

“We have learned over time that going more gradually in titrating up these agents is a better strategy, allowing dose reduction may be a better strategy, and allowing antiemetics temporarily as we increase the dose is a lesson that many have learned doing these trials and of course in our clinical practices,” he commented.

Dr. Golubic told this news organization that the recent emergence of potent incretin-based weight loss drugs is “a huge paradigm shift. The prevalence of obesity will be 35% or higher by 2035. Bariatric surgery isn’t feasible for everyone, and it’s very expensive, so we need drugs to provide benefits in terms of lowering weight, glucose, and other cardiometabolic risk factors.”

The full 48-week data for MOMENTUM will be announced in the fourth quarter of 2023.

Dr. Aronne has received consulting fees from and serves on advisory boards for Allurion, Altimmune, Atria, Gelesis, Jamieson Wellness, Janssen Pharmaceuticals, Jazz Pharmaceuticals, Novo Nordisk, Pfizer, Optum, Eli Lilly, Senda Biosciences, and Versanis; has received research funding from Allurion, AstraZeneca, Gelesis, Janssen Pharmaceuticals, Novo Nordisk, and Eli Lilly; has equity interests in Allurion, ERX Pharmaceuticals, Gelesis, Intellihealth, Jamieson Wellness, and Myos Corp; and serves on a board of directors for ERX Pharmaceuticals, Intellihealth, and Jamieson Wellness. Dr. Golubic has received research support from AstraZeneca.

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

BERLIN – Further findings from the PSORRO study suggest that oral roflumilast may be an option for treating patients with moderate to severe plaque psoriasis, particularly if they have a high body mass index (BMI).

Reporting secondary outcomes from the investigator-led trial at the annual congress of the European Academy of Dermatology and Venereology, Alexander Egeberg, MD, PhD, DMSc, noted that “clinically significant weight loss” was seen among patients who were treated with oral roflumilast, 500 mcg once daily, versus those receiving placebo.

Indeed, after 12 weeks of therapy, one in three patients treated with oral roflumilast experienced at least a 5% drop in their baseline body weight vs no patients who received placebo (35% vs. 0%; P < .05).

Additionally, a respective 17% versus 0% of patients lost 10% or more of their body weight, and 4% versus 0% lost 15% or more of their baseline body weight at 12 weeks.

After 24 weeks’ treatment, a substantial percentage of patients still had greater than or equal to 5%, greater than or equal to 10%, or greater than or equal to 15% weight loss, at 30%, 17%, and 13% for oral roflumilast, compared with 9%, 0%, and 0% for placebo, respectively.

“We saw that the higher baseline weight correlated with the proportion of weight loss, so that the more heavy patients at baseline also were the ones who experienced the greatest weight loss,” said Dr. Egeberg, who is professor of dermatology at the University of Copenhagen and a senior consultant at the department of dermatology at Bispebjerg Hospital, Copenhagen.
 

A beneficial side effect in psoriasis?

“You may have heard in psoriasis about topical roflumilast, but oral roflumilast is actually also shown to be effective in treating psoriasis,” said Egeberg.

Topical roflumilast is approved in the United States and Canada for treating plaque psoriasis.

Efficacy results from the PSORRO study were published earlier this year and showed a significantly greater improvement in Psoriasis Area and Severity Index (PASI) 75 with oral roflumilast vs. placebo at 12 weeks (35% vs. 0%), with a sustained effect seen at 24 weeks (44% vs. 40%).

Weight loss was among the most common side effects seen, leading Dr. Egeberg and fellow PSORRO investigators to wonder whether this may actually be a beneficial effect in patients with psoriasis.

“Oral roflumilast is actually a drug that has been on the market for quite a number of years,” Dr. Egeberg said.

Although only currently licensed for chronic obstructive pulmonary disease (COPD) in the United States, oral roflumilast, a phosphodiesterase (PDE) 4 inhibitor, is available as a generic, “which also means that it is extremely affordable,” suggested Dr. Edeberg.

Weight loss may be a problem in patients with COPD, he acknowledged; these patients tend to be underweight as a result of their poor state of health caused by the lung condition. Weight loss could be an advantage in patients with psoriasis who are overweight or living with obesity and have poor cardiometabolic parameters.

The psoriasis treatment with oral roflumilast study

The PSORRO study was a phase 2, multicenter, placebo-controlled, randomized trial performed between 2021 and 2022. A total of 46 adults with plaque psoriasis participated; half were initially treated with oral roflumilast and half with placebo.

Treatment was double-blind for the first 12 weeks, with all patients then receiving open-label treatment with roflumilast for 12 weeks.

The primary endpoint was the proportion of patients achieving at least 75% reduction from baseline PASI (PASI75). A host of secondary endpoints were studied, including weight and cardiometabolic parameters, which Dr. Egeberg reported at the EADV meeting.

Looking at the baseline characteristics of the oral roflumilast and placebo groups, the mean age was a respective 38 and 39 years, 65% and 83% were men, and the mean starting body weight was 102 kg and 105.1 kg.

After 12 weeks of treatment, body weight fell by a mean of 5.4 kg in the oral roflumilast group, with a further decrease of 1.4 kg by 24 weeks, bringing the total average weight loss to 6.8 kg. By comparison, weight loss among those in the placebo group was 0 kg at 12 weeks and around 2 kg at 24 weeks.

The majority of participants in both groups had high baseline BMIs; 70% of those who received oral roflumilast and 61% of those who received placebo had a BMI of 30 or higher.

“We wanted to investigate the impact of body weight, [so] we didn’t allow patients to be underweight when they were included,” Dr. Egeberg explained. Thus, for inclusion, patients had to have a BMI of 20 or higher.

An “extraordinary” finding was how some patients’ weight status based on their BMI changed throughout the study.

“We could see people that went from obese class 3, all the way to obese class 1. And we could see people going from being overweight to normal weight, which is really extraordinary for patients with psoriasis,” Dr. Egeberg said.

“But most importantly,” he added, “we didn’t have any patients who became underweight, suggesting that it actually is safe to use also in normal-weight patients.”
 

Reduced appetite behind benefit?

Trying to see why the weight loss occurred, Dr. Egeberg noted that it looked like it could be a result of a reduced appetite.

In common with other PDE-4 inhibitors, oral roflumilast treatment was associated with gastrointestinal symptoms – nausea, diarrhea, and abdominal pain – but all of these “decrease to placebo levels again, quite quickly,” he said.

“This really suggests that it’s not because of diarrhea, it’s not because of nausea and abdominal pain; it is because of a reduced appetite that patients actually lose weight when treated with roflumilast,” Dr. Egeberg said. It’s a potential bonus for the drug’s effects on the skin and could afford clinicians an opportunity to help motivate patients to eat well when they do eat, he observed.

Other cardiometabolic parameters assessed included blood pressure, glycated hemoglobin, total cholesterol and other key lipids, creatinine, alanine aminotransferase, and high-sensitivity C-reactive protein, but there were no noteworthy differences between the groups.

Roflumilast is an inexpensive drug because it is generic, Dr. Egeberg observed, but that also means that its use is likely to be off-label.

“It will be up to the treating physician to decide if this is an optimal therapy for their patients,” he suggested.
 

Cardiometabolic comorbidities important to target

Obesity is a cardiometabolic comorbidity that is important to consider when treating your patients with psoriasis, Paolo Gisondi, MD, of the University of Verona (Italy), said at a separate presentation at the EADV meeting.

While not directly commenting on the roflumilast study, he noted that moderate to severe psoriasis was “frequently associated” with metabolic disorders that put people at additional risk for cardiovascular and fatty liver diseases.

The PSORRO study was an investigator-initiated and investigator-led study and received no commercial funding. Research funding came from the Danish Psoriasis Foundation, Herlev and Gentofte Hospital, and several charitable and humanitarian organizations. Dr. Egeberg acknowledged acting as the principal investigator, speaker, and/or consultant to multiple pharma companies, all of which were unrelated to the study he presented. Dr. Gisondi’s comments were from a separate presentation, and he was not involved in the study.

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

BERLIN – Further findings from the PSORRO study suggest that oral roflumilast may be an option for treating patients with moderate to severe plaque psoriasis, particularly if they have a high body mass index (BMI).

Reporting secondary outcomes from the investigator-led trial at the annual congress of the European Academy of Dermatology and Venereology, Alexander Egeberg, MD, PhD, DMSc, noted that “clinically significant weight loss” was seen among patients who were treated with oral roflumilast, 500 mcg once daily, versus those receiving placebo.

Indeed, after 12 weeks of therapy, one in three patients treated with oral roflumilast experienced at least a 5% drop in their baseline body weight vs no patients who received placebo (35% vs. 0%; P < .05).

Additionally, a respective 17% versus 0% of patients lost 10% or more of their body weight, and 4% versus 0% lost 15% or more of their baseline body weight at 12 weeks.

After 24 weeks’ treatment, a substantial percentage of patients still had greater than or equal to 5%, greater than or equal to 10%, or greater than or equal to 15% weight loss, at 30%, 17%, and 13% for oral roflumilast, compared with 9%, 0%, and 0% for placebo, respectively.

“We saw that the higher baseline weight correlated with the proportion of weight loss, so that the more heavy patients at baseline also were the ones who experienced the greatest weight loss,” said Dr. Egeberg, who is professor of dermatology at the University of Copenhagen and a senior consultant at the department of dermatology at Bispebjerg Hospital, Copenhagen.
 

A beneficial side effect in psoriasis?

“You may have heard in psoriasis about topical roflumilast, but oral roflumilast is actually also shown to be effective in treating psoriasis,” said Egeberg.

Topical roflumilast is approved in the United States and Canada for treating plaque psoriasis.

Efficacy results from the PSORRO study were published earlier this year and showed a significantly greater improvement in Psoriasis Area and Severity Index (PASI) 75 with oral roflumilast vs. placebo at 12 weeks (35% vs. 0%), with a sustained effect seen at 24 weeks (44% vs. 40%).

Weight loss was among the most common side effects seen, leading Dr. Egeberg and fellow PSORRO investigators to wonder whether this may actually be a beneficial effect in patients with psoriasis.

“Oral roflumilast is actually a drug that has been on the market for quite a number of years,” Dr. Egeberg said.

Although only currently licensed for chronic obstructive pulmonary disease (COPD) in the United States, oral roflumilast, a phosphodiesterase (PDE) 4 inhibitor, is available as a generic, “which also means that it is extremely affordable,” suggested Dr. Edeberg.

Weight loss may be a problem in patients with COPD, he acknowledged; these patients tend to be underweight as a result of their poor state of health caused by the lung condition. Weight loss could be an advantage in patients with psoriasis who are overweight or living with obesity and have poor cardiometabolic parameters.

The psoriasis treatment with oral roflumilast study

The PSORRO study was a phase 2, multicenter, placebo-controlled, randomized trial performed between 2021 and 2022. A total of 46 adults with plaque psoriasis participated; half were initially treated with oral roflumilast and half with placebo.

Treatment was double-blind for the first 12 weeks, with all patients then receiving open-label treatment with roflumilast for 12 weeks.

The primary endpoint was the proportion of patients achieving at least 75% reduction from baseline PASI (PASI75). A host of secondary endpoints were studied, including weight and cardiometabolic parameters, which Dr. Egeberg reported at the EADV meeting.

Looking at the baseline characteristics of the oral roflumilast and placebo groups, the mean age was a respective 38 and 39 years, 65% and 83% were men, and the mean starting body weight was 102 kg and 105.1 kg.

After 12 weeks of treatment, body weight fell by a mean of 5.4 kg in the oral roflumilast group, with a further decrease of 1.4 kg by 24 weeks, bringing the total average weight loss to 6.8 kg. By comparison, weight loss among those in the placebo group was 0 kg at 12 weeks and around 2 kg at 24 weeks.

The majority of participants in both groups had high baseline BMIs; 70% of those who received oral roflumilast and 61% of those who received placebo had a BMI of 30 or higher.

“We wanted to investigate the impact of body weight, [so] we didn’t allow patients to be underweight when they were included,” Dr. Egeberg explained. Thus, for inclusion, patients had to have a BMI of 20 or higher.

An “extraordinary” finding was how some patients’ weight status based on their BMI changed throughout the study.

“We could see people that went from obese class 3, all the way to obese class 1. And we could see people going from being overweight to normal weight, which is really extraordinary for patients with psoriasis,” Dr. Egeberg said.

“But most importantly,” he added, “we didn’t have any patients who became underweight, suggesting that it actually is safe to use also in normal-weight patients.”
 

Reduced appetite behind benefit?

Trying to see why the weight loss occurred, Dr. Egeberg noted that it looked like it could be a result of a reduced appetite.

In common with other PDE-4 inhibitors, oral roflumilast treatment was associated with gastrointestinal symptoms – nausea, diarrhea, and abdominal pain – but all of these “decrease to placebo levels again, quite quickly,” he said.

“This really suggests that it’s not because of diarrhea, it’s not because of nausea and abdominal pain; it is because of a reduced appetite that patients actually lose weight when treated with roflumilast,” Dr. Egeberg said. It’s a potential bonus for the drug’s effects on the skin and could afford clinicians an opportunity to help motivate patients to eat well when they do eat, he observed.

Other cardiometabolic parameters assessed included blood pressure, glycated hemoglobin, total cholesterol and other key lipids, creatinine, alanine aminotransferase, and high-sensitivity C-reactive protein, but there were no noteworthy differences between the groups.

Roflumilast is an inexpensive drug because it is generic, Dr. Egeberg observed, but that also means that its use is likely to be off-label.

“It will be up to the treating physician to decide if this is an optimal therapy for their patients,” he suggested.
 

Cardiometabolic comorbidities important to target

Obesity is a cardiometabolic comorbidity that is important to consider when treating your patients with psoriasis, Paolo Gisondi, MD, of the University of Verona (Italy), said at a separate presentation at the EADV meeting.

While not directly commenting on the roflumilast study, he noted that moderate to severe psoriasis was “frequently associated” with metabolic disorders that put people at additional risk for cardiovascular and fatty liver diseases.

The PSORRO study was an investigator-initiated and investigator-led study and received no commercial funding. Research funding came from the Danish Psoriasis Foundation, Herlev and Gentofte Hospital, and several charitable and humanitarian organizations. Dr. Egeberg acknowledged acting as the principal investigator, speaker, and/or consultant to multiple pharma companies, all of which were unrelated to the study he presented. Dr. Gisondi’s comments were from a separate presentation, and he was not involved in the study.

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

BERLIN – Further findings from the PSORRO study suggest that oral roflumilast may be an option for treating patients with moderate to severe plaque psoriasis, particularly if they have a high body mass index (BMI).

Reporting secondary outcomes from the investigator-led trial at the annual congress of the European Academy of Dermatology and Venereology, Alexander Egeberg, MD, PhD, DMSc, noted that “clinically significant weight loss” was seen among patients who were treated with oral roflumilast, 500 mcg once daily, versus those receiving placebo.

Indeed, after 12 weeks of therapy, one in three patients treated with oral roflumilast experienced at least a 5% drop in their baseline body weight vs no patients who received placebo (35% vs. 0%; P < .05).

Additionally, a respective 17% versus 0% of patients lost 10% or more of their body weight, and 4% versus 0% lost 15% or more of their baseline body weight at 12 weeks.

After 24 weeks’ treatment, a substantial percentage of patients still had greater than or equal to 5%, greater than or equal to 10%, or greater than or equal to 15% weight loss, at 30%, 17%, and 13% for oral roflumilast, compared with 9%, 0%, and 0% for placebo, respectively.

“We saw that the higher baseline weight correlated with the proportion of weight loss, so that the more heavy patients at baseline also were the ones who experienced the greatest weight loss,” said Dr. Egeberg, who is professor of dermatology at the University of Copenhagen and a senior consultant at the department of dermatology at Bispebjerg Hospital, Copenhagen.
 

A beneficial side effect in psoriasis?

“You may have heard in psoriasis about topical roflumilast, but oral roflumilast is actually also shown to be effective in treating psoriasis,” said Egeberg.

Topical roflumilast is approved in the United States and Canada for treating plaque psoriasis.

Efficacy results from the PSORRO study were published earlier this year and showed a significantly greater improvement in Psoriasis Area and Severity Index (PASI) 75 with oral roflumilast vs. placebo at 12 weeks (35% vs. 0%), with a sustained effect seen at 24 weeks (44% vs. 40%).

Weight loss was among the most common side effects seen, leading Dr. Egeberg and fellow PSORRO investigators to wonder whether this may actually be a beneficial effect in patients with psoriasis.

“Oral roflumilast is actually a drug that has been on the market for quite a number of years,” Dr. Egeberg said.

Although only currently licensed for chronic obstructive pulmonary disease (COPD) in the United States, oral roflumilast, a phosphodiesterase (PDE) 4 inhibitor, is available as a generic, “which also means that it is extremely affordable,” suggested Dr. Edeberg.

Weight loss may be a problem in patients with COPD, he acknowledged; these patients tend to be underweight as a result of their poor state of health caused by the lung condition. Weight loss could be an advantage in patients with psoriasis who are overweight or living with obesity and have poor cardiometabolic parameters.

The psoriasis treatment with oral roflumilast study

The PSORRO study was a phase 2, multicenter, placebo-controlled, randomized trial performed between 2021 and 2022. A total of 46 adults with plaque psoriasis participated; half were initially treated with oral roflumilast and half with placebo.

Treatment was double-blind for the first 12 weeks, with all patients then receiving open-label treatment with roflumilast for 12 weeks.

The primary endpoint was the proportion of patients achieving at least 75% reduction from baseline PASI (PASI75). A host of secondary endpoints were studied, including weight and cardiometabolic parameters, which Dr. Egeberg reported at the EADV meeting.

Looking at the baseline characteristics of the oral roflumilast and placebo groups, the mean age was a respective 38 and 39 years, 65% and 83% were men, and the mean starting body weight was 102 kg and 105.1 kg.

After 12 weeks of treatment, body weight fell by a mean of 5.4 kg in the oral roflumilast group, with a further decrease of 1.4 kg by 24 weeks, bringing the total average weight loss to 6.8 kg. By comparison, weight loss among those in the placebo group was 0 kg at 12 weeks and around 2 kg at 24 weeks.

The majority of participants in both groups had high baseline BMIs; 70% of those who received oral roflumilast and 61% of those who received placebo had a BMI of 30 or higher.

“We wanted to investigate the impact of body weight, [so] we didn’t allow patients to be underweight when they were included,” Dr. Egeberg explained. Thus, for inclusion, patients had to have a BMI of 20 or higher.

An “extraordinary” finding was how some patients’ weight status based on their BMI changed throughout the study.

“We could see people that went from obese class 3, all the way to obese class 1. And we could see people going from being overweight to normal weight, which is really extraordinary for patients with psoriasis,” Dr. Egeberg said.

“But most importantly,” he added, “we didn’t have any patients who became underweight, suggesting that it actually is safe to use also in normal-weight patients.”
 

Reduced appetite behind benefit?

Trying to see why the weight loss occurred, Dr. Egeberg noted that it looked like it could be a result of a reduced appetite.

In common with other PDE-4 inhibitors, oral roflumilast treatment was associated with gastrointestinal symptoms – nausea, diarrhea, and abdominal pain – but all of these “decrease to placebo levels again, quite quickly,” he said.

“This really suggests that it’s not because of diarrhea, it’s not because of nausea and abdominal pain; it is because of a reduced appetite that patients actually lose weight when treated with roflumilast,” Dr. Egeberg said. It’s a potential bonus for the drug’s effects on the skin and could afford clinicians an opportunity to help motivate patients to eat well when they do eat, he observed.

Other cardiometabolic parameters assessed included blood pressure, glycated hemoglobin, total cholesterol and other key lipids, creatinine, alanine aminotransferase, and high-sensitivity C-reactive protein, but there were no noteworthy differences between the groups.

Roflumilast is an inexpensive drug because it is generic, Dr. Egeberg observed, but that also means that its use is likely to be off-label.

“It will be up to the treating physician to decide if this is an optimal therapy for their patients,” he suggested.
 

Cardiometabolic comorbidities important to target

Obesity is a cardiometabolic comorbidity that is important to consider when treating your patients with psoriasis, Paolo Gisondi, MD, of the University of Verona (Italy), said at a separate presentation at the EADV meeting.

While not directly commenting on the roflumilast study, he noted that moderate to severe psoriasis was “frequently associated” with metabolic disorders that put people at additional risk for cardiovascular and fatty liver diseases.

The PSORRO study was an investigator-initiated and investigator-led study and received no commercial funding. Research funding came from the Danish Psoriasis Foundation, Herlev and Gentofte Hospital, and several charitable and humanitarian organizations. Dr. Egeberg acknowledged acting as the principal investigator, speaker, and/or consultant to multiple pharma companies, all of which were unrelated to the study he presented. Dr. Gisondi’s comments were from a separate presentation, and he was not involved in the study.

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

People taking semaglutide or liraglutide for weight management are at a higher risk for rare but potentially serious gastrointestinal issues, compared with those taking naltrexone/bupropion, according to a large epidemiologic study.

Patients taking either of these glucagonlike peptide-1 (GLP-1) receptor agonists had a 9-fold elevation in risk for pancreatitis. They were also 4 times more likely to develop bowel obstruction and over 3.5 times more likely to experience gastroparesis.

The research letter was published online in JAMA.

Investigators say their findings are not about scaring people off the weight-loss drugs, but instead about increasing awareness that these potential adverse outcomes can happen.

“Given the wide use of these drugs, these adverse events, although rare, must be considered by patients thinking about using them for weight loss,” said lead author Mohit Sodhi, MSc, in a news release about the study. Mr. Sodhi is a graduate of the experimental medicine program at the University of British Columbia in Vancouver, and also a 4th-year medical student at UBC.

People taking a GLP-1 agonist to treat diabetes might be more willing to accept the risks, given their potential advantages, especially that of lowering the risk for heart problems, said Mahyar Etminan, PharmD, MSc, the study’s senior author and an expert in drug safety and pharmacoepidemiology at UBC. “But those who are otherwise healthy and just taking them for weight loss might want to be more careful in weighing the risk–benefit equation.”

People taking these drugs for weight loss have an approximately 1%-2% chance of experiencing these events, including a 1% risk for gastroparesis, Dr. Etminan said.
 

Key findings

The study included 4,144 people taking liraglutide, 613 taking semaglutide, and 654 taking naltrexone/bupropion based on medical records between 2006 and 2020.

They included patients with a recent history of obesity but excluded those with diabetes or who had been prescribed another diabetes medication.

The use of GLP-1 agonists, compared with naltrexone/bupropion, was associated with an increased risk for pancreatitis (adjusted hazard ratio, 9.09; 95% confidence interval, 1.25-66.00), bowel obstruction (HR, 4.22; 95% CI, 1.02-17.40), and gastroparesis (HR, 3.67; 95% CI, 1.15-11.90).

The study also found a higher incidence of biliary disease, but the difference was not statistically significant (HR, 1.50; 95% CI, 0.89-2.53). The incidence of biliary disease (per 1,000 person-years) was 11.7 for semaglutide, 18.6 for liraglutide, and 12.6 for naltrexone/bupropion.
 

Not the first report of GI issues

“This important paper confirms the safety signals hinted at in previous randomized controlled trials,” said Carel Le Roux, MBChB, PhD, professor of metabolic medicine, Ulster University, Coleraine, Ireland, and professor of experimental pathology at University College Dublin.

“The limitations of the paper are acknowledged but do not detract from the value of the robust data,” Dr. Le Roux said. “Patients should be informed of the low risk of serious complications, such as pancreatitis, gastroparesis, and bowel obstruction, before they start semaglutide or liraglutide.”

This is not the first report of GI issues associated with GLP-1 agonists, but it’s one of the largest. Most reports have been anecdotal. The U.S. Food and Drug Administration announced on Sept. 28 that it would require manufacturers to include a warning about gastrointestinal ileus on the Ozempic (semaglutide) label.

“The results from this study highlight how important it is that patients access these drugs only through trusted medical professionals, and only with ongoing support and monitoring,” noted Simon Cork, PhD, senior lecturer in physiology, Anglia Ruskin University in Cambridge, England.

Dr. Cork added that “it’s important to look at this in the proper context.” Obesity significantly increases the risk for developing cardiovascular disease, type 2 diabetes, cancer, gallbladder disease, and stroke, risks that fall dramatically with clinically meaningful and sustained weight loss, he said.

“For the overwhelming majority of patients for whom these drugs are targeted (those with the most severe forms of obesity), the benefits of weight loss far outweigh the risks,” Dr. Cork said.

The study was independently supported. Mr. Sodhi, Dr. Etminan, and Dr. Cork report no relevant financial relationships. Dr. Le Roux is a consultant and has received research funding and reimbursement of travel expenses from Novo Nordisk.

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

People taking semaglutide or liraglutide for weight management are at a higher risk for rare but potentially serious gastrointestinal issues, compared with those taking naltrexone/bupropion, according to a large epidemiologic study.

Patients taking either of these glucagonlike peptide-1 (GLP-1) receptor agonists had a 9-fold elevation in risk for pancreatitis. They were also 4 times more likely to develop bowel obstruction and over 3.5 times more likely to experience gastroparesis.

The research letter was published online in JAMA.

Investigators say their findings are not about scaring people off the weight-loss drugs, but instead about increasing awareness that these potential adverse outcomes can happen.

“Given the wide use of these drugs, these adverse events, although rare, must be considered by patients thinking about using them for weight loss,” said lead author Mohit Sodhi, MSc, in a news release about the study. Mr. Sodhi is a graduate of the experimental medicine program at the University of British Columbia in Vancouver, and also a 4th-year medical student at UBC.

People taking a GLP-1 agonist to treat diabetes might be more willing to accept the risks, given their potential advantages, especially that of lowering the risk for heart problems, said Mahyar Etminan, PharmD, MSc, the study’s senior author and an expert in drug safety and pharmacoepidemiology at UBC. “But those who are otherwise healthy and just taking them for weight loss might want to be more careful in weighing the risk–benefit equation.”

People taking these drugs for weight loss have an approximately 1%-2% chance of experiencing these events, including a 1% risk for gastroparesis, Dr. Etminan said.
 

Key findings

The study included 4,144 people taking liraglutide, 613 taking semaglutide, and 654 taking naltrexone/bupropion based on medical records between 2006 and 2020.

They included patients with a recent history of obesity but excluded those with diabetes or who had been prescribed another diabetes medication.

The use of GLP-1 agonists, compared with naltrexone/bupropion, was associated with an increased risk for pancreatitis (adjusted hazard ratio, 9.09; 95% confidence interval, 1.25-66.00), bowel obstruction (HR, 4.22; 95% CI, 1.02-17.40), and gastroparesis (HR, 3.67; 95% CI, 1.15-11.90).

The study also found a higher incidence of biliary disease, but the difference was not statistically significant (HR, 1.50; 95% CI, 0.89-2.53). The incidence of biliary disease (per 1,000 person-years) was 11.7 for semaglutide, 18.6 for liraglutide, and 12.6 for naltrexone/bupropion.
 

Not the first report of GI issues

“This important paper confirms the safety signals hinted at in previous randomized controlled trials,” said Carel Le Roux, MBChB, PhD, professor of metabolic medicine, Ulster University, Coleraine, Ireland, and professor of experimental pathology at University College Dublin.

“The limitations of the paper are acknowledged but do not detract from the value of the robust data,” Dr. Le Roux said. “Patients should be informed of the low risk of serious complications, such as pancreatitis, gastroparesis, and bowel obstruction, before they start semaglutide or liraglutide.”

This is not the first report of GI issues associated with GLP-1 agonists, but it’s one of the largest. Most reports have been anecdotal. The U.S. Food and Drug Administration announced on Sept. 28 that it would require manufacturers to include a warning about gastrointestinal ileus on the Ozempic (semaglutide) label.

“The results from this study highlight how important it is that patients access these drugs only through trusted medical professionals, and only with ongoing support and monitoring,” noted Simon Cork, PhD, senior lecturer in physiology, Anglia Ruskin University in Cambridge, England.

Dr. Cork added that “it’s important to look at this in the proper context.” Obesity significantly increases the risk for developing cardiovascular disease, type 2 diabetes, cancer, gallbladder disease, and stroke, risks that fall dramatically with clinically meaningful and sustained weight loss, he said.

“For the overwhelming majority of patients for whom these drugs are targeted (those with the most severe forms of obesity), the benefits of weight loss far outweigh the risks,” Dr. Cork said.

The study was independently supported. Mr. Sodhi, Dr. Etminan, and Dr. Cork report no relevant financial relationships. Dr. Le Roux is a consultant and has received research funding and reimbursement of travel expenses from Novo Nordisk.

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

People taking semaglutide or liraglutide for weight management are at a higher risk for rare but potentially serious gastrointestinal issues, compared with those taking naltrexone/bupropion, according to a large epidemiologic study.

Patients taking either of these glucagonlike peptide-1 (GLP-1) receptor agonists had a 9-fold elevation in risk for pancreatitis. They were also 4 times more likely to develop bowel obstruction and over 3.5 times more likely to experience gastroparesis.

The research letter was published online in JAMA.

Investigators say their findings are not about scaring people off the weight-loss drugs, but instead about increasing awareness that these potential adverse outcomes can happen.

“Given the wide use of these drugs, these adverse events, although rare, must be considered by patients thinking about using them for weight loss,” said lead author Mohit Sodhi, MSc, in a news release about the study. Mr. Sodhi is a graduate of the experimental medicine program at the University of British Columbia in Vancouver, and also a 4th-year medical student at UBC.

People taking a GLP-1 agonist to treat diabetes might be more willing to accept the risks, given their potential advantages, especially that of lowering the risk for heart problems, said Mahyar Etminan, PharmD, MSc, the study’s senior author and an expert in drug safety and pharmacoepidemiology at UBC. “But those who are otherwise healthy and just taking them for weight loss might want to be more careful in weighing the risk–benefit equation.”

People taking these drugs for weight loss have an approximately 1%-2% chance of experiencing these events, including a 1% risk for gastroparesis, Dr. Etminan said.
 

Key findings

The study included 4,144 people taking liraglutide, 613 taking semaglutide, and 654 taking naltrexone/bupropion based on medical records between 2006 and 2020.

They included patients with a recent history of obesity but excluded those with diabetes or who had been prescribed another diabetes medication.

The use of GLP-1 agonists, compared with naltrexone/bupropion, was associated with an increased risk for pancreatitis (adjusted hazard ratio, 9.09; 95% confidence interval, 1.25-66.00), bowel obstruction (HR, 4.22; 95% CI, 1.02-17.40), and gastroparesis (HR, 3.67; 95% CI, 1.15-11.90).

The study also found a higher incidence of biliary disease, but the difference was not statistically significant (HR, 1.50; 95% CI, 0.89-2.53). The incidence of biliary disease (per 1,000 person-years) was 11.7 for semaglutide, 18.6 for liraglutide, and 12.6 for naltrexone/bupropion.
 

Not the first report of GI issues

“This important paper confirms the safety signals hinted at in previous randomized controlled trials,” said Carel Le Roux, MBChB, PhD, professor of metabolic medicine, Ulster University, Coleraine, Ireland, and professor of experimental pathology at University College Dublin.

“The limitations of the paper are acknowledged but do not detract from the value of the robust data,” Dr. Le Roux said. “Patients should be informed of the low risk of serious complications, such as pancreatitis, gastroparesis, and bowel obstruction, before they start semaglutide or liraglutide.”

This is not the first report of GI issues associated with GLP-1 agonists, but it’s one of the largest. Most reports have been anecdotal. The U.S. Food and Drug Administration announced on Sept. 28 that it would require manufacturers to include a warning about gastrointestinal ileus on the Ozempic (semaglutide) label.

“The results from this study highlight how important it is that patients access these drugs only through trusted medical professionals, and only with ongoing support and monitoring,” noted Simon Cork, PhD, senior lecturer in physiology, Anglia Ruskin University in Cambridge, England.

Dr. Cork added that “it’s important to look at this in the proper context.” Obesity significantly increases the risk for developing cardiovascular disease, type 2 diabetes, cancer, gallbladder disease, and stroke, risks that fall dramatically with clinically meaningful and sustained weight loss, he said.

“For the overwhelming majority of patients for whom these drugs are targeted (those with the most severe forms of obesity), the benefits of weight loss far outweigh the risks,” Dr. Cork said.

The study was independently supported. Mr. Sodhi, Dr. Etminan, and Dr. Cork report no relevant financial relationships. Dr. Le Roux is a consultant and has received research funding and reimbursement of travel expenses from Novo Nordisk.

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

MILAN – Obese patients with MS are more likely to rapidly progress through the stages of their disease and experience higher levels of cognitive difficulty than nonobese patients with MS, Swedish researchers reported at the 9th Joint ECTRIMS-ACTRIMS meeting.

In a group of 3,249 subjects tracked for up to 5 years (74% female; mean age, 37.8 years), patients who were obese at diagnosis were 1.41 times more likely than normal-weight patients to reach an Expanded Disability Status Scale (EDSS) score of 3. About 35% of 355 obese subjects (body mass index > 30 kg/m²) reached that level versus 29% of 713 overweight patients (BMI, 25-30) and 28% of 1,475 normal-weight patients (BMI, 18.5-24.99).

Among subjects whose BMI category didn’t change over follow-up, those who were obese at diagnosis were more likely to develop cognitive worsening than those who weren’t obese (hazard ratio, 1.47, 95% confidence interval, 1.08-2.01).

Lars Alfredsson, PhD, a professor at the Karolinska Institutet, Stockholm, who presented the study findings, said in an interview that they fill a gap in knowledge about obesity and MS. “It is known that obesity around the age of 20 or in adolescence is a risk factor for developing MS. But much less is known in regard to progression, and the studies have been very inconclusive.”

The researchers tracked patients via the Swedish MS registry: 1,475 of normal weight, 713 overweight, and 355 obese. Before adjustment for factors such as age, gender, and baseline EDSS, obese subjects were 1.51 times more likely to reach EDSS score 3 than normal-weight subjects.

Obese subjects whose BMI level didn’t change over time were 1.70 times more likely than the nonobese to develop physical worsening as measured by an increased Multiple Sclerosis Impact Scale physical score of 7.5 points or more, and they were 1.36 times more likely to have psychological worsening as measured by increased MSIS-28 psychological score of 7.5 points or more.

Also, among subjects whose BMI didn’t change over time, the likelihood of cognitive disability worsening was 1.47 times higher among obese participants versus nonobese participants. Worsening was defined as an increased Symbol Digit Modalities Test score of 8 points or more.

The level of excess cognitive decline “will affect people significantly,” Dr. Alfredsson said.

While obesity can counterintuitively provide a protective effect in some diseases, he said there’s no sign of such an effect in the subjects.

As for limitations, Dr. Alfredsson noted in his presentation that BMI data is self-reported, and it’s possible that the researchers didn’t adjust their statistics to reflect important confounders.

A 2023 German study of outcomes in MS patients with obesity came to similar conclusions. It tracked 1,066 subjects for up to 6 years and found that “median time to reach EDSS 3 was 0.99 years for patients with BMI of 30 or higher and 1.46 years for nonobese patients. Risk to reach EDSS 3 over 6 years was significantly increased in patients with BMI of at least 30, compared with patients with BMI less than 30 after adjustment for sex, age, smoking (HR, 1.87; 95% CI, 1.3-2.6; P < .001), and independent of disease-modifying therapies.”

However, the German researchers found no link between obesity and higher levels of relapse, contrast-enhancing MRI lesions, or MRI T2 lesion burden.
 

Interpretation and commentary

Could obesity be causing worse outcomes? The new study doesn’t provide insight into cause and effect. However, obesity may speed up progression via low-grade inflammation, Dr. Alfredsson said.

What can clinicians do with the information from the study? If patients are obese, it can be a good idea to more carefully monitor them and use reliable tools to improve their progression, Dr. Alfredsson said.

In an interview, Michael D. Kornberg, MD, PhD, an assistant professor of neurology at Johns Hopkins University, Baltimore, who was not involved with the study, agreed with Dr. Alfredsson that other research has linked obesity early in life to higher rates of MS. He added that “a number of studies have shown that comorbidities in general are usually associated with a higher rate of disability.”

Dr. Kornberg said the new research is important, and he noted that it has a “robust” cohort because of its larger size.

Could patients with MS reverse the risk of progression and other poor outcomes by losing weight? “It’s hard to say,” Dr. Kornberg said. “We have to be cautious when we assume causation. There’s a plausible rationale that obesity might worsen progression in MS, but it could just be a marker of some other factor that reflects a different phenotype of MS.”

He doesn’t think it’s likely that weight loss would “dramatically reverse the biology of MS,” but he said reversing the obesity epidemic would still be a good thing. An interventional study could examine the effects of weight-loss intervention on disability measures, he said, “and that’s the next step.”

Also contacted for commentary, Adil Harroud, MD, a neurologist at McGill University who studies obesity in MS, said research suggests that “obesity seems to exacerbate MS disability. While some studies show no effect, the majority indicate a detrimental impact.”

However, “the effect of obesity on MS progression remains unclear. Animal studies suggest that shifts in immune cell subsets and functions may play a role, but the relevance to humans is yet to be determined,” he said.

Dr. Harroud, who did not take part in the new study, said it’s “one of the largest examining the impact of obesity on MS disability.” He added that “the cohort was relatively early in their disease course, suggesting that obesity impacts even the early stages of MS. This underscores the importance of obesity as a modifiable risk factor for disability accumulation.”

As for why obesity affects MS, he said one theory is that obesity plays a role through its impact on vitamin D levels. “However, using a genetic approach, we have demonstrated that, at least for MS risk, the effect of obesity is independent of vitamin D. This is also likely true for MS progression, as recent trials of vitamin D supplementation have not shown a meaningful impact on MS outcomes.”

According to Dr. Harroud, “other theories suggest that obesity leads to a pro-inflammatory immune shift. Additionally, it has been proposed that obesity may influence the response to disease-modifying therapy by reducing drug bioavailability, potentially necessitating weight-based dosing for some therapies.”

Dr. Alfredsson reported receiving grants from the Swedish Research Council, the Swedish Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation and personal fees from Teva and Biogene Idec. Some of the other study authors reported various disclosures. Dr. Kornberg and Dr. Harroud reported no relevant disclosures.

This article was updated 10/20/23.

MILAN – Obese patients with MS are more likely to rapidly progress through the stages of their disease and experience higher levels of cognitive difficulty than nonobese patients with MS, Swedish researchers reported at the 9th Joint ECTRIMS-ACTRIMS meeting.

In a group of 3,249 subjects tracked for up to 5 years (74% female; mean age, 37.8 years), patients who were obese at diagnosis were 1.41 times more likely than normal-weight patients to reach an Expanded Disability Status Scale (EDSS) score of 3. About 35% of 355 obese subjects (body mass index > 30 kg/m²) reached that level versus 29% of 713 overweight patients (BMI, 25-30) and 28% of 1,475 normal-weight patients (BMI, 18.5-24.99).

Among subjects whose BMI category didn’t change over follow-up, those who were obese at diagnosis were more likely to develop cognitive worsening than those who weren’t obese (hazard ratio, 1.47, 95% confidence interval, 1.08-2.01).

Lars Alfredsson, PhD, a professor at the Karolinska Institutet, Stockholm, who presented the study findings, said in an interview that they fill a gap in knowledge about obesity and MS. “It is known that obesity around the age of 20 or in adolescence is a risk factor for developing MS. But much less is known in regard to progression, and the studies have been very inconclusive.”

The researchers tracked patients via the Swedish MS registry: 1,475 of normal weight, 713 overweight, and 355 obese. Before adjustment for factors such as age, gender, and baseline EDSS, obese subjects were 1.51 times more likely to reach EDSS score 3 than normal-weight subjects.

Obese subjects whose BMI level didn’t change over time were 1.70 times more likely than the nonobese to develop physical worsening as measured by an increased Multiple Sclerosis Impact Scale physical score of 7.5 points or more, and they were 1.36 times more likely to have psychological worsening as measured by increased MSIS-28 psychological score of 7.5 points or more.

Also, among subjects whose BMI didn’t change over time, the likelihood of cognitive disability worsening was 1.47 times higher among obese participants versus nonobese participants. Worsening was defined as an increased Symbol Digit Modalities Test score of 8 points or more.

The level of excess cognitive decline “will affect people significantly,” Dr. Alfredsson said.

While obesity can counterintuitively provide a protective effect in some diseases, he said there’s no sign of such an effect in the subjects.

As for limitations, Dr. Alfredsson noted in his presentation that BMI data is self-reported, and it’s possible that the researchers didn’t adjust their statistics to reflect important confounders.

A 2023 German study of outcomes in MS patients with obesity came to similar conclusions. It tracked 1,066 subjects for up to 6 years and found that “median time to reach EDSS 3 was 0.99 years for patients with BMI of 30 or higher and 1.46 years for nonobese patients. Risk to reach EDSS 3 over 6 years was significantly increased in patients with BMI of at least 30, compared with patients with BMI less than 30 after adjustment for sex, age, smoking (HR, 1.87; 95% CI, 1.3-2.6; P < .001), and independent of disease-modifying therapies.”

However, the German researchers found no link between obesity and higher levels of relapse, contrast-enhancing MRI lesions, or MRI T2 lesion burden.
 

Interpretation and commentary

Could obesity be causing worse outcomes? The new study doesn’t provide insight into cause and effect. However, obesity may speed up progression via low-grade inflammation, Dr. Alfredsson said.

What can clinicians do with the information from the study? If patients are obese, it can be a good idea to more carefully monitor them and use reliable tools to improve their progression, Dr. Alfredsson said.

In an interview, Michael D. Kornberg, MD, PhD, an assistant professor of neurology at Johns Hopkins University, Baltimore, who was not involved with the study, agreed with Dr. Alfredsson that other research has linked obesity early in life to higher rates of MS. He added that “a number of studies have shown that comorbidities in general are usually associated with a higher rate of disability.”

Dr. Kornberg said the new research is important, and he noted that it has a “robust” cohort because of its larger size.

Could patients with MS reverse the risk of progression and other poor outcomes by losing weight? “It’s hard to say,” Dr. Kornberg said. “We have to be cautious when we assume causation. There’s a plausible rationale that obesity might worsen progression in MS, but it could just be a marker of some other factor that reflects a different phenotype of MS.”

He doesn’t think it’s likely that weight loss would “dramatically reverse the biology of MS,” but he said reversing the obesity epidemic would still be a good thing. An interventional study could examine the effects of weight-loss intervention on disability measures, he said, “and that’s the next step.”

Also contacted for commentary, Adil Harroud, MD, a neurologist at McGill University who studies obesity in MS, said research suggests that “obesity seems to exacerbate MS disability. While some studies show no effect, the majority indicate a detrimental impact.”

However, “the effect of obesity on MS progression remains unclear. Animal studies suggest that shifts in immune cell subsets and functions may play a role, but the relevance to humans is yet to be determined,” he said.

Dr. Harroud, who did not take part in the new study, said it’s “one of the largest examining the impact of obesity on MS disability.” He added that “the cohort was relatively early in their disease course, suggesting that obesity impacts even the early stages of MS. This underscores the importance of obesity as a modifiable risk factor for disability accumulation.”

As for why obesity affects MS, he said one theory is that obesity plays a role through its impact on vitamin D levels. “However, using a genetic approach, we have demonstrated that, at least for MS risk, the effect of obesity is independent of vitamin D. This is also likely true for MS progression, as recent trials of vitamin D supplementation have not shown a meaningful impact on MS outcomes.”

According to Dr. Harroud, “other theories suggest that obesity leads to a pro-inflammatory immune shift. Additionally, it has been proposed that obesity may influence the response to disease-modifying therapy by reducing drug bioavailability, potentially necessitating weight-based dosing for some therapies.”

Dr. Alfredsson reported receiving grants from the Swedish Research Council, the Swedish Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation and personal fees from Teva and Biogene Idec. Some of the other study authors reported various disclosures. Dr. Kornberg and Dr. Harroud reported no relevant disclosures.

This article was updated 10/20/23.

MILAN – Obese patients with MS are more likely to rapidly progress through the stages of their disease and experience higher levels of cognitive difficulty than nonobese patients with MS, Swedish researchers reported at the 9th Joint ECTRIMS-ACTRIMS meeting.

In a group of 3,249 subjects tracked for up to 5 years (74% female; mean age, 37.8 years), patients who were obese at diagnosis were 1.41 times more likely than normal-weight patients to reach an Expanded Disability Status Scale (EDSS) score of 3. About 35% of 355 obese subjects (body mass index > 30 kg/m²) reached that level versus 29% of 713 overweight patients (BMI, 25-30) and 28% of 1,475 normal-weight patients (BMI, 18.5-24.99).

Among subjects whose BMI category didn’t change over follow-up, those who were obese at diagnosis were more likely to develop cognitive worsening than those who weren’t obese (hazard ratio, 1.47, 95% confidence interval, 1.08-2.01).

Lars Alfredsson, PhD, a professor at the Karolinska Institutet, Stockholm, who presented the study findings, said in an interview that they fill a gap in knowledge about obesity and MS. “It is known that obesity around the age of 20 or in adolescence is a risk factor for developing MS. But much less is known in regard to progression, and the studies have been very inconclusive.”

The researchers tracked patients via the Swedish MS registry: 1,475 of normal weight, 713 overweight, and 355 obese. Before adjustment for factors such as age, gender, and baseline EDSS, obese subjects were 1.51 times more likely to reach EDSS score 3 than normal-weight subjects.

Obese subjects whose BMI level didn’t change over time were 1.70 times more likely than the nonobese to develop physical worsening as measured by an increased Multiple Sclerosis Impact Scale physical score of 7.5 points or more, and they were 1.36 times more likely to have psychological worsening as measured by increased MSIS-28 psychological score of 7.5 points or more.

Also, among subjects whose BMI didn’t change over time, the likelihood of cognitive disability worsening was 1.47 times higher among obese participants versus nonobese participants. Worsening was defined as an increased Symbol Digit Modalities Test score of 8 points or more.

The level of excess cognitive decline “will affect people significantly,” Dr. Alfredsson said.

While obesity can counterintuitively provide a protective effect in some diseases, he said there’s no sign of such an effect in the subjects.

As for limitations, Dr. Alfredsson noted in his presentation that BMI data is self-reported, and it’s possible that the researchers didn’t adjust their statistics to reflect important confounders.

A 2023 German study of outcomes in MS patients with obesity came to similar conclusions. It tracked 1,066 subjects for up to 6 years and found that “median time to reach EDSS 3 was 0.99 years for patients with BMI of 30 or higher and 1.46 years for nonobese patients. Risk to reach EDSS 3 over 6 years was significantly increased in patients with BMI of at least 30, compared with patients with BMI less than 30 after adjustment for sex, age, smoking (HR, 1.87; 95% CI, 1.3-2.6; P < .001), and independent of disease-modifying therapies.”

However, the German researchers found no link between obesity and higher levels of relapse, contrast-enhancing MRI lesions, or MRI T2 lesion burden.
 

Interpretation and commentary

Could obesity be causing worse outcomes? The new study doesn’t provide insight into cause and effect. However, obesity may speed up progression via low-grade inflammation, Dr. Alfredsson said.

What can clinicians do with the information from the study? If patients are obese, it can be a good idea to more carefully monitor them and use reliable tools to improve their progression, Dr. Alfredsson said.

In an interview, Michael D. Kornberg, MD, PhD, an assistant professor of neurology at Johns Hopkins University, Baltimore, who was not involved with the study, agreed with Dr. Alfredsson that other research has linked obesity early in life to higher rates of MS. He added that “a number of studies have shown that comorbidities in general are usually associated with a higher rate of disability.”

Dr. Kornberg said the new research is important, and he noted that it has a “robust” cohort because of its larger size.

Could patients with MS reverse the risk of progression and other poor outcomes by losing weight? “It’s hard to say,” Dr. Kornberg said. “We have to be cautious when we assume causation. There’s a plausible rationale that obesity might worsen progression in MS, but it could just be a marker of some other factor that reflects a different phenotype of MS.”

He doesn’t think it’s likely that weight loss would “dramatically reverse the biology of MS,” but he said reversing the obesity epidemic would still be a good thing. An interventional study could examine the effects of weight-loss intervention on disability measures, he said, “and that’s the next step.”

Also contacted for commentary, Adil Harroud, MD, a neurologist at McGill University who studies obesity in MS, said research suggests that “obesity seems to exacerbate MS disability. While some studies show no effect, the majority indicate a detrimental impact.”

However, “the effect of obesity on MS progression remains unclear. Animal studies suggest that shifts in immune cell subsets and functions may play a role, but the relevance to humans is yet to be determined,” he said.

Dr. Harroud, who did not take part in the new study, said it’s “one of the largest examining the impact of obesity on MS disability.” He added that “the cohort was relatively early in their disease course, suggesting that obesity impacts even the early stages of MS. This underscores the importance of obesity as a modifiable risk factor for disability accumulation.”

As for why obesity affects MS, he said one theory is that obesity plays a role through its impact on vitamin D levels. “However, using a genetic approach, we have demonstrated that, at least for MS risk, the effect of obesity is independent of vitamin D. This is also likely true for MS progression, as recent trials of vitamin D supplementation have not shown a meaningful impact on MS outcomes.”

According to Dr. Harroud, “other theories suggest that obesity leads to a pro-inflammatory immune shift. Additionally, it has been proposed that obesity may influence the response to disease-modifying therapy by reducing drug bioavailability, potentially necessitating weight-based dosing for some therapies.”

Dr. Alfredsson reported receiving grants from the Swedish Research Council, the Swedish Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation and personal fees from Teva and Biogene Idec. Some of the other study authors reported various disclosures. Dr. Kornberg and Dr. Harroud reported no relevant disclosures.

This article was updated 10/20/23.