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An Open-Label Extension Study of Edasalonexent in Boys With Duchenne Muscular Dystrophy

An Open-Label Extension Study of Edasalonexent in Pediatric Patients With Duchenne Muscular Dystrophy

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03917719
Acronym
GalaxyDMD
Enrollment
130
Registered
2019-04-17
Start date
2019-03-14
Completion date
2020-10-26
Last updated
2020-11-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Duchenne Muscular Dystrophy

Keywords

Muscular Dystrophies, Musculoskeletal Diseases, Neuromuscular Diseases, DMD, dystrophin, dystrophy, Duchenne

Brief summary

The GalaxyDMD study is a global Phase 3, open-label, treatment extension study to evaluate the safety, tolerability, and durability of effect in long-term dosing of edasalonexent in pediatric patients with a genetically confirmed diagnosis of DMD. Patients who completed CAT-1004-201 or CAT-1004-301 or siblings of these boys from 4-12 years of age (up to 13th birthday) will be enrolled. Edasalonexent is an orally administered small molecule that inhibits NF-kB, which is a key link between loss of dystrophin and disease pathology and plays a fundamental role in the initiation and progression of skeletal and cardiac muscle disease in DMD.

Detailed description

The study includes a 104-week open-label treatment period with edasalonexent. Patients who completed CAT-1004-201 or CAT-1004-301 and eligible siblings of these boys will be enrolled in this trial.

Interventions

100 mg/kg/day

Sponsors

Catabasis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
4 Years to 12 Years
Healthy volunteers
No

Inclusion criteria

For Patients who Completed CAT-1004-201 or CAT-1004-301: Inclusion Criteria: * Written consent/assent by patient and/or legal guardian as per regional and/or Institutional Review Board (IRB)/Independent Ethics Committee (IEC) requirements * Completion of either CAT-1004-201 or CAT-1004-301

Exclusion criteria

* In the Investigator's opinion, unwilling or unable for any reason to complete all study assessments and laboratory tests and comply with scheduled visits, administration of drug, and all other study procedures For Siblings of Patients who Completed CAT-1004-201 or CAT-1004-301: Inclusion Criteria: * Written consent/assent by patient and/or legal guardian as per regional and/or Institutional Review Board (IRB)/Independent Ethics Committee (IEC) requirements * A sibling of a patient who completed either CAT-1004-201 or CAT-1004-301 * Diagnosis of DMD based on a clinical phenotype with increased serum creatine kinase (CK) and documentation of mutation(s) in the dystrophin gene known to be associated with a DMD phenotype * Followed by a doctor or medical professional who coordinates Duchenne care on a regular basis and willingness to disclose patient's study participation with medical professionals

Design outcomes

Primary

MeasureTime frame
Safety and tolerability of long-term treatment with edasalonexent measured by number of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs)104 Weeks

Secondary

MeasureTime frame
Durability of effects of edasalonexent on physical function as measured by the North Star Ambulatory Assessment (NSAA)104 Weeks
Durability of effects of edasalonexent on physical function as measured by the 10-meter walk/run test104 Weeks
Durability of effects of edasalonexent on physical function as measured by the time to stand from supine104 Weeks
Durability of effects of edasalonexent on physical function as measured by the 4-stair climb104 Weeks

Countries

Australia, Canada, Germany, Sweden, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026