What the trial was testing
The trial enrolled 130 patients with multiple sclerosis. The study was sponsored by Sanofi and tracked outcomes across the full group of patients who matched the trial's eligibility profile.
It was mid-stage testing (phase 2/3). Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.
What the results showed
The 60 mg dose reduced new brain lesions by 87% in people with relapsing MS.
The Lancet. Neurology · 2021 · NCT03889639
These findings — that the highest dose dramatically reduced MS-related inflammation visible on brain scans — were published in the The Lancet. Neurology and represent the headline result of the study.
Researchers tracked outcomes across 130 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.
What this means for patients
For patients with multiple sclerosis, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.
What you can do now
This was a mid-stage study and tolebrutinib is not yet FDA-approved for multiple sclerosis. The results were promising enough that larger studies are now underway. If you have relapsing MS, ask your doctor about clinical trials testing tolebrutinib or other BTK inhibitors, or discuss currently approved disease-modifying therapies.
Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.
Open multiple sclerosis trials
The DANCEREX Proof-of-Concept Study for Chronic Neurological Disorders
The goal of this clinical trial is to test a new digital therapeutic solution which combines a holistic, multidimensional rehabilitation program based on dance and music with an innovative motivational system (DANCEREX-DTx) in Chronic Neurological Disorders (Multiple Sclerosis and pre-Mild Cognitive Impairment - MCI/ MCI at risk of Alzheimer's Disease). The main questions it aims to answer are 1\] efficacy of the digital therapeutic solution in terms of adherence, clinical/functional measures, quality of life and surrogate measures; 2\] usability and acceptability of the system. Participants will be randomized (with an allocation ratio of 2:2:1) into the experimental group (DANCEREX - 24 sessions of multidimensional dance-based program integrated with an innovative motivational system), active comparator group (24 sessions of multidimensional dance-based program) and placebo group (24 sessions of educational program). Researchers will compare the experimental group to the other two groups to see if a digital therapeutic solution integrating a multidimensional dance-based program and motivational system is effective in increasing adherence to rehabilitation treatment.
Effects of Sleep Quality on Functional and Cognitive Outcomes in Multiple Sclerosis
The goal of this observational study is to investigate the effects of sleep quality on cognitive flexibility, physical activity level, body awareness, and reaction time in individuals with Multiple Sclerosis. The main question it aims to answer is: Does sleep quality influence cognitive flexibility, physical activity level, body awareness, and reaction time in individuals with Multiple Sclerosis? Researchers will compare individuals with good and poor sleep quality to determine whether differences in sleep quality result in variations in cognitive and physical performance outcomes. Participants will complete standardized assessments of sleep quality, cognitive flexibility, physical activity, and body awareness, and will perform a computer-based reaction time test. In addition, participants will wear a wearable activity tracker for 7 days to objectively measure physical activity levels.