Drugs to calm harmful brain immune cells in multiple sclerosis

Development of Drugs that Modify CNS Innate Immunity for the Treatment of Multiple Sclerosis

['FUNDING_OTHER'] · BRIGHAM AND WOMEN'S HOSPITAL · NIH-10992089

Researchers are making new drugs that block a protein called EphB3 to try to reduce damaging astrocyte and microglia activity in people with progressive multiple sclerosis.

Quick facts

Phase['FUNDING_OTHER']
Study typeNih_funding
SexAll
SponsorBRIGHAM AND WOMEN'S HOSPITAL (nih funded)
Locations1 site (BOSTON, UNITED STATES)
Trial IDNIH-10992089 on ClinicalTrials.gov

What this research studies

The team is developing new versions of a lead compound (A-38) that blocks EphB3, a protein that appears to drive harmful astrocyte and microglia behavior in MS. They will synthesize up to 150 analogs and use lab assays to see which molecules reduce astrocyte pathogenic activities. Promising candidates will be tested for target blocking, potency, and properties that affect safety and crossing the blood-brain barrier. Compounds that pass these preclinical checks would be advanced toward animal studies and, eventually, early human trials for progressive MS.

Who could benefit from this research

Good fit: People with progressive multiple sclerosis, particularly those with ongoing neurodegeneration despite current treatments, would be the most likely future candidates for these therapies.

Not a fit: People with well-controlled relapsing-remitting MS or whose disease is driven mainly by peripheral immune mechanisms may not benefit from this astrocyte/microglia-targeted approach.

Why it matters

Potential benefit: If successful, these drugs could slow or prevent nerve damage in progressive multiple sclerosis by reducing harmful activity of brain support cells.

How similar studies have performed: Modulating microglia and astrocytes is an emerging area, and targeting EphB3 is a novel strategy that has promising preclinical signals but is largely untested in humans.

Where this research is happening

BOSTON, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.