RECRUITING Phase 1 ClinicalTrials.gov

Vancomycin Study in Multiple Sclerosis (MS)

Sponsor: Icahn School of Medicine at Mount Sinai • ClinicalTrials.gov ID: NCT05539729

Registry updated: 2026-09-28

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Description

The overall goal of this study is to elucidate a mechanism by which vancomycin modulates the gut-brain axis in multiple sclerosis (MS). The gut microbiome plays an important role in autoimmunity, including MS. However, the identity of gut microbes modulating neuroinflammation in MS and their mechanisms of action remain obscure. Hence, here the research team proposes to investigate the effects of vancomycin on the gut microbiota composition, peripheral immune function, and brain MRI lesions in MS patients.

Interventions

Vancomycin (Drug)
A marketed antibiotic (Study Drug) supplied by Amerisource Bergen, by the Mount Sinai Investigational Drug Services (IDS), and encapsulated in red coating to match the placebo.
Placebo (Drug)
Placebo created by the IDS and encapsulated in red coating to match the Study Drug.

Eligibility criteria

Inclusion Criteria: * aged 18 - 50 * newly diagnosed MS (2017 McDonald criteria), CIS or RIS patients, who have experienced symptoms no earlier than the past year * treatment naive * able to understand the risks, benefits, and alternatives of participation and give meaningful consent Exclusion Criteria: * antibiotic use within the past 90 days; * pre- or probiotic use within past month or corticosteroids use within the past month; * use of tobacco products within the past 1 month; * history of treatment with immunosuppressants; * history of gastroenteritis within the past month or diagnosis with a chronic infectious disease, i.e. hepatitis B, C or HIV; * pregnancy or less than 6 months postpartum; * irritable bowel syndrome and other bowel dysfunction such as constipation; * history of bowel surgery; * inflammatory bowel disease, rheumatoid arthritis, systemic lupus erythematosus, diabetes and any other auto-immune illness; * diagnosis with another neurological disease, behavioral or psychiatric conditions that would be incompatible with a safe and successful participation in the study (such as severe major depression, schizophrenia and presence of psychotic symptoms); * eating disorders such as anorexia nervosa, bulimia, or binge eating syndrome; * travel outside of the country within the past month; * contraindication to vancomycin including estimated glomerular filtration rate of \<60ml/min, impaired hearing or known allergy. * Contraindication to MRI such as implanted metallic objects

Conditions

Multiple Sclerosis

Locations

Corinne Goldsmith Dickinson Center for Multiple Sclerosis at Mount Sinai — New York, New York, United States

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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