Pain relief drug for mast cell disorder fails to reach goal

NCT ID NCT05652907

First seen May 01, 2026 · Last updated May 14, 2026 · Updated 5 times

Summary

This study tested whether FSD201 could reduce daily pain in adults with chronic widespread pain caused by mast cell activation syndrome. Only 2 people enrolled before the trial was stopped early. Participants took FSD201 or a placebo for up to 56 days and reported their pain levels. The main goal was a 30% pain reduction after 28 days.

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Contacts and locations

Locations

  • Norman Marcus Pain Institute

    New York, New York, 10016, United States

  • Saint Charles Clinical Research

    Weldon Spring, Missouri, 63304, United States

  • Toronto Rehabilitation Institute

    Toronto, Ontario, Canada

Conditions

Explore the condition pages connected to this study.