A Study to Evaluate Del-brax (Also Referred to as AOC 1020) in Participants With FSHD

Purpose

A Randomized, Double-blind, Placebo-controlled, Phase 3 Study to Evaluate the Efficacy and Safety of Intravenous AOC 1020 for the Treatment of Facioscapulohumeral Muscular Dystrophy (FSHD)

Conditions

  • Facioscapulohumeral Muscular Dystrophy
  • FSHD
  • FSHD - Facioscapulohumeral Muscular Dystrophy
  • FSHD1
  • FSHD2
  • Fascioscapulohumeral Muscular Dystrophy
  • Fascioscapulohumeral Muscular Dystrophy Type 1
  • Fascioscapulohumeral Muscular Dystrophy Type 2
  • Facioscapulohumeral Muscular Dystrophy 1
  • Facioscapulohumeral Dystrophy
  • Facio-Scapulo-Humeral Dystrophy
  • Facioscapulohumeral Muscular Dystrophy 2
  • Facioscapulohumeral Muscular Dystrophy Type 1 (FSHD1)
  • FSH Muscular Dystrophy
  • Landouzy Dejerine Dystrophy
  • Landouzy-Dejerine Muscular Dystrophy
  • Landouzy-Dejerine Syndrome

Eligibility

Eligible Ages
Between 16 Years and 70 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Clinical and genetic diagnosis of FSHD1 or FSHD2 - Ability to walk independently at pre-specified walking speed (orthoses and ankle braces allowed) for at least 10 meters at screening - Adequate muscle strength based on QMT composite score

Exclusion Criteria

  • Breastfeeding, pregnancy, or intent to become pregnant during the study - Unwilling or unable to comply with contraceptive requirements - Abnormal lab values, conditions or diseases that would make the participant unsuitable for the study - Blood Pressure > 140/90 mmHg at Screening - Treatment with another investigational drug or biological agent within 1 month of Screening or 5 half-lives of the drug, whichever is longer - Treatment with an oligonucleotide within 9 months of Screening

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
del-brax
Del-brax (AOC 1020) will be administered 13 times
  • Drug: AOC-1020
    Placebo
    Other names:
    • del-brax
Placebo Comparator
placebo
Saline will be administered 13 times
  • Drug: Placebo
    Placebo will be administered by intravenous (IV) infusion.
    Other names:
    • saline

Recruiting Locations

University of Rochester Medical Center
Rochester, New York 14642

More Details

NCT ID
NCT07038200
Status
Recruiting
Sponsor
Avidity Biosciences, Inc.

Study Contact

Avidity Biosciences, Inc.
858-771-7038
medinfo@aviditybio.com

Detailed Description

The study consists of a Screening Period of up to 6 weeks and 72-week Treatment Period. The anticipated duration is approximately 78 weeks. Participants will be randomized to receive an intravenous infusion of either del-brax or placebo at the clinical study site every 6 weeks for a total of 13 doses. The final dose will occur at Week 72, followed by a final assessment at Week 78. After completion of the Week 78 visit, eligible participants will have the option to enroll into an open label extension (OLE) study, pending regulatory approval. Participants who decline participation in the OLE will be followed for a period of 12 weeks for safety. An Independent Data Monitoring Committee (IDMC) comprising members independent and external to the Sponsor will review safety, tolerability, and efficacy (as needed) data of this study at regular intervals.