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Gene therapy for duchenne MD: Long-Term Follow-Up begins

NCT ID NCT06491927

Disease control Sponsor: REGENXBIO Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study follows 66 boys with Duchenne muscular dystrophy who previously received RGX-202 gene therapy. Researchers will monitor side effects and measure muscle function over time, such as how fast they can stand, walk, or climb. The goal is to see if the treatment remains safe and helps maintain movement.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 66 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2024

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Received RGX-202 in a separate parent study.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * The parent(s) or legal guardian(s) of the participant has/(have) provided written informed consent and (where applicable) Health Insurance Portability and Accountability Act (HIPAA) authorization after the nature of the study has been explained, prior to any research-related procedures; and, where applicable, the minor participant has provided written or verbal assent according to local requirements. * Must have undergone evaluation in a previous clinical study following a single IV infusion of RGX-202 for the treatment of DMD and either completed or withdrawn early from that study. * Participant and parent(s)/legal guardian(s) are willing and able to comply with scheduled visits, and study procedures. * Sexually active participants must be willing to use a medically accepted method of contraception from the time of the screening visit through 5 years after RGX-202 administration. Exclusion Criteria: * No exclusion criteria apply in this observational follow up study.

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Conditions

The condition(s) this trial relates to.

Duchenne muscular dystrophy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Duchenne muscular dystrophy

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    5 sites. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

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

    Chicago, Illinois, 60611, United States

  • Arkansas Children's Hospital

    Little Rock, Arkansas, 72202, United States

  • Stanford School of Medicine /Division of Neuromuscular Medicine

    Palo Alto, California, 94304, United States

  • The University of Texas Southwestern Medical Center

    Dallas, Texas, 75390, United States

  • Virginia Commonwealth University

    Richmond, Virginia, 23298, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.