๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-08-20

Study of MRM-3379 in Male Participants With Fragile X Syndrome (BLOOM) (NCT07209462)

Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study of MRM-3379 in Male Participants With Fragile X Syndrome

๐ŸŸข Recruiting Phase2 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: Mirum Pharmaceuticals, Inc.

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

This study is a multicenter, double-blind, randomized, placebo-controlled study to assess the safety and tolerability of 3 doses of MRM-3379 in male participants with Fragile X Syndrome ages 16 to 45 (inclusive). In addition, a parallel cohort of participants ages 13 to \<16 will receive open-label MRM-3379. All participants will participate for 12 weeks of treatment. The study is also intended as a proof-of-concept investigation to evaluate whether MRM-3379 can improve FXS symptoms

Who can join: Review the eligibility criteria below.

Location: Southwest Autism Research & Resource Center โ€” Phoenix, Arizona

Age range: 13 Years to 45 Years

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (15 Sites)

  • Southwest Autism Research & Resource Center โ€” Phoenix, Arizona
  • Amnova Clinical Research, LLC โ€” Irvine, California
  • Children's Hospital of Orange County - Pediatric Subspecialty โ€” Orange, California
  • Uc Davis Mind Institute โ€” Sacramento, California
  • Children's Hospital Colorado โ€” Aurora, Colorado
  • Neurology โ€” Miami, Florida
  • Emory University - The Emory Clinic - Clifton Road โ€” Atlanta, Georgia
  • Rush University Medical Center-Clinical Operation โ€” Chicago, Illinois
  • Kennedy Krieger Institute, John Hopkins School of Medicine โ€” Baltimore, Maryland
  • Boston Children's Hospital โ€” Boston, Massachusetts
  • UMass Memorial Health โ€” Worcester, Massachusetts
  • University of Minnesota Department of Medicine โ€” Minneapolis, Minnesota
  • Cincinnati Children's Hospital Medical Center โ€” Cincinnati, Ohio
  • Suburban Research Associates โ€” Media, Pennsylvania
  • Intermountain Healthcare - Park City Specialty Clinic โ€” Salt Lake City, Utah

๐Ÿ“ž Contact the Study Coordinator

Phone: (480) 351-0567

Email: rstark@autismcenter.org

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—