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NCT07038200PHASE3Recruiting

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

Avidity Biosciences, Inc.

Start Date

6/10/2025

Completion Date

7/1/2028

Summary

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)

Detailed Description

The study duration is approximately 22 months, consisting of a screening period of up to 6 weeks, a 78-week active treatment period, and a 12-week follow-up period (18 weeks from the last dose). Participants will be randomized to receive an intravenous infusion of either delbrax 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 in an open-label extension (OLE) study, pending regulatory approval. Participants who decline participation in the OLE will be followed for 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.

Eligibility Criteria

Age Range: 16 years to 70 years

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

Interventions

DRUG

AOC-1020

DRUG

Placebo

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Conditions

Facioscapulohumeral Muscular DystrophyFSHDFSHD - Facioscapulohumeral Muscular DystrophyFSHD1FSHD2Fascioscapulohumeral Muscular DystrophyFascioscapulohumeral Muscular Dystrophy Type 1Fascioscapulohumeral Muscular Dystrophy Type 2Facioscapulohumeral Muscular Dystrophy 1Facioscapulohumeral DystrophyFacio-Scapulo-Humeral DystrophyFacioscapulohumeral Muscular Dystrophy 2Facioscapulohumeral Muscular Dystrophy Type 1 (FSHD1)FSH Muscular DystrophyLandouzy Dejerine DystrophyLandouzy-Dejerine Muscular DystrophyLandouzy-Dejerine Syndrome

Locations

University of California Irvine

Orange, California 92868

United States

Stanford University

Palo Alto, California 94304

United States

University of Colorado

Denver, Colorado 80045

United States

University of Florida

Gainesville, Florida 32608

United States

University of Iowa

Iowa City, Iowa 52242

United States

Kansas University Medical Center

Kansas City, Kansas 66205

United States

Kennedy Krieger Institute

Baltimore, Maryland 21205

United States

University of Massachusetts

Worcester, Massachusetts 01655

United States

University of Rochester Medical Center

Rochester, New York 14642

United States

Duke University

Durham, North Carolina 27708

United States

Ohio State University

Columbus, Ohio 43221

United States

University of Pennsylvania

Philadelphia, Pennsylvania 19104

United States

University of Texas Health Science Center at San Antonio

San Antonio, Texas 78229

United States

Virginia Commonwealth University

Richmond, Virginia 23298

United States

University of Calgary - Cumming School of Medicine

Calgary, Alberta

Canada

University of Alberta Hospital

Edmonton, Alberta

Canada

The Ottawa Hospital

Ottawa, Ontario

Canada

Genge Partners Inc

Montreal, Quebec

Canada

Aarhus University Hospital

Aarhus,

Denmark

Rigshospitalet

Copenhagen,

Denmark

Centre de Reference des Maladies Neuromusculaires et de la SLA - AP-HM Hopital de La Timone

Marseille,

France

CHU de Montpellier - Hopital Gui de Chauliac

Montpellier,

France

CHU de Nice - Hopital Pasteur 2 - Centre de reference des Maladies Neuromusculaires

Nice,

France

AP-HP Hopital Pitie-Salpetriere

Paris,

France

Universitaetsklinikum Bonn

Bonn,

Germany

Georg-August-Universitaet Goettingen Stiftung oeffentlichen Rechts Universitaetsmedizin Goettingen

Göttingen,

Germany

Klinikum der Ludwig-Maximilians-Universitaet Muenchen

München,

Germany

Universitaetsklinikum Ulm

Ulm,

Germany

Fondazione Serena ETS - Centro Clinico NeMO Milano

Milan,

Italy

Azienda Ospedaliero Universitaria Pisana

Pisa,

Italy

Azienda Ospedaliero-Universitaria Sant'Andrea

Roma,

Italy

Fondazione Policlinico Universitario A. Gemelli IRCCS - Universita Cattolica del Sacro Cuore

Roma,

Italy

National Hospital Organization Osaka Toneyama Medical Center

Osaka,

Japan

The University of Osaka Hospital

Osaka,

Japan

National Hospital Organization Sendai Nishitaga Hospital

Sendai,

Japan

National Center of Neurology and Psychiatry

Tokyo,

Japan

Academisch Ziekenhuis Leiden

Leiden,

Netherlands

Stichting Radboud Universitair Medisch Centrum

Nijmegen,

Netherlands

Hospital Universitari de Bellvitge

Barcelona,

Spain

Hospital Universitario Vall d'Hebron

Barcelona,

Spain

Hospital Universitario Donostia

San Sebastián,

Spain

Hospital Universitari i Politecnic La Fe

Valencia,

Spain

National Hospital for Neurology & Neurosurgery

London,

United Kingdom

St. George's University Hospitals NHS Foundation Trust

London,

United Kingdom

Royal Victoria Infirmary

Newcastle upon Tyne,

United Kingdom

Royal Hallamshire Hospital

Sheffield,

United Kingdom