Multiple Sclerosis

Key clinical point: The personalized multidisciplinary rehabilitation (PMDR) approach can improve highly impacting symptoms in patients with relapse-onset multiple sclerosis (MS) and have a positive influence on their quality of life.

Major finding: Patients receiving PMDR had a reduction in perceived fatigue and improvement of walking abilities and health-related quality of life compared with control individuals. Improved performance on a motor sequence learning task in terms of accuracy was observed after rehabilitation. All improvements persisted at the 4-week follow-up. 

Study details: A longitudinal parallel group study included 24 patients with relapse-onset MS, who received a 4-week PMDR, and 24 control individuals. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Athina Papadopoulou, Laura Gaetano, Katrin Parmar, Thierry Ettlin, Corina Schuster-Amft, Jens Wuerfel, Ludwig Kappos, Till Sprenger, and Stefano Magon reported receiving research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Zuber P et al. J Neurol. 2020 Mar 2. doi: 10.1007/s00415-020-09768-6.

Key clinical point: The personalized multidisciplinary rehabilitation (PMDR) approach can improve highly impacting symptoms in patients with relapse-onset multiple sclerosis (MS) and have a positive influence on their quality of life.

Major finding: Patients receiving PMDR had a reduction in perceived fatigue and improvement of walking abilities and health-related quality of life compared with control individuals. Improved performance on a motor sequence learning task in terms of accuracy was observed after rehabilitation. All improvements persisted at the 4-week follow-up. 

Study details: A longitudinal parallel group study included 24 patients with relapse-onset MS, who received a 4-week PMDR, and 24 control individuals. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Athina Papadopoulou, Laura Gaetano, Katrin Parmar, Thierry Ettlin, Corina Schuster-Amft, Jens Wuerfel, Ludwig Kappos, Till Sprenger, and Stefano Magon reported receiving research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Zuber P et al. J Neurol. 2020 Mar 2. doi: 10.1007/s00415-020-09768-6.

Key clinical point: The personalized multidisciplinary rehabilitation (PMDR) approach can improve highly impacting symptoms in patients with relapse-onset multiple sclerosis (MS) and have a positive influence on their quality of life.

Major finding: Patients receiving PMDR had a reduction in perceived fatigue and improvement of walking abilities and health-related quality of life compared with control individuals. Improved performance on a motor sequence learning task in terms of accuracy was observed after rehabilitation. All improvements persisted at the 4-week follow-up. 

Study details: A longitudinal parallel group study included 24 patients with relapse-onset MS, who received a 4-week PMDR, and 24 control individuals. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Athina Papadopoulou, Laura Gaetano, Katrin Parmar, Thierry Ettlin, Corina Schuster-Amft, Jens Wuerfel, Ludwig Kappos, Till Sprenger, and Stefano Magon reported receiving research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Zuber P et al. J Neurol. 2020 Mar 2. doi: 10.1007/s00415-020-09768-6.

Key clinical point: Patients with moderate-to-severe multiple sclerosis (MS) contribute substantially to the disease-related morbidity burden.

Major finding: Patients in asymptomatic and mild stages of MS represent 68.4% of the population and contribute to 39.8% of the MS-specific morbidity. The remaining 60.2% of the MS-specific morbidity comes from the 31.6% of patients in the moderate or severe disease stages. 

Study details: The data come from an analysis of 1,412 patients with MS identified from the Swiss Multiple Sclerosis Registry. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Anke Salmen, Claudio Gobbi, Caroline Pot, Christian P. Kamm, Jens Kuhle, Pasquale Calabrese, Stefanie Müller, and Sven Schippling reported research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Kaufmann M et al. Front Neurol. 2020 Mar 6. doi: 10.3389/fneur.2020.00156.

Key clinical point: Patients with moderate-to-severe multiple sclerosis (MS) contribute substantially to the disease-related morbidity burden.

Major finding: Patients in asymptomatic and mild stages of MS represent 68.4% of the population and contribute to 39.8% of the MS-specific morbidity. The remaining 60.2% of the MS-specific morbidity comes from the 31.6% of patients in the moderate or severe disease stages. 

Study details: The data come from an analysis of 1,412 patients with MS identified from the Swiss Multiple Sclerosis Registry. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Anke Salmen, Claudio Gobbi, Caroline Pot, Christian P. Kamm, Jens Kuhle, Pasquale Calabrese, Stefanie Müller, and Sven Schippling reported research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Kaufmann M et al. Front Neurol. 2020 Mar 6. doi: 10.3389/fneur.2020.00156.

Key clinical point: Patients with moderate-to-severe multiple sclerosis (MS) contribute substantially to the disease-related morbidity burden.

Major finding: Patients in asymptomatic and mild stages of MS represent 68.4% of the population and contribute to 39.8% of the MS-specific morbidity. The remaining 60.2% of the MS-specific morbidity comes from the 31.6% of patients in the moderate or severe disease stages. 

Study details: The data come from an analysis of 1,412 patients with MS identified from the Swiss Multiple Sclerosis Registry. 

Disclosures: The study was supported by the Swiss Multiple Sclerosis Society. Anke Salmen, Claudio Gobbi, Caroline Pot, Christian P. Kamm, Jens Kuhle, Pasquale Calabrese, Stefanie Müller, and Sven Schippling reported research support/speaker fees/speaker honoraria/travel support/consultancy fees/advisory fees from one or more pharmaceutical companies and/or organizations. The remaining authors declared no conflict of interest.

Citation: Kaufmann M et al. Front Neurol. 2020 Mar 6. doi: 10.3389/fneur.2020.00156.

Key clinical point: Alemtuzumab infusion in patients with multiple sclerosis (MS) is associated with the elevation of D-dimer level and the prolongation of prothrombin time (PT).

Major finding: Alemtuzumab infusion resulted in a significant elevation in D-dimer levels within the patient group (before vs after infusion, P = .00001) and also compared with control individuals (P = .00001). PT was also prolonged in patients receiving alemtuzumab post-infusion compared with the pre-infusion values (P = .00001).

Study details: In this study, coagulation parameters were analyzed in 13 patients with MS treated with alemtuzumab and 13 control individuals.

Disclosures: The study was supported by the MH CZ-DRO, Motol University Hospital, Prague, Czech Republic. Jana Libertinova, Eva Meluzinova, Eva Nema, Petra Rockova, Martin Elisak, Marko Petrzalka, and Hana Mojzisova reported receiving compensation for travel and/or speaker honoraria and consultant fees from multiple pharmaceutical companies. The remaining authors declared no conflict of interest. 

Citation: Libertinova J et al. Mult Scler. 2020 Feb 20. doi: 10.1177/1352458520904277. 

Key clinical point: Alemtuzumab infusion in patients with multiple sclerosis (MS) is associated with the elevation of D-dimer level and the prolongation of prothrombin time (PT).

Major finding: Alemtuzumab infusion resulted in a significant elevation in D-dimer levels within the patient group (before vs after infusion, P = .00001) and also compared with control individuals (P = .00001). PT was also prolonged in patients receiving alemtuzumab post-infusion compared with the pre-infusion values (P = .00001).

Study details: In this study, coagulation parameters were analyzed in 13 patients with MS treated with alemtuzumab and 13 control individuals.

Disclosures: The study was supported by the MH CZ-DRO, Motol University Hospital, Prague, Czech Republic. Jana Libertinova, Eva Meluzinova, Eva Nema, Petra Rockova, Martin Elisak, Marko Petrzalka, and Hana Mojzisova reported receiving compensation for travel and/or speaker honoraria and consultant fees from multiple pharmaceutical companies. The remaining authors declared no conflict of interest. 

Citation: Libertinova J et al. Mult Scler. 2020 Feb 20. doi: 10.1177/1352458520904277. 

Key clinical point: Alemtuzumab infusion in patients with multiple sclerosis (MS) is associated with the elevation of D-dimer level and the prolongation of prothrombin time (PT).

Major finding: Alemtuzumab infusion resulted in a significant elevation in D-dimer levels within the patient group (before vs after infusion, P = .00001) and also compared with control individuals (P = .00001). PT was also prolonged in patients receiving alemtuzumab post-infusion compared with the pre-infusion values (P = .00001).

Study details: In this study, coagulation parameters were analyzed in 13 patients with MS treated with alemtuzumab and 13 control individuals.

Disclosures: The study was supported by the MH CZ-DRO, Motol University Hospital, Prague, Czech Republic. Jana Libertinova, Eva Meluzinova, Eva Nema, Petra Rockova, Martin Elisak, Marko Petrzalka, and Hana Mojzisova reported receiving compensation for travel and/or speaker honoraria and consultant fees from multiple pharmaceutical companies. The remaining authors declared no conflict of interest. 

Citation: Libertinova J et al. Mult Scler. 2020 Feb 20. doi: 10.1177/1352458520904277. 

Key clinical point: Sexual dysfunction is highly prevalent in women with multiple sclerosis (MS), and it significantly affects their quality of life.

Major finding: The overall prevalence of sexual dysfunction in women with MS was 70.3%. Sexual dysfunction in women with MS had a significant correlation with age (P = .004), duration of marriage, (P = .004), fatigue (P less than or equal to .001), Expanded Disability Status Scale (P = .004), and the combined physical and mental health aspects of quality of life (P less than .05).                   

Study details: The data come from a cross-sectional study that was conducted in Iran, which included 300 married women with MS aged 22-50 years. 

Disclosures: The study was funded by the Isfahan University of Medical Sciences, Isfahan, Iran. The authors declared no conflict of interest.

Citation: Nazari F et al. BMC Urol. 2020 Feb 21. doi: 10.1186/s12894-020-0581-2.

Key clinical point: Sexual dysfunction is highly prevalent in women with multiple sclerosis (MS), and it significantly affects their quality of life.

Major finding: The overall prevalence of sexual dysfunction in women with MS was 70.3%. Sexual dysfunction in women with MS had a significant correlation with age (P = .004), duration of marriage, (P = .004), fatigue (P less than or equal to .001), Expanded Disability Status Scale (P = .004), and the combined physical and mental health aspects of quality of life (P less than .05).                   

Study details: The data come from a cross-sectional study that was conducted in Iran, which included 300 married women with MS aged 22-50 years. 

Disclosures: The study was funded by the Isfahan University of Medical Sciences, Isfahan, Iran. The authors declared no conflict of interest.

Citation: Nazari F et al. BMC Urol. 2020 Feb 21. doi: 10.1186/s12894-020-0581-2.

Key clinical point: Sexual dysfunction is highly prevalent in women with multiple sclerosis (MS), and it significantly affects their quality of life.

Major finding: The overall prevalence of sexual dysfunction in women with MS was 70.3%. Sexual dysfunction in women with MS had a significant correlation with age (P = .004), duration of marriage, (P = .004), fatigue (P less than or equal to .001), Expanded Disability Status Scale (P = .004), and the combined physical and mental health aspects of quality of life (P less than .05).                   

Study details: The data come from a cross-sectional study that was conducted in Iran, which included 300 married women with MS aged 22-50 years. 

Disclosures: The study was funded by the Isfahan University of Medical Sciences, Isfahan, Iran. The authors declared no conflict of interest.

Citation: Nazari F et al. BMC Urol. 2020 Feb 21. doi: 10.1186/s12894-020-0581-2.

Clinicians across the United States are petitioning the federal government to follow the lead of South Korea, China, and other nations by imposing an immediate nationwide quarantine to slow the inevitable spread of COVID-19. Without federal action, the creators say, their lives and the lives of their colleagues, patients, and families are being put at increased risk.

In addition to the quarantine, the petition, posted on the website Change.org, calls on U.S. leaders to institute emergency production and distribution of personal protective equipment for healthcare workers and to rapidly increase access to testing.

The petition – which garnered more than 40,000 signatures in just 12 hours and as of this writing was approaching 94,000 – was started by an apolitical Facebook group to focus attention on what members see as the most critical issues for clinicians: slowing the spread of the virus through a coast-to-coast quarantine, protection of medical personnel with adequate supplies of essential equipment, and widespread testing.

“We started this group last Friday out of the realization that clinicians needed information about the outbreak and weren’t getting it,” said coadministrator Jessica McIntyre, MD, a pediatric hospitalist at Elliot Hospital in Manchester, N.H.

“We wanted to get ahead of it and connect with people before we were in the trenches experiencing it and to see what other programs were doing. From a local perspective, it has been really hard to see what people are doing in other states, especially when the protocols in our own states are changing every single day as we collect more information,” she said in an interview.
 

The Horse Has Bolted

A family medicine physician in Illinois helped launch the Facebook group. She asked that her name not be used but said in an interview that earlier actions may have prevented or at least delayed the need for the more draconian measures that her group is recommending.

“Clearly South Korea is one of the superstars as far as response has gone, but the concern we have in the United States is that we’re well beyond that point – we needed to be testing people over a month ago, in the hope of preventing a quarantine,” she said in an interview.

According to National Public Radio, as of March 13, South Korea had conducted 3,600 tests per million population, compared with five per million in the United States.

“I think the most concerning part is to see where Italy is now and where we are in comparison. Our ICUs have not yet overflowed, but I think we’re definitely looking at that in the next few weeks – hopefully longer, but I suspect that it will happen shortly,” she continued.

She cited work by Harvard University biostatistician Xihong Lin, PhD, that shows that when health authorities in Wuhan, China – widely cited as the epicenter of the global pandemic – cordoned off the city, the infection rate dropped from one person infecting 3.8 others to one infecting 1.25, thereby significantly slowing the rate of transmission.

“This is absolutely what we need to be doing,” she said.
 

Real News

Within 3 days of its creation, the online group had accrued more than 80,000 members with advanced medical training, including MDs, DOs, physician assistants, nurse practitioners, and certified registered nurse anesthetists.

“A lot of us were already very busy with our day-to-day work outside of COVID-19, and I think a lot of us felt unsure about where to get the best information,” said coadministrator David Janssen, MD, a family medicine physician in group practice in Sioux Center, Iowa,

“If you turn on the TV, there’s a lot of politicizing of the issue, and there’s a lot of good information, but also a lot of bad information. When health care providers talk to other health care providers, that’s often how we get our information and how we learn,” he said in an interview.

The COVID-19 U.S. Physicians/APP Facebook group includes 20 volunteer moderators who handle hundreds of posts per hour from persons seeking information on the novel coronavirus, what to tell patients, and how to protect themselves.

“It’s been wonderful to see how providers have been helping other providers sort through issues. Teaching hospitals have their hands on the latest research, but a lot of people like myself are at small community hospitals, critical-access hospitals, where we may have a lot of questions but don’t necessarily have the answers readily available to us,” Dr. Janssen said.

Dr. Janssen said that his community of about 8,000 residents initially had only four COVID-19 testing kits, or one for every 2,000 people. The situation has since improved, and more tests are now available, he added.

Dr. McIntyre, Dr. Janssen, and the Illinois family physician have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Clinicians across the United States are petitioning the federal government to follow the lead of South Korea, China, and other nations by imposing an immediate nationwide quarantine to slow the inevitable spread of COVID-19. Without federal action, the creators say, their lives and the lives of their colleagues, patients, and families are being put at increased risk.

In addition to the quarantine, the petition, posted on the website Change.org, calls on U.S. leaders to institute emergency production and distribution of personal protective equipment for healthcare workers and to rapidly increase access to testing.

The petition – which garnered more than 40,000 signatures in just 12 hours and as of this writing was approaching 94,000 – was started by an apolitical Facebook group to focus attention on what members see as the most critical issues for clinicians: slowing the spread of the virus through a coast-to-coast quarantine, protection of medical personnel with adequate supplies of essential equipment, and widespread testing.

“We started this group last Friday out of the realization that clinicians needed information about the outbreak and weren’t getting it,” said coadministrator Jessica McIntyre, MD, a pediatric hospitalist at Elliot Hospital in Manchester, N.H.

“We wanted to get ahead of it and connect with people before we were in the trenches experiencing it and to see what other programs were doing. From a local perspective, it has been really hard to see what people are doing in other states, especially when the protocols in our own states are changing every single day as we collect more information,” she said in an interview.
 

The Horse Has Bolted

A family medicine physician in Illinois helped launch the Facebook group. She asked that her name not be used but said in an interview that earlier actions may have prevented or at least delayed the need for the more draconian measures that her group is recommending.

“Clearly South Korea is one of the superstars as far as response has gone, but the concern we have in the United States is that we’re well beyond that point – we needed to be testing people over a month ago, in the hope of preventing a quarantine,” she said in an interview.

According to National Public Radio, as of March 13, South Korea had conducted 3,600 tests per million population, compared with five per million in the United States.

“I think the most concerning part is to see where Italy is now and where we are in comparison. Our ICUs have not yet overflowed, but I think we’re definitely looking at that in the next few weeks – hopefully longer, but I suspect that it will happen shortly,” she continued.

She cited work by Harvard University biostatistician Xihong Lin, PhD, that shows that when health authorities in Wuhan, China – widely cited as the epicenter of the global pandemic – cordoned off the city, the infection rate dropped from one person infecting 3.8 others to one infecting 1.25, thereby significantly slowing the rate of transmission.

“This is absolutely what we need to be doing,” she said.
 

Real News

Within 3 days of its creation, the online group had accrued more than 80,000 members with advanced medical training, including MDs, DOs, physician assistants, nurse practitioners, and certified registered nurse anesthetists.

“A lot of us were already very busy with our day-to-day work outside of COVID-19, and I think a lot of us felt unsure about where to get the best information,” said coadministrator David Janssen, MD, a family medicine physician in group practice in Sioux Center, Iowa,

“If you turn on the TV, there’s a lot of politicizing of the issue, and there’s a lot of good information, but also a lot of bad information. When health care providers talk to other health care providers, that’s often how we get our information and how we learn,” he said in an interview.

The COVID-19 U.S. Physicians/APP Facebook group includes 20 volunteer moderators who handle hundreds of posts per hour from persons seeking information on the novel coronavirus, what to tell patients, and how to protect themselves.

“It’s been wonderful to see how providers have been helping other providers sort through issues. Teaching hospitals have their hands on the latest research, but a lot of people like myself are at small community hospitals, critical-access hospitals, where we may have a lot of questions but don’t necessarily have the answers readily available to us,” Dr. Janssen said.

Dr. Janssen said that his community of about 8,000 residents initially had only four COVID-19 testing kits, or one for every 2,000 people. The situation has since improved, and more tests are now available, he added.

Dr. McIntyre, Dr. Janssen, and the Illinois family physician have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Clinicians across the United States are petitioning the federal government to follow the lead of South Korea, China, and other nations by imposing an immediate nationwide quarantine to slow the inevitable spread of COVID-19. Without federal action, the creators say, their lives and the lives of their colleagues, patients, and families are being put at increased risk.

In addition to the quarantine, the petition, posted on the website Change.org, calls on U.S. leaders to institute emergency production and distribution of personal protective equipment for healthcare workers and to rapidly increase access to testing.

The petition – which garnered more than 40,000 signatures in just 12 hours and as of this writing was approaching 94,000 – was started by an apolitical Facebook group to focus attention on what members see as the most critical issues for clinicians: slowing the spread of the virus through a coast-to-coast quarantine, protection of medical personnel with adequate supplies of essential equipment, and widespread testing.

“We started this group last Friday out of the realization that clinicians needed information about the outbreak and weren’t getting it,” said coadministrator Jessica McIntyre, MD, a pediatric hospitalist at Elliot Hospital in Manchester, N.H.

“We wanted to get ahead of it and connect with people before we were in the trenches experiencing it and to see what other programs were doing. From a local perspective, it has been really hard to see what people are doing in other states, especially when the protocols in our own states are changing every single day as we collect more information,” she said in an interview.
 

The Horse Has Bolted

A family medicine physician in Illinois helped launch the Facebook group. She asked that her name not be used but said in an interview that earlier actions may have prevented or at least delayed the need for the more draconian measures that her group is recommending.

“Clearly South Korea is one of the superstars as far as response has gone, but the concern we have in the United States is that we’re well beyond that point – we needed to be testing people over a month ago, in the hope of preventing a quarantine,” she said in an interview.

According to National Public Radio, as of March 13, South Korea had conducted 3,600 tests per million population, compared with five per million in the United States.

“I think the most concerning part is to see where Italy is now and where we are in comparison. Our ICUs have not yet overflowed, but I think we’re definitely looking at that in the next few weeks – hopefully longer, but I suspect that it will happen shortly,” she continued.

She cited work by Harvard University biostatistician Xihong Lin, PhD, that shows that when health authorities in Wuhan, China – widely cited as the epicenter of the global pandemic – cordoned off the city, the infection rate dropped from one person infecting 3.8 others to one infecting 1.25, thereby significantly slowing the rate of transmission.

“This is absolutely what we need to be doing,” she said.
 

Real News

Within 3 days of its creation, the online group had accrued more than 80,000 members with advanced medical training, including MDs, DOs, physician assistants, nurse practitioners, and certified registered nurse anesthetists.

“A lot of us were already very busy with our day-to-day work outside of COVID-19, and I think a lot of us felt unsure about where to get the best information,” said coadministrator David Janssen, MD, a family medicine physician in group practice in Sioux Center, Iowa,

“If you turn on the TV, there’s a lot of politicizing of the issue, and there’s a lot of good information, but also a lot of bad information. When health care providers talk to other health care providers, that’s often how we get our information and how we learn,” he said in an interview.

The COVID-19 U.S. Physicians/APP Facebook group includes 20 volunteer moderators who handle hundreds of posts per hour from persons seeking information on the novel coronavirus, what to tell patients, and how to protect themselves.

“It’s been wonderful to see how providers have been helping other providers sort through issues. Teaching hospitals have their hands on the latest research, but a lot of people like myself are at small community hospitals, critical-access hospitals, where we may have a lot of questions but don’t necessarily have the answers readily available to us,” Dr. Janssen said.

Dr. Janssen said that his community of about 8,000 residents initially had only four COVID-19 testing kits, or one for every 2,000 people. The situation has since improved, and more tests are now available, he added.

Dr. McIntyre, Dr. Janssen, and the Illinois family physician have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.

Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.

Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.

“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”

For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.

At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.

For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.

Dr. Cryan likened this process to an “artificial fecal transplant.”

“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”

While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.

“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.

He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.

“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”

In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.

“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”

According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.

Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.

“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”

In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.

In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.

“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”

To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.

“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.

Dr. Cryan concluded his presentation on an optimistic note.

“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”

Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.

A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.

Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.

Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.

“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”

For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.

At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.

For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.

Dr. Cryan likened this process to an “artificial fecal transplant.”

“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”

While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.

“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.

He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.

“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”

In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.

“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”

According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.

Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.

“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”

In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.

In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.

“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”

To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.

“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.

Dr. Cryan concluded his presentation on an optimistic note.

“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”

Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.

A growing body of research links the gut with the brain and behavior, but compartmentalization within the medical community may be slowing investigation of the gut-brain axis, according to a leading expert.

Studies have shown that the microbiome may influence a diverse range of behavioral and neurological processes, from acute and chronic stress responses to development of Parkinson’s and Alzheimer’s disease, reported John F. Cryan, PhD, of University College Cork, Ireland.

Dr. Cryan began his presentation at the annual Gut Microbiota for Health World Summit by citing Hippocrates, who is thought to have stated that all diseases begin in the gut.

“That can be quite strange when I talk to my neurology or psychiatry colleagues,” Dr. Cryan said. “They sometimes look at me like I have two heads. Because in medicine we compartmentalize, and if you are studying neurology or psychiatry or [you are] in clinical practice, you are focusing on everything from the neck upwards.”

For more than a decade, Dr. Cryan and colleagues have been investigating the gut-brain axis, predominantly in mouse models, but also across animal species and in humans.

At the meeting, sponsored by the American Gastroenterological Association and the European Society for Neurogastroenterology and Motility, Dr. Cryan reviewed a variety of representative studies.

For instance, in both mice and humans, research has shown that C-section, which is associated with poorer microbiome diversity than vaginal delivery, has also been linked with social deficits and elevated stress responses. And in the case of mice, coprophagia, in which cesarean-delivered mice eat the feces of vaginally born mice, has been shown to ameliorate these psychiatric effects.

Dr. Cryan likened this process to an “artificial fecal transplant.”

“You know, co-housing and eating each other’s poo is not the translational approach that we were advocating by any means,” Dr. Cryan said. “But at least it tells us – in a proof-of-concept way – that if we change the microbiome, then we can reverse what’s going on.”

While the mechanisms behind the gut-brain axis remain incompletely understood, Dr. Cryan noted that the vagus nerve, which travels from the gut to the brain, plays a central role, and that transecting this nerve in mice stops the microbiome from affecting the brain.

“What happens in vagus doesn’t just stay in vagus, but will actually affect our emotions in different ways,” Dr. Cryan said.

He emphasized that communication travels both ways along the gut-brain axis, and went on to describe how this phenomenon has been demonstrated across a wide array of animals.

“From insects all the way through to primates, if you start to interfere with social behavior, you change the microbiome,” Dr. Cryan said. “But the opposite is also true; if you start to change the microbiome you can start to have widespread effects on social behavior.”

In humans, manipulating the microbiome could open up new psychiatric frontiers, Dr. Cryan said.

“[In the past 30 years], there really have been no real advances in how we manage mental health,” he said. “That’s very sobering when we are having such a mental health problem across all ages right now. And so perhaps it’s time for what we’ve coined the ‘psychobiotic revolution’ – time for a new way of thinking about mental health.”

According to Dr. Cryan, psychobiotics are interventions that target the microbiome for mental health purposes, including fermented foods, probiotics, prebiotics, synbiotics, parabiotics, and postbiotics.

Among these, probiotics have been a focal point of interventional research. Although results have been mixed, Dr. Cryan suggested that negative probiotic studies are more likely due to bacterial strain than a failure of the concept as a whole.

“Most strains of bacteria will do absolutely nothing,” Dr. Cryan said. “Strain is really important.”

In demonstration of this concept, he recounted a 2017 study conducted at University College Cork in which 22 healthy volunteers were given Bifidobacterium longum 1714, and then subjected to a social stress test. The results, published in Translational Psychiatry, showed that the probiotic, compared with placebo, was associated with attenuated stress responses, reduced daily stress, and enhanced visuospatial memory.

In contrast, a similar study by Dr. Cryan and colleagues, which tested Lactobacillus rhamnosus (JB-1), fell short.

“You [could not have gotten] more negative data into one paper if you tried,” Dr. Cryan said, referring to the study. “It did absolutely nothing.”

To find out which psychobiotics may have an impact, and how, Dr. Cryan called for more research.

“It’s still early days,” he said. “We probably have more meta-analyses and systematic reviews of the field than we have primary research papers.

Dr. Cryan concluded his presentation on an optimistic note.

“Neurology is waking up ... to understand that the microbiome could be playing a key role in many, many other disorders. ... Overall, what we’re beginning to see is that our state of gut markedly affects our state of mind.”

Dr. Cryan disclosed relationships with Abbott Nutrition, Roche Pharma, Nutricia, and others.

WEST PALM BEACH, FLA. – Patients with relapsing-remitting multiple sclerosis (MS) who receive 14 mg of teriflunomide are more likely to achieve no evidence of disease activity (NEDA) than those who receive placebo, according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Teriflunomide reduces the risks of relapse, relapse resulting in hospital admission, and relapse resulting in prolonged hospitalization, compared with placebo.

Teriflunomide modulates the immune system and is an approved treatment for relapsing-remitting MS and clinically isolated syndrome. The phase 3 TEMSO study provided evidence that established the treatment’s safety and efficacy. In that study, significantly more patients who received a 14-mg dose of teriflunomide achieved NEDA, compared with patients who received placebo. Researchers generally weight all components of NEDA (i.e., confirmed disability worsening [CDW], relapse, and unique active MRI lesions) equally, but this approach could limit the interpretation of how each endpoint contributes to the effectiveness of a disease-modifying therapy.
 

A new analysis of TEMSO data

Keith R. Edwards, MD, director of the MS Center of Northeastern New York in Latham and colleagues conducted a win ratio matched-pairs analysis of TEMSO data to evaluate the efficacy of teriflunomide in enabling patients to achieve NEDA. In this analysis, the components of NEDA were assessed in order of priority, rather than as factors of equal weight.

In TEMSO, patients with relapsing-remitting MS received placebo or 14 mg of teriflunomide for 108 weeks. Dr. Edwards and colleagues matched active and control patients according to baseline characteristics. They compared the occurrence of disease activity events between the members of each pair. If a patient receiving teriflunomide had an event later than a control did, or did not have the event at all, teriflunomide was considered to “win.” If neither patient in a pair had a given event, the researchers omitted the pair from their analysis. Dr. Edwards and colleagues counted wins and summarized them as ratios. They conducted a second win ratio analysis of all relapses and relapses resulting in deaths, life-threatening events, prolonged hospitalizations, and hospital admissions.

NEDA components were ranked and assessed in the following order of decreasing priority: CDW, relapse, unique active MRI lesions. In a sensitivity analysis, the investigators ranked and assessed these components in the reverse order.
 

Sensitivity analysis supported primary analysis

Dr. Edwards and colleagues included 363 participants who received placebo and 358 who received teriflunomide in their analysis. Baseline characteristics did not differ significantly between the two groups. The population’s mean age was approximately 38 years, and about 73% of participants were female. The population’s mean baseline Expanded Disability Status Scale score was 2.7. Overall, about 72% of participants completed the study.

The researchers created 321 risk-matched pairs of participants. The win ratio analysis indicated that patients who received teriflunomide were significantly more likely to achieve NEDA, compared with controls (win ratio, 1.33). When the investigators analyzed the data by prioritizing the NEDA components in the reverse order, they found similar results (win ratio, 1.41).

When Dr. Edwards and colleagues analyzed relapse severity, they found that no relapses resulting in death or life-threatening events occurred in the active or control groups. Compared with placebo, teriflunomide significantly reduced the risk of relapse, relapses resulting in hospital admissions, and relapses resulting in prolonged hospitalizations (win ratio, 1.37).

The TEMSO study was funded by Sanofi. Dr. Edwards received grant or research support from Biogen, Genentech, Genzyme, and Novartis. Several authors received funding from Sanofi.

[email protected]

SOURCE: Edwards KR et al. ACTRIMS 2020, Abstract P036.

WEST PALM BEACH, FLA. – Patients with relapsing-remitting multiple sclerosis (MS) who receive 14 mg of teriflunomide are more likely to achieve no evidence of disease activity (NEDA) than those who receive placebo, according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Teriflunomide reduces the risks of relapse, relapse resulting in hospital admission, and relapse resulting in prolonged hospitalization, compared with placebo.

Teriflunomide modulates the immune system and is an approved treatment for relapsing-remitting MS and clinically isolated syndrome. The phase 3 TEMSO study provided evidence that established the treatment’s safety and efficacy. In that study, significantly more patients who received a 14-mg dose of teriflunomide achieved NEDA, compared with patients who received placebo. Researchers generally weight all components of NEDA (i.e., confirmed disability worsening [CDW], relapse, and unique active MRI lesions) equally, but this approach could limit the interpretation of how each endpoint contributes to the effectiveness of a disease-modifying therapy.
 

A new analysis of TEMSO data

Keith R. Edwards, MD, director of the MS Center of Northeastern New York in Latham and colleagues conducted a win ratio matched-pairs analysis of TEMSO data to evaluate the efficacy of teriflunomide in enabling patients to achieve NEDA. In this analysis, the components of NEDA were assessed in order of priority, rather than as factors of equal weight.

In TEMSO, patients with relapsing-remitting MS received placebo or 14 mg of teriflunomide for 108 weeks. Dr. Edwards and colleagues matched active and control patients according to baseline characteristics. They compared the occurrence of disease activity events between the members of each pair. If a patient receiving teriflunomide had an event later than a control did, or did not have the event at all, teriflunomide was considered to “win.” If neither patient in a pair had a given event, the researchers omitted the pair from their analysis. Dr. Edwards and colleagues counted wins and summarized them as ratios. They conducted a second win ratio analysis of all relapses and relapses resulting in deaths, life-threatening events, prolonged hospitalizations, and hospital admissions.

NEDA components were ranked and assessed in the following order of decreasing priority: CDW, relapse, unique active MRI lesions. In a sensitivity analysis, the investigators ranked and assessed these components in the reverse order.
 

Sensitivity analysis supported primary analysis

Dr. Edwards and colleagues included 363 participants who received placebo and 358 who received teriflunomide in their analysis. Baseline characteristics did not differ significantly between the two groups. The population’s mean age was approximately 38 years, and about 73% of participants were female. The population’s mean baseline Expanded Disability Status Scale score was 2.7. Overall, about 72% of participants completed the study.

The researchers created 321 risk-matched pairs of participants. The win ratio analysis indicated that patients who received teriflunomide were significantly more likely to achieve NEDA, compared with controls (win ratio, 1.33). When the investigators analyzed the data by prioritizing the NEDA components in the reverse order, they found similar results (win ratio, 1.41).

When Dr. Edwards and colleagues analyzed relapse severity, they found that no relapses resulting in death or life-threatening events occurred in the active or control groups. Compared with placebo, teriflunomide significantly reduced the risk of relapse, relapses resulting in hospital admissions, and relapses resulting in prolonged hospitalizations (win ratio, 1.37).

The TEMSO study was funded by Sanofi. Dr. Edwards received grant or research support from Biogen, Genentech, Genzyme, and Novartis. Several authors received funding from Sanofi.

[email protected]

SOURCE: Edwards KR et al. ACTRIMS 2020, Abstract P036.

WEST PALM BEACH, FLA. – Patients with relapsing-remitting multiple sclerosis (MS) who receive 14 mg of teriflunomide are more likely to achieve no evidence of disease activity (NEDA) than those who receive placebo, according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Teriflunomide reduces the risks of relapse, relapse resulting in hospital admission, and relapse resulting in prolonged hospitalization, compared with placebo.

Teriflunomide modulates the immune system and is an approved treatment for relapsing-remitting MS and clinically isolated syndrome. The phase 3 TEMSO study provided evidence that established the treatment’s safety and efficacy. In that study, significantly more patients who received a 14-mg dose of teriflunomide achieved NEDA, compared with patients who received placebo. Researchers generally weight all components of NEDA (i.e., confirmed disability worsening [CDW], relapse, and unique active MRI lesions) equally, but this approach could limit the interpretation of how each endpoint contributes to the effectiveness of a disease-modifying therapy.
 

A new analysis of TEMSO data

Keith R. Edwards, MD, director of the MS Center of Northeastern New York in Latham and colleagues conducted a win ratio matched-pairs analysis of TEMSO data to evaluate the efficacy of teriflunomide in enabling patients to achieve NEDA. In this analysis, the components of NEDA were assessed in order of priority, rather than as factors of equal weight.

In TEMSO, patients with relapsing-remitting MS received placebo or 14 mg of teriflunomide for 108 weeks. Dr. Edwards and colleagues matched active and control patients according to baseline characteristics. They compared the occurrence of disease activity events between the members of each pair. If a patient receiving teriflunomide had an event later than a control did, or did not have the event at all, teriflunomide was considered to “win.” If neither patient in a pair had a given event, the researchers omitted the pair from their analysis. Dr. Edwards and colleagues counted wins and summarized them as ratios. They conducted a second win ratio analysis of all relapses and relapses resulting in deaths, life-threatening events, prolonged hospitalizations, and hospital admissions.

NEDA components were ranked and assessed in the following order of decreasing priority: CDW, relapse, unique active MRI lesions. In a sensitivity analysis, the investigators ranked and assessed these components in the reverse order.
 

Sensitivity analysis supported primary analysis

Dr. Edwards and colleagues included 363 participants who received placebo and 358 who received teriflunomide in their analysis. Baseline characteristics did not differ significantly between the two groups. The population’s mean age was approximately 38 years, and about 73% of participants were female. The population’s mean baseline Expanded Disability Status Scale score was 2.7. Overall, about 72% of participants completed the study.

The researchers created 321 risk-matched pairs of participants. The win ratio analysis indicated that patients who received teriflunomide were significantly more likely to achieve NEDA, compared with controls (win ratio, 1.33). When the investigators analyzed the data by prioritizing the NEDA components in the reverse order, they found similar results (win ratio, 1.41).

When Dr. Edwards and colleagues analyzed relapse severity, they found that no relapses resulting in death or life-threatening events occurred in the active or control groups. Compared with placebo, teriflunomide significantly reduced the risk of relapse, relapses resulting in hospital admissions, and relapses resulting in prolonged hospitalizations (win ratio, 1.37).

The TEMSO study was funded by Sanofi. Dr. Edwards received grant or research support from Biogen, Genentech, Genzyme, and Novartis. Several authors received funding from Sanofi.

[email protected]

SOURCE: Edwards KR et al. ACTRIMS 2020, Abstract P036.

WEST PALM BEACH, FLA. – As disease duration increases, patients with pediatric-onset multiple sclerosis (POMS) have an increased rate of impairment in manual dexterity, compared with patients with adult-onset MS (AOMS), according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

When MS onset occurs before the patient is age 18 years, the patient is considered to have POMS. Compared with AOMS, POMS is less prevalent and has distinct features. To determine whether changes in physical performance differ between POMS and AOMS, Sarah M. Planchon, PhD, a project scientist at the Mellen Center for MS at the Cleveland Clinic, and colleagues analyzed data cut 9 from the MS PATHS (MS Partners Advancing Technology and Health Solutions) initiative. As part of this initiative, which is sponsored by Biogen, investigators collect MS performance measures longitudinally at each patient visit. Among these measures are the manual dexterity test (MDT), an iPad version of the Nine-Hole Peg Test, and the walking speed test (WST), which is the iPad version of the Timed 25-Foot Walk.

Dr. Planchon and colleagues matched each patient with POMS to five patients with AOMS according to disease duration. They calculated descriptive statistics for the sample and performed Tukey’s honestly significant difference test to compare patient groups on several categorical variables.
 

Overall, function was better in POMS than in AOMS

The investigators included 3 years’ worth of data from 6,457 patients in their analysis. The average age was approximately 50 years for patients with AOMS and 31 years for patients with POMS. The time elapsed since diagnosis was approximately 14 years in the AOMS group and 17 years in the POMS group. The proportion of female patients was about 74% in the AOMS group and 73% in the POMS group. Compared with the AOMS group, the POMS group had higher proportions of patients who were Asian (0.5% vs 2.6%), black (9.3% vs 11.5%), and other race (2.8% vs 9.3%).

Overall, patients with POMS performed better than patients with AOMS by 1.39 seconds on the MDT and by 0.79 seconds on the WST. Regression analyses indicated that with increasing age, patients with AOMS declined more quickly on the MDT and the WST than patients with POMS did. When the investigators stratified the results by disease duration, however, patients with POMS declined more rapidly on the MDT than did patients with AOMS. There was no significant difference between groups in WST in this analysis. When Dr. Planchon and colleagues performed linear regression and adjusted for variables such as age, sex, race, education, insurance, employment, MS phenotype, disease duration, number of relapses, and Patient-Determined Disease Steps (PDDS), the MS onset type did not significantly affect outcomes. Age, sex, PDDS, and MS type were significant covariates for both tests.
 

The role of occupational and physical therapy

“POMS patients tend to have a greater dysfunction of the cerebellar and brainstem regions of the brain, both of which may impact motor skills to a greater degree than other regions of the brain,” said Dr. Planchon. The increased rate of manual impairment in POMS, compared with AOMS, does not necessarily indicate more severe disease, she added. Getting a true picture of disease severity would require consideration of factors such as ambulation, cognitive functioning, vision, fatigue, and depression.

“We would recommend introducing POMS patients to occupational and physical therapy early in their disease course, before significant deficits accrue,” said Dr. Planchon. “Early familiarity with rehabilitation services should help the patient and family optimize what exercises are being done to improve and maintain function.”

The optimal pharmacologic treatment for POMS is unknown. One therapy (i.e., fingolimod) has Food and Drug Administration approval, and clinical trials of other treatments are ongoing. Some MS treatments not indicated for a pediatric population are used off label in children.

“We plan to delve deeper into the data set, including using regression modeling to try to better define differences between individuals with POMS and AOMS that may lead to the functional outcome changes we have already observed,” said Dr. Planchon. “We also plan to investigate further the impact of POMS on cognition and quality of life measures and to better understand disease-modifying therapy prescribing patterns and benefits in individuals with POMS. We will look for associations in the MRI imaging findings and various biomarkers to help us understand the disease process in this special population of MS.”

Dr. Planchon has received research support from the Guthy-Jackson Charitable Foundation. Her coinvestigators received funding from Biogen, Genentech, Genzyme, MedImmune, Novartis, Serono, and Teva.

[email protected]

SOURCE: Planchon SM et al. ACTRIMS 2020. Abstract P043.

WEST PALM BEACH, FLA. – As disease duration increases, patients with pediatric-onset multiple sclerosis (POMS) have an increased rate of impairment in manual dexterity, compared with patients with adult-onset MS (AOMS), according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

When MS onset occurs before the patient is age 18 years, the patient is considered to have POMS. Compared with AOMS, POMS is less prevalent and has distinct features. To determine whether changes in physical performance differ between POMS and AOMS, Sarah M. Planchon, PhD, a project scientist at the Mellen Center for MS at the Cleveland Clinic, and colleagues analyzed data cut 9 from the MS PATHS (MS Partners Advancing Technology and Health Solutions) initiative. As part of this initiative, which is sponsored by Biogen, investigators collect MS performance measures longitudinally at each patient visit. Among these measures are the manual dexterity test (MDT), an iPad version of the Nine-Hole Peg Test, and the walking speed test (WST), which is the iPad version of the Timed 25-Foot Walk.

Dr. Planchon and colleagues matched each patient with POMS to five patients with AOMS according to disease duration. They calculated descriptive statistics for the sample and performed Tukey’s honestly significant difference test to compare patient groups on several categorical variables.
 

Overall, function was better in POMS than in AOMS

The investigators included 3 years’ worth of data from 6,457 patients in their analysis. The average age was approximately 50 years for patients with AOMS and 31 years for patients with POMS. The time elapsed since diagnosis was approximately 14 years in the AOMS group and 17 years in the POMS group. The proportion of female patients was about 74% in the AOMS group and 73% in the POMS group. Compared with the AOMS group, the POMS group had higher proportions of patients who were Asian (0.5% vs 2.6%), black (9.3% vs 11.5%), and other race (2.8% vs 9.3%).

Overall, patients with POMS performed better than patients with AOMS by 1.39 seconds on the MDT and by 0.79 seconds on the WST. Regression analyses indicated that with increasing age, patients with AOMS declined more quickly on the MDT and the WST than patients with POMS did. When the investigators stratified the results by disease duration, however, patients with POMS declined more rapidly on the MDT than did patients with AOMS. There was no significant difference between groups in WST in this analysis. When Dr. Planchon and colleagues performed linear regression and adjusted for variables such as age, sex, race, education, insurance, employment, MS phenotype, disease duration, number of relapses, and Patient-Determined Disease Steps (PDDS), the MS onset type did not significantly affect outcomes. Age, sex, PDDS, and MS type were significant covariates for both tests.
 

The role of occupational and physical therapy

“POMS patients tend to have a greater dysfunction of the cerebellar and brainstem regions of the brain, both of which may impact motor skills to a greater degree than other regions of the brain,” said Dr. Planchon. The increased rate of manual impairment in POMS, compared with AOMS, does not necessarily indicate more severe disease, she added. Getting a true picture of disease severity would require consideration of factors such as ambulation, cognitive functioning, vision, fatigue, and depression.

“We would recommend introducing POMS patients to occupational and physical therapy early in their disease course, before significant deficits accrue,” said Dr. Planchon. “Early familiarity with rehabilitation services should help the patient and family optimize what exercises are being done to improve and maintain function.”

The optimal pharmacologic treatment for POMS is unknown. One therapy (i.e., fingolimod) has Food and Drug Administration approval, and clinical trials of other treatments are ongoing. Some MS treatments not indicated for a pediatric population are used off label in children.

“We plan to delve deeper into the data set, including using regression modeling to try to better define differences between individuals with POMS and AOMS that may lead to the functional outcome changes we have already observed,” said Dr. Planchon. “We also plan to investigate further the impact of POMS on cognition and quality of life measures and to better understand disease-modifying therapy prescribing patterns and benefits in individuals with POMS. We will look for associations in the MRI imaging findings and various biomarkers to help us understand the disease process in this special population of MS.”

Dr. Planchon has received research support from the Guthy-Jackson Charitable Foundation. Her coinvestigators received funding from Biogen, Genentech, Genzyme, MedImmune, Novartis, Serono, and Teva.

[email protected]

SOURCE: Planchon SM et al. ACTRIMS 2020. Abstract P043.

WEST PALM BEACH, FLA. – As disease duration increases, patients with pediatric-onset multiple sclerosis (POMS) have an increased rate of impairment in manual dexterity, compared with patients with adult-onset MS (AOMS), according to an analysis presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

When MS onset occurs before the patient is age 18 years, the patient is considered to have POMS. Compared with AOMS, POMS is less prevalent and has distinct features. To determine whether changes in physical performance differ between POMS and AOMS, Sarah M. Planchon, PhD, a project scientist at the Mellen Center for MS at the Cleveland Clinic, and colleagues analyzed data cut 9 from the MS PATHS (MS Partners Advancing Technology and Health Solutions) initiative. As part of this initiative, which is sponsored by Biogen, investigators collect MS performance measures longitudinally at each patient visit. Among these measures are the manual dexterity test (MDT), an iPad version of the Nine-Hole Peg Test, and the walking speed test (WST), which is the iPad version of the Timed 25-Foot Walk.

Dr. Planchon and colleagues matched each patient with POMS to five patients with AOMS according to disease duration. They calculated descriptive statistics for the sample and performed Tukey’s honestly significant difference test to compare patient groups on several categorical variables.
 

Overall, function was better in POMS than in AOMS

The investigators included 3 years’ worth of data from 6,457 patients in their analysis. The average age was approximately 50 years for patients with AOMS and 31 years for patients with POMS. The time elapsed since diagnosis was approximately 14 years in the AOMS group and 17 years in the POMS group. The proportion of female patients was about 74% in the AOMS group and 73% in the POMS group. Compared with the AOMS group, the POMS group had higher proportions of patients who were Asian (0.5% vs 2.6%), black (9.3% vs 11.5%), and other race (2.8% vs 9.3%).

Overall, patients with POMS performed better than patients with AOMS by 1.39 seconds on the MDT and by 0.79 seconds on the WST. Regression analyses indicated that with increasing age, patients with AOMS declined more quickly on the MDT and the WST than patients with POMS did. When the investigators stratified the results by disease duration, however, patients with POMS declined more rapidly on the MDT than did patients with AOMS. There was no significant difference between groups in WST in this analysis. When Dr. Planchon and colleagues performed linear regression and adjusted for variables such as age, sex, race, education, insurance, employment, MS phenotype, disease duration, number of relapses, and Patient-Determined Disease Steps (PDDS), the MS onset type did not significantly affect outcomes. Age, sex, PDDS, and MS type were significant covariates for both tests.
 

The role of occupational and physical therapy

“POMS patients tend to have a greater dysfunction of the cerebellar and brainstem regions of the brain, both of which may impact motor skills to a greater degree than other regions of the brain,” said Dr. Planchon. The increased rate of manual impairment in POMS, compared with AOMS, does not necessarily indicate more severe disease, she added. Getting a true picture of disease severity would require consideration of factors such as ambulation, cognitive functioning, vision, fatigue, and depression.

“We would recommend introducing POMS patients to occupational and physical therapy early in their disease course, before significant deficits accrue,” said Dr. Planchon. “Early familiarity with rehabilitation services should help the patient and family optimize what exercises are being done to improve and maintain function.”

The optimal pharmacologic treatment for POMS is unknown. One therapy (i.e., fingolimod) has Food and Drug Administration approval, and clinical trials of other treatments are ongoing. Some MS treatments not indicated for a pediatric population are used off label in children.

“We plan to delve deeper into the data set, including using regression modeling to try to better define differences between individuals with POMS and AOMS that may lead to the functional outcome changes we have already observed,” said Dr. Planchon. “We also plan to investigate further the impact of POMS on cognition and quality of life measures and to better understand disease-modifying therapy prescribing patterns and benefits in individuals with POMS. We will look for associations in the MRI imaging findings and various biomarkers to help us understand the disease process in this special population of MS.”

Dr. Planchon has received research support from the Guthy-Jackson Charitable Foundation. Her coinvestigators received funding from Biogen, Genentech, Genzyme, MedImmune, Novartis, Serono, and Teva.

[email protected]

SOURCE: Planchon SM et al. ACTRIMS 2020. Abstract P043.

WEST PALM BEACH, FLA. – The use of a disease-modifying therapy (DMT) is common among older patients with multiple sclerosis even though DMTs may be less effective in this population, according to a review of clinical trial results and registry data.

MS disease activity typically declines with age. At the same time, evidence to support the efficacy of MS drugs in older patients is limited, said Yinan Zhang, MD, a researcher at Icahn School of Medicine at Mount Sinai, New York. Clinical trials have tended to enroll younger patients and to include only patients with active disease, which is not representative of most older patients in the real world, Dr. Zhang said.

“DMTs for MS may be less efficacious in the elderly, especially in the absence of active disease, yet real-world prescribing patterns still show widespread use of DMTs in older patients,” Dr. Zhang and colleagues said. Physicians may be able to use the presence of disease activity to identify older patients who should receive therapy. “Continuing DMTs in elderly patients who have no evidence of disease activity should be questioned rather than accepted,” they said at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

To investigate whether age affects the efficacy of DMTs in patients with relapsing-remitting MS and how often DMTs are used in different age groups, Dr. Zhang and coinvestigators conducted a meta-analysis of group-level data from clinical trial, analyzed individual-level data from one of the trials, and reviewed survey data from two registries.

The meta-analysis included 26 clinical trials of 13 DMTs with more than 12,400 patients. Participants had an average age of about 37 years. “An age-dependent relationship of DMTs on relapse rate in RRMS [relapsing-remitting MS] cannot be established with currently published aggregate summary data,” the researchers said. “The meta-analysis was limited by the use of group-level data resulting in a narrow range of mean age.”

In an effort to overcome the limitations of group-level data, they analyzed individual-level data from approximately 1,000 patients in the CombiRx trial, which compared interferon beta-1a plus glatiramer acetate versus the agents alone. Thirty-seven of the patients were aged 55 years or older. The results suggest that each “1-year increase in baseline age was associated with a 3.2% reduction in the odds of having a relapse” during the trial, the investigators said. Change in annualized relapse rate was not significantly associated with age group, which may have resulted from “enrollment criteria selecting for patients with active disease, where DMTs are expected to show the greatest efficacy,” the researchers said.

Finally, Dr. Zhang and colleagues reviewed data on DMT use by age group from the North American Research Committee on Multiple Sclerosis (NARCOMS) and the Multiple Sclerosis Surveillance Registry (MSSR) from Veterans Affairs. In a 2018 survey of nearly 7,000 patients in the NARCOMS registry, 39.2% of patients older than 60 years were taking a DMT, including 44.5% of patients aged 61-70, 28.6% of patients aged 71-80, and 11% of patients aged 81 years and older. In comparison, about 62% of patients aged 41-50 years were taking DMT.

A 2019 survey of about 1,700 veterans in the MSSR found that 36.3% of patients older than 60 years were taking a DMT, including 41.1% of patients aged 61-70, 27.2% of patients aged 71-80, and 7.1% of patients aged 81 years and older. Among patients aged 41-50 years, more than 72% were taking a DMT. “The continued use of DMTs in the elderly may be the result of the perceived notion that disease inactivity is due to the effect of DMTs rather than the natural disease course with aging,” they said.

Dr. Zhang had no relevant disclosures. Coauthors disclosed consulting for and grant support from various pharmaceutical companies.

[email protected]

SOURCE: Zhang Y et al. ACTRIMS Forum 2020. Abstract P263.

WEST PALM BEACH, FLA. – The use of a disease-modifying therapy (DMT) is common among older patients with multiple sclerosis even though DMTs may be less effective in this population, according to a review of clinical trial results and registry data.

MS disease activity typically declines with age. At the same time, evidence to support the efficacy of MS drugs in older patients is limited, said Yinan Zhang, MD, a researcher at Icahn School of Medicine at Mount Sinai, New York. Clinical trials have tended to enroll younger patients and to include only patients with active disease, which is not representative of most older patients in the real world, Dr. Zhang said.

“DMTs for MS may be less efficacious in the elderly, especially in the absence of active disease, yet real-world prescribing patterns still show widespread use of DMTs in older patients,” Dr. Zhang and colleagues said. Physicians may be able to use the presence of disease activity to identify older patients who should receive therapy. “Continuing DMTs in elderly patients who have no evidence of disease activity should be questioned rather than accepted,” they said at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

To investigate whether age affects the efficacy of DMTs in patients with relapsing-remitting MS and how often DMTs are used in different age groups, Dr. Zhang and coinvestigators conducted a meta-analysis of group-level data from clinical trial, analyzed individual-level data from one of the trials, and reviewed survey data from two registries.

The meta-analysis included 26 clinical trials of 13 DMTs with more than 12,400 patients. Participants had an average age of about 37 years. “An age-dependent relationship of DMTs on relapse rate in RRMS [relapsing-remitting MS] cannot be established with currently published aggregate summary data,” the researchers said. “The meta-analysis was limited by the use of group-level data resulting in a narrow range of mean age.”

In an effort to overcome the limitations of group-level data, they analyzed individual-level data from approximately 1,000 patients in the CombiRx trial, which compared interferon beta-1a plus glatiramer acetate versus the agents alone. Thirty-seven of the patients were aged 55 years or older. The results suggest that each “1-year increase in baseline age was associated with a 3.2% reduction in the odds of having a relapse” during the trial, the investigators said. Change in annualized relapse rate was not significantly associated with age group, which may have resulted from “enrollment criteria selecting for patients with active disease, where DMTs are expected to show the greatest efficacy,” the researchers said.

Finally, Dr. Zhang and colleagues reviewed data on DMT use by age group from the North American Research Committee on Multiple Sclerosis (NARCOMS) and the Multiple Sclerosis Surveillance Registry (MSSR) from Veterans Affairs. In a 2018 survey of nearly 7,000 patients in the NARCOMS registry, 39.2% of patients older than 60 years were taking a DMT, including 44.5% of patients aged 61-70, 28.6% of patients aged 71-80, and 11% of patients aged 81 years and older. In comparison, about 62% of patients aged 41-50 years were taking DMT.

A 2019 survey of about 1,700 veterans in the MSSR found that 36.3% of patients older than 60 years were taking a DMT, including 41.1% of patients aged 61-70, 27.2% of patients aged 71-80, and 7.1% of patients aged 81 years and older. Among patients aged 41-50 years, more than 72% were taking a DMT. “The continued use of DMTs in the elderly may be the result of the perceived notion that disease inactivity is due to the effect of DMTs rather than the natural disease course with aging,” they said.

Dr. Zhang had no relevant disclosures. Coauthors disclosed consulting for and grant support from various pharmaceutical companies.

[email protected]

SOURCE: Zhang Y et al. ACTRIMS Forum 2020. Abstract P263.

WEST PALM BEACH, FLA. – The use of a disease-modifying therapy (DMT) is common among older patients with multiple sclerosis even though DMTs may be less effective in this population, according to a review of clinical trial results and registry data.

MS disease activity typically declines with age. At the same time, evidence to support the efficacy of MS drugs in older patients is limited, said Yinan Zhang, MD, a researcher at Icahn School of Medicine at Mount Sinai, New York. Clinical trials have tended to enroll younger patients and to include only patients with active disease, which is not representative of most older patients in the real world, Dr. Zhang said.

“DMTs for MS may be less efficacious in the elderly, especially in the absence of active disease, yet real-world prescribing patterns still show widespread use of DMTs in older patients,” Dr. Zhang and colleagues said. Physicians may be able to use the presence of disease activity to identify older patients who should receive therapy. “Continuing DMTs in elderly patients who have no evidence of disease activity should be questioned rather than accepted,” they said at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

To investigate whether age affects the efficacy of DMTs in patients with relapsing-remitting MS and how often DMTs are used in different age groups, Dr. Zhang and coinvestigators conducted a meta-analysis of group-level data from clinical trial, analyzed individual-level data from one of the trials, and reviewed survey data from two registries.

The meta-analysis included 26 clinical trials of 13 DMTs with more than 12,400 patients. Participants had an average age of about 37 years. “An age-dependent relationship of DMTs on relapse rate in RRMS [relapsing-remitting MS] cannot be established with currently published aggregate summary data,” the researchers said. “The meta-analysis was limited by the use of group-level data resulting in a narrow range of mean age.”

In an effort to overcome the limitations of group-level data, they analyzed individual-level data from approximately 1,000 patients in the CombiRx trial, which compared interferon beta-1a plus glatiramer acetate versus the agents alone. Thirty-seven of the patients were aged 55 years or older. The results suggest that each “1-year increase in baseline age was associated with a 3.2% reduction in the odds of having a relapse” during the trial, the investigators said. Change in annualized relapse rate was not significantly associated with age group, which may have resulted from “enrollment criteria selecting for patients with active disease, where DMTs are expected to show the greatest efficacy,” the researchers said.

Finally, Dr. Zhang and colleagues reviewed data on DMT use by age group from the North American Research Committee on Multiple Sclerosis (NARCOMS) and the Multiple Sclerosis Surveillance Registry (MSSR) from Veterans Affairs. In a 2018 survey of nearly 7,000 patients in the NARCOMS registry, 39.2% of patients older than 60 years were taking a DMT, including 44.5% of patients aged 61-70, 28.6% of patients aged 71-80, and 11% of patients aged 81 years and older. In comparison, about 62% of patients aged 41-50 years were taking DMT.

A 2019 survey of about 1,700 veterans in the MSSR found that 36.3% of patients older than 60 years were taking a DMT, including 41.1% of patients aged 61-70, 27.2% of patients aged 71-80, and 7.1% of patients aged 81 years and older. Among patients aged 41-50 years, more than 72% were taking a DMT. “The continued use of DMTs in the elderly may be the result of the perceived notion that disease inactivity is due to the effect of DMTs rather than the natural disease course with aging,” they said.

Dr. Zhang had no relevant disclosures. Coauthors disclosed consulting for and grant support from various pharmaceutical companies.

[email protected]

SOURCE: Zhang Y et al. ACTRIMS Forum 2020. Abstract P263.

WEST PALM BEACH, FLA. – Serum levels of glial fibrillary acidic protein (GFAP) may indicate disease severity and risk of attack in patients with neuromyelitis optica spectrum disorder (NMOSD), according to research presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Treatment with inebilizumab decreases serum GFAP concentrations and reduces the risk of an NMOSD attack, the investigators said.

In NMOSD, autoantibodies often target aquaporin-4, a protein expressed on astrocytes. This immune response destroys astrocytes and increases levels of GFAP in cerebrospinal fluid and serum. In the N-MOmentum trial, inebilizumab reduced the risk of attacks by 73%, compared with placebo, in patients with NMOSD. Bruce Cree, MD, PhD, professor of neurology at the University of California, San Francisco, Weill Institute for Neurosciences and colleagues analyzed the data from this trial to examine the relationship between serum GFAP concentrations and disease activity.

In the study, the investigators prospectively collected 1,260 serum samples from 215 participants, 25 healthy donors, and 23 patients with relapsing-remitting multiple sclerosis (MS). Serum GFAP concentration was measured using a single-molecule array assay. The researchers and an independent adjudication committee evaluated attacks during the 28-week randomized controlled study period using predefined criteria.

The median serum GFAP concentration was higher in patients with NMOSD (128.3 pg/mL) than in patients with relapsing-remitting MS (97.5 pg/mL) and healthy controls (73.3 pg/mL). At baseline, 29% of patients with NMOSD and 9% of patients with MS had a serum GFAP concentration that was three or more standard deviations above the mean level in healthy donors.

During the study, patients with a high baseline concentration of serum GFAP were three times more likely to have an adjudicated NMOSD attack than patients with lower serum GFAP concentrations. Concentrations of serum GFAP increased within 1 week of an adjudicated attack during the randomized controlled period. Furthermore, serum GFAP concentration was significantly higher in patients with major adjudicated attacks, compared with those who had minor adjudicated attacks. This finding was true for all organ domains, including for attacks that affected only the optic nerve.

Compared with placebo, inebilizumab reduced the risk of an adjudicated attack by 79% in patients with a normal baseline serum GFAP concentration and by 61% in patients with an elevated baseline serum GFAP concentration. The increase in serum GFAP concentration following an adjudicated attack was significant in patients receiving placebo, but not in patients receiving inebilizumab. Seven samples taken during an adjudicated attack from patients receiving inebilizumab had serum GFAP concentrations within the normal range. One sample taken during an attack from a patient receiving placebo had a serum GFAP concentration within the normal range. In addition, serum GFAP concentrations decreased from baseline among patients receiving inebilizumab who did not have an adjudicated attack.

“These observations suggest that serum GFAP could be a clinically useful biomarker of disease activity and increased attack risk in NMOSD,” said Dr. Cree and colleagues.

Viela Bio, which is developing inebilizumab, and MedImmune sponsored the study. Dr. Cree has received compensation for consulting services that he provided to Alexion, Atara, Biogen, EMD Serono, Novartis, and TG Therapeutics.

[email protected]

SOURCE: Hartung H et al. ACTRIMS 2020, Abstract P205.

WEST PALM BEACH, FLA. – Serum levels of glial fibrillary acidic protein (GFAP) may indicate disease severity and risk of attack in patients with neuromyelitis optica spectrum disorder (NMOSD), according to research presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Treatment with inebilizumab decreases serum GFAP concentrations and reduces the risk of an NMOSD attack, the investigators said.

In NMOSD, autoantibodies often target aquaporin-4, a protein expressed on astrocytes. This immune response destroys astrocytes and increases levels of GFAP in cerebrospinal fluid and serum. In the N-MOmentum trial, inebilizumab reduced the risk of attacks by 73%, compared with placebo, in patients with NMOSD. Bruce Cree, MD, PhD, professor of neurology at the University of California, San Francisco, Weill Institute for Neurosciences and colleagues analyzed the data from this trial to examine the relationship between serum GFAP concentrations and disease activity.

In the study, the investigators prospectively collected 1,260 serum samples from 215 participants, 25 healthy donors, and 23 patients with relapsing-remitting multiple sclerosis (MS). Serum GFAP concentration was measured using a single-molecule array assay. The researchers and an independent adjudication committee evaluated attacks during the 28-week randomized controlled study period using predefined criteria.

The median serum GFAP concentration was higher in patients with NMOSD (128.3 pg/mL) than in patients with relapsing-remitting MS (97.5 pg/mL) and healthy controls (73.3 pg/mL). At baseline, 29% of patients with NMOSD and 9% of patients with MS had a serum GFAP concentration that was three or more standard deviations above the mean level in healthy donors.

During the study, patients with a high baseline concentration of serum GFAP were three times more likely to have an adjudicated NMOSD attack than patients with lower serum GFAP concentrations. Concentrations of serum GFAP increased within 1 week of an adjudicated attack during the randomized controlled period. Furthermore, serum GFAP concentration was significantly higher in patients with major adjudicated attacks, compared with those who had minor adjudicated attacks. This finding was true for all organ domains, including for attacks that affected only the optic nerve.

Compared with placebo, inebilizumab reduced the risk of an adjudicated attack by 79% in patients with a normal baseline serum GFAP concentration and by 61% in patients with an elevated baseline serum GFAP concentration. The increase in serum GFAP concentration following an adjudicated attack was significant in patients receiving placebo, but not in patients receiving inebilizumab. Seven samples taken during an adjudicated attack from patients receiving inebilizumab had serum GFAP concentrations within the normal range. One sample taken during an attack from a patient receiving placebo had a serum GFAP concentration within the normal range. In addition, serum GFAP concentrations decreased from baseline among patients receiving inebilizumab who did not have an adjudicated attack.

“These observations suggest that serum GFAP could be a clinically useful biomarker of disease activity and increased attack risk in NMOSD,” said Dr. Cree and colleagues.

Viela Bio, which is developing inebilizumab, and MedImmune sponsored the study. Dr. Cree has received compensation for consulting services that he provided to Alexion, Atara, Biogen, EMD Serono, Novartis, and TG Therapeutics.

[email protected]

SOURCE: Hartung H et al. ACTRIMS 2020, Abstract P205.

WEST PALM BEACH, FLA. – Serum levels of glial fibrillary acidic protein (GFAP) may indicate disease severity and risk of attack in patients with neuromyelitis optica spectrum disorder (NMOSD), according to research presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. Treatment with inebilizumab decreases serum GFAP concentrations and reduces the risk of an NMOSD attack, the investigators said.

In NMOSD, autoantibodies often target aquaporin-4, a protein expressed on astrocytes. This immune response destroys astrocytes and increases levels of GFAP in cerebrospinal fluid and serum. In the N-MOmentum trial, inebilizumab reduced the risk of attacks by 73%, compared with placebo, in patients with NMOSD. Bruce Cree, MD, PhD, professor of neurology at the University of California, San Francisco, Weill Institute for Neurosciences and colleagues analyzed the data from this trial to examine the relationship between serum GFAP concentrations and disease activity.

In the study, the investigators prospectively collected 1,260 serum samples from 215 participants, 25 healthy donors, and 23 patients with relapsing-remitting multiple sclerosis (MS). Serum GFAP concentration was measured using a single-molecule array assay. The researchers and an independent adjudication committee evaluated attacks during the 28-week randomized controlled study period using predefined criteria.

The median serum GFAP concentration was higher in patients with NMOSD (128.3 pg/mL) than in patients with relapsing-remitting MS (97.5 pg/mL) and healthy controls (73.3 pg/mL). At baseline, 29% of patients with NMOSD and 9% of patients with MS had a serum GFAP concentration that was three or more standard deviations above the mean level in healthy donors.

During the study, patients with a high baseline concentration of serum GFAP were three times more likely to have an adjudicated NMOSD attack than patients with lower serum GFAP concentrations. Concentrations of serum GFAP increased within 1 week of an adjudicated attack during the randomized controlled period. Furthermore, serum GFAP concentration was significantly higher in patients with major adjudicated attacks, compared with those who had minor adjudicated attacks. This finding was true for all organ domains, including for attacks that affected only the optic nerve.

Compared with placebo, inebilizumab reduced the risk of an adjudicated attack by 79% in patients with a normal baseline serum GFAP concentration and by 61% in patients with an elevated baseline serum GFAP concentration. The increase in serum GFAP concentration following an adjudicated attack was significant in patients receiving placebo, but not in patients receiving inebilizumab. Seven samples taken during an adjudicated attack from patients receiving inebilizumab had serum GFAP concentrations within the normal range. One sample taken during an attack from a patient receiving placebo had a serum GFAP concentration within the normal range. In addition, serum GFAP concentrations decreased from baseline among patients receiving inebilizumab who did not have an adjudicated attack.

“These observations suggest that serum GFAP could be a clinically useful biomarker of disease activity and increased attack risk in NMOSD,” said Dr. Cree and colleagues.

Viela Bio, which is developing inebilizumab, and MedImmune sponsored the study. Dr. Cree has received compensation for consulting services that he provided to Alexion, Atara, Biogen, EMD Serono, Novartis, and TG Therapeutics.

[email protected]

SOURCE: Hartung H et al. ACTRIMS 2020, Abstract P205.