Can a common supplement slow MS brain damage? new trial seeks answers.
NCT ID NCT05122559
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether N-acetyl cysteine (NAC), a supplement, can protect the brain in people with progressive multiple sclerosis (MS). About 98 adults with primary or secondary progressive MS will receive either NAC or a placebo for 15 months. Researchers will measure brain shrinkage on MRI scans and check safety and thinking abilities.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of California, San Francisco
San Francisco, California, 94158, United States
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