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NCT06100887: FOX

A Phase 2 Study to Evaluate the Effect of EDG-5506 on Safety, Pharmacokinetics, and Biomarkers in Children and Adolescents With Duchenne Muscular Dystrophy Previously Treated With Gene Therapy

Active, enrolled Phase 2 Last updated 5 November 2025
What this trial tests

Phase 2 trial testing Sevasemten Dose 1 in Duchenne Muscular Dystrophy in 43 participants. Participants enrolled and being followed up; not accepting new ones.

Timeline
22 March 2024
Primary endpoint
1 March 2027
1 March 2027

Quick facts

Lead sponsorEdgewise Therapeutics, Inc.
PhasePhase 2
StatusActive, enrolled
Study typeINTERVENTIONAL
Allocationrandomized
Designsequential
Maskingquadruple
Primary purposetreatment
Enrollment43
Start date22 March 2024
Primary completion1 March 2027
Estimated completion1 March 2027
Sites7 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

Edgewise Therapeutics, Inc. — full company profile →

Who can join

Adults 6 to 17, male only, with Duchenne Muscular Dystrophy. Patients with the condition only — healthy volunteers not accepted.

What's being measured

Primary outcomes are the specific endpoints the trial is designed to prove or disprove.

Sponsor's own description

The FOX study is a 2-part, multicenter, Phase 2 study of safety, pharmacokinetics, and biomarkers in children and adolescents with Duchenne muscular dystrophy previously treated with gene therapy including a randomized, double-blind, placebo-controlled Part A, followed by an open-label part B.

Publications & conference data

3 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Molecular mechanisms and therapeutic strategies for neuromuscular diseases.
    Zambon AA, Falzone YM, Bolino A, Previtali SC. · · 2024 · cited 7× · PMID 38678519 · DOI 10.1007/s00018-024-05229-9
  2. Molecular pathways involved in the control of contractile and metabolic properties of skeletal muscle fibers as potential therapeutic targets for Duchenne muscular dystrophy.
    Bonato A, Raparelli G, Caruso M. · · 2024 · cited 4× · PMID 39717824 · DOI 10.3389/fphys.2024.1496870
  3. A Phase 1, Double-Blind, Placebo-Controlled Trial of Sevasemten (EDG-5506), a Selective Modulator of Fast Skeletal Muscle Contraction, in Healthy Volunteers and Adults With Becker Muscular Dystrophy.
    Donovan J, Silverman JA, Barthel B, DuVall M, et al · · 2025 · cited 2× · PMID 40452637 · DOI 10.1002/mus.28444

Verify or expand the search:

Other recruiting trials for Duchenne Muscular Dystrophy

Currently open trials in the same condition.

Other Edgewise Therapeutics, Inc. trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06100887.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing