Conference Coverage

MILAN – An analysis of medical records of patients diagnosed with neuromyelitis optica spectrum disorder (NMO) found that many may be misdiagnosed: 47% had diagnoses listed for both NMO and multiple sclerosis (MS), a similar disease that requires different treatment, according to a poster presented at the 9th Joint ECTRIMS-ACTRIMS meeting.

“There is a lack of education in differentiating between MS and NMO even in the medical community, which may result in a high misdiagnosis rate,” said study lead author Ka-Ho Wong, MBA, of the University of Utah, Salt Lake City, in an interview.

“NMO was recognized in the late 1800s and was historically thought to be a variant of MS until 1999,” said Michael Levy, MD, PhD, of Harvard Medical School and Massachusetts General Hospital, both in Boston, in an interview.

“They are both relapsing inflammatory disorders of the central nervous system with similarities in symptoms of weakness, numbness, mobility problem, vision defects, pain and fatigue,” said Dr. Levy, who did not take part in the new study. “A blood test for NMO was developed in 2004 and improved over time to the point that it can now reliably distinguish NMO from MS.”

As for therapy, “recent research has confirmed the two conditions are immunologically different and respond to different treatment,” Dr. Levy said. “The treatments developed for MS, especially from the 1990s, are harmful in NMO so it is important to make the diagnosis correctly.”

He added that “we do not recognize overlap between NMO or MS – it’s one or the other.”

Exploring the reasons for misdiagnosis

Mr. Wong, the present study’s lead author, said he and a research team launched the new study to better understand who gets misdiagnosed. “We know that almost 50% of the individuals get misdiagnosed at some point. However, what we don’t know yet is if the influencing factors are social determinants of health or if there are other causes.”

For the study, Mr. Wong and colleagues analyzed data from TriNetX, a health research network with access to medical records from 61 U.S. health care organizations. providing access to electronic medical records that includes sixty-one health care organizations (HCOs) in the United States.

ICD-10 coding statistics from 2008 to 2022 identified 7,657 patients with diagnoses for NMO. Of those, 4,040 (53%) only had diagnoses for NMO, and the rest (3,617, 47%) had diagnoses for both NMO and MS.

The researchers focused on 1,265 patients who had been coded for both diagnoses and had at least three clinical visits. They determined that a patient was misdiagnosed when they had three consecutive diagnoses of the same type. “For example, if they had MS but got misdiagnosed as NMO, once they are confirmed as MS they must have three or more consecutive diagnosis of MS to be considered as misdiagnosed,” Mr. Wong said.

Of the 1,265 subjects, the researchers determined that 308 (24%) had NMO but had been misdiagnosed as having MS, 189 (15%) had MS but were misdiagnosed as having NMO, and 768 (61%) were interchangeably diagnosed with the two conditions over time.

Among these three groups, 70.8%, 73.1%, and 78.4% were female, respectively; and 59.4%, 52.9%, and 53.0% were White, respectively. The percentages of Black patients were 17.2%, 24.3%, and 28.9%, respectively. Information about statistical significance was not provided in the poster.

Dr. Levy said he would “expect most NMO patients to initially be diagnosed with MS. It’s unusual to start with a diagnosis of NMO and then figure out it’s MS.”

As for the larger number of people with interchangeable diagnoses, Dr. Levy said that likely “reflects the messiness of billing codes.” For his part, Mr. Wong said there could be multiple causes for the interchangeable diagnoses: lack of disease knowledge, miscoding, lack of Food and Drug Administration–approved treatment for NMO at the time, and potentially other factors.

What does it all mean?

As for the study’s significance, Mr. Wong said a full workup should be performed before diagnosis, “and a neurologist should never prescribe disease-modifying therapies prior to a confirmation of diagnosis.”

Indeed, some disease-modifying therapies for MS are inappropriate for patients with NMO, Dr. Levy said. “The older medications, including beta-interferons, are among the most harmful to NMO patients. But they are not commonly used as first line for MS as they used to be. In contrast, B cell–depleting medications like ocrelizumab may be helpful in NMO.” 

In regards to diagnosis, Dr. Levy noted that the NMO aquaporin-4 (AQP4) antibody test is “extremely specific and reliable.”

“A positive test result in the context of a clinical presentation of central nervous system inflammation allows for the diagnosis of NMO,” he said. “A negative test result is more complicated and may require some expertise to sort out after a careful review of the history, neurological exam, MRI features, central nervous system testing and other blood test results.”

The study was funded by the Sumaira Foundation. The authors did not provide information about relevant disclosures. Dr. Levy reports personal compensation for advisory board activities from Roche, Genentech, Chugai, Horizon, Alexion and Mitsubishi and grant support from Genentech, Horizon, Alexion, Sanofi, and UCB.

MILAN – An analysis of medical records of patients diagnosed with neuromyelitis optica spectrum disorder (NMO) found that many may be misdiagnosed: 47% had diagnoses listed for both NMO and multiple sclerosis (MS), a similar disease that requires different treatment, according to a poster presented at the 9th Joint ECTRIMS-ACTRIMS meeting.

“There is a lack of education in differentiating between MS and NMO even in the medical community, which may result in a high misdiagnosis rate,” said study lead author Ka-Ho Wong, MBA, of the University of Utah, Salt Lake City, in an interview.

“NMO was recognized in the late 1800s and was historically thought to be a variant of MS until 1999,” said Michael Levy, MD, PhD, of Harvard Medical School and Massachusetts General Hospital, both in Boston, in an interview.

“They are both relapsing inflammatory disorders of the central nervous system with similarities in symptoms of weakness, numbness, mobility problem, vision defects, pain and fatigue,” said Dr. Levy, who did not take part in the new study. “A blood test for NMO was developed in 2004 and improved over time to the point that it can now reliably distinguish NMO from MS.”

As for therapy, “recent research has confirmed the two conditions are immunologically different and respond to different treatment,” Dr. Levy said. “The treatments developed for MS, especially from the 1990s, are harmful in NMO so it is important to make the diagnosis correctly.”

He added that “we do not recognize overlap between NMO or MS – it’s one or the other.”

Exploring the reasons for misdiagnosis

Mr. Wong, the present study’s lead author, said he and a research team launched the new study to better understand who gets misdiagnosed. “We know that almost 50% of the individuals get misdiagnosed at some point. However, what we don’t know yet is if the influencing factors are social determinants of health or if there are other causes.”

For the study, Mr. Wong and colleagues analyzed data from TriNetX, a health research network with access to medical records from 61 U.S. health care organizations. providing access to electronic medical records that includes sixty-one health care organizations (HCOs) in the United States.

ICD-10 coding statistics from 2008 to 2022 identified 7,657 patients with diagnoses for NMO. Of those, 4,040 (53%) only had diagnoses for NMO, and the rest (3,617, 47%) had diagnoses for both NMO and MS.

The researchers focused on 1,265 patients who had been coded for both diagnoses and had at least three clinical visits. They determined that a patient was misdiagnosed when they had three consecutive diagnoses of the same type. “For example, if they had MS but got misdiagnosed as NMO, once they are confirmed as MS they must have three or more consecutive diagnosis of MS to be considered as misdiagnosed,” Mr. Wong said.

Of the 1,265 subjects, the researchers determined that 308 (24%) had NMO but had been misdiagnosed as having MS, 189 (15%) had MS but were misdiagnosed as having NMO, and 768 (61%) were interchangeably diagnosed with the two conditions over time.

Among these three groups, 70.8%, 73.1%, and 78.4% were female, respectively; and 59.4%, 52.9%, and 53.0% were White, respectively. The percentages of Black patients were 17.2%, 24.3%, and 28.9%, respectively. Information about statistical significance was not provided in the poster.

Dr. Levy said he would “expect most NMO patients to initially be diagnosed with MS. It’s unusual to start with a diagnosis of NMO and then figure out it’s MS.”

As for the larger number of people with interchangeable diagnoses, Dr. Levy said that likely “reflects the messiness of billing codes.” For his part, Mr. Wong said there could be multiple causes for the interchangeable diagnoses: lack of disease knowledge, miscoding, lack of Food and Drug Administration–approved treatment for NMO at the time, and potentially other factors.

What does it all mean?

As for the study’s significance, Mr. Wong said a full workup should be performed before diagnosis, “and a neurologist should never prescribe disease-modifying therapies prior to a confirmation of diagnosis.”

Indeed, some disease-modifying therapies for MS are inappropriate for patients with NMO, Dr. Levy said. “The older medications, including beta-interferons, are among the most harmful to NMO patients. But they are not commonly used as first line for MS as they used to be. In contrast, B cell–depleting medications like ocrelizumab may be helpful in NMO.” 

In regards to diagnosis, Dr. Levy noted that the NMO aquaporin-4 (AQP4) antibody test is “extremely specific and reliable.”

“A positive test result in the context of a clinical presentation of central nervous system inflammation allows for the diagnosis of NMO,” he said. “A negative test result is more complicated and may require some expertise to sort out after a careful review of the history, neurological exam, MRI features, central nervous system testing and other blood test results.”

The study was funded by the Sumaira Foundation. The authors did not provide information about relevant disclosures. Dr. Levy reports personal compensation for advisory board activities from Roche, Genentech, Chugai, Horizon, Alexion and Mitsubishi and grant support from Genentech, Horizon, Alexion, Sanofi, and UCB.

MILAN – An analysis of medical records of patients diagnosed with neuromyelitis optica spectrum disorder (NMO) found that many may be misdiagnosed: 47% had diagnoses listed for both NMO and multiple sclerosis (MS), a similar disease that requires different treatment, according to a poster presented at the 9th Joint ECTRIMS-ACTRIMS meeting.

“There is a lack of education in differentiating between MS and NMO even in the medical community, which may result in a high misdiagnosis rate,” said study lead author Ka-Ho Wong, MBA, of the University of Utah, Salt Lake City, in an interview.

“NMO was recognized in the late 1800s and was historically thought to be a variant of MS until 1999,” said Michael Levy, MD, PhD, of Harvard Medical School and Massachusetts General Hospital, both in Boston, in an interview.

“They are both relapsing inflammatory disorders of the central nervous system with similarities in symptoms of weakness, numbness, mobility problem, vision defects, pain and fatigue,” said Dr. Levy, who did not take part in the new study. “A blood test for NMO was developed in 2004 and improved over time to the point that it can now reliably distinguish NMO from MS.”

As for therapy, “recent research has confirmed the two conditions are immunologically different and respond to different treatment,” Dr. Levy said. “The treatments developed for MS, especially from the 1990s, are harmful in NMO so it is important to make the diagnosis correctly.”

He added that “we do not recognize overlap between NMO or MS – it’s one or the other.”

Exploring the reasons for misdiagnosis

Mr. Wong, the present study’s lead author, said he and a research team launched the new study to better understand who gets misdiagnosed. “We know that almost 50% of the individuals get misdiagnosed at some point. However, what we don’t know yet is if the influencing factors are social determinants of health or if there are other causes.”

For the study, Mr. Wong and colleagues analyzed data from TriNetX, a health research network with access to medical records from 61 U.S. health care organizations. providing access to electronic medical records that includes sixty-one health care organizations (HCOs) in the United States.

ICD-10 coding statistics from 2008 to 2022 identified 7,657 patients with diagnoses for NMO. Of those, 4,040 (53%) only had diagnoses for NMO, and the rest (3,617, 47%) had diagnoses for both NMO and MS.

The researchers focused on 1,265 patients who had been coded for both diagnoses and had at least three clinical visits. They determined that a patient was misdiagnosed when they had three consecutive diagnoses of the same type. “For example, if they had MS but got misdiagnosed as NMO, once they are confirmed as MS they must have three or more consecutive diagnosis of MS to be considered as misdiagnosed,” Mr. Wong said.

Of the 1,265 subjects, the researchers determined that 308 (24%) had NMO but had been misdiagnosed as having MS, 189 (15%) had MS but were misdiagnosed as having NMO, and 768 (61%) were interchangeably diagnosed with the two conditions over time.

Among these three groups, 70.8%, 73.1%, and 78.4% were female, respectively; and 59.4%, 52.9%, and 53.0% were White, respectively. The percentages of Black patients were 17.2%, 24.3%, and 28.9%, respectively. Information about statistical significance was not provided in the poster.

Dr. Levy said he would “expect most NMO patients to initially be diagnosed with MS. It’s unusual to start with a diagnosis of NMO and then figure out it’s MS.”

As for the larger number of people with interchangeable diagnoses, Dr. Levy said that likely “reflects the messiness of billing codes.” For his part, Mr. Wong said there could be multiple causes for the interchangeable diagnoses: lack of disease knowledge, miscoding, lack of Food and Drug Administration–approved treatment for NMO at the time, and potentially other factors.

What does it all mean?

As for the study’s significance, Mr. Wong said a full workup should be performed before diagnosis, “and a neurologist should never prescribe disease-modifying therapies prior to a confirmation of diagnosis.”

Indeed, some disease-modifying therapies for MS are inappropriate for patients with NMO, Dr. Levy said. “The older medications, including beta-interferons, are among the most harmful to NMO patients. But they are not commonly used as first line for MS as they used to be. In contrast, B cell–depleting medications like ocrelizumab may be helpful in NMO.” 

In regards to diagnosis, Dr. Levy noted that the NMO aquaporin-4 (AQP4) antibody test is “extremely specific and reliable.”

“A positive test result in the context of a clinical presentation of central nervous system inflammation allows for the diagnosis of NMO,” he said. “A negative test result is more complicated and may require some expertise to sort out after a careful review of the history, neurological exam, MRI features, central nervous system testing and other blood test results.”

The study was funded by the Sumaira Foundation. The authors did not provide information about relevant disclosures. Dr. Levy reports personal compensation for advisory board activities from Roche, Genentech, Chugai, Horizon, Alexion and Mitsubishi and grant support from Genentech, Horizon, Alexion, Sanofi, and UCB.

GLASGOW – Amitriptyline, titrated at low dose, was superior to placebo as a second-line treatment for irritable bowel syndrome (IBS) across multiple outcomes in what the researchers call the largest randomized controlled trial (RCT) of a tricyclic antidepressant in the condition.

Patients who took low-dose amitriptyline were almost twice as likely to report an overall improvement in symptoms as those taking placebo, according to investigators of the Amitriptyline at Low-Dose and Titrated for Irritable Bowel Syndrome as Second-Line Treatment (ATLANTIS) trial. Low-dose amitriptyline appeared safe and well tolerated, they reported.

Hazel Everitt, PhD, professor of primary care research at the University of Southampton, England, presented the findings at the annual conference of the Royal College of General Practitioners.

The data were also published in The Lancet and were presented at the recent United European Gastroenterology Week 2023.

Clinicians “should offer low-dose amitriptyline to patients with IBS whose symptoms do not improve with first-line therapies, with appropriate support to guide patient-led dose titration,” the researchers wrote in the journal article.

Despite first-line treatments such as diet, fiber, and antispasmodics, many patients with IBS continue to have troublesome symptoms, Dr. Everitt said in an interview. “GPs haven’t often prescribed amitriptyline for IBS – probably because of the lack of research evidence for its use in primary care.”

Dr. Everitt added that primary care physicians and patients interviewed for the study welcomed low-dose amitriptyline as a potential additional option, especially with increased patient-led care. “The dose titration document that was developed with patients specifically for the trial enables patients to be more empowered to manage their IBS by helping them to titrate their dose up or down depending on their symptoms and side effects.”

Judith Danby, MBBS, a retired GP who moderated the session at which the ATLANTIS results were presented, said, “Self-titration of the dose equals patient empowerment, and if patients can be helped to manage their own medication, then they will also be more empowered to think about lifestyle change, too.”
 

RCT across 55 practices

The U.K.’s National Institute for Health and Care Excellence guidance for the management of IBS in primary care says clinicians should “consider” using low-dose tricyclic antidepressants as a second-line treatment but highlight the need for an RCT of these drugs carried out solely in primary care.

The ATLANTIS trial was conducted across 55 general practices in England and included adults with Rome IV IBS of any subtype and ongoing symptoms (IBS Severity Scoring System [IBS-SSS] score ≥ 75 points) despite dietary changes and first-line therapies. Participants had normal full blood counts and C-reactive protein measures, negative celiac serology, and no evidence of suicidal ideation. The mean age was 48.5 years, and 68% were female. The mean IBS-SSS score in all participants was 272.8 at baseline.

Patients were randomly assigned in a 1:1 ratio to receive either low-dose oral amitriptyline (10 mg once daily; n = 232) with dose titration over 3 weeks (up to a maximum dose of 30 mg once daily) as determined by a participant’s symptoms and tolerability; or placebo (n = 231). Both groups participated for 6 months. The primary outcome was the IBS-SSS score at 6 months.
 

Amitriptyline

Three-quarters of participants adhered to the therapy over the 6 months, which was particularly notable given that the trial was conducted during the COVID-19 pandemic, according to the researchers.

An intent-to-treat analysis found that at 6 months, amitriptyline was superior to placebo, with a significant mean difference in IBS-SSS score between groups of –27.0 (95% confidence interval, –46.9 to –7.1; P = .0079; mean IBS-SSS, 170.4 vs. 200.1 with amitriptyline and placebo). A secondary outcome showed an increased likelihood of relief of IBS symptoms by subjective global assessment (odds ratio, 1.78; 95% CI. 1.19-2.66; P = .0050).

At 3 months, the difference in mean change in IBS-SSS score between groups was also significant, at –23.3 (95% CI, –42.0 to –4.6; P = .014), the researchers reported.

People who took the drug were 70% more likely to report relief of symptoms on SGA than those who took placebo (P = .08), according to the researchers.

The researchers reported no effect of low-dose amitriptyline on psychiatric symptoms, such as distressing thoughts, anxiety, and depression, during the 6-month follow-up, nor was there any effect on ability to work or go about social activities.

“This was a pragmatic trial performed in a large number of participants with IBS, with an average duration of symptoms of 10 years and with 80% having moderate to severe symptoms at baseline,” Alexander Ford, MD, professor of gastroenterology at the University of Leeds, England, and a coinvestigator on the study, told this news organization. “The fact that amitriptyline showed such a strong effect over placebo in this group of patients, with a mean decrease in IBS-SSS of almost 100 points at both 3 and 6 months, is therefore all the more impressive.”

Mild adverse events, such as dry mouth and drowsiness, were more frequent with low-dose amitriptyline than with placebo,

Dr. Everitt said the ATLANTIS findings could change practice. Previous trials of low-dose amitriptyline for IBS had mostly been small and were conducted in secondary care settings such as gastroenterology clinics with relatively short follow-up times.

“This is a problem for a long-term condition that fluctuates over time and is diagnosed and managed mostly in primary care,” she said. “The ATLANTIS trial is the largest trial of low-dose amitriptyline for IBS undertaken worldwide and was rigorously conducted with 6 months follow-up, providing reliable results that can help inform GPs and patients’ treatment decision-making in usual clinical practice.”

On a pragmatic level, the research group developed a dose titration document for use by patients and GPs. “Both the GPs and participants found the ATLANTIS dose titration document acceptable and helpful,” Dr. Everitt pointed out. She noted, “We’ve made the dose titration document freely available to support patients and clinicians to try low-dose amitriptyline for IBS.”

Dr. Ford and Dr. Everitt received grant funding (institutional) from the National Institute for Health and Care Research.

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

GLASGOW – Amitriptyline, titrated at low dose, was superior to placebo as a second-line treatment for irritable bowel syndrome (IBS) across multiple outcomes in what the researchers call the largest randomized controlled trial (RCT) of a tricyclic antidepressant in the condition.

Patients who took low-dose amitriptyline were almost twice as likely to report an overall improvement in symptoms as those taking placebo, according to investigators of the Amitriptyline at Low-Dose and Titrated for Irritable Bowel Syndrome as Second-Line Treatment (ATLANTIS) trial. Low-dose amitriptyline appeared safe and well tolerated, they reported.

Hazel Everitt, PhD, professor of primary care research at the University of Southampton, England, presented the findings at the annual conference of the Royal College of General Practitioners.

The data were also published in The Lancet and were presented at the recent United European Gastroenterology Week 2023.

Clinicians “should offer low-dose amitriptyline to patients with IBS whose symptoms do not improve with first-line therapies, with appropriate support to guide patient-led dose titration,” the researchers wrote in the journal article.

Despite first-line treatments such as diet, fiber, and antispasmodics, many patients with IBS continue to have troublesome symptoms, Dr. Everitt said in an interview. “GPs haven’t often prescribed amitriptyline for IBS – probably because of the lack of research evidence for its use in primary care.”

Dr. Everitt added that primary care physicians and patients interviewed for the study welcomed low-dose amitriptyline as a potential additional option, especially with increased patient-led care. “The dose titration document that was developed with patients specifically for the trial enables patients to be more empowered to manage their IBS by helping them to titrate their dose up or down depending on their symptoms and side effects.”

Judith Danby, MBBS, a retired GP who moderated the session at which the ATLANTIS results were presented, said, “Self-titration of the dose equals patient empowerment, and if patients can be helped to manage their own medication, then they will also be more empowered to think about lifestyle change, too.”
 

RCT across 55 practices

The U.K.’s National Institute for Health and Care Excellence guidance for the management of IBS in primary care says clinicians should “consider” using low-dose tricyclic antidepressants as a second-line treatment but highlight the need for an RCT of these drugs carried out solely in primary care.

The ATLANTIS trial was conducted across 55 general practices in England and included adults with Rome IV IBS of any subtype and ongoing symptoms (IBS Severity Scoring System [IBS-SSS] score ≥ 75 points) despite dietary changes and first-line therapies. Participants had normal full blood counts and C-reactive protein measures, negative celiac serology, and no evidence of suicidal ideation. The mean age was 48.5 years, and 68% were female. The mean IBS-SSS score in all participants was 272.8 at baseline.

Patients were randomly assigned in a 1:1 ratio to receive either low-dose oral amitriptyline (10 mg once daily; n = 232) with dose titration over 3 weeks (up to a maximum dose of 30 mg once daily) as determined by a participant’s symptoms and tolerability; or placebo (n = 231). Both groups participated for 6 months. The primary outcome was the IBS-SSS score at 6 months.
 

Amitriptyline

Three-quarters of participants adhered to the therapy over the 6 months, which was particularly notable given that the trial was conducted during the COVID-19 pandemic, according to the researchers.

An intent-to-treat analysis found that at 6 months, amitriptyline was superior to placebo, with a significant mean difference in IBS-SSS score between groups of –27.0 (95% confidence interval, –46.9 to –7.1; P = .0079; mean IBS-SSS, 170.4 vs. 200.1 with amitriptyline and placebo). A secondary outcome showed an increased likelihood of relief of IBS symptoms by subjective global assessment (odds ratio, 1.78; 95% CI. 1.19-2.66; P = .0050).

At 3 months, the difference in mean change in IBS-SSS score between groups was also significant, at –23.3 (95% CI, –42.0 to –4.6; P = .014), the researchers reported.

People who took the drug were 70% more likely to report relief of symptoms on SGA than those who took placebo (P = .08), according to the researchers.

The researchers reported no effect of low-dose amitriptyline on psychiatric symptoms, such as distressing thoughts, anxiety, and depression, during the 6-month follow-up, nor was there any effect on ability to work or go about social activities.

“This was a pragmatic trial performed in a large number of participants with IBS, with an average duration of symptoms of 10 years and with 80% having moderate to severe symptoms at baseline,” Alexander Ford, MD, professor of gastroenterology at the University of Leeds, England, and a coinvestigator on the study, told this news organization. “The fact that amitriptyline showed such a strong effect over placebo in this group of patients, with a mean decrease in IBS-SSS of almost 100 points at both 3 and 6 months, is therefore all the more impressive.”

Mild adverse events, such as dry mouth and drowsiness, were more frequent with low-dose amitriptyline than with placebo,

Dr. Everitt said the ATLANTIS findings could change practice. Previous trials of low-dose amitriptyline for IBS had mostly been small and were conducted in secondary care settings such as gastroenterology clinics with relatively short follow-up times.

“This is a problem for a long-term condition that fluctuates over time and is diagnosed and managed mostly in primary care,” she said. “The ATLANTIS trial is the largest trial of low-dose amitriptyline for IBS undertaken worldwide and was rigorously conducted with 6 months follow-up, providing reliable results that can help inform GPs and patients’ treatment decision-making in usual clinical practice.”

On a pragmatic level, the research group developed a dose titration document for use by patients and GPs. “Both the GPs and participants found the ATLANTIS dose titration document acceptable and helpful,” Dr. Everitt pointed out. She noted, “We’ve made the dose titration document freely available to support patients and clinicians to try low-dose amitriptyline for IBS.”

Dr. Ford and Dr. Everitt received grant funding (institutional) from the National Institute for Health and Care Research.

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

GLASGOW – Amitriptyline, titrated at low dose, was superior to placebo as a second-line treatment for irritable bowel syndrome (IBS) across multiple outcomes in what the researchers call the largest randomized controlled trial (RCT) of a tricyclic antidepressant in the condition.

Patients who took low-dose amitriptyline were almost twice as likely to report an overall improvement in symptoms as those taking placebo, according to investigators of the Amitriptyline at Low-Dose and Titrated for Irritable Bowel Syndrome as Second-Line Treatment (ATLANTIS) trial. Low-dose amitriptyline appeared safe and well tolerated, they reported.

Hazel Everitt, PhD, professor of primary care research at the University of Southampton, England, presented the findings at the annual conference of the Royal College of General Practitioners.

The data were also published in The Lancet and were presented at the recent United European Gastroenterology Week 2023.

Clinicians “should offer low-dose amitriptyline to patients with IBS whose symptoms do not improve with first-line therapies, with appropriate support to guide patient-led dose titration,” the researchers wrote in the journal article.

Despite first-line treatments such as diet, fiber, and antispasmodics, many patients with IBS continue to have troublesome symptoms, Dr. Everitt said in an interview. “GPs haven’t often prescribed amitriptyline for IBS – probably because of the lack of research evidence for its use in primary care.”

Dr. Everitt added that primary care physicians and patients interviewed for the study welcomed low-dose amitriptyline as a potential additional option, especially with increased patient-led care. “The dose titration document that was developed with patients specifically for the trial enables patients to be more empowered to manage their IBS by helping them to titrate their dose up or down depending on their symptoms and side effects.”

Judith Danby, MBBS, a retired GP who moderated the session at which the ATLANTIS results were presented, said, “Self-titration of the dose equals patient empowerment, and if patients can be helped to manage their own medication, then they will also be more empowered to think about lifestyle change, too.”
 

RCT across 55 practices

The U.K.’s National Institute for Health and Care Excellence guidance for the management of IBS in primary care says clinicians should “consider” using low-dose tricyclic antidepressants as a second-line treatment but highlight the need for an RCT of these drugs carried out solely in primary care.

The ATLANTIS trial was conducted across 55 general practices in England and included adults with Rome IV IBS of any subtype and ongoing symptoms (IBS Severity Scoring System [IBS-SSS] score ≥ 75 points) despite dietary changes and first-line therapies. Participants had normal full blood counts and C-reactive protein measures, negative celiac serology, and no evidence of suicidal ideation. The mean age was 48.5 years, and 68% were female. The mean IBS-SSS score in all participants was 272.8 at baseline.

Patients were randomly assigned in a 1:1 ratio to receive either low-dose oral amitriptyline (10 mg once daily; n = 232) with dose titration over 3 weeks (up to a maximum dose of 30 mg once daily) as determined by a participant’s symptoms and tolerability; or placebo (n = 231). Both groups participated for 6 months. The primary outcome was the IBS-SSS score at 6 months.
 

Amitriptyline

Three-quarters of participants adhered to the therapy over the 6 months, which was particularly notable given that the trial was conducted during the COVID-19 pandemic, according to the researchers.

An intent-to-treat analysis found that at 6 months, amitriptyline was superior to placebo, with a significant mean difference in IBS-SSS score between groups of –27.0 (95% confidence interval, –46.9 to –7.1; P = .0079; mean IBS-SSS, 170.4 vs. 200.1 with amitriptyline and placebo). A secondary outcome showed an increased likelihood of relief of IBS symptoms by subjective global assessment (odds ratio, 1.78; 95% CI. 1.19-2.66; P = .0050).

At 3 months, the difference in mean change in IBS-SSS score between groups was also significant, at –23.3 (95% CI, –42.0 to –4.6; P = .014), the researchers reported.

People who took the drug were 70% more likely to report relief of symptoms on SGA than those who took placebo (P = .08), according to the researchers.

The researchers reported no effect of low-dose amitriptyline on psychiatric symptoms, such as distressing thoughts, anxiety, and depression, during the 6-month follow-up, nor was there any effect on ability to work or go about social activities.

“This was a pragmatic trial performed in a large number of participants with IBS, with an average duration of symptoms of 10 years and with 80% having moderate to severe symptoms at baseline,” Alexander Ford, MD, professor of gastroenterology at the University of Leeds, England, and a coinvestigator on the study, told this news organization. “The fact that amitriptyline showed such a strong effect over placebo in this group of patients, with a mean decrease in IBS-SSS of almost 100 points at both 3 and 6 months, is therefore all the more impressive.”

Mild adverse events, such as dry mouth and drowsiness, were more frequent with low-dose amitriptyline than with placebo,

Dr. Everitt said the ATLANTIS findings could change practice. Previous trials of low-dose amitriptyline for IBS had mostly been small and were conducted in secondary care settings such as gastroenterology clinics with relatively short follow-up times.

“This is a problem for a long-term condition that fluctuates over time and is diagnosed and managed mostly in primary care,” she said. “The ATLANTIS trial is the largest trial of low-dose amitriptyline for IBS undertaken worldwide and was rigorously conducted with 6 months follow-up, providing reliable results that can help inform GPs and patients’ treatment decision-making in usual clinical practice.”

On a pragmatic level, the research group developed a dose titration document for use by patients and GPs. “Both the GPs and participants found the ATLANTIS dose titration document acceptable and helpful,” Dr. Everitt pointed out. She noted, “We’ve made the dose titration document freely available to support patients and clinicians to try low-dose amitriptyline for IBS.”

Dr. Ford and Dr. Everitt received grant funding (institutional) from the National Institute for Health and Care Research.

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

MILAN – Two physicians agreed that there’s no doubt that Epstein-Barr virus (EBV) is deeply linked to multiple sclerosis (MS), but they diverged over the extent of its role in a joint presentation at the 9th Joint ECTRIMS-ACTRIMS meeting.

Armed with the findings of his own landmark 2022 study into EBV and MS, Harvard Medical School, Boston, professor of medicine Alberto Ascherio, MD, DrPH, argued that they’re tightly connected. But rheumatologist William H. Robinson, MD, PhD, of Stanford (Calif.) University, said that while he also believes EBV plays a significant role in MS, “there’s likely a role for a second hit” – some other factor. “Why are 95% of us EBV-infected, but only a small subset ultimately develop MS or ... other autoimmune diseases?”

As a 2023 review noted, researchers have puzzled over the connection between EBV and MS since the early 1980s. “Until that point, EBV was primarily viewed as a cancer-causing agent, but the culmination of evidence now shows that EBV has a pivotal role in development of MS.” But it’s not clear how EBV – which strikes more than an estimated 95% of humans and causes mononucleosis – manages to trigger MS.
 

A rare complication of EBV infection

In the 2022 study, Dr. Ascherio aimed to understand exactly how deeply EBV and MS are connected by analyzing serum data gathered from more than 10 million active-duty members of the U.S. military. Of those, 955 were diagnosed with MS.

The researchers focused on 801 subjects with MS and matched them to 1,566 controls. Only 1 of the 801 subjects with MS had a negative EBV test prior to diagnosis, a fact that researchers believe could be due to a factor such as a failure to seroconvert during infection. “At baseline, 35 MS cases and 107 controls were EBV-negative,” the study reported. “All but one of these 35 EBV-negative MS cases became infected with EBV during the follow-up.”

Overall, subjects who were positive for EBV were 32.4 times to develop MS than those who weren’t (95% confidence interval, 4.3-245.3; P < 0.001).

Is it possible that immune dysregulation from MS precedes EBV infection? The researchers analyzed viruses in 30 subjects with MS – before and after MS onset – and in 30 controls. The findings suggested that EBV was the major player, Dr. Ascherio said.

Researchers also focused on cytomegalovirus (CMV) infection, which is closely related to EBV and to the chicken pox virus. “CMV seroconversion is not associated with MS, and positivity for CMV at baseline was associated with a modestly lower risk of MS,” Dr. Ascherio said.

In the big picture, “this data establishes beyond reasonable doubt that MS is a rare complication of EBV infection,” Dr. Ascherio said. “The main question now is whether the virus triggers an immune process that then is self-maintained, or whether the presence of the infection keeps feeding the immune process.”
 

Inadequate evidence for causation

In his presentation, Dr. Robinson asked: “Does EBV cause MS? Really? All of MS? In humans [with MS], yes, we found monoclonal antibodies expressed by the B cells that bound to EBV. But we also found spinal fluid B cells and coding antibodies that bound to multiple other viruses, including rubella, VZV [varicella-zoster virus/chickenpox], CMV, and HSV [herpes simplex virus]. And there’s even a measles reactive antibody there.”

And there’s evidence that human herpes virus type 6 (HHV-6) and HHV-6A could be linked to MS: “Maybe HHV-6 or HHV-6A is the cause of MS in a subset of patients,” Dr. Robinson said. Research suggests that pox viruses could be another possible cause, he said.

He added: “I’m a rheumatologist, and I see patients in the clinic and in the hospital who have lupus, a disease highly associated with EBV infection. But they definitely do not have MS, nor do they have RA [rheumatoid arthritis], and likewise your MS patients don’t have lupus. What’s up with all these diseases potentially being linked to EBV?”
 

A missing piece of the puzzle?

In a discussion period, Dr. Ascherio responded to Dr. Robinson by saying he’s waiting to see evidence that patients with the other diseases linked to EBV don’t develop them if they’re EBV-negative. Dr. Ascherio added that it’s possible that there are different strains of EBV, and some may be more likely to cause MS.

What does this all mean for MS prevention? In a commentary published with Dr. Ascherio’s 2022 study, Dr. Robinson and a coauthor asked: “Would a vaccine against EBV protect against MS? Can the B cells that dwell in the CSF be killed or inactivated with therapeutics? Would antivirals that target EBV provide effective therapy, especially when given early in the course of disease? Now that the initial trigger for MS has been identified, perhaps MS could be eradicated.”

Dr. Ascherio discloses speaker/consultant relationships with Prada Foundation, WebMD, Biogen, Moderna, Merck, Roche, and GSK. Dr. Robinson discloses unspecified relationships with Altreca and Flatiron Bio, and he is a coinventor on a patent application filed by Stanford University that includes antibodies to EBV.
 

MILAN – Two physicians agreed that there’s no doubt that Epstein-Barr virus (EBV) is deeply linked to multiple sclerosis (MS), but they diverged over the extent of its role in a joint presentation at the 9th Joint ECTRIMS-ACTRIMS meeting.

Armed with the findings of his own landmark 2022 study into EBV and MS, Harvard Medical School, Boston, professor of medicine Alberto Ascherio, MD, DrPH, argued that they’re tightly connected. But rheumatologist William H. Robinson, MD, PhD, of Stanford (Calif.) University, said that while he also believes EBV plays a significant role in MS, “there’s likely a role for a second hit” – some other factor. “Why are 95% of us EBV-infected, but only a small subset ultimately develop MS or ... other autoimmune diseases?”

As a 2023 review noted, researchers have puzzled over the connection between EBV and MS since the early 1980s. “Until that point, EBV was primarily viewed as a cancer-causing agent, but the culmination of evidence now shows that EBV has a pivotal role in development of MS.” But it’s not clear how EBV – which strikes more than an estimated 95% of humans and causes mononucleosis – manages to trigger MS.
 

A rare complication of EBV infection

In the 2022 study, Dr. Ascherio aimed to understand exactly how deeply EBV and MS are connected by analyzing serum data gathered from more than 10 million active-duty members of the U.S. military. Of those, 955 were diagnosed with MS.

The researchers focused on 801 subjects with MS and matched them to 1,566 controls. Only 1 of the 801 subjects with MS had a negative EBV test prior to diagnosis, a fact that researchers believe could be due to a factor such as a failure to seroconvert during infection. “At baseline, 35 MS cases and 107 controls were EBV-negative,” the study reported. “All but one of these 35 EBV-negative MS cases became infected with EBV during the follow-up.”

Overall, subjects who were positive for EBV were 32.4 times to develop MS than those who weren’t (95% confidence interval, 4.3-245.3; P < 0.001).

Is it possible that immune dysregulation from MS precedes EBV infection? The researchers analyzed viruses in 30 subjects with MS – before and after MS onset – and in 30 controls. The findings suggested that EBV was the major player, Dr. Ascherio said.

Researchers also focused on cytomegalovirus (CMV) infection, which is closely related to EBV and to the chicken pox virus. “CMV seroconversion is not associated with MS, and positivity for CMV at baseline was associated with a modestly lower risk of MS,” Dr. Ascherio said.

In the big picture, “this data establishes beyond reasonable doubt that MS is a rare complication of EBV infection,” Dr. Ascherio said. “The main question now is whether the virus triggers an immune process that then is self-maintained, or whether the presence of the infection keeps feeding the immune process.”
 

Inadequate evidence for causation

In his presentation, Dr. Robinson asked: “Does EBV cause MS? Really? All of MS? In humans [with MS], yes, we found monoclonal antibodies expressed by the B cells that bound to EBV. But we also found spinal fluid B cells and coding antibodies that bound to multiple other viruses, including rubella, VZV [varicella-zoster virus/chickenpox], CMV, and HSV [herpes simplex virus]. And there’s even a measles reactive antibody there.”

And there’s evidence that human herpes virus type 6 (HHV-6) and HHV-6A could be linked to MS: “Maybe HHV-6 or HHV-6A is the cause of MS in a subset of patients,” Dr. Robinson said. Research suggests that pox viruses could be another possible cause, he said.

He added: “I’m a rheumatologist, and I see patients in the clinic and in the hospital who have lupus, a disease highly associated with EBV infection. But they definitely do not have MS, nor do they have RA [rheumatoid arthritis], and likewise your MS patients don’t have lupus. What’s up with all these diseases potentially being linked to EBV?”
 

A missing piece of the puzzle?

In a discussion period, Dr. Ascherio responded to Dr. Robinson by saying he’s waiting to see evidence that patients with the other diseases linked to EBV don’t develop them if they’re EBV-negative. Dr. Ascherio added that it’s possible that there are different strains of EBV, and some may be more likely to cause MS.

What does this all mean for MS prevention? In a commentary published with Dr. Ascherio’s 2022 study, Dr. Robinson and a coauthor asked: “Would a vaccine against EBV protect against MS? Can the B cells that dwell in the CSF be killed or inactivated with therapeutics? Would antivirals that target EBV provide effective therapy, especially when given early in the course of disease? Now that the initial trigger for MS has been identified, perhaps MS could be eradicated.”

Dr. Ascherio discloses speaker/consultant relationships with Prada Foundation, WebMD, Biogen, Moderna, Merck, Roche, and GSK. Dr. Robinson discloses unspecified relationships with Altreca and Flatiron Bio, and he is a coinventor on a patent application filed by Stanford University that includes antibodies to EBV.
 

MILAN – Two physicians agreed that there’s no doubt that Epstein-Barr virus (EBV) is deeply linked to multiple sclerosis (MS), but they diverged over the extent of its role in a joint presentation at the 9th Joint ECTRIMS-ACTRIMS meeting.

Armed with the findings of his own landmark 2022 study into EBV and MS, Harvard Medical School, Boston, professor of medicine Alberto Ascherio, MD, DrPH, argued that they’re tightly connected. But rheumatologist William H. Robinson, MD, PhD, of Stanford (Calif.) University, said that while he also believes EBV plays a significant role in MS, “there’s likely a role for a second hit” – some other factor. “Why are 95% of us EBV-infected, but only a small subset ultimately develop MS or ... other autoimmune diseases?”

As a 2023 review noted, researchers have puzzled over the connection between EBV and MS since the early 1980s. “Until that point, EBV was primarily viewed as a cancer-causing agent, but the culmination of evidence now shows that EBV has a pivotal role in development of MS.” But it’s not clear how EBV – which strikes more than an estimated 95% of humans and causes mononucleosis – manages to trigger MS.
 

A rare complication of EBV infection

In the 2022 study, Dr. Ascherio aimed to understand exactly how deeply EBV and MS are connected by analyzing serum data gathered from more than 10 million active-duty members of the U.S. military. Of those, 955 were diagnosed with MS.

The researchers focused on 801 subjects with MS and matched them to 1,566 controls. Only 1 of the 801 subjects with MS had a negative EBV test prior to diagnosis, a fact that researchers believe could be due to a factor such as a failure to seroconvert during infection. “At baseline, 35 MS cases and 107 controls were EBV-negative,” the study reported. “All but one of these 35 EBV-negative MS cases became infected with EBV during the follow-up.”

Overall, subjects who were positive for EBV were 32.4 times to develop MS than those who weren’t (95% confidence interval, 4.3-245.3; P < 0.001).

Is it possible that immune dysregulation from MS precedes EBV infection? The researchers analyzed viruses in 30 subjects with MS – before and after MS onset – and in 30 controls. The findings suggested that EBV was the major player, Dr. Ascherio said.

Researchers also focused on cytomegalovirus (CMV) infection, which is closely related to EBV and to the chicken pox virus. “CMV seroconversion is not associated with MS, and positivity for CMV at baseline was associated with a modestly lower risk of MS,” Dr. Ascherio said.

In the big picture, “this data establishes beyond reasonable doubt that MS is a rare complication of EBV infection,” Dr. Ascherio said. “The main question now is whether the virus triggers an immune process that then is self-maintained, or whether the presence of the infection keeps feeding the immune process.”
 

Inadequate evidence for causation

In his presentation, Dr. Robinson asked: “Does EBV cause MS? Really? All of MS? In humans [with MS], yes, we found monoclonal antibodies expressed by the B cells that bound to EBV. But we also found spinal fluid B cells and coding antibodies that bound to multiple other viruses, including rubella, VZV [varicella-zoster virus/chickenpox], CMV, and HSV [herpes simplex virus]. And there’s even a measles reactive antibody there.”

And there’s evidence that human herpes virus type 6 (HHV-6) and HHV-6A could be linked to MS: “Maybe HHV-6 or HHV-6A is the cause of MS in a subset of patients,” Dr. Robinson said. Research suggests that pox viruses could be another possible cause, he said.

He added: “I’m a rheumatologist, and I see patients in the clinic and in the hospital who have lupus, a disease highly associated with EBV infection. But they definitely do not have MS, nor do they have RA [rheumatoid arthritis], and likewise your MS patients don’t have lupus. What’s up with all these diseases potentially being linked to EBV?”
 

A missing piece of the puzzle?

In a discussion period, Dr. Ascherio responded to Dr. Robinson by saying he’s waiting to see evidence that patients with the other diseases linked to EBV don’t develop them if they’re EBV-negative. Dr. Ascherio added that it’s possible that there are different strains of EBV, and some may be more likely to cause MS.

What does this all mean for MS prevention? In a commentary published with Dr. Ascherio’s 2022 study, Dr. Robinson and a coauthor asked: “Would a vaccine against EBV protect against MS? Can the B cells that dwell in the CSF be killed or inactivated with therapeutics? Would antivirals that target EBV provide effective therapy, especially when given early in the course of disease? Now that the initial trigger for MS has been identified, perhaps MS could be eradicated.”

Dr. Ascherio discloses speaker/consultant relationships with Prada Foundation, WebMD, Biogen, Moderna, Merck, Roche, and GSK. Dr. Robinson discloses unspecified relationships with Altreca and Flatiron Bio, and he is a coinventor on a patent application filed by Stanford University that includes antibodies to EBV.
 

VANCOUVER – In patients with type 2 diabetes, sodium-glucose cotransporter 2 (SGLT2) inhibitors as an adjunct to metformin were not associated with an increase in fracture risk, according to a new real-world study.

There have been some reports of an increase in fracture risk associated with SGLT2 inhibitors, and it was observed in the phase 3 CANVAS trial of canagliflozin (Invokana), which led to a Food and Drug Administration warning of fracture risks associated with canagliflozin use. Some ensuing studies did not show an increased risk, but these studies were generally less than a year in duration and may have missed longer-term risk, according to Veerle van Hulten, MSc.

“Fracture risk is something that takes a long time to develop, so we wanted to have a longer follow-up. We looked into the CPRD [Clinical Practice Research Datalink], which is a beautiful database containing real-world data from primary care practices,” said Ms. van Hulten, a PhD student at Maastricht (the Netherlands) University, who presented the study at the annual meeting of the American Society for Bone and Mineral Research.

Ms. van Hulten and colleagues compared SGLT2 inhibitors with dipeptidyl peptidase–4 (DPP-4) inhibitors because the latter are used in similar populations and have been shown to have no effect on fracture risk.

“What we found is that SGLT2 inhibitors are not associated with an increased fracture risk. Even with a duration of use of over 811 days, we did not observe an increased hazard ratio for fractures when compared DPP-4 inhibitor users,” Ms. van Hulten said.

SGLT2 inhibitors reduce blood sugar by increasing elimination of sugar in the urine. They also increase phosphate, reduce calcium, and increase parathyroid hormone, which could in turn negatively affect bone turnover, according to Ms. van Hulten.

In the new study, conducted between January 2013 and June 2020, the researchers used propensity score matching to compare adult patients, including 13,807 who were prescribed SGLT2 inhibitors and 28,524 who were prescribed DPP-4 inhibitors for the first time. They matched patients based on demographics, comorbidities, comedication, and lifestyle factors.

There was no association between SGLT2 inhibitor use and overall fracture risk or major osteoporotic, hip, vertebral, humerus, radius, or ulna fractures. There was no difference in risk for any duration of use, even with the longest duration of use of 811 days (adjusted hazard ratio, 1.0). There were no differences among specific SGLT2 inhibitors, including canagliflozin (aHR, 1.12; 95% confidence interval, 0.73-1.72). Analyses by sex and age also revealed no statistically significant differences between the two drug classes.

During the Q&A session after the presentation, Sarah Berry, MD, MPH, an associate professor of medicine at Harvard Medical School and a clinical researcher at the Marcus Institute for Aging Research, both in Boston, noted the trend toward an increase in fracture risk in the first 90 days. “It looked like there was something going on in the first 90 days, and then after that the results were much closer to the null. I would put out maybe another potential mechanism whereby the SGLT2 inhibitors might cause fracture, and that’s falls. They cause polyuria, and any drug you give that causes women to rush to the bathroom may well cause fractures, particularly in the short term,” Dr. Berry said.

Ms. van Hulten agreed, and also brought up that the drugs can cause osmotic diuresis. That can lead to hypovolemia, the symptoms of which include weakness, fatigue, and dizziness. “And increased falls, of course, increases fracture risk. We do not expect anything to happen to bone metabolism in the first 90 days. I think we can agree that there would be more time needed to alter the bone enough to increase fracture risk, so we expect that this trend toward an increased risk might be attributable to that increased fall risk that might occur with SGLT2 inhibitor use,” she said.

It’s possible that such a mechanism explains increased fracture risk seen in some earlier short-term studies, she added.

Overall, Ms. van Hulten said that the results should provide some confidence in SGLT2 inhibitors, though more work needs to be done. “I think we provide reassurance that SGLT2 inhibitors are safe to use. However, we still only have a median follow-up of 1.6 years. It’s not as long as we maybe would like, but it’s the best we can do with the data available, since the SGLT2 inhibitors have only been used since 2013. So maybe it’s best to prescribe it and keep [fall risk] in mind and look into the effects later on again, but it seems to be safe to use.”

The study received funding from the Novo Nordisk Foundation. Ms. van Hulten and Dr. Berry reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

VANCOUVER – In patients with type 2 diabetes, sodium-glucose cotransporter 2 (SGLT2) inhibitors as an adjunct to metformin were not associated with an increase in fracture risk, according to a new real-world study.

There have been some reports of an increase in fracture risk associated with SGLT2 inhibitors, and it was observed in the phase 3 CANVAS trial of canagliflozin (Invokana), which led to a Food and Drug Administration warning of fracture risks associated with canagliflozin use. Some ensuing studies did not show an increased risk, but these studies were generally less than a year in duration and may have missed longer-term risk, according to Veerle van Hulten, MSc.

“Fracture risk is something that takes a long time to develop, so we wanted to have a longer follow-up. We looked into the CPRD [Clinical Practice Research Datalink], which is a beautiful database containing real-world data from primary care practices,” said Ms. van Hulten, a PhD student at Maastricht (the Netherlands) University, who presented the study at the annual meeting of the American Society for Bone and Mineral Research.

Ms. van Hulten and colleagues compared SGLT2 inhibitors with dipeptidyl peptidase–4 (DPP-4) inhibitors because the latter are used in similar populations and have been shown to have no effect on fracture risk.

“What we found is that SGLT2 inhibitors are not associated with an increased fracture risk. Even with a duration of use of over 811 days, we did not observe an increased hazard ratio for fractures when compared DPP-4 inhibitor users,” Ms. van Hulten said.

SGLT2 inhibitors reduce blood sugar by increasing elimination of sugar in the urine. They also increase phosphate, reduce calcium, and increase parathyroid hormone, which could in turn negatively affect bone turnover, according to Ms. van Hulten.

In the new study, conducted between January 2013 and June 2020, the researchers used propensity score matching to compare adult patients, including 13,807 who were prescribed SGLT2 inhibitors and 28,524 who were prescribed DPP-4 inhibitors for the first time. They matched patients based on demographics, comorbidities, comedication, and lifestyle factors.

There was no association between SGLT2 inhibitor use and overall fracture risk or major osteoporotic, hip, vertebral, humerus, radius, or ulna fractures. There was no difference in risk for any duration of use, even with the longest duration of use of 811 days (adjusted hazard ratio, 1.0). There were no differences among specific SGLT2 inhibitors, including canagliflozin (aHR, 1.12; 95% confidence interval, 0.73-1.72). Analyses by sex and age also revealed no statistically significant differences between the two drug classes.

During the Q&A session after the presentation, Sarah Berry, MD, MPH, an associate professor of medicine at Harvard Medical School and a clinical researcher at the Marcus Institute for Aging Research, both in Boston, noted the trend toward an increase in fracture risk in the first 90 days. “It looked like there was something going on in the first 90 days, and then after that the results were much closer to the null. I would put out maybe another potential mechanism whereby the SGLT2 inhibitors might cause fracture, and that’s falls. They cause polyuria, and any drug you give that causes women to rush to the bathroom may well cause fractures, particularly in the short term,” Dr. Berry said.

Ms. van Hulten agreed, and also brought up that the drugs can cause osmotic diuresis. That can lead to hypovolemia, the symptoms of which include weakness, fatigue, and dizziness. “And increased falls, of course, increases fracture risk. We do not expect anything to happen to bone metabolism in the first 90 days. I think we can agree that there would be more time needed to alter the bone enough to increase fracture risk, so we expect that this trend toward an increased risk might be attributable to that increased fall risk that might occur with SGLT2 inhibitor use,” she said.

It’s possible that such a mechanism explains increased fracture risk seen in some earlier short-term studies, she added.

Overall, Ms. van Hulten said that the results should provide some confidence in SGLT2 inhibitors, though more work needs to be done. “I think we provide reassurance that SGLT2 inhibitors are safe to use. However, we still only have a median follow-up of 1.6 years. It’s not as long as we maybe would like, but it’s the best we can do with the data available, since the SGLT2 inhibitors have only been used since 2013. So maybe it’s best to prescribe it and keep [fall risk] in mind and look into the effects later on again, but it seems to be safe to use.”

The study received funding from the Novo Nordisk Foundation. Ms. van Hulten and Dr. Berry reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

VANCOUVER – In patients with type 2 diabetes, sodium-glucose cotransporter 2 (SGLT2) inhibitors as an adjunct to metformin were not associated with an increase in fracture risk, according to a new real-world study.

There have been some reports of an increase in fracture risk associated with SGLT2 inhibitors, and it was observed in the phase 3 CANVAS trial of canagliflozin (Invokana), which led to a Food and Drug Administration warning of fracture risks associated with canagliflozin use. Some ensuing studies did not show an increased risk, but these studies were generally less than a year in duration and may have missed longer-term risk, according to Veerle van Hulten, MSc.

“Fracture risk is something that takes a long time to develop, so we wanted to have a longer follow-up. We looked into the CPRD [Clinical Practice Research Datalink], which is a beautiful database containing real-world data from primary care practices,” said Ms. van Hulten, a PhD student at Maastricht (the Netherlands) University, who presented the study at the annual meeting of the American Society for Bone and Mineral Research.

Ms. van Hulten and colleagues compared SGLT2 inhibitors with dipeptidyl peptidase–4 (DPP-4) inhibitors because the latter are used in similar populations and have been shown to have no effect on fracture risk.

“What we found is that SGLT2 inhibitors are not associated with an increased fracture risk. Even with a duration of use of over 811 days, we did not observe an increased hazard ratio for fractures when compared DPP-4 inhibitor users,” Ms. van Hulten said.

SGLT2 inhibitors reduce blood sugar by increasing elimination of sugar in the urine. They also increase phosphate, reduce calcium, and increase parathyroid hormone, which could in turn negatively affect bone turnover, according to Ms. van Hulten.

In the new study, conducted between January 2013 and June 2020, the researchers used propensity score matching to compare adult patients, including 13,807 who were prescribed SGLT2 inhibitors and 28,524 who were prescribed DPP-4 inhibitors for the first time. They matched patients based on demographics, comorbidities, comedication, and lifestyle factors.

There was no association between SGLT2 inhibitor use and overall fracture risk or major osteoporotic, hip, vertebral, humerus, radius, or ulna fractures. There was no difference in risk for any duration of use, even with the longest duration of use of 811 days (adjusted hazard ratio, 1.0). There were no differences among specific SGLT2 inhibitors, including canagliflozin (aHR, 1.12; 95% confidence interval, 0.73-1.72). Analyses by sex and age also revealed no statistically significant differences between the two drug classes.

During the Q&A session after the presentation, Sarah Berry, MD, MPH, an associate professor of medicine at Harvard Medical School and a clinical researcher at the Marcus Institute for Aging Research, both in Boston, noted the trend toward an increase in fracture risk in the first 90 days. “It looked like there was something going on in the first 90 days, and then after that the results were much closer to the null. I would put out maybe another potential mechanism whereby the SGLT2 inhibitors might cause fracture, and that’s falls. They cause polyuria, and any drug you give that causes women to rush to the bathroom may well cause fractures, particularly in the short term,” Dr. Berry said.

Ms. van Hulten agreed, and also brought up that the drugs can cause osmotic diuresis. That can lead to hypovolemia, the symptoms of which include weakness, fatigue, and dizziness. “And increased falls, of course, increases fracture risk. We do not expect anything to happen to bone metabolism in the first 90 days. I think we can agree that there would be more time needed to alter the bone enough to increase fracture risk, so we expect that this trend toward an increased risk might be attributable to that increased fall risk that might occur with SGLT2 inhibitor use,” she said.

It’s possible that such a mechanism explains increased fracture risk seen in some earlier short-term studies, she added.

Overall, Ms. van Hulten said that the results should provide some confidence in SGLT2 inhibitors, though more work needs to be done. “I think we provide reassurance that SGLT2 inhibitors are safe to use. However, we still only have a median follow-up of 1.6 years. It’s not as long as we maybe would like, but it’s the best we can do with the data available, since the SGLT2 inhibitors have only been used since 2013. So maybe it’s best to prescribe it and keep [fall risk] in mind and look into the effects later on again, but it seems to be safe to use.”

The study received funding from the Novo Nordisk Foundation. Ms. van Hulten and Dr. Berry reported no relevant financial relationships.

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.

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.

COPENHAGEN – A real-time, blood-sensing capsule that detects upper gastrointestinal bleeding (UGIB) is safe and effective for patients before undergoing upper endoscopy, according to results from the first U.S.-based open-label, single-arm comparative clinical trial of a novel bleeding sensor for patients with suspected UGIB. It is also the largest such trial.

The capsule (PillSense, EnteraSense) is rapidly deployed, safe to use, and easy to interpret, study researchers say. In under 7 minutes, it correctly detected the presence of blood in 26 of 28 patients and its absence in 87 of 96 patients, as confirmed afterward by esophagogastroduodenoscopy (EGD).

“The use of the PillSense system will positively impact patient outcomes by providing early diagnosis, triaging, and directing care for UGIB,” said Karl Akiki, MD, study lead, who is in the division of gastroenterology and hepatology at the Mayo Clinic, Rochester, Minn. He presented the results at the annual United European Gastroenterology Week.

“Due to its ability to rapidly diagnose UGIB, it helps us, as doctors, expedite accurate clinical decision-making while also optimizing services to ensure the maximum number of patients obtain the best outcome,” he told this news organization.

“There are some pre-endoscopic assessment scores, like the Rockell or the Glasgow-Blatchford score, but they have limited clinical utility in predicting and confirming bleeding in suspected patients,” explained Dr. Akiki. He highlighted the need for a novel device that is rapid, accurate, and safe to use. He also pointed out that despite being the gold standard for diagnosis, EGD remains challenging in terms of time, personnel, and resources.

“The results of our study show the PillSense is a good diagnostic tool that will aid triage,” he said. He noted that PillSense and EGD supplement each other in patient care.

It’s not a device to replace the EGD itself,” he explained, but given the results from the capsule, it will act “as a kind of a bridge that helps us to determine which patients should undergo EGD.”

Optical sensing technology

The researchers aimed to assess the safety and efficacy of the PillSense system for patients with suspected UGIB. They enrolled 131 patients (mean age, 62 years), 60% of whom were men. The most common presenting symptoms for UGIB were melena (52%), anemia (41%), and hematemesis (15%). Five participants withdrew consent before capsule ingestion, and for two patients, primary endpoint data were missing. This left an intent-to-treat population of 124 patients; 110 completed the study.

Patients were asked to swallow the capsule and to lay on their left side. The PillSense is based on optical sensing technology that uses an optical signature of blood in the gut. The device differentiates blood from any other liquids that may be present. After 5-7 minutes, the device gathers and transmits data wirelessly to an external, handheld receiver that processes binary data and indicates either “blood detected” or “no blood detected” in the upper GI tract, explained Dr. Akiki.

Following the capsule reading, patients underwent EGD within 4 hours. This enabled the researchers to compare data between the two modalities. Follow-up visits were conducted on days 7, 14, and 21 to ensure the capsule had passed from the body. Endoscopists were blinded to the capsule result when reading the EGD.

Primary endpoints were the sensitivity and specificity of the device; secondary endpoints were positive predictive value, negative predictive value, successful passage of the capsule, and safety.
 

Rapid and accurate

The researchers determined the efficiency of the capsule in correctly detecting a UGIB. The capsule’s positive and negative predictive values were 74.3% and 97.8%, respectively.

“We achieved a sensitivity of around 93% (92.9%; P = 0.024) with the PillSense capsule and a specificity of 91% (90.6%; P < .001]), which were pretty good. We also detected a range from minimal bleeding – so, speckles of blood to large amounts of active bleeding covering the entire stomach,” reported Dr. Akiki.

There were no differences in terms of patient demographics, laboratory results, or concomitant use of medications. PillSense recording time was a mean of 6.71 minutes, the time from capsule ingestion to EGD was a mean of 55 minutes, and the time to capsule passage through the GI tract was 3.6 days. Most bleeds were found to be in the stomach (18/30; 60%), followed by the duodenum (5/30; 16.6%).

Various capsules for detecting UGIB are under development or are already available, but unlike some of the others, “[the PillSense] is not a video capsule,” said Dr. Akiki. “It does not take pictures at all but is more of a photo sensor capsule that measures the absorption of wavelengths.”

This explains why the PillSense was so rapid – results were available in around 7 minutes and did not require an interpretation by a physician, he explained. “Trained non-physician personnel can use it, and this is where it differs from other devices, such as video capsules that require someone highly trained to interpret the output. It’s an easy procedure and process to follow.”

The PillSense has value in improving workflow, Dr. Akiki said. “If we had someone come in during the night with a suspected upper GI bleed, we could give them the capsule, determine if they need an EGD or not, and potentially postpone it to a time – say, the morning, when more resources are available – freeing up the night for emergency cases. It helps me, as a physician, to determine which patients to send to EGD immediately or which to wait.”

He added that more studies are needed in the postmarketing phase to understand optimal use of the device and to define the exact clinical pathway for optimal implementation.

The device was approved by the U.S. Food and Drug Administration in February. Dr. Akiki noted that there were no adverse events or deaths related to the capsule.

Co-moderator, Philip Chiu, MD, a gastroenterologist from the Chinese University of Hong Kong, said, “It’s an interesting study, because sometimes we can’t differentiate by clinical symptoms as to whether this is a problem of continuous bleeding or something else. The capsule might help us in our decision-making in this respect and help determine whether we should scope the patients or just manage conservatively.”

Dr. Akiki and Dr. Chiu have disclosed no relevant financial relationships.

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

COPENHAGEN – A real-time, blood-sensing capsule that detects upper gastrointestinal bleeding (UGIB) is safe and effective for patients before undergoing upper endoscopy, according to results from the first U.S.-based open-label, single-arm comparative clinical trial of a novel bleeding sensor for patients with suspected UGIB. It is also the largest such trial.

The capsule (PillSense, EnteraSense) is rapidly deployed, safe to use, and easy to interpret, study researchers say. In under 7 minutes, it correctly detected the presence of blood in 26 of 28 patients and its absence in 87 of 96 patients, as confirmed afterward by esophagogastroduodenoscopy (EGD).

“The use of the PillSense system will positively impact patient outcomes by providing early diagnosis, triaging, and directing care for UGIB,” said Karl Akiki, MD, study lead, who is in the division of gastroenterology and hepatology at the Mayo Clinic, Rochester, Minn. He presented the results at the annual United European Gastroenterology Week.

“Due to its ability to rapidly diagnose UGIB, it helps us, as doctors, expedite accurate clinical decision-making while also optimizing services to ensure the maximum number of patients obtain the best outcome,” he told this news organization.

“There are some pre-endoscopic assessment scores, like the Rockell or the Glasgow-Blatchford score, but they have limited clinical utility in predicting and confirming bleeding in suspected patients,” explained Dr. Akiki. He highlighted the need for a novel device that is rapid, accurate, and safe to use. He also pointed out that despite being the gold standard for diagnosis, EGD remains challenging in terms of time, personnel, and resources.

“The results of our study show the PillSense is a good diagnostic tool that will aid triage,” he said. He noted that PillSense and EGD supplement each other in patient care.

It’s not a device to replace the EGD itself,” he explained, but given the results from the capsule, it will act “as a kind of a bridge that helps us to determine which patients should undergo EGD.”

Optical sensing technology

The researchers aimed to assess the safety and efficacy of the PillSense system for patients with suspected UGIB. They enrolled 131 patients (mean age, 62 years), 60% of whom were men. The most common presenting symptoms for UGIB were melena (52%), anemia (41%), and hematemesis (15%). Five participants withdrew consent before capsule ingestion, and for two patients, primary endpoint data were missing. This left an intent-to-treat population of 124 patients; 110 completed the study.

Patients were asked to swallow the capsule and to lay on their left side. The PillSense is based on optical sensing technology that uses an optical signature of blood in the gut. The device differentiates blood from any other liquids that may be present. After 5-7 minutes, the device gathers and transmits data wirelessly to an external, handheld receiver that processes binary data and indicates either “blood detected” or “no blood detected” in the upper GI tract, explained Dr. Akiki.

Following the capsule reading, patients underwent EGD within 4 hours. This enabled the researchers to compare data between the two modalities. Follow-up visits were conducted on days 7, 14, and 21 to ensure the capsule had passed from the body. Endoscopists were blinded to the capsule result when reading the EGD.

Primary endpoints were the sensitivity and specificity of the device; secondary endpoints were positive predictive value, negative predictive value, successful passage of the capsule, and safety.
 

Rapid and accurate

The researchers determined the efficiency of the capsule in correctly detecting a UGIB. The capsule’s positive and negative predictive values were 74.3% and 97.8%, respectively.

“We achieved a sensitivity of around 93% (92.9%; P = 0.024) with the PillSense capsule and a specificity of 91% (90.6%; P < .001]), which were pretty good. We also detected a range from minimal bleeding – so, speckles of blood to large amounts of active bleeding covering the entire stomach,” reported Dr. Akiki.

There were no differences in terms of patient demographics, laboratory results, or concomitant use of medications. PillSense recording time was a mean of 6.71 minutes, the time from capsule ingestion to EGD was a mean of 55 minutes, and the time to capsule passage through the GI tract was 3.6 days. Most bleeds were found to be in the stomach (18/30; 60%), followed by the duodenum (5/30; 16.6%).

Various capsules for detecting UGIB are under development or are already available, but unlike some of the others, “[the PillSense] is not a video capsule,” said Dr. Akiki. “It does not take pictures at all but is more of a photo sensor capsule that measures the absorption of wavelengths.”

This explains why the PillSense was so rapid – results were available in around 7 minutes and did not require an interpretation by a physician, he explained. “Trained non-physician personnel can use it, and this is where it differs from other devices, such as video capsules that require someone highly trained to interpret the output. It’s an easy procedure and process to follow.”

The PillSense has value in improving workflow, Dr. Akiki said. “If we had someone come in during the night with a suspected upper GI bleed, we could give them the capsule, determine if they need an EGD or not, and potentially postpone it to a time – say, the morning, when more resources are available – freeing up the night for emergency cases. It helps me, as a physician, to determine which patients to send to EGD immediately or which to wait.”

He added that more studies are needed in the postmarketing phase to understand optimal use of the device and to define the exact clinical pathway for optimal implementation.

The device was approved by the U.S. Food and Drug Administration in February. Dr. Akiki noted that there were no adverse events or deaths related to the capsule.

Co-moderator, Philip Chiu, MD, a gastroenterologist from the Chinese University of Hong Kong, said, “It’s an interesting study, because sometimes we can’t differentiate by clinical symptoms as to whether this is a problem of continuous bleeding or something else. The capsule might help us in our decision-making in this respect and help determine whether we should scope the patients or just manage conservatively.”

Dr. Akiki and Dr. Chiu have disclosed no relevant financial relationships.

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

COPENHAGEN – A real-time, blood-sensing capsule that detects upper gastrointestinal bleeding (UGIB) is safe and effective for patients before undergoing upper endoscopy, according to results from the first U.S.-based open-label, single-arm comparative clinical trial of a novel bleeding sensor for patients with suspected UGIB. It is also the largest such trial.

The capsule (PillSense, EnteraSense) is rapidly deployed, safe to use, and easy to interpret, study researchers say. In under 7 minutes, it correctly detected the presence of blood in 26 of 28 patients and its absence in 87 of 96 patients, as confirmed afterward by esophagogastroduodenoscopy (EGD).

“The use of the PillSense system will positively impact patient outcomes by providing early diagnosis, triaging, and directing care for UGIB,” said Karl Akiki, MD, study lead, who is in the division of gastroenterology and hepatology at the Mayo Clinic, Rochester, Minn. He presented the results at the annual United European Gastroenterology Week.

“Due to its ability to rapidly diagnose UGIB, it helps us, as doctors, expedite accurate clinical decision-making while also optimizing services to ensure the maximum number of patients obtain the best outcome,” he told this news organization.

“There are some pre-endoscopic assessment scores, like the Rockell or the Glasgow-Blatchford score, but they have limited clinical utility in predicting and confirming bleeding in suspected patients,” explained Dr. Akiki. He highlighted the need for a novel device that is rapid, accurate, and safe to use. He also pointed out that despite being the gold standard for diagnosis, EGD remains challenging in terms of time, personnel, and resources.

“The results of our study show the PillSense is a good diagnostic tool that will aid triage,” he said. He noted that PillSense and EGD supplement each other in patient care.

It’s not a device to replace the EGD itself,” he explained, but given the results from the capsule, it will act “as a kind of a bridge that helps us to determine which patients should undergo EGD.”

Optical sensing technology

The researchers aimed to assess the safety and efficacy of the PillSense system for patients with suspected UGIB. They enrolled 131 patients (mean age, 62 years), 60% of whom were men. The most common presenting symptoms for UGIB were melena (52%), anemia (41%), and hematemesis (15%). Five participants withdrew consent before capsule ingestion, and for two patients, primary endpoint data were missing. This left an intent-to-treat population of 124 patients; 110 completed the study.

Patients were asked to swallow the capsule and to lay on their left side. The PillSense is based on optical sensing technology that uses an optical signature of blood in the gut. The device differentiates blood from any other liquids that may be present. After 5-7 minutes, the device gathers and transmits data wirelessly to an external, handheld receiver that processes binary data and indicates either “blood detected” or “no blood detected” in the upper GI tract, explained Dr. Akiki.

Following the capsule reading, patients underwent EGD within 4 hours. This enabled the researchers to compare data between the two modalities. Follow-up visits were conducted on days 7, 14, and 21 to ensure the capsule had passed from the body. Endoscopists were blinded to the capsule result when reading the EGD.

Primary endpoints were the sensitivity and specificity of the device; secondary endpoints were positive predictive value, negative predictive value, successful passage of the capsule, and safety.
 

Rapid and accurate

The researchers determined the efficiency of the capsule in correctly detecting a UGIB. The capsule’s positive and negative predictive values were 74.3% and 97.8%, respectively.

“We achieved a sensitivity of around 93% (92.9%; P = 0.024) with the PillSense capsule and a specificity of 91% (90.6%; P < .001]), which were pretty good. We also detected a range from minimal bleeding – so, speckles of blood to large amounts of active bleeding covering the entire stomach,” reported Dr. Akiki.

There were no differences in terms of patient demographics, laboratory results, or concomitant use of medications. PillSense recording time was a mean of 6.71 minutes, the time from capsule ingestion to EGD was a mean of 55 minutes, and the time to capsule passage through the GI tract was 3.6 days. Most bleeds were found to be in the stomach (18/30; 60%), followed by the duodenum (5/30; 16.6%).

Various capsules for detecting UGIB are under development or are already available, but unlike some of the others, “[the PillSense] is not a video capsule,” said Dr. Akiki. “It does not take pictures at all but is more of a photo sensor capsule that measures the absorption of wavelengths.”

This explains why the PillSense was so rapid – results were available in around 7 minutes and did not require an interpretation by a physician, he explained. “Trained non-physician personnel can use it, and this is where it differs from other devices, such as video capsules that require someone highly trained to interpret the output. It’s an easy procedure and process to follow.”

The PillSense has value in improving workflow, Dr. Akiki said. “If we had someone come in during the night with a suspected upper GI bleed, we could give them the capsule, determine if they need an EGD or not, and potentially postpone it to a time – say, the morning, when more resources are available – freeing up the night for emergency cases. It helps me, as a physician, to determine which patients to send to EGD immediately or which to wait.”

He added that more studies are needed in the postmarketing phase to understand optimal use of the device and to define the exact clinical pathway for optimal implementation.

The device was approved by the U.S. Food and Drug Administration in February. Dr. Akiki noted that there were no adverse events or deaths related to the capsule.

Co-moderator, Philip Chiu, MD, a gastroenterologist from the Chinese University of Hong Kong, said, “It’s an interesting study, because sometimes we can’t differentiate by clinical symptoms as to whether this is a problem of continuous bleeding or something else. The capsule might help us in our decision-making in this respect and help determine whether we should scope the patients or just manage conservatively.”

Dr. Akiki and Dr. Chiu have disclosed no relevant financial relationships.

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

AT UEG WEEK 2023

COPENHAGEN – Risankizumab shows noninferiority for clinical remission at week 24, and superiority of endoscopic remission at week 48 when compared with ustekinumab in patients with moderately to severely active Crohn’s disease (CD) who have failed one or more anti–tumor necrosis factor (anti-TNF) therapies, according to the results of the phase 3 SEQUENCE trial.

Secondary endpoints – presented for the first time at the United European Gastroenterology Week 2023 – also showed superiority of risankizumab (Skyrizi, AbbVie), an interleulin-23 inhibitor, over ustekinumab (Stelara), an IL-12 and IL-23 inhibitor, for clinical remission at week 48 (60.8% vs. 40.8%) and a statistically significant endoscopic response also favoring risankizumab at weeks 24 and 48.

“With endoscopic remission we see that with a single agent we have doubled the endoscopic remission rate by moving from 16% to 31% with risankizumab [at week 48],” said Laurent Peyrin-Biroulet, MD, PhD, a gastroenterologist specializing in inflammatory bowel disease at Nancy University Hospital, France. “Superiority for sure was met.”

“This sort of thing happens once in your career,” noted Dr. Peyrin-Biroulet, who presented the results of the study at the meeting. “It’s totally amazing that everything you see here was in favor of risankizumab.

“Already we see the efficacy signal in the proportion of premature discontinuations at 2% vs. 13% due to lack of efficacy [in risankizumab and ustekinumab, respectively],” he said. “This is due to drug failure.”

Risankizumab is an IL-23 inhibitor that selectively blocks the cytokine IL-23, thought to be linked to a number of chronic immune-mediated diseases, by binding to its p19 subunit. It is the first IL-23 inhibitor to receive approval from the U.S. Food and Drug Administration in June 2022 for moderately to severely active CD based on data from the ADVANCE, MOTIVATE, and FORTIFY trials.

Risankizumab and ustekinumab head-to-head

The phase 3, open-label, multicenter, randomized, clinical trial evaluated risankizumab vs. ustekinumab through week 48 in patients with moderately to severely active CD.

Participants were required to have a CD Activity Index (CDAI) score of 220 to 450 at baseline, a Simple Endoscopic Score for Crohn’s Disease (SES-CD) of 6 or more for ileocolonic or colonic disease (and of 4 or more for isolated ileal disease), excluding the presence of a narrowing component, plus an average daily stool frequency of four or more and/or average daily abdominal pain score of 2 or more. They were also required to have previously failed one or more anti-TNF therapies.

Randomization was stratified by the number of anti-TNF therapies failed (one or more than one), and steroid use at baseline; steroids were then tapered from week 2. Two primary endpoints comprised clinical remission at week 24 (defined as CDAI < 150, noninferiority margin within 10% of risankizumab vs ustekinumab in 50% of participants), and also endoscopic remission (SES-CD of 4 or less, and at least a 2-point reduction vs. baseline and no subscore greater than 1 in any individual component) at week 48 demonstrating superiority of risankizumab vs ustekinumab.

Secondary endpoints included clinical remission at week 48, endoscopic response at weeks 48 and 24, steroid-free endoscopic remission at week 48, and steroid-free clinical remission at week 48 (all tested for superiority of risankizumab vs ustekinumab).

Intravenous risankizumab at 600 mg was given at weeks 0, 4 , and 8 followed by subcutaneous risankizumab at a 360-mg maintenance dose every 8 weeks through week 48 (n = 255). Participants who completed the week-48 visit continued on subcutaneous risankizumab for up to an additional 220 weeks. Ustekinumab was given as a weight-based, intravenous induction dose at week 0 followed by a 90-mg subcutaneous dose every 8 weeks, starting at week 8 through week 48 (n = 265). Participants received open-label drug administration but efficacy assessment was blinded.

Superiority of risankizumab

Both primary endpoints were met. For clinical remission at week 24, in half of the patients enrolled, rates were 58.6% (75/128) for risankizumab and 39.5% (54/137) for ustekinumab, for a difference of 18.4% [95% confidence interval, 6.6-30.3], meaning that noninferiority was met within the predefined margin of 10%. The second primary endpoint of endoscopic remission at week 48 showed rates of 31.8% (81/255) for risankizumab and 16.2% (43/265) for ustekinumab (P < .0001 for superiority).

Risankizumab was found to be superior to ustekinumab for all secondary endpoints (all with P < .0001). Steroid-free endoscopic remission at week 48 showed a 16% difference, and steroid-free clinical remission at week 48 showed a 20% difference – both in favor of risankizumab.

In addition, more participants on risankizumab completed the study (89.4%) than those on ustekinumab (74.0%), Dr. Peyrin-Biroulet reported.

Adverse event rates (events per 100 person-years) were comparable between the two drugs at 341.2 for risankizumab and 282.7 for ustekinumab. For risankizumab, no new safety risks were observed, and those recorded were consistent with the known safety profile. Serious adverse events occurred in 10% of risankizumab-treated patients, and 17% of ustekinumab-treated patients.

“We know the safety of IL-23 inhibitors is good,” said Dr. Peyrin-Biroulet. “If we look at all adverse events there was no difference across arms, and in terms of serious adverse events, it was in favor of risankizumab because a CD flare is considered a serious adverse event.”

Session comoderator, Alessandro Armuzzi, MD, head of the Inflammatory Bowel Disease Center at the IRCCS Humanitas Research Hospital in Milan, commented on the findings. “The results look in favor of risankizumab – all the endpoints were met, not only the co-endpoints but also the secondary endpoints too,” he said.

These results, showing a preference for risankizumab, have value in helping clinicians with the sequence of therapies when patients with Crohn’s disease have failed one or more TNF inhibitor, said Dr. Armuzzi.

No funding for this study was disclosed. Dr. Peyrin-Biroulet has disclosed receiving fees from Galapagos, AbbVie, Janssen, Genentech, Alimentiv, Ferring, Tillots, Celltrion, Takeda, Pfizer, Index, Sandoz, Celgene, Biogen, SamsungBioepis, Inotrem, Allergan, MSD, Roche, Arena, Gilead, Amgen, BMS, Vifor, Norgine, Mylan, Lilly, Fresenius Kabi, OSEImmunotherapeutics, Enthera, Theravance, Pandion, Gossamer, Viatris, ThermoFisher, ONOPharma, Mopac, Cytoki, Morphic, Prometheus, and Applied MolecularTransport. Dr. Armuzzi disclosed consulting/advisory board fees from AbbVie, Amgen, Arena, Biogen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Celltrion, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Nestlé, Pfizer, Protagonist Therapeutics, Roche, Samsung Bioepis, Sandoz, Takeda, and Tillots Pharma; speaker’s fees from AbbVie, Amgen, Arena, Biogen, Bristol-Myers Squibb, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Novartis, Pfizer, Roche, Samsung Bioepis, Sandoz, and Takeda; and research grants from MSD, Takeda, Pfizer, and Biogen.

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

AT UEG WEEK 2023

COPENHAGEN – Risankizumab shows noninferiority for clinical remission at week 24, and superiority of endoscopic remission at week 48 when compared with ustekinumab in patients with moderately to severely active Crohn’s disease (CD) who have failed one or more anti–tumor necrosis factor (anti-TNF) therapies, according to the results of the phase 3 SEQUENCE trial.

Secondary endpoints – presented for the first time at the United European Gastroenterology Week 2023 – also showed superiority of risankizumab (Skyrizi, AbbVie), an interleulin-23 inhibitor, over ustekinumab (Stelara), an IL-12 and IL-23 inhibitor, for clinical remission at week 48 (60.8% vs. 40.8%) and a statistically significant endoscopic response also favoring risankizumab at weeks 24 and 48.

“With endoscopic remission we see that with a single agent we have doubled the endoscopic remission rate by moving from 16% to 31% with risankizumab [at week 48],” said Laurent Peyrin-Biroulet, MD, PhD, a gastroenterologist specializing in inflammatory bowel disease at Nancy University Hospital, France. “Superiority for sure was met.”

“This sort of thing happens once in your career,” noted Dr. Peyrin-Biroulet, who presented the results of the study at the meeting. “It’s totally amazing that everything you see here was in favor of risankizumab.

“Already we see the efficacy signal in the proportion of premature discontinuations at 2% vs. 13% due to lack of efficacy [in risankizumab and ustekinumab, respectively],” he said. “This is due to drug failure.”

Risankizumab is an IL-23 inhibitor that selectively blocks the cytokine IL-23, thought to be linked to a number of chronic immune-mediated diseases, by binding to its p19 subunit. It is the first IL-23 inhibitor to receive approval from the U.S. Food and Drug Administration in June 2022 for moderately to severely active CD based on data from the ADVANCE, MOTIVATE, and FORTIFY trials.

Risankizumab and ustekinumab head-to-head

The phase 3, open-label, multicenter, randomized, clinical trial evaluated risankizumab vs. ustekinumab through week 48 in patients with moderately to severely active CD.

Participants were required to have a CD Activity Index (CDAI) score of 220 to 450 at baseline, a Simple Endoscopic Score for Crohn’s Disease (SES-CD) of 6 or more for ileocolonic or colonic disease (and of 4 or more for isolated ileal disease), excluding the presence of a narrowing component, plus an average daily stool frequency of four or more and/or average daily abdominal pain score of 2 or more. They were also required to have previously failed one or more anti-TNF therapies.

Randomization was stratified by the number of anti-TNF therapies failed (one or more than one), and steroid use at baseline; steroids were then tapered from week 2. Two primary endpoints comprised clinical remission at week 24 (defined as CDAI < 150, noninferiority margin within 10% of risankizumab vs ustekinumab in 50% of participants), and also endoscopic remission (SES-CD of 4 or less, and at least a 2-point reduction vs. baseline and no subscore greater than 1 in any individual component) at week 48 demonstrating superiority of risankizumab vs ustekinumab.

Secondary endpoints included clinical remission at week 48, endoscopic response at weeks 48 and 24, steroid-free endoscopic remission at week 48, and steroid-free clinical remission at week 48 (all tested for superiority of risankizumab vs ustekinumab).

Intravenous risankizumab at 600 mg was given at weeks 0, 4 , and 8 followed by subcutaneous risankizumab at a 360-mg maintenance dose every 8 weeks through week 48 (n = 255). Participants who completed the week-48 visit continued on subcutaneous risankizumab for up to an additional 220 weeks. Ustekinumab was given as a weight-based, intravenous induction dose at week 0 followed by a 90-mg subcutaneous dose every 8 weeks, starting at week 8 through week 48 (n = 265). Participants received open-label drug administration but efficacy assessment was blinded.

Superiority of risankizumab

Both primary endpoints were met. For clinical remission at week 24, in half of the patients enrolled, rates were 58.6% (75/128) for risankizumab and 39.5% (54/137) for ustekinumab, for a difference of 18.4% [95% confidence interval, 6.6-30.3], meaning that noninferiority was met within the predefined margin of 10%. The second primary endpoint of endoscopic remission at week 48 showed rates of 31.8% (81/255) for risankizumab and 16.2% (43/265) for ustekinumab (P < .0001 for superiority).

Risankizumab was found to be superior to ustekinumab for all secondary endpoints (all with P < .0001). Steroid-free endoscopic remission at week 48 showed a 16% difference, and steroid-free clinical remission at week 48 showed a 20% difference – both in favor of risankizumab.

In addition, more participants on risankizumab completed the study (89.4%) than those on ustekinumab (74.0%), Dr. Peyrin-Biroulet reported.

Adverse event rates (events per 100 person-years) were comparable between the two drugs at 341.2 for risankizumab and 282.7 for ustekinumab. For risankizumab, no new safety risks were observed, and those recorded were consistent with the known safety profile. Serious adverse events occurred in 10% of risankizumab-treated patients, and 17% of ustekinumab-treated patients.

“We know the safety of IL-23 inhibitors is good,” said Dr. Peyrin-Biroulet. “If we look at all adverse events there was no difference across arms, and in terms of serious adverse events, it was in favor of risankizumab because a CD flare is considered a serious adverse event.”

Session comoderator, Alessandro Armuzzi, MD, head of the Inflammatory Bowel Disease Center at the IRCCS Humanitas Research Hospital in Milan, commented on the findings. “The results look in favor of risankizumab – all the endpoints were met, not only the co-endpoints but also the secondary endpoints too,” he said.

These results, showing a preference for risankizumab, have value in helping clinicians with the sequence of therapies when patients with Crohn’s disease have failed one or more TNF inhibitor, said Dr. Armuzzi.

No funding for this study was disclosed. Dr. Peyrin-Biroulet has disclosed receiving fees from Galapagos, AbbVie, Janssen, Genentech, Alimentiv, Ferring, Tillots, Celltrion, Takeda, Pfizer, Index, Sandoz, Celgene, Biogen, SamsungBioepis, Inotrem, Allergan, MSD, Roche, Arena, Gilead, Amgen, BMS, Vifor, Norgine, Mylan, Lilly, Fresenius Kabi, OSEImmunotherapeutics, Enthera, Theravance, Pandion, Gossamer, Viatris, ThermoFisher, ONOPharma, Mopac, Cytoki, Morphic, Prometheus, and Applied MolecularTransport. Dr. Armuzzi disclosed consulting/advisory board fees from AbbVie, Amgen, Arena, Biogen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Celltrion, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Nestlé, Pfizer, Protagonist Therapeutics, Roche, Samsung Bioepis, Sandoz, Takeda, and Tillots Pharma; speaker’s fees from AbbVie, Amgen, Arena, Biogen, Bristol-Myers Squibb, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Novartis, Pfizer, Roche, Samsung Bioepis, Sandoz, and Takeda; and research grants from MSD, Takeda, Pfizer, and Biogen.

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

AT UEG WEEK 2023

COPENHAGEN – Risankizumab shows noninferiority for clinical remission at week 24, and superiority of endoscopic remission at week 48 when compared with ustekinumab in patients with moderately to severely active Crohn’s disease (CD) who have failed one or more anti–tumor necrosis factor (anti-TNF) therapies, according to the results of the phase 3 SEQUENCE trial.

Secondary endpoints – presented for the first time at the United European Gastroenterology Week 2023 – also showed superiority of risankizumab (Skyrizi, AbbVie), an interleulin-23 inhibitor, over ustekinumab (Stelara), an IL-12 and IL-23 inhibitor, for clinical remission at week 48 (60.8% vs. 40.8%) and a statistically significant endoscopic response also favoring risankizumab at weeks 24 and 48.

“With endoscopic remission we see that with a single agent we have doubled the endoscopic remission rate by moving from 16% to 31% with risankizumab [at week 48],” said Laurent Peyrin-Biroulet, MD, PhD, a gastroenterologist specializing in inflammatory bowel disease at Nancy University Hospital, France. “Superiority for sure was met.”

“This sort of thing happens once in your career,” noted Dr. Peyrin-Biroulet, who presented the results of the study at the meeting. “It’s totally amazing that everything you see here was in favor of risankizumab.

“Already we see the efficacy signal in the proportion of premature discontinuations at 2% vs. 13% due to lack of efficacy [in risankizumab and ustekinumab, respectively],” he said. “This is due to drug failure.”

Risankizumab is an IL-23 inhibitor that selectively blocks the cytokine IL-23, thought to be linked to a number of chronic immune-mediated diseases, by binding to its p19 subunit. It is the first IL-23 inhibitor to receive approval from the U.S. Food and Drug Administration in June 2022 for moderately to severely active CD based on data from the ADVANCE, MOTIVATE, and FORTIFY trials.

Risankizumab and ustekinumab head-to-head

The phase 3, open-label, multicenter, randomized, clinical trial evaluated risankizumab vs. ustekinumab through week 48 in patients with moderately to severely active CD.

Participants were required to have a CD Activity Index (CDAI) score of 220 to 450 at baseline, a Simple Endoscopic Score for Crohn’s Disease (SES-CD) of 6 or more for ileocolonic or colonic disease (and of 4 or more for isolated ileal disease), excluding the presence of a narrowing component, plus an average daily stool frequency of four or more and/or average daily abdominal pain score of 2 or more. They were also required to have previously failed one or more anti-TNF therapies.

Randomization was stratified by the number of anti-TNF therapies failed (one or more than one), and steroid use at baseline; steroids were then tapered from week 2. Two primary endpoints comprised clinical remission at week 24 (defined as CDAI < 150, noninferiority margin within 10% of risankizumab vs ustekinumab in 50% of participants), and also endoscopic remission (SES-CD of 4 or less, and at least a 2-point reduction vs. baseline and no subscore greater than 1 in any individual component) at week 48 demonstrating superiority of risankizumab vs ustekinumab.

Secondary endpoints included clinical remission at week 48, endoscopic response at weeks 48 and 24, steroid-free endoscopic remission at week 48, and steroid-free clinical remission at week 48 (all tested for superiority of risankizumab vs ustekinumab).

Intravenous risankizumab at 600 mg was given at weeks 0, 4 , and 8 followed by subcutaneous risankizumab at a 360-mg maintenance dose every 8 weeks through week 48 (n = 255). Participants who completed the week-48 visit continued on subcutaneous risankizumab for up to an additional 220 weeks. Ustekinumab was given as a weight-based, intravenous induction dose at week 0 followed by a 90-mg subcutaneous dose every 8 weeks, starting at week 8 through week 48 (n = 265). Participants received open-label drug administration but efficacy assessment was blinded.

Superiority of risankizumab

Both primary endpoints were met. For clinical remission at week 24, in half of the patients enrolled, rates were 58.6% (75/128) for risankizumab and 39.5% (54/137) for ustekinumab, for a difference of 18.4% [95% confidence interval, 6.6-30.3], meaning that noninferiority was met within the predefined margin of 10%. The second primary endpoint of endoscopic remission at week 48 showed rates of 31.8% (81/255) for risankizumab and 16.2% (43/265) for ustekinumab (P < .0001 for superiority).

Risankizumab was found to be superior to ustekinumab for all secondary endpoints (all with P < .0001). Steroid-free endoscopic remission at week 48 showed a 16% difference, and steroid-free clinical remission at week 48 showed a 20% difference – both in favor of risankizumab.

In addition, more participants on risankizumab completed the study (89.4%) than those on ustekinumab (74.0%), Dr. Peyrin-Biroulet reported.

Adverse event rates (events per 100 person-years) were comparable between the two drugs at 341.2 for risankizumab and 282.7 for ustekinumab. For risankizumab, no new safety risks were observed, and those recorded were consistent with the known safety profile. Serious adverse events occurred in 10% of risankizumab-treated patients, and 17% of ustekinumab-treated patients.

“We know the safety of IL-23 inhibitors is good,” said Dr. Peyrin-Biroulet. “If we look at all adverse events there was no difference across arms, and in terms of serious adverse events, it was in favor of risankizumab because a CD flare is considered a serious adverse event.”

Session comoderator, Alessandro Armuzzi, MD, head of the Inflammatory Bowel Disease Center at the IRCCS Humanitas Research Hospital in Milan, commented on the findings. “The results look in favor of risankizumab – all the endpoints were met, not only the co-endpoints but also the secondary endpoints too,” he said.

These results, showing a preference for risankizumab, have value in helping clinicians with the sequence of therapies when patients with Crohn’s disease have failed one or more TNF inhibitor, said Dr. Armuzzi.

No funding for this study was disclosed. Dr. Peyrin-Biroulet has disclosed receiving fees from Galapagos, AbbVie, Janssen, Genentech, Alimentiv, Ferring, Tillots, Celltrion, Takeda, Pfizer, Index, Sandoz, Celgene, Biogen, SamsungBioepis, Inotrem, Allergan, MSD, Roche, Arena, Gilead, Amgen, BMS, Vifor, Norgine, Mylan, Lilly, Fresenius Kabi, OSEImmunotherapeutics, Enthera, Theravance, Pandion, Gossamer, Viatris, ThermoFisher, ONOPharma, Mopac, Cytoki, Morphic, Prometheus, and Applied MolecularTransport. Dr. Armuzzi disclosed consulting/advisory board fees from AbbVie, Amgen, Arena, Biogen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Celltrion, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Nestlé, Pfizer, Protagonist Therapeutics, Roche, Samsung Bioepis, Sandoz, Takeda, and Tillots Pharma; speaker’s fees from AbbVie, Amgen, Arena, Biogen, Bristol-Myers Squibb, Eli-Lilly, Ferring, Galapagos, Gilead, Janssen, Lionhealth, MSD, Novartis, Pfizer, Roche, Samsung Bioepis, Sandoz, and Takeda; and research grants from MSD, Takeda, Pfizer, and Biogen.

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

Artificial intelligence (AI) models are typically a year out of date and have this “charming problem of hallucinating made-up data and saying it with all the certainty of an attending on rounds,” Isaac Kohane, MD, PhD, Harvard Medical School, Boston, told a packed audience at plenary at an annual scientific meeting on infectious diseases.

Dr. Kohane, chair of the department of biomedical informatics, says the future intersection between AI and health care is “muddy.”

Echoing questions about the accuracy of new AI tools, researchers at the meeting presented the results of their new test of ChatGPT.

The AI chatbot is designed for language processing – not scientific accuracy – and does not guarantee that responses to medical queries are fully factual.

To test the accuracy of ChatGPT’s version 3.5, the researchers asked it if there are any boxed warnings on the U.S. Food and Drug Administration’s label for common antibiotics, and if so, what they are.

ChatGPT provided correct answers about FDA boxed warnings for only 12 of the 41 antibiotics queried – a matching rate of just 29%.

For the other 29 antibiotics, ChatGPT either “incorrectly reported that there was an FDA boxed warning when there was not, or inaccurately or incorrectly reported the boxed warning,” Rebecca Linfield, MD, infectious diseases fellow, Stanford (Calif.) University, said in an interview.
 

Uncritical AI use risky

Nine of the 41 antibiotics included in the query have boxed warnings. And ChatGPT correctly identified all nine, but only three were the matching adverse event (33%). For the 32 antibiotics without an FDA boxed warning, ChatGPT correctly reported that 28% (9 of 32) do not have a boxed warning.

For example, ChatGPT stated that the antibiotic fidaxomicin has a boxed warning for increased risk for Clostridioides difficile, “but it is the first-line antibiotic used to treat C. difficile,” Dr. Linfield pointed out.

ChatGPT also reported that cefepime increased the risk for death in those with pneumonia and fabricated a study supporting that assertion. “However, cefepime is a first-line drug for those with hospital-acquired pneumonia,” Dr. Linfield explained.

“I can imagine a worried family member finding this through ChatGPT, and needing to have extensive reassurances from the patient’s physicians about why this antibiotic was chosen,” she said.

ChatGPT also incorrectly stated that aztreonam has a boxed warning for increased mortality.

“The risk is that both physicians and the public uncritically use ChatGPT as an easily accessible, readable source of clinically validated information, when these large language models are meant to generate fluid text, and not necessarily accurate information,” Dr. Linfield told this news organization.

Dr. Linfield said that the next step is to compare the ChatGPT 3.5 used in this analysis with ChatGPT 4, as well as with Google’s Med-PaLM 2 after it is released to the public.
 

Advancing fast

At plenary, Dr. Kohane pointed out that AI is a quick learner and improvements in tools are coming fast.

As an example, just 3 years ago, the best AI tool could score about as well as the worst student taking the medical boards, he told the audience. “Three years later, the leading large language models are scoring better than 90% of all the candidates. What’s it going to be doing next year?” he asked.

“I don’t know,” Dr. Kohane said, “but it will be better than this year.” AI will “transform health care.”

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

Artificial intelligence (AI) models are typically a year out of date and have this “charming problem of hallucinating made-up data and saying it with all the certainty of an attending on rounds,” Isaac Kohane, MD, PhD, Harvard Medical School, Boston, told a packed audience at plenary at an annual scientific meeting on infectious diseases.

Dr. Kohane, chair of the department of biomedical informatics, says the future intersection between AI and health care is “muddy.”

Echoing questions about the accuracy of new AI tools, researchers at the meeting presented the results of their new test of ChatGPT.

The AI chatbot is designed for language processing – not scientific accuracy – and does not guarantee that responses to medical queries are fully factual.

To test the accuracy of ChatGPT’s version 3.5, the researchers asked it if there are any boxed warnings on the U.S. Food and Drug Administration’s label for common antibiotics, and if so, what they are.

ChatGPT provided correct answers about FDA boxed warnings for only 12 of the 41 antibiotics queried – a matching rate of just 29%.

For the other 29 antibiotics, ChatGPT either “incorrectly reported that there was an FDA boxed warning when there was not, or inaccurately or incorrectly reported the boxed warning,” Rebecca Linfield, MD, infectious diseases fellow, Stanford (Calif.) University, said in an interview.
 

Uncritical AI use risky

Nine of the 41 antibiotics included in the query have boxed warnings. And ChatGPT correctly identified all nine, but only three were the matching adverse event (33%). For the 32 antibiotics without an FDA boxed warning, ChatGPT correctly reported that 28% (9 of 32) do not have a boxed warning.

For example, ChatGPT stated that the antibiotic fidaxomicin has a boxed warning for increased risk for Clostridioides difficile, “but it is the first-line antibiotic used to treat C. difficile,” Dr. Linfield pointed out.

ChatGPT also reported that cefepime increased the risk for death in those with pneumonia and fabricated a study supporting that assertion. “However, cefepime is a first-line drug for those with hospital-acquired pneumonia,” Dr. Linfield explained.

“I can imagine a worried family member finding this through ChatGPT, and needing to have extensive reassurances from the patient’s physicians about why this antibiotic was chosen,” she said.

ChatGPT also incorrectly stated that aztreonam has a boxed warning for increased mortality.

“The risk is that both physicians and the public uncritically use ChatGPT as an easily accessible, readable source of clinically validated information, when these large language models are meant to generate fluid text, and not necessarily accurate information,” Dr. Linfield told this news organization.

Dr. Linfield said that the next step is to compare the ChatGPT 3.5 used in this analysis with ChatGPT 4, as well as with Google’s Med-PaLM 2 after it is released to the public.
 

Advancing fast

At plenary, Dr. Kohane pointed out that AI is a quick learner and improvements in tools are coming fast.

As an example, just 3 years ago, the best AI tool could score about as well as the worst student taking the medical boards, he told the audience. “Three years later, the leading large language models are scoring better than 90% of all the candidates. What’s it going to be doing next year?” he asked.

“I don’t know,” Dr. Kohane said, “but it will be better than this year.” AI will “transform health care.”

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

Artificial intelligence (AI) models are typically a year out of date and have this “charming problem of hallucinating made-up data and saying it with all the certainty of an attending on rounds,” Isaac Kohane, MD, PhD, Harvard Medical School, Boston, told a packed audience at plenary at an annual scientific meeting on infectious diseases.

Dr. Kohane, chair of the department of biomedical informatics, says the future intersection between AI and health care is “muddy.”

Echoing questions about the accuracy of new AI tools, researchers at the meeting presented the results of their new test of ChatGPT.

The AI chatbot is designed for language processing – not scientific accuracy – and does not guarantee that responses to medical queries are fully factual.

To test the accuracy of ChatGPT’s version 3.5, the researchers asked it if there are any boxed warnings on the U.S. Food and Drug Administration’s label for common antibiotics, and if so, what they are.

ChatGPT provided correct answers about FDA boxed warnings for only 12 of the 41 antibiotics queried – a matching rate of just 29%.

For the other 29 antibiotics, ChatGPT either “incorrectly reported that there was an FDA boxed warning when there was not, or inaccurately or incorrectly reported the boxed warning,” Rebecca Linfield, MD, infectious diseases fellow, Stanford (Calif.) University, said in an interview.
 

Uncritical AI use risky

Nine of the 41 antibiotics included in the query have boxed warnings. And ChatGPT correctly identified all nine, but only three were the matching adverse event (33%). For the 32 antibiotics without an FDA boxed warning, ChatGPT correctly reported that 28% (9 of 32) do not have a boxed warning.

For example, ChatGPT stated that the antibiotic fidaxomicin has a boxed warning for increased risk for Clostridioides difficile, “but it is the first-line antibiotic used to treat C. difficile,” Dr. Linfield pointed out.

ChatGPT also reported that cefepime increased the risk for death in those with pneumonia and fabricated a study supporting that assertion. “However, cefepime is a first-line drug for those with hospital-acquired pneumonia,” Dr. Linfield explained.

“I can imagine a worried family member finding this through ChatGPT, and needing to have extensive reassurances from the patient’s physicians about why this antibiotic was chosen,” she said.

ChatGPT also incorrectly stated that aztreonam has a boxed warning for increased mortality.

“The risk is that both physicians and the public uncritically use ChatGPT as an easily accessible, readable source of clinically validated information, when these large language models are meant to generate fluid text, and not necessarily accurate information,” Dr. Linfield told this news organization.

Dr. Linfield said that the next step is to compare the ChatGPT 3.5 used in this analysis with ChatGPT 4, as well as with Google’s Med-PaLM 2 after it is released to the public.
 

Advancing fast

At plenary, Dr. Kohane pointed out that AI is a quick learner and improvements in tools are coming fast.

As an example, just 3 years ago, the best AI tool could score about as well as the worst student taking the medical boards, he told the audience. “Three years later, the leading large language models are scoring better than 90% of all the candidates. What’s it going to be doing next year?” he asked.

“I don’t know,” Dr. Kohane said, “but it will be better than this year.” AI will “transform health care.”

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

WASHINGTON – A series of three higher-than-approved induction doses of the interleukin-23 inhibitor risankizumab in patients with psoriasis – and no further subsequent dosing – led to an “unprecedented” level of complete skin clearance at week 52 in a small study investigating whether high-dose IL-23 inhibition can target resident memory T cells and thereby induce long-term remission, Andrew Blauvelt, MD, MBA, reported at the annual research symposium of the National Psoriasis Foundation.

Understanding and trying to target resident memory T (Trm) cells has become a hot topic in psoriasis research, with possible importance for psoriatic arthritis as well. The cells, which normally develop within tissues in a pathogen-specific manner and persist after infections resolve, have been found in healed psoriatic skin and are believed to be responsible for recurrences of psoriasis at the same sites previously affected by the disease. Research suggests, moreover, that Trm cells are dependent on IL-23 for their survival, said Dr. Blauvelt, an investigator with the Oregon Medical Research Center, Portland.

Using an approach he has coined “knockout” therapy, 20 adult patients at the center were randomized 1:1 in double-blinded dosing to receive 300 mg or 600 mg of risankizumab (two and four times the standard initial doses, respectively) at 0, 4, and 16 weeks, and were seen every 4-6 weeks in a double-blinded follow-up period. Skin biopsies of lesional and nonlesional skin were collected at weeks 0 and 52 for RNA sequence analysis to evaluate changes in Trm cell number and effector function.

At week 28, almost all patients – 94% – achieved a Psoriasis Area and Severity Index 90 score, and 83% achieved PASI 100. At week 52, of the 18 still-enrolled patients, 69% had PASI 90 scores and 43% maintained PASI 100 scores. “We’re not curing psoriasis, but that is incredible to have 43% still clear 9 months after the last dose,” Dr. Blauvelt said.

The findings are interim results that pool the two doses of risankizumab (Skyrizi). An evaluation of maintenance of efficacy with the 300-mg versus 600-mg doses and results of the skin biopsies will be presented at the 2024 annual meeting of the American Academy of Dermatology, he said. Patients who have not had recurrences are being followed up to week 100 (unblinded).

Skin biopsy findings together with levels of clearance will “add insight as to whether high-dose IL-23 inhibition is associated with higher levels of complete clearance (i.e., PASI 100) over long periods of time, and whether remissions are associated with more profound knock-down of Trm cells,” Dr. Blauvelt wrote in an editorial on Trm cells in psoriasis published in the Journal of Psoriasis and Psoriatic Arthritis.

Risankizumab was approved by the Food and Drug Administration for moderate to severe plaque psoriasis in 2019, and for active psoriatic arthritis in 2022.
 

Impact of IL-23 inhibition

A 2021 study, Dr. Blauvelt noted in his presentation, showed that the IL-23 inhibitor guselkumab (Tremfya) reduced the number of Trm cells in healed psoriatic skin, while the IL-17A inhibitor secukinumab (Cosentyx) did not affect Trm cells.

Other researchers have concluded that local IL-23 is required for the proliferation and retention of Trm cells in the skin, he said, noting also that, as a class, IL-23 blockers “are associated with the longest disease-free intervals” in patients with psoriasis.

Research showing loss of Trm cells in biopsies of cleared skin is “incredibly important,” as is data showing that IL-23 may be “a critical survival factor” for Trm cells, said Christopher Ritchlin, MD, MPH, a rheumatologist and director of the clinical immunology research unit at the University of Rochester (N.Y.) Medical Center, who attended the NPF meeting and was asked to comment on the growing interest in Trm cells. He did not hear Dr. Blauvelt’s presentation but has followed Trm research in psoriasis.

Measuring Trm cells in synovial tissue of patients with psoriatic disease is, in fact, on the agenda of a new research team coled by Dr. Ritchlin that is part of the Autoimmune and Immune-Mediated Diseases Program of the Accelerating Medicine Partnership – a public-private partnership that aims to collect and analyze troves of biological data in order to illuminate the cellular and molecular interactions leading to autoimmune diseases.

“Resident memory T cells have been thought to be cells that are constrained to being resident in the tissue, and while that’s largely true, there’s more recent data showing that they actually can dedifferentiate and go back to the lymph node and then go back to the joint again,” Dr. Ritchlin noted in an interview. “So it’s a more complicated story,” but nonetheless targeting the cells is a concept worth exploring therapeutically.
 

Moving toward a cure?

The high induction doses of risankizumab in Dr. Blauvelt’s phase 2 “knockout” study were well tolerated through week 40, with safety profiles similar overall to those reported in previous studies of risankizumab and “no new safety signals,” Dr. Blauvelt said at the meeting.

(At baseline, patients had a mean disease duration of 21 years, a mean affected BSA of 21, and a mean PASI of 18.5. Seven had prior treatment with biologic medications, though not in the prior 4 months and not with risankizumab.)

In lieu of a cure, which is still possible in the next 10 years, he said, patients are eager for longer-term remission and the ability to break away from established regular dosing. After publication of a phase 1 study of risankizumab, in which a notable number of patients experienced complete skin clearance up to 1 year following a single high dose, “we started getting numerous calls in our [clinical trials] office from patients who said ‘I want to be on that drug that you give once a year,’ ” Dr. Blauvelt said. (The high dosing was not investigated any further in phase 2 and 3 research, he added.)

While the “knockout” study adopts a “hit hard” approach, it is also possible that a strategy to hit both hard and early after disease onset may induce long-term remission and/or cure of the disease. “I’m talking about using the best things first. There are hints that if we treat early, maybe we can keep [psoriasis] from becoming a chronic disease, keep it from ‘setting up shop’ if you will,” he said, noting that the “hit hard, hit early” concept is not unique to dermatology.

During a discussion period, Dr. Blauvelt said that in a future iteration of the “knockout” study, he would like to evaluate risankizumab in patients with disease duration under 12 months. It may also be valuable to look not only at Trm cells, but more broadly at other elements of the tissue architecture before and after treatment.

Among other strategies for achieving long-term remission and/or cure is the expansion of regulatory T cells, which work to “control inappropriate immune responses” and calm inflammation. Defects in the number and function of regulatory T cells are associated with psoriasis and other autoimmune diseases, and it appears in early research from other investigators that low-dose IL-2 can induce the expansion of regulatory T cells and improve psoriasis. “Keep tuned,” Dr. Blauvelt said.

Dr. Blauvelt disclosed ties with numerous pharmaceutical companies. Dr. Ritchlin had no disclosures.

WASHINGTON – A series of three higher-than-approved induction doses of the interleukin-23 inhibitor risankizumab in patients with psoriasis – and no further subsequent dosing – led to an “unprecedented” level of complete skin clearance at week 52 in a small study investigating whether high-dose IL-23 inhibition can target resident memory T cells and thereby induce long-term remission, Andrew Blauvelt, MD, MBA, reported at the annual research symposium of the National Psoriasis Foundation.

Understanding and trying to target resident memory T (Trm) cells has become a hot topic in psoriasis research, with possible importance for psoriatic arthritis as well. The cells, which normally develop within tissues in a pathogen-specific manner and persist after infections resolve, have been found in healed psoriatic skin and are believed to be responsible for recurrences of psoriasis at the same sites previously affected by the disease. Research suggests, moreover, that Trm cells are dependent on IL-23 for their survival, said Dr. Blauvelt, an investigator with the Oregon Medical Research Center, Portland.

Using an approach he has coined “knockout” therapy, 20 adult patients at the center were randomized 1:1 in double-blinded dosing to receive 300 mg or 600 mg of risankizumab (two and four times the standard initial doses, respectively) at 0, 4, and 16 weeks, and were seen every 4-6 weeks in a double-blinded follow-up period. Skin biopsies of lesional and nonlesional skin were collected at weeks 0 and 52 for RNA sequence analysis to evaluate changes in Trm cell number and effector function.

At week 28, almost all patients – 94% – achieved a Psoriasis Area and Severity Index 90 score, and 83% achieved PASI 100. At week 52, of the 18 still-enrolled patients, 69% had PASI 90 scores and 43% maintained PASI 100 scores. “We’re not curing psoriasis, but that is incredible to have 43% still clear 9 months after the last dose,” Dr. Blauvelt said.

The findings are interim results that pool the two doses of risankizumab (Skyrizi). An evaluation of maintenance of efficacy with the 300-mg versus 600-mg doses and results of the skin biopsies will be presented at the 2024 annual meeting of the American Academy of Dermatology, he said. Patients who have not had recurrences are being followed up to week 100 (unblinded).

Skin biopsy findings together with levels of clearance will “add insight as to whether high-dose IL-23 inhibition is associated with higher levels of complete clearance (i.e., PASI 100) over long periods of time, and whether remissions are associated with more profound knock-down of Trm cells,” Dr. Blauvelt wrote in an editorial on Trm cells in psoriasis published in the Journal of Psoriasis and Psoriatic Arthritis.

Risankizumab was approved by the Food and Drug Administration for moderate to severe plaque psoriasis in 2019, and for active psoriatic arthritis in 2022.
 

Impact of IL-23 inhibition

A 2021 study, Dr. Blauvelt noted in his presentation, showed that the IL-23 inhibitor guselkumab (Tremfya) reduced the number of Trm cells in healed psoriatic skin, while the IL-17A inhibitor secukinumab (Cosentyx) did not affect Trm cells.

Other researchers have concluded that local IL-23 is required for the proliferation and retention of Trm cells in the skin, he said, noting also that, as a class, IL-23 blockers “are associated with the longest disease-free intervals” in patients with psoriasis.

Research showing loss of Trm cells in biopsies of cleared skin is “incredibly important,” as is data showing that IL-23 may be “a critical survival factor” for Trm cells, said Christopher Ritchlin, MD, MPH, a rheumatologist and director of the clinical immunology research unit at the University of Rochester (N.Y.) Medical Center, who attended the NPF meeting and was asked to comment on the growing interest in Trm cells. He did not hear Dr. Blauvelt’s presentation but has followed Trm research in psoriasis.

Measuring Trm cells in synovial tissue of patients with psoriatic disease is, in fact, on the agenda of a new research team coled by Dr. Ritchlin that is part of the Autoimmune and Immune-Mediated Diseases Program of the Accelerating Medicine Partnership – a public-private partnership that aims to collect and analyze troves of biological data in order to illuminate the cellular and molecular interactions leading to autoimmune diseases.

“Resident memory T cells have been thought to be cells that are constrained to being resident in the tissue, and while that’s largely true, there’s more recent data showing that they actually can dedifferentiate and go back to the lymph node and then go back to the joint again,” Dr. Ritchlin noted in an interview. “So it’s a more complicated story,” but nonetheless targeting the cells is a concept worth exploring therapeutically.
 

Moving toward a cure?

The high induction doses of risankizumab in Dr. Blauvelt’s phase 2 “knockout” study were well tolerated through week 40, with safety profiles similar overall to those reported in previous studies of risankizumab and “no new safety signals,” Dr. Blauvelt said at the meeting.

(At baseline, patients had a mean disease duration of 21 years, a mean affected BSA of 21, and a mean PASI of 18.5. Seven had prior treatment with biologic medications, though not in the prior 4 months and not with risankizumab.)

In lieu of a cure, which is still possible in the next 10 years, he said, patients are eager for longer-term remission and the ability to break away from established regular dosing. After publication of a phase 1 study of risankizumab, in which a notable number of patients experienced complete skin clearance up to 1 year following a single high dose, “we started getting numerous calls in our [clinical trials] office from patients who said ‘I want to be on that drug that you give once a year,’ ” Dr. Blauvelt said. (The high dosing was not investigated any further in phase 2 and 3 research, he added.)

While the “knockout” study adopts a “hit hard” approach, it is also possible that a strategy to hit both hard and early after disease onset may induce long-term remission and/or cure of the disease. “I’m talking about using the best things first. There are hints that if we treat early, maybe we can keep [psoriasis] from becoming a chronic disease, keep it from ‘setting up shop’ if you will,” he said, noting that the “hit hard, hit early” concept is not unique to dermatology.

During a discussion period, Dr. Blauvelt said that in a future iteration of the “knockout” study, he would like to evaluate risankizumab in patients with disease duration under 12 months. It may also be valuable to look not only at Trm cells, but more broadly at other elements of the tissue architecture before and after treatment.

Among other strategies for achieving long-term remission and/or cure is the expansion of regulatory T cells, which work to “control inappropriate immune responses” and calm inflammation. Defects in the number and function of regulatory T cells are associated with psoriasis and other autoimmune diseases, and it appears in early research from other investigators that low-dose IL-2 can induce the expansion of regulatory T cells and improve psoriasis. “Keep tuned,” Dr. Blauvelt said.

Dr. Blauvelt disclosed ties with numerous pharmaceutical companies. Dr. Ritchlin had no disclosures.

WASHINGTON – A series of three higher-than-approved induction doses of the interleukin-23 inhibitor risankizumab in patients with psoriasis – and no further subsequent dosing – led to an “unprecedented” level of complete skin clearance at week 52 in a small study investigating whether high-dose IL-23 inhibition can target resident memory T cells and thereby induce long-term remission, Andrew Blauvelt, MD, MBA, reported at the annual research symposium of the National Psoriasis Foundation.

Understanding and trying to target resident memory T (Trm) cells has become a hot topic in psoriasis research, with possible importance for psoriatic arthritis as well. The cells, which normally develop within tissues in a pathogen-specific manner and persist after infections resolve, have been found in healed psoriatic skin and are believed to be responsible for recurrences of psoriasis at the same sites previously affected by the disease. Research suggests, moreover, that Trm cells are dependent on IL-23 for their survival, said Dr. Blauvelt, an investigator with the Oregon Medical Research Center, Portland.

Using an approach he has coined “knockout” therapy, 20 adult patients at the center were randomized 1:1 in double-blinded dosing to receive 300 mg or 600 mg of risankizumab (two and four times the standard initial doses, respectively) at 0, 4, and 16 weeks, and were seen every 4-6 weeks in a double-blinded follow-up period. Skin biopsies of lesional and nonlesional skin were collected at weeks 0 and 52 for RNA sequence analysis to evaluate changes in Trm cell number and effector function.

At week 28, almost all patients – 94% – achieved a Psoriasis Area and Severity Index 90 score, and 83% achieved PASI 100. At week 52, of the 18 still-enrolled patients, 69% had PASI 90 scores and 43% maintained PASI 100 scores. “We’re not curing psoriasis, but that is incredible to have 43% still clear 9 months after the last dose,” Dr. Blauvelt said.

The findings are interim results that pool the two doses of risankizumab (Skyrizi). An evaluation of maintenance of efficacy with the 300-mg versus 600-mg doses and results of the skin biopsies will be presented at the 2024 annual meeting of the American Academy of Dermatology, he said. Patients who have not had recurrences are being followed up to week 100 (unblinded).

Skin biopsy findings together with levels of clearance will “add insight as to whether high-dose IL-23 inhibition is associated with higher levels of complete clearance (i.e., PASI 100) over long periods of time, and whether remissions are associated with more profound knock-down of Trm cells,” Dr. Blauvelt wrote in an editorial on Trm cells in psoriasis published in the Journal of Psoriasis and Psoriatic Arthritis.

Risankizumab was approved by the Food and Drug Administration for moderate to severe plaque psoriasis in 2019, and for active psoriatic arthritis in 2022.
 

Impact of IL-23 inhibition

A 2021 study, Dr. Blauvelt noted in his presentation, showed that the IL-23 inhibitor guselkumab (Tremfya) reduced the number of Trm cells in healed psoriatic skin, while the IL-17A inhibitor secukinumab (Cosentyx) did not affect Trm cells.

Other researchers have concluded that local IL-23 is required for the proliferation and retention of Trm cells in the skin, he said, noting also that, as a class, IL-23 blockers “are associated with the longest disease-free intervals” in patients with psoriasis.

Research showing loss of Trm cells in biopsies of cleared skin is “incredibly important,” as is data showing that IL-23 may be “a critical survival factor” for Trm cells, said Christopher Ritchlin, MD, MPH, a rheumatologist and director of the clinical immunology research unit at the University of Rochester (N.Y.) Medical Center, who attended the NPF meeting and was asked to comment on the growing interest in Trm cells. He did not hear Dr. Blauvelt’s presentation but has followed Trm research in psoriasis.

Measuring Trm cells in synovial tissue of patients with psoriatic disease is, in fact, on the agenda of a new research team coled by Dr. Ritchlin that is part of the Autoimmune and Immune-Mediated Diseases Program of the Accelerating Medicine Partnership – a public-private partnership that aims to collect and analyze troves of biological data in order to illuminate the cellular and molecular interactions leading to autoimmune diseases.

“Resident memory T cells have been thought to be cells that are constrained to being resident in the tissue, and while that’s largely true, there’s more recent data showing that they actually can dedifferentiate and go back to the lymph node and then go back to the joint again,” Dr. Ritchlin noted in an interview. “So it’s a more complicated story,” but nonetheless targeting the cells is a concept worth exploring therapeutically.
 

Moving toward a cure?

The high induction doses of risankizumab in Dr. Blauvelt’s phase 2 “knockout” study were well tolerated through week 40, with safety profiles similar overall to those reported in previous studies of risankizumab and “no new safety signals,” Dr. Blauvelt said at the meeting.

(At baseline, patients had a mean disease duration of 21 years, a mean affected BSA of 21, and a mean PASI of 18.5. Seven had prior treatment with biologic medications, though not in the prior 4 months and not with risankizumab.)

In lieu of a cure, which is still possible in the next 10 years, he said, patients are eager for longer-term remission and the ability to break away from established regular dosing. After publication of a phase 1 study of risankizumab, in which a notable number of patients experienced complete skin clearance up to 1 year following a single high dose, “we started getting numerous calls in our [clinical trials] office from patients who said ‘I want to be on that drug that you give once a year,’ ” Dr. Blauvelt said. (The high dosing was not investigated any further in phase 2 and 3 research, he added.)

While the “knockout” study adopts a “hit hard” approach, it is also possible that a strategy to hit both hard and early after disease onset may induce long-term remission and/or cure of the disease. “I’m talking about using the best things first. There are hints that if we treat early, maybe we can keep [psoriasis] from becoming a chronic disease, keep it from ‘setting up shop’ if you will,” he said, noting that the “hit hard, hit early” concept is not unique to dermatology.

During a discussion period, Dr. Blauvelt said that in a future iteration of the “knockout” study, he would like to evaluate risankizumab in patients with disease duration under 12 months. It may also be valuable to look not only at Trm cells, but more broadly at other elements of the tissue architecture before and after treatment.

Among other strategies for achieving long-term remission and/or cure is the expansion of regulatory T cells, which work to “control inappropriate immune responses” and calm inflammation. Defects in the number and function of regulatory T cells are associated with psoriasis and other autoimmune diseases, and it appears in early research from other investigators that low-dose IL-2 can induce the expansion of regulatory T cells and improve psoriasis. “Keep tuned,” Dr. Blauvelt said.

Dr. Blauvelt disclosed ties with numerous pharmaceutical companies. Dr. Ritchlin had no disclosures.

HAMBURG, GERMANY – Testosterone replacement therapy was associated with significant reductions in hemoglobin A1c at 1 and 2 years among men with type 2 diabetes, a multinational audit shows.

“If you have a patient with type 2 diabetes, sexual dysfunction, or fatigue, please consider checking their testosterone level. And if they fulfill criteria for testosterone deficiency and have had their [prostate-specific antigen] checked, consider a trial of treatment and follow them,” study lead author T. Hugh Jones, MD, consultant physician and endocrinologist at Barnsley (England) Hospital NHS Foundation Trust advised, speaking with this news organization.

Dr. Jones also urges clinicians worldwide to enter their patients’ data into the ABCD Testosterone Audit, which aims to identify long-term outcomes and predictors of response to testosterone replacement therapy.

Dr. Jones, who is also professor of andrology at the University of Sheffield, presented the preliminary data analysis at the annual meeting of the European Association for the Study of Diabetes.

Thus far, a total of 428 men with type 2 diabetes and hypogonadism are entered into the audit, from 34 centers in eight countries: the United Kingdom, Germany, Canada, Brazil, South Africa, New Zealand, Malaysia, and Vietnam. Among 121 of the men at 12 months, there was a drop in A1c from a baseline level of 71.27 mmol/mol (8.7%) to 61.26 mmol/mol (7.8%). Among 104 men at 24 months, the drop was from 71.4 mmol/mol (8.7%) to 55.97 mmol/mol (7.3%). Both decreases were significant (P < .001).

Prior data from Dr. Jones’ group showed that about 40% of men with type 2 diabetes have symptomatic testosterone deficiency. Testosterone deficiency is also associated with adverse effects on cardiovascular risk factors, bone health, muscle strength, sexual function, and psychological well-being, yet it is often overlooked, Dr. Jones noted.

“It’s not typically measured in routine clinical practice. ... Deficiency is very common, but a lot of practitioners don’t treat it and don’t ask about it. But in fact, treatment has very significant benefits for patients. ... We know from sildenafil (Viagra) studies that 60%of people who didn’t respond were testosterone deficient. After being given testosterone, they converted to Viagra responders,” he noted.

Regarding safety concerns, the recent findings from the TRAVERSE study, in which about 70% of participants had type 2 diabetes, demonstrated no increased cardiovascular risk. There was also no association with prostate cancer, although it’s important to monitor prostate-specific antigen in patients for the first year on testosterone replacement, Dr. Jones said.

Asked to comment, endocrinologist Bradley D. Anawalt, MD, chief of medicine at the University of Washington Medical Center, Seattle, told this news organization, “This ‘worldwide survey’ confirms many studies from around the world over the past 20 years. ... [T]he association is due to ‘reverse causation,’ in that diabetes type 2 and obesity lower testosterone concentrations. Weight loss of 5%-10% may raise testosterone concentrations in men with high body mass indices, large waist circumferences, and low blood testosterone concentrations.”

At the same time, Dr. Anawalt pointed to data suggesting that “[t]reatment of androgen deficiency may facilitate lifestyle measures in men with high [body mass indexes] and high risk of type 2 diabetes to prevent, or more likely delay, the development of type 2 diabetes.”

However, both Dr. Jones and Dr. Anawalt emphasized that testosterone therapy would not be expected to affect blood glucose levels or any other cardiometabolic parameters in men who are not testosterone deficient, regardless of diabetes status.

“It’s important when you give testosterone to replace it to the normal level. Adequate treatment gives the greatest benefit,”Dr. Jones said.

As more centers contribute data to the ABCD audit, Jones anticipates collecting clinical practice data on a variety of clinical parameters, including complications, total insulin dose, kidney function, and eventually cardiovascular outcomes.

In the meantime, he said, giving testosterone replacement to men with deficiency can be very rewarding for many reasons. “People feel better. Individual patients come back and say ‘thank you doctor, you’ve given me my life back.’ It’s not often you get that. And the compliance is excellent.”

Dr. Jones is a speaker for, advisory board member for, and/or travel grant recipient of Besins Healthcare, Grantss, Grunenthal, and Simple Pharma. Dr. Anawalt has no disclosures.

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

HAMBURG, GERMANY – Testosterone replacement therapy was associated with significant reductions in hemoglobin A1c at 1 and 2 years among men with type 2 diabetes, a multinational audit shows.

“If you have a patient with type 2 diabetes, sexual dysfunction, or fatigue, please consider checking their testosterone level. And if they fulfill criteria for testosterone deficiency and have had their [prostate-specific antigen] checked, consider a trial of treatment and follow them,” study lead author T. Hugh Jones, MD, consultant physician and endocrinologist at Barnsley (England) Hospital NHS Foundation Trust advised, speaking with this news organization.

Dr. Jones also urges clinicians worldwide to enter their patients’ data into the ABCD Testosterone Audit, which aims to identify long-term outcomes and predictors of response to testosterone replacement therapy.

Dr. Jones, who is also professor of andrology at the University of Sheffield, presented the preliminary data analysis at the annual meeting of the European Association for the Study of Diabetes.

Thus far, a total of 428 men with type 2 diabetes and hypogonadism are entered into the audit, from 34 centers in eight countries: the United Kingdom, Germany, Canada, Brazil, South Africa, New Zealand, Malaysia, and Vietnam. Among 121 of the men at 12 months, there was a drop in A1c from a baseline level of 71.27 mmol/mol (8.7%) to 61.26 mmol/mol (7.8%). Among 104 men at 24 months, the drop was from 71.4 mmol/mol (8.7%) to 55.97 mmol/mol (7.3%). Both decreases were significant (P < .001).

Prior data from Dr. Jones’ group showed that about 40% of men with type 2 diabetes have symptomatic testosterone deficiency. Testosterone deficiency is also associated with adverse effects on cardiovascular risk factors, bone health, muscle strength, sexual function, and psychological well-being, yet it is often overlooked, Dr. Jones noted.

“It’s not typically measured in routine clinical practice. ... Deficiency is very common, but a lot of practitioners don’t treat it and don’t ask about it. But in fact, treatment has very significant benefits for patients. ... We know from sildenafil (Viagra) studies that 60%of people who didn’t respond were testosterone deficient. After being given testosterone, they converted to Viagra responders,” he noted.

Regarding safety concerns, the recent findings from the TRAVERSE study, in which about 70% of participants had type 2 diabetes, demonstrated no increased cardiovascular risk. There was also no association with prostate cancer, although it’s important to monitor prostate-specific antigen in patients for the first year on testosterone replacement, Dr. Jones said.

Asked to comment, endocrinologist Bradley D. Anawalt, MD, chief of medicine at the University of Washington Medical Center, Seattle, told this news organization, “This ‘worldwide survey’ confirms many studies from around the world over the past 20 years. ... [T]he association is due to ‘reverse causation,’ in that diabetes type 2 and obesity lower testosterone concentrations. Weight loss of 5%-10% may raise testosterone concentrations in men with high body mass indices, large waist circumferences, and low blood testosterone concentrations.”

At the same time, Dr. Anawalt pointed to data suggesting that “[t]reatment of androgen deficiency may facilitate lifestyle measures in men with high [body mass indexes] and high risk of type 2 diabetes to prevent, or more likely delay, the development of type 2 diabetes.”

However, both Dr. Jones and Dr. Anawalt emphasized that testosterone therapy would not be expected to affect blood glucose levels or any other cardiometabolic parameters in men who are not testosterone deficient, regardless of diabetes status.

“It’s important when you give testosterone to replace it to the normal level. Adequate treatment gives the greatest benefit,”Dr. Jones said.

As more centers contribute data to the ABCD audit, Jones anticipates collecting clinical practice data on a variety of clinical parameters, including complications, total insulin dose, kidney function, and eventually cardiovascular outcomes.

In the meantime, he said, giving testosterone replacement to men with deficiency can be very rewarding for many reasons. “People feel better. Individual patients come back and say ‘thank you doctor, you’ve given me my life back.’ It’s not often you get that. And the compliance is excellent.”

Dr. Jones is a speaker for, advisory board member for, and/or travel grant recipient of Besins Healthcare, Grantss, Grunenthal, and Simple Pharma. Dr. Anawalt has no disclosures.

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

HAMBURG, GERMANY – Testosterone replacement therapy was associated with significant reductions in hemoglobin A1c at 1 and 2 years among men with type 2 diabetes, a multinational audit shows.

“If you have a patient with type 2 diabetes, sexual dysfunction, or fatigue, please consider checking their testosterone level. And if they fulfill criteria for testosterone deficiency and have had their [prostate-specific antigen] checked, consider a trial of treatment and follow them,” study lead author T. Hugh Jones, MD, consultant physician and endocrinologist at Barnsley (England) Hospital NHS Foundation Trust advised, speaking with this news organization.

Dr. Jones also urges clinicians worldwide to enter their patients’ data into the ABCD Testosterone Audit, which aims to identify long-term outcomes and predictors of response to testosterone replacement therapy.

Dr. Jones, who is also professor of andrology at the University of Sheffield, presented the preliminary data analysis at the annual meeting of the European Association for the Study of Diabetes.

Thus far, a total of 428 men with type 2 diabetes and hypogonadism are entered into the audit, from 34 centers in eight countries: the United Kingdom, Germany, Canada, Brazil, South Africa, New Zealand, Malaysia, and Vietnam. Among 121 of the men at 12 months, there was a drop in A1c from a baseline level of 71.27 mmol/mol (8.7%) to 61.26 mmol/mol (7.8%). Among 104 men at 24 months, the drop was from 71.4 mmol/mol (8.7%) to 55.97 mmol/mol (7.3%). Both decreases were significant (P < .001).

Prior data from Dr. Jones’ group showed that about 40% of men with type 2 diabetes have symptomatic testosterone deficiency. Testosterone deficiency is also associated with adverse effects on cardiovascular risk factors, bone health, muscle strength, sexual function, and psychological well-being, yet it is often overlooked, Dr. Jones noted.

“It’s not typically measured in routine clinical practice. ... Deficiency is very common, but a lot of practitioners don’t treat it and don’t ask about it. But in fact, treatment has very significant benefits for patients. ... We know from sildenafil (Viagra) studies that 60%of people who didn’t respond were testosterone deficient. After being given testosterone, they converted to Viagra responders,” he noted.

Regarding safety concerns, the recent findings from the TRAVERSE study, in which about 70% of participants had type 2 diabetes, demonstrated no increased cardiovascular risk. There was also no association with prostate cancer, although it’s important to monitor prostate-specific antigen in patients for the first year on testosterone replacement, Dr. Jones said.

Asked to comment, endocrinologist Bradley D. Anawalt, MD, chief of medicine at the University of Washington Medical Center, Seattle, told this news organization, “This ‘worldwide survey’ confirms many studies from around the world over the past 20 years. ... [T]he association is due to ‘reverse causation,’ in that diabetes type 2 and obesity lower testosterone concentrations. Weight loss of 5%-10% may raise testosterone concentrations in men with high body mass indices, large waist circumferences, and low blood testosterone concentrations.”

At the same time, Dr. Anawalt pointed to data suggesting that “[t]reatment of androgen deficiency may facilitate lifestyle measures in men with high [body mass indexes] and high risk of type 2 diabetes to prevent, or more likely delay, the development of type 2 diabetes.”

However, both Dr. Jones and Dr. Anawalt emphasized that testosterone therapy would not be expected to affect blood glucose levels or any other cardiometabolic parameters in men who are not testosterone deficient, regardless of diabetes status.

“It’s important when you give testosterone to replace it to the normal level. Adequate treatment gives the greatest benefit,”Dr. Jones said.

As more centers contribute data to the ABCD audit, Jones anticipates collecting clinical practice data on a variety of clinical parameters, including complications, total insulin dose, kidney function, and eventually cardiovascular outcomes.

In the meantime, he said, giving testosterone replacement to men with deficiency can be very rewarding for many reasons. “People feel better. Individual patients come back and say ‘thank you doctor, you’ve given me my life back.’ It’s not often you get that. And the compliance is excellent.”

Dr. Jones is a speaker for, advisory board member for, and/or travel grant recipient of Besins Healthcare, Grantss, Grunenthal, and Simple Pharma. Dr. Anawalt has no disclosures.

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