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American Academy of Neurology (AAN): Annual Meeting 2019
MS Highlights From the AAN & CMSC Annual Meetings
This supplement to Neurology Reviews compiles MS-related news briefs from the 2019 annual meetings of the American Academy of Neurology, held in Philadelphia in early May, and the Consortium of Multiple Sclerosis Centers, held in Seattle in late May.
This supplement to Neurology Reviews compiles MS-related news briefs from the 2019 annual meetings of the American Academy of Neurology, held in Philadelphia in early May, and the Consortium of Multiple Sclerosis Centers, held in Seattle in late May.
This supplement to Neurology Reviews compiles MS-related news briefs from the 2019 annual meetings of the American Academy of Neurology, held in Philadelphia in early May, and the Consortium of Multiple Sclerosis Centers, held in Seattle in late May.
Tranexamic acid may not improve neurologic outcomes in patients with TBI
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. For patients with TBI and intracranial hemorrhage (ICH), however, treatment with a 2-gram bolus of tranexamic acid within 42 minutes of injury significantly improves the rate of 28-day survival. Tranexamic acid therefore “is the first therapeutic with evidence for benefit in acute TBI,” said Susan Rowell, MD, trauma medical director at Duke University in Durham, North Carolina.
No effective treatment is available for TBI, which is a major cause of death after trauma. In 2010, the CRASH-2 trial (Lancet. 2010 Jul 03;376[9734]:23-32), suggested that tranexamic acid, a lysine analogue that decreases the breakdown of clots, safely reduced the rate of death from hemorrhage in patients with trauma and bleeding. Patients treated within 1 hour of injury were significantly more likely to survive than those treated at 1 hour or more after injury.
Two small, prospective trials failed to show that tranexamic acid reduced in-hospital mortality, improved neurologic function at discharge, or reduced the progression of ICH. A meta-analysis of both trials, however, showed a trend toward a benefit of treatment with this therapy.
A multicenter, prehospital trial
Dr. Rowell and colleagues hypothesized that prehospital administration of tranexamic acid to patients with moderate to severe TBI early after injury would increase the likelihood of a favorable neurologic outcome. Between March 2015 and March 2017, they enrolled 1,280 participants in a multicenter, prehospital trial. Eligible participants had moderate to severe TBI, were not in shock (as evidenced by a systolic blood pressure greater than 90 mm Hg before randomization), and were enrolled within 2 hours of injury.
Patients were randomized to one of three treatment arms and followed for 6 months. The first treatment arm received a 1-gram bolus of tranexamic acid before hospital admission and an 8-hour, 1-gram infusion of tranexamic acid in the hospital. The second arm received a 2-gram bolus of tranexamic acid before hospital admission and a placebo infusion in the hospital. The third arm received a placebo bolus and placebo infusion. Paramedics and participants were blinded to treatment assignment. The trial was conducted at 20 hospitals and 39 emergency medical services agencies in the United States and Canada.
The study’s primary outcome was functional neurologic outcome at 6 months, as measured by the Glasgow Outcomes Scale – Extended (GOSE). The investigators dichotomized results into favorable and poor categories. Other prespecified outcomes included early and late mortality, the disability rating scale (DRS), and progression of ICH.
Treatment was administered early
The researchers identified 1,280 eligible patients, of whom 1,063 were randomized. The modified intention-to-treat analysis included 309 participants in the placebo group, 312 in the bolus-maintenance group (the 1-gram group), and 345 in the bolus-only group (the 2-gram group). The population’s average age was approximately 42 years, and 75% of the sample was male. About half of the patients had a Glasgow Coma Scale score between 3 and 8. Injury severity and prehospital care were similar among the groups.
The researchers provided the drug infusion at an average of 0.7 hours (42 minutes) after injury, “which is actually quite early,” said Dr. Rowell. They observed few infusion-related deviations, and the entire bolus was infused in about 95% of patients. Approximately 70% of patients received the full 8-hour infusion. This result was influenced partly by stopping rules and by providers who requested unblinding to give open-label tranexamic acid. Overall, 57% of patients in the trial had an ICH on head CT, which was approximately the proportion that the researchers had anticipated.
Dr. Rowell and colleagues completed the 6-month follow-up for 85% of patients. They saw no difference in the 6-month neurologic outcome between the group of all patients who received tranexamic acid and those who received placebo. The investigators also saw no differences between groups in early and late mortality and the DRS.
About half of patients with ICH were evaluated for progression. Progression occurred in 20% of the placebo arm, 17% of the bolus-maintenance arm, and 15% of the bolus-only arm. The differences between groups were not statistically significant. Participants in the bolus-only group, however, were significantly less likely to die, compared with the placebo and the bolus-maintenance groups. The odds ratio of death for the bolus-only group, compared with the others, was about 0.5. The absolute mortality rate for the placebo and bolus-maintenance groups was 17%, compared with 12% for the bolus-only group. Most deaths were attributable to TBI, and few patients died of exsanguination.
In addition, the bolus-only group also had improved long-term neurologic outcome, as assessed by the 6-month DRS and the 6-month GOSE, compared with the bolus maintenance group.
Among patients with ICH, survival increased by approximately 12% at 10 hours after injury in the bolus-only group, compared with the bolus-maintenance and placebo groups. This difference persisted throughout the follow-up period, said Dr. Rowell.
Among predefined major adverse events, seizure-like activity occurred in 5% of the bolus-only group, compared with 2% of the placebo and bolus-maintenance groups. The researchers found no significant differences in any thrombotic event between the bolus-only group and the placebo group.
The study was sponsored by University of Washington, Seattle. Collaborators included the National Heart, Lung, and Blood Institute; the U.S. Army Medical Research and Development Command; and the American Heart Association. Dr. Rowell had no relevant disclosures.
SOURCE: Rowell S et al. AAN 2019, Abstract.
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. For patients with TBI and intracranial hemorrhage (ICH), however, treatment with a 2-gram bolus of tranexamic acid within 42 minutes of injury significantly improves the rate of 28-day survival. Tranexamic acid therefore “is the first therapeutic with evidence for benefit in acute TBI,” said Susan Rowell, MD, trauma medical director at Duke University in Durham, North Carolina.
No effective treatment is available for TBI, which is a major cause of death after trauma. In 2010, the CRASH-2 trial (Lancet. 2010 Jul 03;376[9734]:23-32), suggested that tranexamic acid, a lysine analogue that decreases the breakdown of clots, safely reduced the rate of death from hemorrhage in patients with trauma and bleeding. Patients treated within 1 hour of injury were significantly more likely to survive than those treated at 1 hour or more after injury.
Two small, prospective trials failed to show that tranexamic acid reduced in-hospital mortality, improved neurologic function at discharge, or reduced the progression of ICH. A meta-analysis of both trials, however, showed a trend toward a benefit of treatment with this therapy.
A multicenter, prehospital trial
Dr. Rowell and colleagues hypothesized that prehospital administration of tranexamic acid to patients with moderate to severe TBI early after injury would increase the likelihood of a favorable neurologic outcome. Between March 2015 and March 2017, they enrolled 1,280 participants in a multicenter, prehospital trial. Eligible participants had moderate to severe TBI, were not in shock (as evidenced by a systolic blood pressure greater than 90 mm Hg before randomization), and were enrolled within 2 hours of injury.
Patients were randomized to one of three treatment arms and followed for 6 months. The first treatment arm received a 1-gram bolus of tranexamic acid before hospital admission and an 8-hour, 1-gram infusion of tranexamic acid in the hospital. The second arm received a 2-gram bolus of tranexamic acid before hospital admission and a placebo infusion in the hospital. The third arm received a placebo bolus and placebo infusion. Paramedics and participants were blinded to treatment assignment. The trial was conducted at 20 hospitals and 39 emergency medical services agencies in the United States and Canada.
The study’s primary outcome was functional neurologic outcome at 6 months, as measured by the Glasgow Outcomes Scale – Extended (GOSE). The investigators dichotomized results into favorable and poor categories. Other prespecified outcomes included early and late mortality, the disability rating scale (DRS), and progression of ICH.
Treatment was administered early
The researchers identified 1,280 eligible patients, of whom 1,063 were randomized. The modified intention-to-treat analysis included 309 participants in the placebo group, 312 in the bolus-maintenance group (the 1-gram group), and 345 in the bolus-only group (the 2-gram group). The population’s average age was approximately 42 years, and 75% of the sample was male. About half of the patients had a Glasgow Coma Scale score between 3 and 8. Injury severity and prehospital care were similar among the groups.
The researchers provided the drug infusion at an average of 0.7 hours (42 minutes) after injury, “which is actually quite early,” said Dr. Rowell. They observed few infusion-related deviations, and the entire bolus was infused in about 95% of patients. Approximately 70% of patients received the full 8-hour infusion. This result was influenced partly by stopping rules and by providers who requested unblinding to give open-label tranexamic acid. Overall, 57% of patients in the trial had an ICH on head CT, which was approximately the proportion that the researchers had anticipated.
Dr. Rowell and colleagues completed the 6-month follow-up for 85% of patients. They saw no difference in the 6-month neurologic outcome between the group of all patients who received tranexamic acid and those who received placebo. The investigators also saw no differences between groups in early and late mortality and the DRS.
About half of patients with ICH were evaluated for progression. Progression occurred in 20% of the placebo arm, 17% of the bolus-maintenance arm, and 15% of the bolus-only arm. The differences between groups were not statistically significant. Participants in the bolus-only group, however, were significantly less likely to die, compared with the placebo and the bolus-maintenance groups. The odds ratio of death for the bolus-only group, compared with the others, was about 0.5. The absolute mortality rate for the placebo and bolus-maintenance groups was 17%, compared with 12% for the bolus-only group. Most deaths were attributable to TBI, and few patients died of exsanguination.
In addition, the bolus-only group also had improved long-term neurologic outcome, as assessed by the 6-month DRS and the 6-month GOSE, compared with the bolus maintenance group.
Among patients with ICH, survival increased by approximately 12% at 10 hours after injury in the bolus-only group, compared with the bolus-maintenance and placebo groups. This difference persisted throughout the follow-up period, said Dr. Rowell.
Among predefined major adverse events, seizure-like activity occurred in 5% of the bolus-only group, compared with 2% of the placebo and bolus-maintenance groups. The researchers found no significant differences in any thrombotic event between the bolus-only group and the placebo group.
The study was sponsored by University of Washington, Seattle. Collaborators included the National Heart, Lung, and Blood Institute; the U.S. Army Medical Research and Development Command; and the American Heart Association. Dr. Rowell had no relevant disclosures.
SOURCE: Rowell S et al. AAN 2019, Abstract.
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. For patients with TBI and intracranial hemorrhage (ICH), however, treatment with a 2-gram bolus of tranexamic acid within 42 minutes of injury significantly improves the rate of 28-day survival. Tranexamic acid therefore “is the first therapeutic with evidence for benefit in acute TBI,” said Susan Rowell, MD, trauma medical director at Duke University in Durham, North Carolina.
No effective treatment is available for TBI, which is a major cause of death after trauma. In 2010, the CRASH-2 trial (Lancet. 2010 Jul 03;376[9734]:23-32), suggested that tranexamic acid, a lysine analogue that decreases the breakdown of clots, safely reduced the rate of death from hemorrhage in patients with trauma and bleeding. Patients treated within 1 hour of injury were significantly more likely to survive than those treated at 1 hour or more after injury.
Two small, prospective trials failed to show that tranexamic acid reduced in-hospital mortality, improved neurologic function at discharge, or reduced the progression of ICH. A meta-analysis of both trials, however, showed a trend toward a benefit of treatment with this therapy.
A multicenter, prehospital trial
Dr. Rowell and colleagues hypothesized that prehospital administration of tranexamic acid to patients with moderate to severe TBI early after injury would increase the likelihood of a favorable neurologic outcome. Between March 2015 and March 2017, they enrolled 1,280 participants in a multicenter, prehospital trial. Eligible participants had moderate to severe TBI, were not in shock (as evidenced by a systolic blood pressure greater than 90 mm Hg before randomization), and were enrolled within 2 hours of injury.
Patients were randomized to one of three treatment arms and followed for 6 months. The first treatment arm received a 1-gram bolus of tranexamic acid before hospital admission and an 8-hour, 1-gram infusion of tranexamic acid in the hospital. The second arm received a 2-gram bolus of tranexamic acid before hospital admission and a placebo infusion in the hospital. The third arm received a placebo bolus and placebo infusion. Paramedics and participants were blinded to treatment assignment. The trial was conducted at 20 hospitals and 39 emergency medical services agencies in the United States and Canada.
The study’s primary outcome was functional neurologic outcome at 6 months, as measured by the Glasgow Outcomes Scale – Extended (GOSE). The investigators dichotomized results into favorable and poor categories. Other prespecified outcomes included early and late mortality, the disability rating scale (DRS), and progression of ICH.
Treatment was administered early
The researchers identified 1,280 eligible patients, of whom 1,063 were randomized. The modified intention-to-treat analysis included 309 participants in the placebo group, 312 in the bolus-maintenance group (the 1-gram group), and 345 in the bolus-only group (the 2-gram group). The population’s average age was approximately 42 years, and 75% of the sample was male. About half of the patients had a Glasgow Coma Scale score between 3 and 8. Injury severity and prehospital care were similar among the groups.
The researchers provided the drug infusion at an average of 0.7 hours (42 minutes) after injury, “which is actually quite early,” said Dr. Rowell. They observed few infusion-related deviations, and the entire bolus was infused in about 95% of patients. Approximately 70% of patients received the full 8-hour infusion. This result was influenced partly by stopping rules and by providers who requested unblinding to give open-label tranexamic acid. Overall, 57% of patients in the trial had an ICH on head CT, which was approximately the proportion that the researchers had anticipated.
Dr. Rowell and colleagues completed the 6-month follow-up for 85% of patients. They saw no difference in the 6-month neurologic outcome between the group of all patients who received tranexamic acid and those who received placebo. The investigators also saw no differences between groups in early and late mortality and the DRS.
About half of patients with ICH were evaluated for progression. Progression occurred in 20% of the placebo arm, 17% of the bolus-maintenance arm, and 15% of the bolus-only arm. The differences between groups were not statistically significant. Participants in the bolus-only group, however, were significantly less likely to die, compared with the placebo and the bolus-maintenance groups. The odds ratio of death for the bolus-only group, compared with the others, was about 0.5. The absolute mortality rate for the placebo and bolus-maintenance groups was 17%, compared with 12% for the bolus-only group. Most deaths were attributable to TBI, and few patients died of exsanguination.
In addition, the bolus-only group also had improved long-term neurologic outcome, as assessed by the 6-month DRS and the 6-month GOSE, compared with the bolus maintenance group.
Among patients with ICH, survival increased by approximately 12% at 10 hours after injury in the bolus-only group, compared with the bolus-maintenance and placebo groups. This difference persisted throughout the follow-up period, said Dr. Rowell.
Among predefined major adverse events, seizure-like activity occurred in 5% of the bolus-only group, compared with 2% of the placebo and bolus-maintenance groups. The researchers found no significant differences in any thrombotic event between the bolus-only group and the placebo group.
The study was sponsored by University of Washington, Seattle. Collaborators included the National Heart, Lung, and Blood Institute; the U.S. Army Medical Research and Development Command; and the American Heart Association. Dr. Rowell had no relevant disclosures.
SOURCE: Rowell S et al. AAN 2019, Abstract.
REPORTING FROM AAN 2019
Key clinical point: Early administration of tranexamic acid after TBI does not improve neurologic outcome at 6 months.
Major finding: Patients with TBI and ICH who received a 2-g bolus of tranexamic acid had a 50% lower rate of mortality.
Study details: A multicenter, prehospital trial that enrolled 1,063 patients with moderate to severe TBI.
Disclosures: The study was sponsored by University of Washington, Seattle. Collaborators included the National Heart, Lung, and Blood Institute; the U.S. Army Medical Research and Development Command; and the American Heart Association. Dr. Rowell had no relevant disclosures.
Source: Rowell S et al. AAN 2019, Abstract.
Imaging predicts early postural instability in Parkinson’s disease
PHILADELPHIA – Diffusion-weighted MRI and the presence of at least five of seven clinical features may prove useful for determining which newly diagnosed patients with Parkinson’s disease are likely to have rapidly progressive disease, Frank M. Skidmore, MD, reported at the annual meeting of the American Academy of Neurology.
Patients with gray matter and axonal disease on initial imaging were found to have more aggressive disease associated with early gait dysfunction than were patients with primarily white matter and axonal disease, said Dr. Skidmore, associate professor of neurology at the University of Alabama, Birmingham.
Diffusion-weighted imaging provides a way to assess cellular fluid partitioning and directional information in gray and white matter. Thus, it has the potential to identify brainstem pathology that is associated with disease progression, he said. “Our approach provides a pathway towards using MR to detect early, prognostic, neurodegenerative changes in diseases of the brain.”
Dr. Skidmore and colleagues performed diffusion-weighted imaging on 101 patients with newly diagnosed Parkinson’s disease and 56 healthy controls. They found that Parkinson’s disease was associated with altered radial diffusion in white matter. Changes were observed mainly in the striatonigral tract and the substantia nigra. The investigators also noted atrophy in the cerebellar peduncle among patients with Parkinson’s disease.
At baseline, the patients who went on to have subsequent development of early postural instability and gait dysfunction had decreased intracellular fluid partitioning in the substantia nigra and the mesencephalic locomotor region, which are predominantly gray matter regions. These participants had a lower orientation diffusion index (ODI) and a lower estimate of cellularity, Dr. Skidmore said.
The researchers defined early gait dysfunction as the achievement of a Hoehn and Yahr score of 3 at least once while on medication during the first 5 years after Parkinson’s disease diagnosis. Follow-up was at least 5 years in 79 of the patients.
To identify clinical features associated with early postural instability and gait difficulty, the investigators examined data for 301 patients. In this population, Dr. Skidmore and colleagues identified 218 patients whose Hoehn and Yahr scores never exceeded 2 and 83 patients with at least one Hoehn and Yahr score of 3 or more. Using Bonferroni correction, they examined Unified Parkinson’s Disease Rating Scale (UPDRS) data for all patients to identify significant differences between these two groups. Seven items distinguished patients who developed early postural instability and gait difficulty. They included lightheadedness, fatigue, difficulty walking, ability to rise from a chair, and postural problems. The seven-item scale was superior to the Unified Parkinson’s Disease Rating Scale (UPDRS) at predicting which newly diagnosed patients would develop early postural and gait difficulties
SOURCE: Skidmore F et al. AANN 2019, Abstract S41.004.
PHILADELPHIA – Diffusion-weighted MRI and the presence of at least five of seven clinical features may prove useful for determining which newly diagnosed patients with Parkinson’s disease are likely to have rapidly progressive disease, Frank M. Skidmore, MD, reported at the annual meeting of the American Academy of Neurology.
Patients with gray matter and axonal disease on initial imaging were found to have more aggressive disease associated with early gait dysfunction than were patients with primarily white matter and axonal disease, said Dr. Skidmore, associate professor of neurology at the University of Alabama, Birmingham.
Diffusion-weighted imaging provides a way to assess cellular fluid partitioning and directional information in gray and white matter. Thus, it has the potential to identify brainstem pathology that is associated with disease progression, he said. “Our approach provides a pathway towards using MR to detect early, prognostic, neurodegenerative changes in diseases of the brain.”
Dr. Skidmore and colleagues performed diffusion-weighted imaging on 101 patients with newly diagnosed Parkinson’s disease and 56 healthy controls. They found that Parkinson’s disease was associated with altered radial diffusion in white matter. Changes were observed mainly in the striatonigral tract and the substantia nigra. The investigators also noted atrophy in the cerebellar peduncle among patients with Parkinson’s disease.
At baseline, the patients who went on to have subsequent development of early postural instability and gait dysfunction had decreased intracellular fluid partitioning in the substantia nigra and the mesencephalic locomotor region, which are predominantly gray matter regions. These participants had a lower orientation diffusion index (ODI) and a lower estimate of cellularity, Dr. Skidmore said.
The researchers defined early gait dysfunction as the achievement of a Hoehn and Yahr score of 3 at least once while on medication during the first 5 years after Parkinson’s disease diagnosis. Follow-up was at least 5 years in 79 of the patients.
To identify clinical features associated with early postural instability and gait difficulty, the investigators examined data for 301 patients. In this population, Dr. Skidmore and colleagues identified 218 patients whose Hoehn and Yahr scores never exceeded 2 and 83 patients with at least one Hoehn and Yahr score of 3 or more. Using Bonferroni correction, they examined Unified Parkinson’s Disease Rating Scale (UPDRS) data for all patients to identify significant differences between these two groups. Seven items distinguished patients who developed early postural instability and gait difficulty. They included lightheadedness, fatigue, difficulty walking, ability to rise from a chair, and postural problems. The seven-item scale was superior to the Unified Parkinson’s Disease Rating Scale (UPDRS) at predicting which newly diagnosed patients would develop early postural and gait difficulties
SOURCE: Skidmore F et al. AANN 2019, Abstract S41.004.
PHILADELPHIA – Diffusion-weighted MRI and the presence of at least five of seven clinical features may prove useful for determining which newly diagnosed patients with Parkinson’s disease are likely to have rapidly progressive disease, Frank M. Skidmore, MD, reported at the annual meeting of the American Academy of Neurology.
Patients with gray matter and axonal disease on initial imaging were found to have more aggressive disease associated with early gait dysfunction than were patients with primarily white matter and axonal disease, said Dr. Skidmore, associate professor of neurology at the University of Alabama, Birmingham.
Diffusion-weighted imaging provides a way to assess cellular fluid partitioning and directional information in gray and white matter. Thus, it has the potential to identify brainstem pathology that is associated with disease progression, he said. “Our approach provides a pathway towards using MR to detect early, prognostic, neurodegenerative changes in diseases of the brain.”
Dr. Skidmore and colleagues performed diffusion-weighted imaging on 101 patients with newly diagnosed Parkinson’s disease and 56 healthy controls. They found that Parkinson’s disease was associated with altered radial diffusion in white matter. Changes were observed mainly in the striatonigral tract and the substantia nigra. The investigators also noted atrophy in the cerebellar peduncle among patients with Parkinson’s disease.
At baseline, the patients who went on to have subsequent development of early postural instability and gait dysfunction had decreased intracellular fluid partitioning in the substantia nigra and the mesencephalic locomotor region, which are predominantly gray matter regions. These participants had a lower orientation diffusion index (ODI) and a lower estimate of cellularity, Dr. Skidmore said.
The researchers defined early gait dysfunction as the achievement of a Hoehn and Yahr score of 3 at least once while on medication during the first 5 years after Parkinson’s disease diagnosis. Follow-up was at least 5 years in 79 of the patients.
To identify clinical features associated with early postural instability and gait difficulty, the investigators examined data for 301 patients. In this population, Dr. Skidmore and colleagues identified 218 patients whose Hoehn and Yahr scores never exceeded 2 and 83 patients with at least one Hoehn and Yahr score of 3 or more. Using Bonferroni correction, they examined Unified Parkinson’s Disease Rating Scale (UPDRS) data for all patients to identify significant differences between these two groups. Seven items distinguished patients who developed early postural instability and gait difficulty. They included lightheadedness, fatigue, difficulty walking, ability to rise from a chair, and postural problems. The seven-item scale was superior to the Unified Parkinson’s Disease Rating Scale (UPDRS) at predicting which newly diagnosed patients would develop early postural and gait difficulties
SOURCE: Skidmore F et al. AANN 2019, Abstract S41.004.
REPORTING FROM AAN 2019
Mutant huntingtin and neurofilament light are potential biomarkers in Huntington’s disease
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. These biomarkers appear to reflect the earliest detectable changes in the natural history of Huntington’s disease, but the longitudinal prognostic value of changes in these biomarkers requires further investigation, the researchers said.
Huntington’s disease has a long prodromal phase and is associated with long survival. Investigators still need well-validated biomarkers of disease progression, prognosis, and pharmacodynamics to aid drug development, said Filipe B. Rodrigues, MD, clinical research fellow at University College London. After several years of study, Dr. Rodrigues and colleagues found mutant huntingtin and neurofilament light (NfL) to be the most promising potential biomarkers in Huntington’s disease. They sought to understand how these two biomarkers compare with each other, what their predictive ability is, and how they change longitudinally.
To this end, Dr. Rodrigues and colleagues designed the HD-CSF study, a prospective, observational, longitudinal cohort study with a 2-year follow-up. They recruited 20 healthy controls, 20 patients with premanifest Huntington’s disease, and 40 patients with manifest Huntington’s disease. All participants underwent regular clinical assessments and standardized collections of cerebrospinal fluid (CSF) and blood. They also had the option of undergoing brain MRI scans.
The investigators analyzed their data using multiple linear regression models, Pearson’s correlations, receiver operating characteristic curves, and sample size calculations. They used an event-based model to evaluate the temporal sequence of changes in Huntington’s disease-related biomarkers.
Dr. Rodrigues and colleagues first observed that all three biomarkers successfully distinguished between healthy controls, patients with premanifest Huntington’s disease, and patients with Huntington’s disease. Mutant huntingtin, the pathogenic agent in Huntington’s disease, discriminated perfectly between healthy controls and mutation carriers, as the researchers had expected. CSF and plasma levels of NfL also discriminated well between healthy controls and mutation carriers. These biomarkers had areas under the ROC curve greater than 0.9. NfL in plasma and CSF also distinguished well between patients with premanifest Huntington’s disease and those with manifest Huntington’s disease, with areas under the curve greater than 0.9. Their discriminative ability in this regard was significantly better than that of mutant huntingtin.
When the researchers examined the relationship between the three biomarkers, they found that CSF levels of NfL were strongly correlated in a linear fashion with plasma levels of NfL. CSF levels of mutant huntingtin were moderately associated with CSF levels of NfL.
Levels of all three biomarkers increased significantly as the disease progressed and were associated with all clinical scales and imaging measures. CSF and plasma levels of NfL had superior predictive ability for clinical and imaging measures, compared with mutant huntingtin. CSF and plasma NfL were associated with brain volume, but mutant huntingtin was not.
All three biomarkers were stable during a 6-week period. Dr. Rodrigues and colleagues calculated sample sizes for a two-arm interventional trial involving various hypothetical therapeutic effects. They found that the required sample sizes were small enough to be incorporated easily into ongoing and future clinical trials.
In silico modeling suggested among the markers measured in the HD-CSF study, the three biofluid biomarkers were the first factors to be altered in the course of Huntington’s disease. Alterations in the biomarkers were followed by changes in imaging markers, and then by changes in clinical markers (for example, motor and cognitive function).
Finally, Dr. Rodrigues and colleagues found preliminary evidence that levels of NfL in CSF and plasma increase over time at different rates in patients with Huntington’s disease, compared with healthy controls. NfL appears to be more useful than mutant huntingtin for evaluating the rate of disease progression than for gauging response to treatment, said Dr. Rodrigues. “If [we] can prove that we can assess response to treatment by measuring NfL, I think that would be great.”
The investigators are currently analyzing the longitudinal predictive value of changes in these biomarkers. They also have begun analyzing other markers such as tau and brain-derived neurotrophic factor.
This study was funded by the Medical Research Council UK, the CHDI Foundation, and F. Hoffmann-La Roche.
This article was updated 6/18/19.
SOURCE: Rodrigues FB et al. AAN 2019, Abstract S16.003.
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. These biomarkers appear to reflect the earliest detectable changes in the natural history of Huntington’s disease, but the longitudinal prognostic value of changes in these biomarkers requires further investigation, the researchers said.
Huntington’s disease has a long prodromal phase and is associated with long survival. Investigators still need well-validated biomarkers of disease progression, prognosis, and pharmacodynamics to aid drug development, said Filipe B. Rodrigues, MD, clinical research fellow at University College London. After several years of study, Dr. Rodrigues and colleagues found mutant huntingtin and neurofilament light (NfL) to be the most promising potential biomarkers in Huntington’s disease. They sought to understand how these two biomarkers compare with each other, what their predictive ability is, and how they change longitudinally.
To this end, Dr. Rodrigues and colleagues designed the HD-CSF study, a prospective, observational, longitudinal cohort study with a 2-year follow-up. They recruited 20 healthy controls, 20 patients with premanifest Huntington’s disease, and 40 patients with manifest Huntington’s disease. All participants underwent regular clinical assessments and standardized collections of cerebrospinal fluid (CSF) and blood. They also had the option of undergoing brain MRI scans.
The investigators analyzed their data using multiple linear regression models, Pearson’s correlations, receiver operating characteristic curves, and sample size calculations. They used an event-based model to evaluate the temporal sequence of changes in Huntington’s disease-related biomarkers.
Dr. Rodrigues and colleagues first observed that all three biomarkers successfully distinguished between healthy controls, patients with premanifest Huntington’s disease, and patients with Huntington’s disease. Mutant huntingtin, the pathogenic agent in Huntington’s disease, discriminated perfectly between healthy controls and mutation carriers, as the researchers had expected. CSF and plasma levels of NfL also discriminated well between healthy controls and mutation carriers. These biomarkers had areas under the ROC curve greater than 0.9. NfL in plasma and CSF also distinguished well between patients with premanifest Huntington’s disease and those with manifest Huntington’s disease, with areas under the curve greater than 0.9. Their discriminative ability in this regard was significantly better than that of mutant huntingtin.
When the researchers examined the relationship between the three biomarkers, they found that CSF levels of NfL were strongly correlated in a linear fashion with plasma levels of NfL. CSF levels of mutant huntingtin were moderately associated with CSF levels of NfL.
Levels of all three biomarkers increased significantly as the disease progressed and were associated with all clinical scales and imaging measures. CSF and plasma levels of NfL had superior predictive ability for clinical and imaging measures, compared with mutant huntingtin. CSF and plasma NfL were associated with brain volume, but mutant huntingtin was not.
All three biomarkers were stable during a 6-week period. Dr. Rodrigues and colleagues calculated sample sizes for a two-arm interventional trial involving various hypothetical therapeutic effects. They found that the required sample sizes were small enough to be incorporated easily into ongoing and future clinical trials.
In silico modeling suggested among the markers measured in the HD-CSF study, the three biofluid biomarkers were the first factors to be altered in the course of Huntington’s disease. Alterations in the biomarkers were followed by changes in imaging markers, and then by changes in clinical markers (for example, motor and cognitive function).
Finally, Dr. Rodrigues and colleagues found preliminary evidence that levels of NfL in CSF and plasma increase over time at different rates in patients with Huntington’s disease, compared with healthy controls. NfL appears to be more useful than mutant huntingtin for evaluating the rate of disease progression than for gauging response to treatment, said Dr. Rodrigues. “If [we] can prove that we can assess response to treatment by measuring NfL, I think that would be great.”
The investigators are currently analyzing the longitudinal predictive value of changes in these biomarkers. They also have begun analyzing other markers such as tau and brain-derived neurotrophic factor.
This study was funded by the Medical Research Council UK, the CHDI Foundation, and F. Hoffmann-La Roche.
This article was updated 6/18/19.
SOURCE: Rodrigues FB et al. AAN 2019, Abstract S16.003.
PHILADELPHIA – according to an investigation presented at the annual meeting of the American Academy of Neurology. These biomarkers appear to reflect the earliest detectable changes in the natural history of Huntington’s disease, but the longitudinal prognostic value of changes in these biomarkers requires further investigation, the researchers said.
Huntington’s disease has a long prodromal phase and is associated with long survival. Investigators still need well-validated biomarkers of disease progression, prognosis, and pharmacodynamics to aid drug development, said Filipe B. Rodrigues, MD, clinical research fellow at University College London. After several years of study, Dr. Rodrigues and colleagues found mutant huntingtin and neurofilament light (NfL) to be the most promising potential biomarkers in Huntington’s disease. They sought to understand how these two biomarkers compare with each other, what their predictive ability is, and how they change longitudinally.
To this end, Dr. Rodrigues and colleagues designed the HD-CSF study, a prospective, observational, longitudinal cohort study with a 2-year follow-up. They recruited 20 healthy controls, 20 patients with premanifest Huntington’s disease, and 40 patients with manifest Huntington’s disease. All participants underwent regular clinical assessments and standardized collections of cerebrospinal fluid (CSF) and blood. They also had the option of undergoing brain MRI scans.
The investigators analyzed their data using multiple linear regression models, Pearson’s correlations, receiver operating characteristic curves, and sample size calculations. They used an event-based model to evaluate the temporal sequence of changes in Huntington’s disease-related biomarkers.
Dr. Rodrigues and colleagues first observed that all three biomarkers successfully distinguished between healthy controls, patients with premanifest Huntington’s disease, and patients with Huntington’s disease. Mutant huntingtin, the pathogenic agent in Huntington’s disease, discriminated perfectly between healthy controls and mutation carriers, as the researchers had expected. CSF and plasma levels of NfL also discriminated well between healthy controls and mutation carriers. These biomarkers had areas under the ROC curve greater than 0.9. NfL in plasma and CSF also distinguished well between patients with premanifest Huntington’s disease and those with manifest Huntington’s disease, with areas under the curve greater than 0.9. Their discriminative ability in this regard was significantly better than that of mutant huntingtin.
When the researchers examined the relationship between the three biomarkers, they found that CSF levels of NfL were strongly correlated in a linear fashion with plasma levels of NfL. CSF levels of mutant huntingtin were moderately associated with CSF levels of NfL.
Levels of all three biomarkers increased significantly as the disease progressed and were associated with all clinical scales and imaging measures. CSF and plasma levels of NfL had superior predictive ability for clinical and imaging measures, compared with mutant huntingtin. CSF and plasma NfL were associated with brain volume, but mutant huntingtin was not.
All three biomarkers were stable during a 6-week period. Dr. Rodrigues and colleagues calculated sample sizes for a two-arm interventional trial involving various hypothetical therapeutic effects. They found that the required sample sizes were small enough to be incorporated easily into ongoing and future clinical trials.
In silico modeling suggested among the markers measured in the HD-CSF study, the three biofluid biomarkers were the first factors to be altered in the course of Huntington’s disease. Alterations in the biomarkers were followed by changes in imaging markers, and then by changes in clinical markers (for example, motor and cognitive function).
Finally, Dr. Rodrigues and colleagues found preliminary evidence that levels of NfL in CSF and plasma increase over time at different rates in patients with Huntington’s disease, compared with healthy controls. NfL appears to be more useful than mutant huntingtin for evaluating the rate of disease progression than for gauging response to treatment, said Dr. Rodrigues. “If [we] can prove that we can assess response to treatment by measuring NfL, I think that would be great.”
The investigators are currently analyzing the longitudinal predictive value of changes in these biomarkers. They also have begun analyzing other markers such as tau and brain-derived neurotrophic factor.
This study was funded by the Medical Research Council UK, the CHDI Foundation, and F. Hoffmann-La Roche.
This article was updated 6/18/19.
SOURCE: Rodrigues FB et al. AAN 2019, Abstract S16.003.
REPORTING FROM AAN 2019
Key clinical point: Mutant huntingtin and plasma and cerebrospinal fluid levels of neurofilament light are useful potential biomarkers in Huntington’s disease.
Major finding: Levels of neurofilament light in plasma are correlated with those in cerebrospinal fluid.
Study details: A prospective, observational, longitudinal cohort study including 80 participants with and without Huntington’s disease.
Disclosures: This study was funded by the Medical Research Council UK, the CHDI Foundation, and F. Hoffmann-La Roche.
Source: Rodrigues FB et al. AAN 2019, Abstract S16.003.
Evobrutinib demonstrates efficacy, safety in relapsing MS
PHILADELPHIA – Higher doses of evobrutinib significantly improved that study endpoint, and were associated with numerical decreases in the annualized relapse rate versus placebo, according to a report presented at the annual meeting of the American Academy of Neurology.
Some grade 3-4 transaminase elevations were associated with evobrutinib, though these were asymptomatic, reversible, and occurred within the first 24 weeks of the 48-week treatment period, said investigator Xavier Montalban, MD, PhD, chairman and director of the department of neurology-neuroimmunology at Vall d’Hebron University Hospital in Barcelona.
“Overall, we do believe the results of the phase 2 study support further clinical development in relapsing multiple sclerosis,” Dr. Montalban said.
This study builds on previous observations that BTK plays an important role in immune functions related to the pathogenesis of MS, Dr. Montalban said. Evobrutinib in particular impacts B cells and myeloid cells along with pathways involved in MS-related inflammation, he added.
In the current randomized, phase 2, placebo-controlled study, 267 patients with relapsing MS were randomized to one of five arms: placebo, evobrutinib 25-mg daily, 75-mg daily, or 75-mg twice daily, or an open-label reference arm of dimethyl fumarate 240 mg twice daily.
Dr. Montalban presented the results of a 24-week treatment period plus a 24-week blinded extension period, during which placebo-treated patients crossed over to evobrutinib 25 mg daily, for a total of 48 weeks of treatment.
The primary study endpoint was the cumulative number of MRI-assessed T1 Gd+ lesions at weeks 12, 16, 20, and 24. Dr. Montalban said that evobrutinib in the two 75-mg arms significantly reduced enhancing lesions versus placebo over weeks 12-24, with lesion rate ratios of 0.30 for the 75-mg daily arm, and 0.44 for the 75-mg twice-daily arm, with unadjusted P values of .002 and .031, respectively. By contrast, the evobrutinib 25-mg arm did not significantly reduce the cumulative number of enhancing lesions versus placebo over that time period.
There was a rapid reduction in the mean number of enhancing lesions from baseline to the week-12 visit for those 75-mg dosing arms, which was sustained through subsequent visits, Dr. Montalban said.
There were no significant differences between arms in the annualized relapse rate at week 24, a key secondary endpoint of the study, according to the investigators. The annualized relapse rate was 0.37 for placebo, 0.57 for evobrutinib 25 mg daily, 0.13 for the 75-mg daily dose, 0.08 for the 75-mg twice-daily dose, and 0.20 for dimethyl fumarate. The magnitude of reduction was maintained at the 48-week evaluation for evobrutinib 75 mg twice daily, with an annualized relapse rate of 0.11, Dr. Montalban reported.
Most treatment-emergent adverse events were mild or moderate, according to the investigators.
Reported ALT elevations in the evobrutinib arms were mainly grade 1. While some grade 3-4 elevations were seen in the first 24 weeks of the study, they were reversible and did not have clinical consequences, according to Dr. Montalban.
Results of the study were published concurrently in the New England Journal of Medicine.
Dr. Montalban provided disclosures related to Biogen, Merck Serono, Genentech, Genzyme, Novartis, Sanofi-Aventis, Teva Pharmaceuticals, Roche, Celgene, Actelion, National Multiple Sclerosis Society, and Multiple Sclerosis International Federation.
SOURCE: Montalban X et al. AAN 2019. Abstract S56.004.
PHILADELPHIA – Higher doses of evobrutinib significantly improved that study endpoint, and were associated with numerical decreases in the annualized relapse rate versus placebo, according to a report presented at the annual meeting of the American Academy of Neurology.
Some grade 3-4 transaminase elevations were associated with evobrutinib, though these were asymptomatic, reversible, and occurred within the first 24 weeks of the 48-week treatment period, said investigator Xavier Montalban, MD, PhD, chairman and director of the department of neurology-neuroimmunology at Vall d’Hebron University Hospital in Barcelona.
“Overall, we do believe the results of the phase 2 study support further clinical development in relapsing multiple sclerosis,” Dr. Montalban said.
This study builds on previous observations that BTK plays an important role in immune functions related to the pathogenesis of MS, Dr. Montalban said. Evobrutinib in particular impacts B cells and myeloid cells along with pathways involved in MS-related inflammation, he added.
In the current randomized, phase 2, placebo-controlled study, 267 patients with relapsing MS were randomized to one of five arms: placebo, evobrutinib 25-mg daily, 75-mg daily, or 75-mg twice daily, or an open-label reference arm of dimethyl fumarate 240 mg twice daily.
Dr. Montalban presented the results of a 24-week treatment period plus a 24-week blinded extension period, during which placebo-treated patients crossed over to evobrutinib 25 mg daily, for a total of 48 weeks of treatment.
The primary study endpoint was the cumulative number of MRI-assessed T1 Gd+ lesions at weeks 12, 16, 20, and 24. Dr. Montalban said that evobrutinib in the two 75-mg arms significantly reduced enhancing lesions versus placebo over weeks 12-24, with lesion rate ratios of 0.30 for the 75-mg daily arm, and 0.44 for the 75-mg twice-daily arm, with unadjusted P values of .002 and .031, respectively. By contrast, the evobrutinib 25-mg arm did not significantly reduce the cumulative number of enhancing lesions versus placebo over that time period.
There was a rapid reduction in the mean number of enhancing lesions from baseline to the week-12 visit for those 75-mg dosing arms, which was sustained through subsequent visits, Dr. Montalban said.
There were no significant differences between arms in the annualized relapse rate at week 24, a key secondary endpoint of the study, according to the investigators. The annualized relapse rate was 0.37 for placebo, 0.57 for evobrutinib 25 mg daily, 0.13 for the 75-mg daily dose, 0.08 for the 75-mg twice-daily dose, and 0.20 for dimethyl fumarate. The magnitude of reduction was maintained at the 48-week evaluation for evobrutinib 75 mg twice daily, with an annualized relapse rate of 0.11, Dr. Montalban reported.
Most treatment-emergent adverse events were mild or moderate, according to the investigators.
Reported ALT elevations in the evobrutinib arms were mainly grade 1. While some grade 3-4 elevations were seen in the first 24 weeks of the study, they were reversible and did not have clinical consequences, according to Dr. Montalban.
Results of the study were published concurrently in the New England Journal of Medicine.
Dr. Montalban provided disclosures related to Biogen, Merck Serono, Genentech, Genzyme, Novartis, Sanofi-Aventis, Teva Pharmaceuticals, Roche, Celgene, Actelion, National Multiple Sclerosis Society, and Multiple Sclerosis International Federation.
SOURCE: Montalban X et al. AAN 2019. Abstract S56.004.
PHILADELPHIA – Higher doses of evobrutinib significantly improved that study endpoint, and were associated with numerical decreases in the annualized relapse rate versus placebo, according to a report presented at the annual meeting of the American Academy of Neurology.
Some grade 3-4 transaminase elevations were associated with evobrutinib, though these were asymptomatic, reversible, and occurred within the first 24 weeks of the 48-week treatment period, said investigator Xavier Montalban, MD, PhD, chairman and director of the department of neurology-neuroimmunology at Vall d’Hebron University Hospital in Barcelona.
“Overall, we do believe the results of the phase 2 study support further clinical development in relapsing multiple sclerosis,” Dr. Montalban said.
This study builds on previous observations that BTK plays an important role in immune functions related to the pathogenesis of MS, Dr. Montalban said. Evobrutinib in particular impacts B cells and myeloid cells along with pathways involved in MS-related inflammation, he added.
In the current randomized, phase 2, placebo-controlled study, 267 patients with relapsing MS were randomized to one of five arms: placebo, evobrutinib 25-mg daily, 75-mg daily, or 75-mg twice daily, or an open-label reference arm of dimethyl fumarate 240 mg twice daily.
Dr. Montalban presented the results of a 24-week treatment period plus a 24-week blinded extension period, during which placebo-treated patients crossed over to evobrutinib 25 mg daily, for a total of 48 weeks of treatment.
The primary study endpoint was the cumulative number of MRI-assessed T1 Gd+ lesions at weeks 12, 16, 20, and 24. Dr. Montalban said that evobrutinib in the two 75-mg arms significantly reduced enhancing lesions versus placebo over weeks 12-24, with lesion rate ratios of 0.30 for the 75-mg daily arm, and 0.44 for the 75-mg twice-daily arm, with unadjusted P values of .002 and .031, respectively. By contrast, the evobrutinib 25-mg arm did not significantly reduce the cumulative number of enhancing lesions versus placebo over that time period.
There was a rapid reduction in the mean number of enhancing lesions from baseline to the week-12 visit for those 75-mg dosing arms, which was sustained through subsequent visits, Dr. Montalban said.
There were no significant differences between arms in the annualized relapse rate at week 24, a key secondary endpoint of the study, according to the investigators. The annualized relapse rate was 0.37 for placebo, 0.57 for evobrutinib 25 mg daily, 0.13 for the 75-mg daily dose, 0.08 for the 75-mg twice-daily dose, and 0.20 for dimethyl fumarate. The magnitude of reduction was maintained at the 48-week evaluation for evobrutinib 75 mg twice daily, with an annualized relapse rate of 0.11, Dr. Montalban reported.
Most treatment-emergent adverse events were mild or moderate, according to the investigators.
Reported ALT elevations in the evobrutinib arms were mainly grade 1. While some grade 3-4 elevations were seen in the first 24 weeks of the study, they were reversible and did not have clinical consequences, according to Dr. Montalban.
Results of the study were published concurrently in the New England Journal of Medicine.
Dr. Montalban provided disclosures related to Biogen, Merck Serono, Genentech, Genzyme, Novartis, Sanofi-Aventis, Teva Pharmaceuticals, Roche, Celgene, Actelion, National Multiple Sclerosis Society, and Multiple Sclerosis International Federation.
SOURCE: Montalban X et al. AAN 2019. Abstract S56.004.
FROM AAN 2019
Fingolimod reduced disease activity more than glatiramer acetate in RRMS: ASSESS study results
PHILADELPHIA – reported at the annual meeting of the American Academy of Neurology. The optimal efficacious dose of fingolimod was 0.5 mg once daily, according to the results of the ASSESS study, which also evaluated a 0.25-mg daily dose of fingolimod versus a 20-mg daily dose of glatiramer acetate.
Adverse events seen with fingolimod were consistent with the established safety profile of the immunomodulatory drug, according to investigator Bruce Cree, MD, PhD, of the UCSF Weill Institute for Neurosciences, department of neurology, University of California, San Francisco.
“I believe this is the first study to go head to head versus glatiramer acetate to show superiority,” Dr. Cree said in a podium presentation of the results.
While fingolimod 0.5 mg has shown superior efficacy over placebo and interferon beta-1a in previous phase 3 trials, head-to-head comparisons versus disease-modifying therapies can help inform treatment decisions in clinical practice, Dr. Cree and coinvestigators noted in the abstract that describes their results.
The randomized, three-armed, phase 3b ASSESS study included 12 months of dose-blinded treatment and 3 months of follow-up. Investigators enrolled 1,054 patients with relapsing-remitting MS, of whom about 74% were women and the average age was 40 years, Dr. Cree said in his presentation.
Annualized relapse rate, the primary endpoint of the study, was 0.153 for the fingolimod 0.5-mg arm, versus 0.258 for the glatiramer acetate 20-mg arm, for a 40.7% relative reduction (P = .013), Dr. Cree reported. By contrast, he said, the annualized relapse rate within the fingolimod 0.25-mg arm was 0.221, which was not statistically different versus glatiramer acetate.
The fingolimod 0.5-mg arm was also superior to glatiramer acetate on a number of radiographic endpoints at month 12, including new or newly enlarged T2 lesion count, change in T2 lesion volume, gadolinium-positive T1 lesion count, and gadolinium-positive T1 lesion volume, Dr. Cree said.
Adverse events and serious adverse events were “much as expected” in all three study groups, Dr. Cree said.
The observed safety with fingolimod was consistent with previously available data on fingolimod 0.5 mg, and the safety profile of the lower 0.25-mg dose seemed to be comparable with the 0.5-mg dose, according to his presentation.
Adverse events with fingolimod were “largely laboratory abnormalities,” that occurred more frequently in the fingolimod arms, he said. Although there was an apparent dose-dependent effect between the 0.25-mg and 0.5-mg doses, the overall proportion of patients experiencing low white blood cell counts or elevations in liver enzymes was low, he added.
Bradycardia was “infrequent” in both fingolimod groups in first-dose observations, though it did again occur with a dose-dependent effect, Dr. Cree said.
He reported bradycardia in two patients (0.5%) in the fingolimod 0.25-mg group and four (1.2%) in the fingolimod 0.5-mg group, while the number of patients requiring overnight hospitalizations was one (0.3%) and five (1.5%) in the 0.25- and 0.5-mg groups, respectively.
Hepatic enzyme abnormalities were the leading reason for discontinuation of fingolimod, while in contrast, drug hypersensitivity and injection site reactions led to discontinuations in the glatiramer acetate arm, he added.
Novartis sponsored the study. Dr. Cree provided disclosures related to Abbvie, Akili, Biogen, EMD Serono, GeNeuro and Novartis.
SOURCE: Cree B et al. AAN 2019, Abstract 56.009.
PHILADELPHIA – reported at the annual meeting of the American Academy of Neurology. The optimal efficacious dose of fingolimod was 0.5 mg once daily, according to the results of the ASSESS study, which also evaluated a 0.25-mg daily dose of fingolimod versus a 20-mg daily dose of glatiramer acetate.
Adverse events seen with fingolimod were consistent with the established safety profile of the immunomodulatory drug, according to investigator Bruce Cree, MD, PhD, of the UCSF Weill Institute for Neurosciences, department of neurology, University of California, San Francisco.
“I believe this is the first study to go head to head versus glatiramer acetate to show superiority,” Dr. Cree said in a podium presentation of the results.
While fingolimod 0.5 mg has shown superior efficacy over placebo and interferon beta-1a in previous phase 3 trials, head-to-head comparisons versus disease-modifying therapies can help inform treatment decisions in clinical practice, Dr. Cree and coinvestigators noted in the abstract that describes their results.
The randomized, three-armed, phase 3b ASSESS study included 12 months of dose-blinded treatment and 3 months of follow-up. Investigators enrolled 1,054 patients with relapsing-remitting MS, of whom about 74% were women and the average age was 40 years, Dr. Cree said in his presentation.
Annualized relapse rate, the primary endpoint of the study, was 0.153 for the fingolimod 0.5-mg arm, versus 0.258 for the glatiramer acetate 20-mg arm, for a 40.7% relative reduction (P = .013), Dr. Cree reported. By contrast, he said, the annualized relapse rate within the fingolimod 0.25-mg arm was 0.221, which was not statistically different versus glatiramer acetate.
The fingolimod 0.5-mg arm was also superior to glatiramer acetate on a number of radiographic endpoints at month 12, including new or newly enlarged T2 lesion count, change in T2 lesion volume, gadolinium-positive T1 lesion count, and gadolinium-positive T1 lesion volume, Dr. Cree said.
Adverse events and serious adverse events were “much as expected” in all three study groups, Dr. Cree said.
The observed safety with fingolimod was consistent with previously available data on fingolimod 0.5 mg, and the safety profile of the lower 0.25-mg dose seemed to be comparable with the 0.5-mg dose, according to his presentation.
Adverse events with fingolimod were “largely laboratory abnormalities,” that occurred more frequently in the fingolimod arms, he said. Although there was an apparent dose-dependent effect between the 0.25-mg and 0.5-mg doses, the overall proportion of patients experiencing low white blood cell counts or elevations in liver enzymes was low, he added.
Bradycardia was “infrequent” in both fingolimod groups in first-dose observations, though it did again occur with a dose-dependent effect, Dr. Cree said.
He reported bradycardia in two patients (0.5%) in the fingolimod 0.25-mg group and four (1.2%) in the fingolimod 0.5-mg group, while the number of patients requiring overnight hospitalizations was one (0.3%) and five (1.5%) in the 0.25- and 0.5-mg groups, respectively.
Hepatic enzyme abnormalities were the leading reason for discontinuation of fingolimod, while in contrast, drug hypersensitivity and injection site reactions led to discontinuations in the glatiramer acetate arm, he added.
Novartis sponsored the study. Dr. Cree provided disclosures related to Abbvie, Akili, Biogen, EMD Serono, GeNeuro and Novartis.
SOURCE: Cree B et al. AAN 2019, Abstract 56.009.
PHILADELPHIA – reported at the annual meeting of the American Academy of Neurology. The optimal efficacious dose of fingolimod was 0.5 mg once daily, according to the results of the ASSESS study, which also evaluated a 0.25-mg daily dose of fingolimod versus a 20-mg daily dose of glatiramer acetate.
Adverse events seen with fingolimod were consistent with the established safety profile of the immunomodulatory drug, according to investigator Bruce Cree, MD, PhD, of the UCSF Weill Institute for Neurosciences, department of neurology, University of California, San Francisco.
“I believe this is the first study to go head to head versus glatiramer acetate to show superiority,” Dr. Cree said in a podium presentation of the results.
While fingolimod 0.5 mg has shown superior efficacy over placebo and interferon beta-1a in previous phase 3 trials, head-to-head comparisons versus disease-modifying therapies can help inform treatment decisions in clinical practice, Dr. Cree and coinvestigators noted in the abstract that describes their results.
The randomized, three-armed, phase 3b ASSESS study included 12 months of dose-blinded treatment and 3 months of follow-up. Investigators enrolled 1,054 patients with relapsing-remitting MS, of whom about 74% were women and the average age was 40 years, Dr. Cree said in his presentation.
Annualized relapse rate, the primary endpoint of the study, was 0.153 for the fingolimod 0.5-mg arm, versus 0.258 for the glatiramer acetate 20-mg arm, for a 40.7% relative reduction (P = .013), Dr. Cree reported. By contrast, he said, the annualized relapse rate within the fingolimod 0.25-mg arm was 0.221, which was not statistically different versus glatiramer acetate.
The fingolimod 0.5-mg arm was also superior to glatiramer acetate on a number of radiographic endpoints at month 12, including new or newly enlarged T2 lesion count, change in T2 lesion volume, gadolinium-positive T1 lesion count, and gadolinium-positive T1 lesion volume, Dr. Cree said.
Adverse events and serious adverse events were “much as expected” in all three study groups, Dr. Cree said.
The observed safety with fingolimod was consistent with previously available data on fingolimod 0.5 mg, and the safety profile of the lower 0.25-mg dose seemed to be comparable with the 0.5-mg dose, according to his presentation.
Adverse events with fingolimod were “largely laboratory abnormalities,” that occurred more frequently in the fingolimod arms, he said. Although there was an apparent dose-dependent effect between the 0.25-mg and 0.5-mg doses, the overall proportion of patients experiencing low white blood cell counts or elevations in liver enzymes was low, he added.
Bradycardia was “infrequent” in both fingolimod groups in first-dose observations, though it did again occur with a dose-dependent effect, Dr. Cree said.
He reported bradycardia in two patients (0.5%) in the fingolimod 0.25-mg group and four (1.2%) in the fingolimod 0.5-mg group, while the number of patients requiring overnight hospitalizations was one (0.3%) and five (1.5%) in the 0.25- and 0.5-mg groups, respectively.
Hepatic enzyme abnormalities were the leading reason for discontinuation of fingolimod, while in contrast, drug hypersensitivity and injection site reactions led to discontinuations in the glatiramer acetate arm, he added.
Novartis sponsored the study. Dr. Cree provided disclosures related to Abbvie, Akili, Biogen, EMD Serono, GeNeuro and Novartis.
SOURCE: Cree B et al. AAN 2019, Abstract 56.009.
REPORTING FROM AAN 2019
Ocrelizumab effective, safe in relapsing-remitting MS patients
PHILADELPHIA – Ocrelizumab is effective and safe in patients with relapsing-remitting multiple sclerosis who had inadequate responses to previous disease-modifying treatments, said an investigator reporting interim results of a recent nonrandomized study.
The findings of the 600+ patient CHORDS study suggest a positive risk-to-benefit ratio over nearly 1 year for this anti-CD20 monoclonal antibody, said Thomas P. Leist, MD, of Thomas Jefferson University, Philadelphia, at the annual meeting of the American Academy of Neurology (AAN).
“MRI activity has been significantly attenuated in these individuals, particularly, in the period from 24 to 48 weeks, and the overall safety that has been observed to date has been in line with what has been observed in clinical trials with this medication,” Dr. Leist said in a podium presentation.
While previous investigations demonstrated superiority to treatment with interferon in patients with relapsing multiple sclerosis, this phase IIIb study was needed to further clarify the effects of the treatment following suboptimal response to several disease modifying treatments, according to Dr. Leist and his co-investigators.
The intention-to-treat population of CHORDS consisted of 608 patients who received disease-modifying therapy for 6 or more months and discontinued it due to suboptimal response, which was defined as one or more clinically reported relapses, one or more T1 gadolinium-enhancing lesions, or two or more enlarging T2 lesions. They all received a 600 mg dose of ocrelizumab every 24 weeks for as many as 96 weeks.
With 48 weeks of follow-up, the majority of patients had no relapses, no enhancing T1 lesions, no new or enlarging T2 lesions, and no confirmed progression of disability. In all, 54.5% of the patients experienced none of those events, according to Dr. Leist.
The adjusted annualized relapse rate in this cohort was 0.065, he reported.
New MRI activity included 48 new T1 gadolinium-enhancing lesions in 1,174 MRI scans, for an adjusted rate of 0.023, he also reported, while there were 679 new or enlarging T2 lesions on 1,175 scans, for an adjusted rate of 0.581.
The safety in this population was comparable to the overall safety profile of ocrelizumab seen in other studies, according to Dr. Leist. A total of 25 patients, or 4.1%, experienced a serious adverse event, though none led to treatment withdrawal and only one led to a dose modification or interruption, the data show.
Dr. Leist reported disclosures related to Alkermes, Bayer, Biogen, EMD Serono, Genentech, Inc., Novartis, Sanofi Genzyme, Sun Pharma, and Teva Neuroscience.
SOURCE: Leist TP, et al. Presented at the 2019 American Academy of Neurology (AAN) Annual Meeting, May 4-10, 2019. Philadelphia. Presentation S56.007.
PHILADELPHIA – Ocrelizumab is effective and safe in patients with relapsing-remitting multiple sclerosis who had inadequate responses to previous disease-modifying treatments, said an investigator reporting interim results of a recent nonrandomized study.
The findings of the 600+ patient CHORDS study suggest a positive risk-to-benefit ratio over nearly 1 year for this anti-CD20 monoclonal antibody, said Thomas P. Leist, MD, of Thomas Jefferson University, Philadelphia, at the annual meeting of the American Academy of Neurology (AAN).
“MRI activity has been significantly attenuated in these individuals, particularly, in the period from 24 to 48 weeks, and the overall safety that has been observed to date has been in line with what has been observed in clinical trials with this medication,” Dr. Leist said in a podium presentation.
While previous investigations demonstrated superiority to treatment with interferon in patients with relapsing multiple sclerosis, this phase IIIb study was needed to further clarify the effects of the treatment following suboptimal response to several disease modifying treatments, according to Dr. Leist and his co-investigators.
The intention-to-treat population of CHORDS consisted of 608 patients who received disease-modifying therapy for 6 or more months and discontinued it due to suboptimal response, which was defined as one or more clinically reported relapses, one or more T1 gadolinium-enhancing lesions, or two or more enlarging T2 lesions. They all received a 600 mg dose of ocrelizumab every 24 weeks for as many as 96 weeks.
With 48 weeks of follow-up, the majority of patients had no relapses, no enhancing T1 lesions, no new or enlarging T2 lesions, and no confirmed progression of disability. In all, 54.5% of the patients experienced none of those events, according to Dr. Leist.
The adjusted annualized relapse rate in this cohort was 0.065, he reported.
New MRI activity included 48 new T1 gadolinium-enhancing lesions in 1,174 MRI scans, for an adjusted rate of 0.023, he also reported, while there were 679 new or enlarging T2 lesions on 1,175 scans, for an adjusted rate of 0.581.
The safety in this population was comparable to the overall safety profile of ocrelizumab seen in other studies, according to Dr. Leist. A total of 25 patients, or 4.1%, experienced a serious adverse event, though none led to treatment withdrawal and only one led to a dose modification or interruption, the data show.
Dr. Leist reported disclosures related to Alkermes, Bayer, Biogen, EMD Serono, Genentech, Inc., Novartis, Sanofi Genzyme, Sun Pharma, and Teva Neuroscience.
SOURCE: Leist TP, et al. Presented at the 2019 American Academy of Neurology (AAN) Annual Meeting, May 4-10, 2019. Philadelphia. Presentation S56.007.
PHILADELPHIA – Ocrelizumab is effective and safe in patients with relapsing-remitting multiple sclerosis who had inadequate responses to previous disease-modifying treatments, said an investigator reporting interim results of a recent nonrandomized study.
The findings of the 600+ patient CHORDS study suggest a positive risk-to-benefit ratio over nearly 1 year for this anti-CD20 monoclonal antibody, said Thomas P. Leist, MD, of Thomas Jefferson University, Philadelphia, at the annual meeting of the American Academy of Neurology (AAN).
“MRI activity has been significantly attenuated in these individuals, particularly, in the period from 24 to 48 weeks, and the overall safety that has been observed to date has been in line with what has been observed in clinical trials with this medication,” Dr. Leist said in a podium presentation.
While previous investigations demonstrated superiority to treatment with interferon in patients with relapsing multiple sclerosis, this phase IIIb study was needed to further clarify the effects of the treatment following suboptimal response to several disease modifying treatments, according to Dr. Leist and his co-investigators.
The intention-to-treat population of CHORDS consisted of 608 patients who received disease-modifying therapy for 6 or more months and discontinued it due to suboptimal response, which was defined as one or more clinically reported relapses, one or more T1 gadolinium-enhancing lesions, or two or more enlarging T2 lesions. They all received a 600 mg dose of ocrelizumab every 24 weeks for as many as 96 weeks.
With 48 weeks of follow-up, the majority of patients had no relapses, no enhancing T1 lesions, no new or enlarging T2 lesions, and no confirmed progression of disability. In all, 54.5% of the patients experienced none of those events, according to Dr. Leist.
The adjusted annualized relapse rate in this cohort was 0.065, he reported.
New MRI activity included 48 new T1 gadolinium-enhancing lesions in 1,174 MRI scans, for an adjusted rate of 0.023, he also reported, while there were 679 new or enlarging T2 lesions on 1,175 scans, for an adjusted rate of 0.581.
The safety in this population was comparable to the overall safety profile of ocrelizumab seen in other studies, according to Dr. Leist. A total of 25 patients, or 4.1%, experienced a serious adverse event, though none led to treatment withdrawal and only one led to a dose modification or interruption, the data show.
Dr. Leist reported disclosures related to Alkermes, Bayer, Biogen, EMD Serono, Genentech, Inc., Novartis, Sanofi Genzyme, Sun Pharma, and Teva Neuroscience.
SOURCE: Leist TP, et al. Presented at the 2019 American Academy of Neurology (AAN) Annual Meeting, May 4-10, 2019. Philadelphia. Presentation S56.007.
FROM AAN 2019
Deutetrabenazine benefit may increase over time in patients with tardive dyskinesia
PHILADELPHIA –
The mean Abnormal Involuntary Movement Scale (AIMS) score in the study continued to increase over 3 years of treatment with this VMAT2 inhibitor, which was safe and well tolerated over the course of the study, said investigator Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center and professor in the department of neurology at the University of South Florida in Tampa.
The apparent improvement over time was “fascinating” to observe, Dr. Hauser said. The finding deserves further study to identify potential confounders, such as rater bias over time or placebo effects, and if those “trivial” causes can be ruled out to determine a potential mechanism of action.
“I will also say that the mechanism may not be that important if we can really show this important clinical effect,” he said. “So I think this needs more work.”
The FDA approved deutetrabenazine (Austedo, Teva) for tardive dyskinesia treatment based on ARM-TD and AIM-TD, two randomized, double-blind, placebo-controlled trials. Those studies demonstrated improvements in AIMS scores for the VMAT2 inhibitor versus placebo, with low rates of adverse events and discontinuations, Dr. Hauser said.
Dr. Hauser presented results up to week 145 from C-20, an ongoing, 3-year, open-label extension study designed to evaluate the agent’s long-term safety and efficacy.
A total of 343 patients from ARM-TD and AIM-TD rolled over directly into C-20, started at 12 mg/day of deutetrabenazine, and titrated until adequate tardive dyskinesia control was achieved, up to 48 mg/day. Sixty percent of the patients had psychotic disorders as the background comorbid illness, while 40% had mood disorders, according to the interim report.
The mean AIMS score was 10.9 at baseline, 6.0 at 54 weeks, 5.8 at 106 weeks, and 4.1 at 145 weeks, the report showed. The corresponding change in AIMS score decreased from baseline for patients who remained in the study, from –4.8 at 54 weeks to –5.6 at 106 weeks and –7.0 at 145 weeks.*
A subsequent completer analysis showed that the apparent improvement in efficacy over the long term was not due to poor responders dropping out over time, Dr. Hauser said.
“I think the data clearly show the benefit is maintained, and intriguingly, I think they suggest that there may be increasing benefit over time,” he added.
The treatment was safe and well tolerated in long-term use. The most common adverse events were anxiety, somnolence, fatigue, insomnia, and headache. Adverse events did not increase in frequency from the parent studies to the open-label study, he noted.
The study was sponsored by Teva Pharmaceuticals. Dr. Hauser reported disclosures related to Teva, AbbVie, AstraZeneca, Biotie Thrapies, Cynapsus Therapeutics, Neurocrine Biosciences, Sunovion Pharmaceuticals, and Pfizer, among others.
SOURCE: Hauser RA et al. AAN 2019. Abstract S4.009.
*Correction, 6/26/19 An earlier version of this article mischaracterized changes in the mean Abnormal Involuntary Movement Scale scores during treatment.
PHILADELPHIA –
The mean Abnormal Involuntary Movement Scale (AIMS) score in the study continued to increase over 3 years of treatment with this VMAT2 inhibitor, which was safe and well tolerated over the course of the study, said investigator Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center and professor in the department of neurology at the University of South Florida in Tampa.
The apparent improvement over time was “fascinating” to observe, Dr. Hauser said. The finding deserves further study to identify potential confounders, such as rater bias over time or placebo effects, and if those “trivial” causes can be ruled out to determine a potential mechanism of action.
“I will also say that the mechanism may not be that important if we can really show this important clinical effect,” he said. “So I think this needs more work.”
The FDA approved deutetrabenazine (Austedo, Teva) for tardive dyskinesia treatment based on ARM-TD and AIM-TD, two randomized, double-blind, placebo-controlled trials. Those studies demonstrated improvements in AIMS scores for the VMAT2 inhibitor versus placebo, with low rates of adverse events and discontinuations, Dr. Hauser said.
Dr. Hauser presented results up to week 145 from C-20, an ongoing, 3-year, open-label extension study designed to evaluate the agent’s long-term safety and efficacy.
A total of 343 patients from ARM-TD and AIM-TD rolled over directly into C-20, started at 12 mg/day of deutetrabenazine, and titrated until adequate tardive dyskinesia control was achieved, up to 48 mg/day. Sixty percent of the patients had psychotic disorders as the background comorbid illness, while 40% had mood disorders, according to the interim report.
The mean AIMS score was 10.9 at baseline, 6.0 at 54 weeks, 5.8 at 106 weeks, and 4.1 at 145 weeks, the report showed. The corresponding change in AIMS score decreased from baseline for patients who remained in the study, from –4.8 at 54 weeks to –5.6 at 106 weeks and –7.0 at 145 weeks.*
A subsequent completer analysis showed that the apparent improvement in efficacy over the long term was not due to poor responders dropping out over time, Dr. Hauser said.
“I think the data clearly show the benefit is maintained, and intriguingly, I think they suggest that there may be increasing benefit over time,” he added.
The treatment was safe and well tolerated in long-term use. The most common adverse events were anxiety, somnolence, fatigue, insomnia, and headache. Adverse events did not increase in frequency from the parent studies to the open-label study, he noted.
The study was sponsored by Teva Pharmaceuticals. Dr. Hauser reported disclosures related to Teva, AbbVie, AstraZeneca, Biotie Thrapies, Cynapsus Therapeutics, Neurocrine Biosciences, Sunovion Pharmaceuticals, and Pfizer, among others.
SOURCE: Hauser RA et al. AAN 2019. Abstract S4.009.
*Correction, 6/26/19 An earlier version of this article mischaracterized changes in the mean Abnormal Involuntary Movement Scale scores during treatment.
PHILADELPHIA –
The mean Abnormal Involuntary Movement Scale (AIMS) score in the study continued to increase over 3 years of treatment with this VMAT2 inhibitor, which was safe and well tolerated over the course of the study, said investigator Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center and professor in the department of neurology at the University of South Florida in Tampa.
The apparent improvement over time was “fascinating” to observe, Dr. Hauser said. The finding deserves further study to identify potential confounders, such as rater bias over time or placebo effects, and if those “trivial” causes can be ruled out to determine a potential mechanism of action.
“I will also say that the mechanism may not be that important if we can really show this important clinical effect,” he said. “So I think this needs more work.”
The FDA approved deutetrabenazine (Austedo, Teva) for tardive dyskinesia treatment based on ARM-TD and AIM-TD, two randomized, double-blind, placebo-controlled trials. Those studies demonstrated improvements in AIMS scores for the VMAT2 inhibitor versus placebo, with low rates of adverse events and discontinuations, Dr. Hauser said.
Dr. Hauser presented results up to week 145 from C-20, an ongoing, 3-year, open-label extension study designed to evaluate the agent’s long-term safety and efficacy.
A total of 343 patients from ARM-TD and AIM-TD rolled over directly into C-20, started at 12 mg/day of deutetrabenazine, and titrated until adequate tardive dyskinesia control was achieved, up to 48 mg/day. Sixty percent of the patients had psychotic disorders as the background comorbid illness, while 40% had mood disorders, according to the interim report.
The mean AIMS score was 10.9 at baseline, 6.0 at 54 weeks, 5.8 at 106 weeks, and 4.1 at 145 weeks, the report showed. The corresponding change in AIMS score decreased from baseline for patients who remained in the study, from –4.8 at 54 weeks to –5.6 at 106 weeks and –7.0 at 145 weeks.*
A subsequent completer analysis showed that the apparent improvement in efficacy over the long term was not due to poor responders dropping out over time, Dr. Hauser said.
“I think the data clearly show the benefit is maintained, and intriguingly, I think they suggest that there may be increasing benefit over time,” he added.
The treatment was safe and well tolerated in long-term use. The most common adverse events were anxiety, somnolence, fatigue, insomnia, and headache. Adverse events did not increase in frequency from the parent studies to the open-label study, he noted.
The study was sponsored by Teva Pharmaceuticals. Dr. Hauser reported disclosures related to Teva, AbbVie, AstraZeneca, Biotie Thrapies, Cynapsus Therapeutics, Neurocrine Biosciences, Sunovion Pharmaceuticals, and Pfizer, among others.
SOURCE: Hauser RA et al. AAN 2019. Abstract S4.009.
*Correction, 6/26/19 An earlier version of this article mischaracterized changes in the mean Abnormal Involuntary Movement Scale scores during treatment.
REPORTING FROM AAN 2019
Key clinical point: The benefit of deutetrabenazine in patients with tardive dyskinesia is maintained in the long term and may actually increase over time, though further study is needed.
Major finding: Change from baseline in Abnormal Involuntary Movement Scale (AIMS) score decreased from –4.8 at 54 weeks to –5.6 at 106 weeks and –7.0 at 154 weeks.
Study details: Interim analysis of C-20, an open-label extension study including 343 patients initially enrolled in one of two pivotal randomized phase 3 studies.
Disclosures: The study was sponsored by Teva Pharmaceuticals. Dr. Hauser reported disclosures related to Teva, AbbVie, AstraZeneca, Biotie Thrapies, Cynapsus Therapeutics, Neurocrine Biosciences, Sunovion Pharmaceuticals, and Pfizer, among others.
Source: Hauser RA et al. AAN 2019. Abstract S4.009.
Sugary drink intake may be associated with MS severity
PHILADELPHIA – presented at the annual meeting of the American Academy of Neurology. Overall diet quality, however, is not associated with disability, the study showed.
The results do not establish that sugary drinks cause disability, and the potential association needs to be confirmed in larger, longitudinal studies, the researchers said. Nevertheless, “we do know that sodas have no nutritional value, and people with MS may want to consider reducing or eliminating them from their diet,” study lead author Elisa Meier-Gerdingh, MD, of St. Josef Hospital in Bochum, Germany, said in a written statement.
Diet may influence metabolic comorbidities, immune function, oxidative stress, and gut microbiota in patients with MS, but data about diet’s effects on MS progression are limited, the researchers said.
To examine dietary intake and disability in patients with MS, Dr. Meier-Gerdingh and her colleagues conducted a cross-sectional study of 135 participants with MS who were treated at a large referral center in Germany. Participants had a mean age of 44.6 years and mean body mass index of 24.5. Mean disease duration was 13.8 years, and 73% were women. Participants completed a 102-item food frequency questionnaire, which the investigators used to calculate each participant’s Dietary Approaches to Stop Hypertension (DASH) score. The score is a composite measure of dietary quality that favorably scores intake of fruits, vegetables, nuts and legumes, whole grains, and dairy and unfavorably scores intake of sodium, sugar-sweetened beverages, and red and processed meats.
“We chose to study the DASH diet because adherence to the DASH diet is associated with lower risk of other chronic diseases like high blood pressure, diabetes, and cardiovascular diseases,” Dr. Meier-Gerdingh said.
The researchers considered severe disability to be an Expanded Disability Status Scale (EDSS) score of 6 or greater. They assessed the association between overall DASH scores and disability status using logistic regression models that adjusted for age, sex, body mass index, smoking, and symptom duration. They also assessed the association between disability and each nutritional component of the DASH score.
In all, 30 participants had severe disability. “Overall DASH scores were not associated with disability status,” Dr. Meier-Gerdingh and her colleagues said. When they looked at individual DASH score components, patients with higher intakes of sugar-sweetened beverages had a higher risk of severe disability (P for trend = .01). Participants in the highest quartile consumed about 290 calories of sugar-sweetened beverages per day on average, compared with 7 calories per day for patients in the lowest quartile. The top quartile had an average EDSS of 4.1, and the bottom quartile had an average EDSS of 3.4. Other DASH score components were not associated with disability status.
Dr. Meier-Gerdingh had no disclosures. Her coauthors reported research support and personal compensation from pharmaceutical companies.
SOURCE: Meier-Gerdingh E et al. AAN 2019, Abstract P4.2-063.
PHILADELPHIA – presented at the annual meeting of the American Academy of Neurology. Overall diet quality, however, is not associated with disability, the study showed.
The results do not establish that sugary drinks cause disability, and the potential association needs to be confirmed in larger, longitudinal studies, the researchers said. Nevertheless, “we do know that sodas have no nutritional value, and people with MS may want to consider reducing or eliminating them from their diet,” study lead author Elisa Meier-Gerdingh, MD, of St. Josef Hospital in Bochum, Germany, said in a written statement.
Diet may influence metabolic comorbidities, immune function, oxidative stress, and gut microbiota in patients with MS, but data about diet’s effects on MS progression are limited, the researchers said.
To examine dietary intake and disability in patients with MS, Dr. Meier-Gerdingh and her colleagues conducted a cross-sectional study of 135 participants with MS who were treated at a large referral center in Germany. Participants had a mean age of 44.6 years and mean body mass index of 24.5. Mean disease duration was 13.8 years, and 73% were women. Participants completed a 102-item food frequency questionnaire, which the investigators used to calculate each participant’s Dietary Approaches to Stop Hypertension (DASH) score. The score is a composite measure of dietary quality that favorably scores intake of fruits, vegetables, nuts and legumes, whole grains, and dairy and unfavorably scores intake of sodium, sugar-sweetened beverages, and red and processed meats.
“We chose to study the DASH diet because adherence to the DASH diet is associated with lower risk of other chronic diseases like high blood pressure, diabetes, and cardiovascular diseases,” Dr. Meier-Gerdingh said.
The researchers considered severe disability to be an Expanded Disability Status Scale (EDSS) score of 6 or greater. They assessed the association between overall DASH scores and disability status using logistic regression models that adjusted for age, sex, body mass index, smoking, and symptom duration. They also assessed the association between disability and each nutritional component of the DASH score.
In all, 30 participants had severe disability. “Overall DASH scores were not associated with disability status,” Dr. Meier-Gerdingh and her colleagues said. When they looked at individual DASH score components, patients with higher intakes of sugar-sweetened beverages had a higher risk of severe disability (P for trend = .01). Participants in the highest quartile consumed about 290 calories of sugar-sweetened beverages per day on average, compared with 7 calories per day for patients in the lowest quartile. The top quartile had an average EDSS of 4.1, and the bottom quartile had an average EDSS of 3.4. Other DASH score components were not associated with disability status.
Dr. Meier-Gerdingh had no disclosures. Her coauthors reported research support and personal compensation from pharmaceutical companies.
SOURCE: Meier-Gerdingh E et al. AAN 2019, Abstract P4.2-063.
PHILADELPHIA – presented at the annual meeting of the American Academy of Neurology. Overall diet quality, however, is not associated with disability, the study showed.
The results do not establish that sugary drinks cause disability, and the potential association needs to be confirmed in larger, longitudinal studies, the researchers said. Nevertheless, “we do know that sodas have no nutritional value, and people with MS may want to consider reducing or eliminating them from their diet,” study lead author Elisa Meier-Gerdingh, MD, of St. Josef Hospital in Bochum, Germany, said in a written statement.
Diet may influence metabolic comorbidities, immune function, oxidative stress, and gut microbiota in patients with MS, but data about diet’s effects on MS progression are limited, the researchers said.
To examine dietary intake and disability in patients with MS, Dr. Meier-Gerdingh and her colleagues conducted a cross-sectional study of 135 participants with MS who were treated at a large referral center in Germany. Participants had a mean age of 44.6 years and mean body mass index of 24.5. Mean disease duration was 13.8 years, and 73% were women. Participants completed a 102-item food frequency questionnaire, which the investigators used to calculate each participant’s Dietary Approaches to Stop Hypertension (DASH) score. The score is a composite measure of dietary quality that favorably scores intake of fruits, vegetables, nuts and legumes, whole grains, and dairy and unfavorably scores intake of sodium, sugar-sweetened beverages, and red and processed meats.
“We chose to study the DASH diet because adherence to the DASH diet is associated with lower risk of other chronic diseases like high blood pressure, diabetes, and cardiovascular diseases,” Dr. Meier-Gerdingh said.
The researchers considered severe disability to be an Expanded Disability Status Scale (EDSS) score of 6 or greater. They assessed the association between overall DASH scores and disability status using logistic regression models that adjusted for age, sex, body mass index, smoking, and symptom duration. They also assessed the association between disability and each nutritional component of the DASH score.
In all, 30 participants had severe disability. “Overall DASH scores were not associated with disability status,” Dr. Meier-Gerdingh and her colleagues said. When they looked at individual DASH score components, patients with higher intakes of sugar-sweetened beverages had a higher risk of severe disability (P for trend = .01). Participants in the highest quartile consumed about 290 calories of sugar-sweetened beverages per day on average, compared with 7 calories per day for patients in the lowest quartile. The top quartile had an average EDSS of 4.1, and the bottom quartile had an average EDSS of 3.4. Other DASH score components were not associated with disability status.
Dr. Meier-Gerdingh had no disclosures. Her coauthors reported research support and personal compensation from pharmaceutical companies.
SOURCE: Meier-Gerdingh E et al. AAN 2019, Abstract P4.2-063.
REPORTING FROM AAN 2019
Biomarker-based score predicts poor outcomes after acute ischemic stroke
PHILADELPHIA – A prognostic score for acute ischemic stroke that incorporates copeptin levels, age, recanalization, and National Institutes of Health Stroke Scale score has been externally validated and accurately predicts unfavorable outcome, according to research presented at the annual meeting of the American Academy of Neurology.
Although the four-item score could not be validated for mortality prediction, it had reasonable accuracy for predicting unfavorable functional outcome, defined as disability or mortality 3 months after ischemic stroke, Gian Marco De Marchis, MD, of the department of neurology and the stroke center at University Hospital Basel (Switzerland), said in a presentation.
“The use of a biomarker increases prognostic accuracy, allowing us to personalize prognosis in the frame of individualized, precision medicine,” Dr. De Marchis said.
Copeptin has been linked to disability and mortality at 3 months in two independent, large cohort studies of patients with ischemic stroke, he said.
The four-item prognostic score devised by Dr. De Marchis and his coinvestigators, which they call the CoRisk score, was developed based on a derivation cohort of 319 acute ischemic stroke patients and a validation cohort including another 783 patients in the Copeptin for Risk Stratification in Acute Stroke Patients (CoRisk) Study.
Diagnostic accuracy was 82% for the endpoint of unfavorable functional outcome at 3 months, according to Dr. De Marchis.
“The observed outcomes matched well with the expected outcomes,” he said in his presentation.
Further analyses demonstrated that the addition of copeptin indeed contributed to the diagnostic accuracy of the score, improving the classification for 46%; in other words, about half of the patients were reclassified based on addition of the biomarker data.
By contrast, the score is not well suited to predict mortality alone at 3 months, the results of the analyses showed.
The algorithm used to calculate the score based on its four variables is somewhat complex, but available as a free app and online calculator, Dr. De Marchis said.
Dr. De Marchis and his coauthors had nothing to disclose related to their study. A full report on the study was published ahead of print on March 1 in Neurology.
SOURCE: De Marchis GM et al. AAN 2019, Abstract S47.001.
PHILADELPHIA – A prognostic score for acute ischemic stroke that incorporates copeptin levels, age, recanalization, and National Institutes of Health Stroke Scale score has been externally validated and accurately predicts unfavorable outcome, according to research presented at the annual meeting of the American Academy of Neurology.
Although the four-item score could not be validated for mortality prediction, it had reasonable accuracy for predicting unfavorable functional outcome, defined as disability or mortality 3 months after ischemic stroke, Gian Marco De Marchis, MD, of the department of neurology and the stroke center at University Hospital Basel (Switzerland), said in a presentation.
“The use of a biomarker increases prognostic accuracy, allowing us to personalize prognosis in the frame of individualized, precision medicine,” Dr. De Marchis said.
Copeptin has been linked to disability and mortality at 3 months in two independent, large cohort studies of patients with ischemic stroke, he said.
The four-item prognostic score devised by Dr. De Marchis and his coinvestigators, which they call the CoRisk score, was developed based on a derivation cohort of 319 acute ischemic stroke patients and a validation cohort including another 783 patients in the Copeptin for Risk Stratification in Acute Stroke Patients (CoRisk) Study.
Diagnostic accuracy was 82% for the endpoint of unfavorable functional outcome at 3 months, according to Dr. De Marchis.
“The observed outcomes matched well with the expected outcomes,” he said in his presentation.
Further analyses demonstrated that the addition of copeptin indeed contributed to the diagnostic accuracy of the score, improving the classification for 46%; in other words, about half of the patients were reclassified based on addition of the biomarker data.
By contrast, the score is not well suited to predict mortality alone at 3 months, the results of the analyses showed.
The algorithm used to calculate the score based on its four variables is somewhat complex, but available as a free app and online calculator, Dr. De Marchis said.
Dr. De Marchis and his coauthors had nothing to disclose related to their study. A full report on the study was published ahead of print on March 1 in Neurology.
SOURCE: De Marchis GM et al. AAN 2019, Abstract S47.001.
PHILADELPHIA – A prognostic score for acute ischemic stroke that incorporates copeptin levels, age, recanalization, and National Institutes of Health Stroke Scale score has been externally validated and accurately predicts unfavorable outcome, according to research presented at the annual meeting of the American Academy of Neurology.
Although the four-item score could not be validated for mortality prediction, it had reasonable accuracy for predicting unfavorable functional outcome, defined as disability or mortality 3 months after ischemic stroke, Gian Marco De Marchis, MD, of the department of neurology and the stroke center at University Hospital Basel (Switzerland), said in a presentation.
“The use of a biomarker increases prognostic accuracy, allowing us to personalize prognosis in the frame of individualized, precision medicine,” Dr. De Marchis said.
Copeptin has been linked to disability and mortality at 3 months in two independent, large cohort studies of patients with ischemic stroke, he said.
The four-item prognostic score devised by Dr. De Marchis and his coinvestigators, which they call the CoRisk score, was developed based on a derivation cohort of 319 acute ischemic stroke patients and a validation cohort including another 783 patients in the Copeptin for Risk Stratification in Acute Stroke Patients (CoRisk) Study.
Diagnostic accuracy was 82% for the endpoint of unfavorable functional outcome at 3 months, according to Dr. De Marchis.
“The observed outcomes matched well with the expected outcomes,” he said in his presentation.
Further analyses demonstrated that the addition of copeptin indeed contributed to the diagnostic accuracy of the score, improving the classification for 46%; in other words, about half of the patients were reclassified based on addition of the biomarker data.
By contrast, the score is not well suited to predict mortality alone at 3 months, the results of the analyses showed.
The algorithm used to calculate the score based on its four variables is somewhat complex, but available as a free app and online calculator, Dr. De Marchis said.
Dr. De Marchis and his coauthors had nothing to disclose related to their study. A full report on the study was published ahead of print on March 1 in Neurology.
SOURCE: De Marchis GM et al. AAN 2019, Abstract S47.001.
REPORTING FROM AAN 2019
