Marisa Wexler, MS,  senior science writer—

Pro-inflammatory signaling molecules that have been implicated in multiple sclerosis (MS) cause problems with the growth and development of myelin-making cells in the brain, according to a study done in cell models. The findings may have implications for treating MS, as promoting the growth of myelin-making cells could be…

People who experience adversity during childhood, such as abuse or neglect, may be at increased risk of multiple sclerosis (MS) and other autoimmune diseases, but available data that supports this association is generally low quality, a study reports. “Drawing concrete treatment recommendations is premature, given the low certainty of…

The Epstein-Barr virus (EBV) — a well-established risk factor for multiple sclerosis (MS) — is able to alter the movements of infected immune cells, a new study reveals. The findings shed new light on how EBV may set the stage for MS to develop, and could potentially form…

Tysabri (natalizumab), an approved treatment for forms of multiple sclerosis (MS), can be safely used during pregnancy or while breastfeeding, a study showed. “The findings of our observational study offer … relevant insight into the safety profile of [Tysabri] therapy not only during pregnancy but also during breastfeeding,”…

Treatment with masitinib, an experimental therapy being developed by AB Science for progressive forms of multiple sclerosis (MS), reduced markers of nerve damage and inflammation and slowed disease progression in a mouse model of MS. “This study is the first to demonstrate that masitinib can lower serum NfL…

Quantum Biopharma intends to ask the U.S. Food and Drug Administration (FDA) this year for permission to start a Phase 2 clinical trial testing Lucid-21-302, its novel therapy for promoting myelin repair, in people with multiple sclerosis (MS). The company announced that it has completed dosing in a…

Elevated levels of two bacterial strains from the Lachnospiraceae family in the gut may be a key risk factor for multiple sclerosis (MS), according to a study. The study, “Multiple sclerosis and gut microbiota: Lachnospiraceae from the ileum of MS twins trigger MS-like disease in germfree…

The U.S. Food and Drug Administration (FDA) has approved a new generic form of glatiramer acetate injection, a treatment for relapsing forms of multiple sclerosis (MS) that was originally approved under the brand name Copaxone. The generic was developed by Zydus Lifesciences in collaboration with Chemi S.p.A.,…

In people with relapsing forms of multiple sclerosis (MS) treated with Ocrevus (ocrelizumab), levels of B-cells can help to predict the risk of progression independent of relapse activity, a new study reports. “Our results unveil a discernible relationship between the degree of B-cell depletion and disease progression in…

People with multiple sclerosis (MS) who experience progression independent of relapse activity (PIRA) tend to have greater damage to major white matter tracts, or bundles of nerve fibers that connect different regions of the brain, a new study reports. The findings offer some insights into the biological processes that…

Foralumab was well tolerated in people with nonactive secondary progressive multiple sclerosis (SPMS), according to data from a small, open-label study conducted under an expanded access program. The therapy, being developed by Tiziana Life Sciences, also eased fatigue and lessened disability in some participants. The promising findings formed…

Certain lesions in the spinal cords of people with multiple sclerosis (MS) show damage to nerve fibers despite having normal myelin, according to a study done on postmortem samples using powerful MRI scans paired with detailed tissue analyses. The identification of these lesions “provides a novel opportunity to detect…

Wider rims of immune cells surrounding multiple sclerosis (MS) lesions in the brain and spinal cord are associated with faster disease progression, a new study shows. Monitoring this type of lesion may help track MS disease progression and measure how the disease is responding to treatment, and the…

A new machine learning tool, a form of artificial intelligence (AI), may accurately detect the transition from relapsing-remitting multiple sclerosis (RRMS) to secondary progressive multiple sclerosis (SPMS) — and may be able to do so even earlier than clinicians can — a new study showed. According to the…

New diagnostic criteria and biomarkers, how to manage MS in older patients and children, and vaccine recommendations are among topics covered in a new set of guidelines for best practices in multiple sclerosis (MS) care. The Consortium of Multiple Sclerosis Centers, a network of more than 15,000 clinicians…

Assessing multiple sclerosis (MS) disease activity using Octave Bioscience’s MS Disease Activity (MSDA) blood biomarker test can help guide clinicians’ decisions about care, a study showed. “Our goal is to empower both providers and patients with precision tools that transform MS care,” Doug Biehn, CEO of Octave, said…

Some exercises are better than others at easing certain problems associated with balance in people with multiple sclerosis (MS), and the most effective type may depend on a patient’s specific issue, a small study suggested. The findings “provide valuable insights into the long-term effects of these exercises,” the researchers…

People with multiple sclerosis (MS) who live in rural areas are 17% less likely to receive disease-modifying therapies (DMTs) than those in urban regions, a study involving people from the Canadian province of Alberta suggested. The likelihood was lower when considering therapies that are highly effective at controlling…

Sanofi‘s oral BTK inhibitor tolebrutinib significantly delayed the onset of six-month confirmed disability progression compared with a placebo, by 31%, in people with nonrelapsing secondary progressive multiple sclerosis (SPMS). That’s according to recently published data from the HERCULES Phase 3 trial (NCT04411641), where the experimental therapy…

A new artificial intelligence (AI) tool called MindGlide can accurately calculate, from a single MRI scan, multiple aspects of brain damage related to multiple sclerosis (MS) — even when employed with routine scans that are not typically used to monitor such damage. The development and validation of the tool…

The patient support program Cycle Vita, which assists patients throughout the process of medical prescriptions, is now available for people taking the multiple sclerosis (MS) medication Bafiertam (monomethyl fumarate). That’s according to Cycle Pharmaceuticals, in an announcement a few months after the company acquired Banner…

A small molecule that blocks the activity of a protein called TYK2 in the brain showed promise at reducing disease activity in mouse models of multiple sclerosis (MS), according to a study. The study was conducted by Neuron23, which is advancing a small molecule TYK2 inhibitor called NEU-627…

Note: This story was updated April 4, 2025, to clarify the specific disability measures and that tolebrutinib is believed to target smoldering neuroinflammation. The U.S. Food and Drug Administration (FDA) has granted priority review to an application from Sanofi seeking the approval of its BTK inhibitor…

Treatment with Tysabri (natalizumab) may help delay disability progression in people with secondary progressive multiple sclerosis (SPMS) over Rebif (interferon beta-1a), an analysis of data from two clinical trials suggests. While the trials initially failed to demonstrate slowing disease progression, a significant benefit was observed when accounting…

Artificial intelligence (AI) platforms did better than most neurologists at answering a 20-question assessment about multiple sclerosis (MS) in a recent study, suggesting that AI may be a helpful tool for MS care. Neurologists with an MS specialty scored as well, on average, as the AI platforms, while neurology…

Antibodies that target proteins from the Epstein-Barr virus (EBV) also can inadvertently attack proteins in the brain, which may help to explain the link between EBV and multiple sclerosis (MS), a new study shows. Findings also indicate that antibodies targeting EBV as well as a person’s genetics both…

In the lymph nodes of the neck of people with multiple sclerosis (MS), certain immune cells show abnormalities in activity and signs of reactions against the Epstein-Barr virus (EBV), a new study reports. The findings may help to explain the connection between MS and EBV, researchers said. The study,…

In people with multiple sclerosis (MS), lesions that get slowly bigger over time, potentially due to chronic inflammation, are associated with more myelin loss throughout the brain, a study found. Loss of myelin was observed in these slowly expanding lesions, in other types of lesions, and also in regions…

A statistical model that takes clinical and demographic factors into account could help guide treatment decisions in people with relapsing-remitting multiple sclerosis (RRMS) who haven’t yet started on a multiple sclerosis (MS) therapy, a study reports. “Our study offers a predictive tool that fulfills an unmet need for…

Antibodies against a protein found in neurons and in nerve supporting cells, may play a role in driving multiple sclerosis (MS), a study indicates. Researchers examined immune responses against more than 23,000 human proteins, and the MLC1 protein emerged as one of the top hit proteins targeted by immune…