๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-07-21

Study to Evaluate the Safety and Efficacy of PF-06939926 for the Treatment of Duchenne Muscular Dystrophy (NCT04281485)

A PHASE 3, MULTICENTER, RANDOMIZED, DOUBLE-BLIND, PLACEBO CONTROLLED STUDY TO EVALUATE THE SAFETY AND EFFICACY OF PF 06939926 FOR THE TREATMENT OF DUCHENNE MUSCULAR DYSTROPHY

๐Ÿ”ต Active, Not Recruiting Phase3 ๐Ÿ“‹ Clinical Research Protocol Sponsor: Pfizer

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

The study will evaluate the safety and efficacy of gene therapy in boys with DMD. It is a randomized, double-blind, placebo-controlled study with two thirds of participants assigned to gene therapy. The one third of participants who are randomized to the placebo arm will have an opportunity for treatment with gene therapy at the beginning of the second year.

Who can join: Review the eligibility criteria below.

Location: Arkansas Children's Hospital โ€” Little Rock, Arkansas

Age range: 4 Years to 7 Years

๐Ÿงช Interventions in This Study

  • PF-06939926 (GENETIC)
  • Placebo (OTHER)
  • Placebo (OTHER)
  • PF-06939926 (GENETIC)

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 (53 Sites)

Showing the first 25 of 53 sites.

  • Arkansas Children's Hospital โ€” Little Rock, Arkansas
  • Arkansas Children's โ€” Little Rock, Arkansas
  • UCLA Medical Center โ€” Los Angeles, California
  • University of Florida โ€” Gainesville, Florida
  • University of Iowa Hospitals and Clinics โ€” Iowa City, Iowa
  • KU Clinical Research Center - Clinical and Translational Science Unit (CTSU) - Fairway โ€” Fairway, Kansas
  • KU Clinical Research Center - Clinical and Translational Science Unit (CTSU) - Rainbow โ€” Kansas City, Kansas
  • University of Kansas Hospital - Investigational Pharmacy โ€” Kansas City, Kansas
  • University of Kansas Hospital - Pediatric and Pediatric ICU - Operating Room โ€” Kansas City, Kansas
  • University of Kansas Medical Center โ€” Kansas City, Kansas
  • Pediatric Cardiology โ€” Prairie Village, Kansas
  • Lenox Baker Children's Hospital โ€” Durham, North Carolina
  • The Children's Hospital of Philadelphia โ€” Philadelphia, Pennsylvania
  • Primary Childrens Hospital โ€” Salt Lake City, Utah
  • University of Utah Clinical Neurosciences Center โ€” Salt Lake City, Utah
  • University of Utah Hospital โ€” Salt Lake City, Utah
  • Seattle Children's โ€” Seattle, Washington
  • The Children's Hospital at Westmead โ€” Westmead, New South Wales
  • The Royal Children's Hospital Melbourne โ€” Parkville, Victoria
  • Perth Children's Hospital โ€” Nedlands, Western Australia
  • UZ Gent โ€” Ghent,
  • UZ leuven โ€” Leuven,
  • Alberta Children's Hospital โ€” Calgary, Alberta
  • Children's Hospital - London Health Sciences Centre โ€” London, Ontario
  • Childrens Hospital of Eastern Ontario โ€” Ottawa, Ontario

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. Review the official NIH record below to find the coordinating site.
  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†—