Clinical trial Recruiting at 8 sites Observational Ages 2 and up Men only

Observing long-term safety of Vamorolone in boys with Duchenne Muscular Dystrophy

Official title: Registry Study to Observe Long-term Safety of Vamorolone (AGAMREE®) in Patients With Duchenne Muscular Dystrophy [SUpplemental Patient dMd assessMents Investigating ouTcomes (SUMMIT)]

Run by Catalyst Pharmaceuticals, Inc. · NCT06564974 · Data updated 2026-11-12

This study is looking at how safe the drug Vamorolone is for boys with Duchenne Muscular Dystrophy and how it affects their quality of life over five years.

More Duchenne Muscular Dystrophy trials

Quick facts

Study typeObservational
Ages2 Years and up
SexMen only
Enrollment250 (estimated)
SponsorCatalyst Pharmaceuticals, Inc.
Industry-sponsored
Locations33 sites (Phoenix, Arizona and 32 other locations)
StatusRecruiting
StartedSeptember 25, 2024
Main results expectedFebruary 2032
Study endsFebruary 2032
Registry record updatedSeptember 24, 2026
Trial IDNCT06564974 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are male patients aged 2 years and older who have a confirmed diagnosis of Duchenne Muscular Dystrophy and are currently being treated with AGAMREE®.

Probably not a fit

Patients who have contraindications to AGAMREE® or other medical conditions that could affect their participation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational registry study aims to monitor the long-term safety and quality of life of male patients aged 2 years and older who are being treated with the FDA-approved drug AGAMREE® for Duchenne Muscular Dystrophy (DMD). Conducted across approximately 25 sites in the US, the study plans to enroll around 250 participants and will follow them for about 5 years. Evaluations will include various health parameters such as growth, physical performance, cardiovascular status, and quality of life, with yearly follow-up visits to collect comprehensive data.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the long-term safety and effectiveness of Vamorolone for patients with Duchenne Muscular Dystrophy.

How similar studies have gone: While this study is observational, similar approaches in monitoring long-term safety and quality of life in DMD patients have shown promise, indicating potential for valuable findings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patient or parent/legal guardian is willing and able to provide written informed consent once the nature of the registry has been explained and prior to the start of any registry-related procedures.
2. Patient and/or parent/guardian are willing and able to complete QoL questionnaires.
3. Male patients at least 2 years old.
4. Confirmed diagnosis of DMD (via genetic testing or muscle biopsy with absent dystrophin staining to anti- dystrophin antibodies 3, 1, or 2, or dystrophin immunohistochemistry or western blot).
5. Patient has a current, active prescription for, or is on, AGAMREE®.

Exclusion Criteria:

1\. Any contraindication to AGAMREE® or medical condition, which, in the opinion of the Investigator, would affect registry participation, performance, or interpretation of registry assessments.

Where it's running

  • Phoenix Children's Hospital
    Phoenix, Arizona, United States
    Recruiting
  • Loma Linda University Pediatric Subspecialty Clinics
    Loma Linda, California, United States
    Recruiting
  • University of California, Davis
    Sacramento, California, United States
    Recruiting
  • University of Florida Clinical and Translational Science Institue
    Gainesville, Florida, United States
    Recruiting
  • Johns Hopkins All Children's Hospital
    St. Petersburg, Florida, United States
    Recruiting
  • Cincinnati Children's Hospital Medical Center
    Cincinnati, Ohio, United States
    Recruiting
Show 27 more locations
  • The University of Texas Health Science Center at San Antonio
    San Antonio, Texas, United States
    Recruiting
  • San Jorge Children's Hospital
    San Juan, Puerto Rico, Puerto Rico
    Recruiting
  • Arkansas Childrens Hospital
    Little Rock, Arkansas, United States
    Enrolling by invitation
  • Children's Hospital Los Angeles
    Los Angeles, California, United States
    Not yet recruiting
  • Valley Children's Hospital
    Madera, California, United States
    Not yet recruiting
  • Stanford University
    Palo Alto, California, United States
    Not yet recruiting
  • Children's National Health System
    Washington D.C., District of Columbia, United States
    Not yet recruiting
  • University of Miami
    Miami, Florida, United States
    Not yet recruiting
  • Nicklaus Children's Hospital
    Miami, Florida, United States
    Enrolling by invitation
  • Nemours Children's Hospital
    Orlando, Florida, United States
    Enrolling by invitation
  • Lurie Children's Hospital of Chicago
    Chicago, Illinois, United States
    Enrolling by invitation
  • Indiana University Health - Riley Hospital for Children
    Indianapolis, Indiana, United States
    Enrolling by invitation
  • University of Kansas Medical Center
    Kansas City, Kansas, United States
    Enrolling by invitation
  • University of Massachusetts Memorial Medical Center
    North Worcester, Massachusetts, United States
    Enrolling by invitation
  • Helen DeVos Children's Hospital
    Grand Rapids, Michigan, United States
    Enrolling by invitation
  • Masonic Children's Hospital - Discovery Clinic
    Minneapolis, Minnesota, United States
    Not yet recruiting
  • The Children's Hospital at Montefiore
    The Bronx, New York, United States
    Not yet recruiting
  • Atrium Health Neurosciences Institute
    Charlotte, North Carolina, United States
    Enrolling by invitation
  • Duke University Medical Center and Childrens Health Center
    Durham, North Carolina, United States
    Enrolling by invitation
  • Penn State Milton S. Hershey Medical Center- Penn State Hershey Neuroscience Institute
    Hershey, Pennsylvania, United States
    Enrolling by invitation
  • Children's Hospital of Philadelphia (CHOP)
    Philadelphia, Pennsylvania, United States
    Enrolling by invitation
  • University of Texas Southwestern Medical Center
    Dallas, Texas, United States
    Enrolling by invitation
  • Neurology Rare Disease Center - Neurology & Neuromuscular Care Center
    Denton, Texas, United States
    Enrolling by invitation
  • University of Virginia Health System (UVAHS) - Pediatric Neuromuscular Center
    Charlottesville, Virginia, United States
    Enrolling by invitation
  • Seattle Children's Hospital
    Seattle, Washington, United States
    Enrolling by invitation
  • Children's Wisconsin
    Milwaukee, Wisconsin, United States
    Not yet recruiting
  • FDI Clinical Research
    San Juan, Puerto Rico, Puerto Rico
    Enrolling by invitation

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.