A Gene Transfer Therapy Study to Evaluate the Safety and Efficacy of Delandistrogene Moxeparvovec (SRP-9001) in Non-Ambulatory and Ambulatory Participants With Duchenne Muscular Dystrophy (DMD)

NCT ID: NCT05881408

Last Updated: 2025-06-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

148 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-31

Study Completion Date

2028-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The study will evaluate the safety and efficacy of delandistrogene moxeparvovec gene transfer therapy in non-ambulatory and ambulatory males with DMD. This is a randomized, double-blind, placebo-controlled 2-part study. Participants will be in the study for approximately 128 weeks. All participants will have the opportunity to receive intravenous (IV) delandistrogene moxeparvovec in either Part 1 or Part 2.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Duchenne Muscular Dystrophy

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Delandistrogene Moxeparvovec followed by Placebo

Participants will receive single IV infusion of delandistrogene moxeparvovec on Day 1. Then, participants will receive a single IV infusion of matching placebo at approximately 72 weeks.

Group Type EXPERIMENTAL

delandistrogene moxeparvovec

Intervention Type GENETIC

Single IV infusion of delandistrogene moxeparvovec

placebo

Intervention Type GENETIC

Single IV infusion of matching placebo

Placebo followed by Delandistrogene Moxeparvovec

Participants will receive matching placebo IV infusion on Day 1. Then, participants will have the opportunity to receive a single IV infusion of delandistrogene moxeparvovec at approximately 72 weeks.

Group Type PLACEBO_COMPARATOR

delandistrogene moxeparvovec

Intervention Type GENETIC

Single IV infusion of delandistrogene moxeparvovec

placebo

Intervention Type GENETIC

Single IV infusion of matching placebo

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

delandistrogene moxeparvovec

Single IV infusion of delandistrogene moxeparvovec

Intervention Type GENETIC

placebo

Single IV infusion of matching placebo

Intervention Type GENETIC

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

SRP-9001 delandistrogene moxeparvovec-rokl ELEVIDYS

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Definitive diagnosis of DMD based on documented clinical findings and prior genetic testing.
* Cohort 1 only: Non-ambulatory per protocol-specified criteria.
* Cohort 2 only: Ambulatory per protocol-specified criteria and ≥8 to \<18 years of age at the time of Screening.
* Ability to cooperate with motor assessment testing.
* Stable daily dose of oral corticosteroids for at least 12 weeks prior to Screening, and the dose is expected to remain constant throughout the study (except for modifications to accommodate changes in weight).
* Recombinant Adeno-Associated Virus Serotype rh74 (rAAVrh74) antibody titers are not elevated as per protocol-specified requirements.
* A pathogenic frameshift mutation or premature stop codon in the DMD gene, except for any deletion mutations in exon 8 and/or 9.

Exclusion Criteria

* Exposure to gene therapy, investigational medication, or any treatment designed to increase dystrophin expression within protocol specified time limits.
* Abnormality in protocol-specified diagnostic evaluations or laboratory tests.
* Presence of any other clinically significant illness, medical condition, or requirement for chronic drug treatment that in the opinion of the Investigator creates unnecessary risk for gene transfer.
Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Hoffmann-La Roche

INDUSTRY

Sponsor Role collaborator

Sarepta Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Medical Director

Role: STUDY_DIRECTOR

Sarepta Therapeutics, Inc.

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Arkansas Children's Hospital

Little Rock, Arkansas, United States

Site Status

Lucile Packard Children's Hospital Stanford

Palo Alto, California, United States

Site Status

University of California at Davis Medical Center

Sacramento, California, United States

Site Status

Rady Children's Hospital-San Diego

San Diego, California, United States

Site Status

University of Florida, UF Health Center for Pediatric Neuromuscular and Rare Diseases

Gainesville, Florida, United States

Site Status

Ann & Robert H. Lurie Children's Hospital of Chicago

Chicago, Illinois, United States

Site Status

The Johns Hopkins Hospital, Charlotte R. Bloomberg Children's Center, Pediatric Clinical Research Unit

Baltimore, Maryland, United States

Site Status

Boston Children's Hospital

Boston, Massachusetts, United States

Site Status

Washington University of St. Louis, St. Louis Children's Hospital

St Louis, Missouri, United States

Site Status

University of Rochester, Department of Neurology

Rochester, New York, United States

Site Status

Lenox Baker Children's Hospital (Duke University)

Durham, North Carolina, United States

Site Status

Nationwide Children's Hospital

Columbus, Ohio, United States

Site Status

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

Children's Hospital of the King's Daughters

Norfolk, Virginia, United States

Site Status

The Children's Hospital at Westmead

Westmead, New South Wales, Australia

Site Status

The Royal Children's Hospital

Parkville, Victoria, Australia

Site Status

Universitair Ziekenhuis Gent

Ghent, Oost-Vlaanderen, Belgium

Site Status

The Children's Hospital of Eastern Ontario

Ottawa, Ontario, Canada

Site Status

Research Institute McGill University Health Centre

Montreal, Quebec, Canada

Site Status

Centre Hospitalier Universitaire de Québec - Université Laval (pavillon Centre Hospitalier Universitaire Laval)

Québec, , Canada

Site Status

LMU- Klinikum der Universitat Munchen, Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, Abeteilung Neuropadiatrie, Campus Innenstadt

München, Bavaria, Germany

Site Status

Universitatsklinikum Essen, Klinik fur Kinderheilkunde I, Abteilung Neuropadiatrie Essen

Essen, North Rhine-Westphalia, Germany

Site Status

Universitatsklinikum Hamburg Eppendorf

Hamburg, , Germany

Site Status

Hong Kong Children's Hospital

Hong Kong, , Hong Kong

Site Status

Institute of Neruology, Schneider Children's Medical Center of Israel

Petah Tikva, , Israel

Site Status

Tel Aviv Sourasky Medical Center

Tel Aviv, , Israel

Site Status

U.O.S.D Centro Traslazionale di Miologia e Patologie Neurodegenerative, Istituto G. Gaslini, Istituto Pediatrico di Ricovero e Cura a Carattere Scientifico

Genova, , Italy

Site Status

UOC Neurologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico

Milan, , Italy

Site Status

IRCCS Istituto Neurologico Carlo Besta Neurepsichiatria Infantile 2 - Epilettologia e Neurologia dello Sviluppo

Milan, , Italy

Site Status

UOC Neuropsichiatria Infantile, Area Salute del Bambino, Fondazione Policlinico Universitario A. Gemelli IRCCS

Roma, , Italy

Site Status

National Hospital Organization Osaka Toneyama Medical Center

Toyonaka-shi, Osaka, Japan

Site Status

National Center of Neurology and Psychiatry

Kodaira, Tokyo, Japan

Site Status

Tokyo Women's Medical University Hospital

Shinjuku-ku, Tokyo, Japan

Site Status

Pusan National University Yangsan Hospital

Yangsan, Gyeongsangnam-do, South Korea

Site Status

Seoul National University Hospital

Seoul, NAP, South Korea

Site Status

Kyungpook National University Hospital

Daegu, , South Korea

Site Status

Gangnam Severance Hospital, Yonsei University Health System

Seoul, , South Korea

Site Status

Hospital Sant Joan de Deu

Esplugues de Llobregat, Barcelona, Spain

Site Status

Hospital Universitari Politecnic La Fe

Valencia, , Spain

Site Status

Sahlgrenska Universitetssjukhuset

Gothenburg, , Sweden

Site Status

Karolinska Universitetssjukhuset/Astrid Lindgrens Barnsjukhus, Barnneurologen

Solna, , Sweden

Site Status

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, , Taiwan

Site Status

National Taiwan University Hospital

Taipei, , Taiwan

Site Status

Great Ormond Street Hospital for Children Foundation Trust

London, Greater London, United Kingdom

Site Status

Oxford University Hospitals NHS Foundation Trust

Oxford, Oxfordshire, United Kingdom

Site Status

Institute of Translational and Clinical Research

Newcastle upon Tyne, , United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States Australia Belgium Canada Germany Hong Kong Israel Italy Japan South Korea Spain Sweden Taiwan United Kingdom

Related Links

Access external resources that provide additional context or updates about the study.

https://clinicaltrials.sarepta.com/ENVISION

Click here to access the website, clinicaltrials.sarepta.com/ENVISION, for additional information for the study.

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2020-002372-13

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

2024-512626-28-00

Identifier Type: OTHER

Identifier Source: secondary_id

SRP-9001-303

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Phase I/II Study of SRP-4053 in DMD Patients
NCT02310906 COMPLETED PHASE1/PHASE2
Study of Eteplirsen in DMD Patients
NCT02255552 COMPLETED PHASE3