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Enrolling by invitationPhase 2

Long-term study of sevasemten in Becker muscular dystrophy

Tests sevasemten over time in teens and adults with Becker muscular dystrophy.

Plain-language title generated from the registry record
Registry title: Open-Label Extension of EDG-5506 in Participants With Becker Muscular Dystrophy

Key facts

Where
Milan, Padova, and Rome, ItalySee the 3 sites
Phase
Phase 2

Where in Italy

  • Fondazione IRCCS Ca' Granda Ospedale MaggioreMilan, ItalyNo longer taking part
  • Azienda Ospedale Universita PadovaPadova, ItalyNo longer taking part
  • Fondazione Policlinico Universitario A. Gemelli IRCCS - Universita Cattolica del Sacro CuoreRome, ItalyNo longer taking part

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Edgewise Therapeutics, Inc.
Trial code
NCT06066580
Record updated
17 September 2026
Original description
EDG-5506-203 MESA is an open-label extension study to assess the long-term effect of sevasemten (EDG-5506) on safety, biomarkers, and functional measures in adults and adolescents with Becker muscular dystrophyRead full original descriptionShow less

An Open-Label Extension Study to Assess the Long-term Effect of EDG-5506 on Safety, Biomarkers, and Functional Measures in Adults and Adolescents With Becker Muscular Dystrophy

EDG-5506-203 MESA is an open-label extension study to assess the long-term effect of sevasemten (EDG-5506) on safety, biomarkers, and functional measures in adults and adolescents with Becker muscular dystrophy

Inclusion: Males with a diagnosis of BMD and participation in EDG-5506-002 ARCH, EDG-5506-201 CANYON and GRAND CANYON, or EDG-5506-202 DUNE. Participants are eligible if they complete the respective prior study visits as follows:; EDG-5506-002 ARCH: Complete the final study Visit 27 [Month 24]; or, completion of the ET visit prior to Visit 27 [Month 24]; EDG-5506-201 CANYON and GRAND CANYON: Complete the final study visit (Cohorts 1, 2, 4, and 5: Visit 12 [Month 12]; Cohort 6: Visit 11 [Month 18]); EDG-5506-202 DUNE: Complete at least 36 weeks of open-label treatment (Visit 14 [Week 52]).

Exclusion: Receiving moderate or strong cytochrome P450 CYP3A4 inhibitors or inducers; Receipt of an investigational drug other than sevasemten within 30 days or 5 half-lives (whichever is longer) of dosing in the present study; Receipt of oral corticosteroids for the treatment of BMD in the previous 6 months; Any clinically significant changes during or following participation in EDG-5506-002, EDG-5506-201, or EDG-5506-202 that would affect the potential safety of the participant to receive sevasemten.

ClinicalTrials.gov NCT06066580