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Research Study: International MS Microbiome Study


Treatment mode of action: n/a
Number of Subjects: 2000
Medication: n/a
Location: California|Massachusetts|New York|Pennsylvania
Institutions: University of California, San Francisco Contact Information
IMSMS - San Francisco
(415) 502-7197


Valhalla Charitable Foundation


This study aims to understand the role of gut bacteria in MS, and by extension allows us to look at the effects of diet and environment on the gut microbiome and MS disease susceptibility and progression. For this study, we are asking that participants donate blood and stool samples, and complete a set of dietary and demographic questionnaires.

People with all types of MS are eligible (ages 18-80), including clinically isolated syndrome (CIS), a first episode of neurologic symptoms that lasts at least 24 hours and is caused by inflammation or demyelination.

Please Note: Participation in this study does require a one-time visit to any one of our recruiting centers (please see list below). We are actively recruiting participants in pairs, so one person living with MS, and a genetically-unrelated person who lives in the same household.

If you are interested in participating, please fill out this survey link below, and one of our coordinators will be in touch to discuss eligibility.

Recruiting Centers

  • University of California, San Francisco (San Francisco, CA)
  • University of California, San Diego (San Diego, CA)
  • Brigham and Women's Hospital (Boston, MA)
  • Mount Sinai School of Medicine (New York, NY)
  • University of Pittsburgh (Pittsburgh, PA)
  • University of Pennsylvania (Philadelphia, PA)


© 2023 The National Multiple Sclerosis Society is a tax exempt 501(c)3 nonprofit organization. Its Identification Number (EIN) is 13-5661935.