Gene therapy trial aims to help boys with duchenne walk stronger
NCT ID NCT07160634
First seen Jun 27, 2026 · Last updated Aug 14, 2026 · Updated 4 times
Summary
This study tests a one-time gene therapy called SGT-003 in 80 boys with Duchenne muscular dystrophy who can still walk. The goal is to see if it helps them move better, like standing up faster and climbing stairs. Participants will receive either the therapy or a placebo first, then switch, and be followed for at least 5 years.
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.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Jan 2034
An estimate. End dates often move.
- Lead sponsor
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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.
- Ages
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7 to 11 years
- Sex
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Male participants only
- Healthy volunteers
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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 Hide 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: * Participant is ambulatory. * Established clinical diagnosis of DMD and documented DMD gene mutation predictive of DMD phenotype. * Negative for antibodies against adeno-associated virus serotype 9 (AAV9). * On a stable daily oral regimen of at least 0.5 mg/kg/day prednisone or 0.75 milligrams per kilogram per day (mg/kg/day) deflazacort for at least 6 months prior to entering the study, allowing for weight-based dose modifications in accordance with clinical practice. * Meet 10-meter walk/run time criteria. * Meet time to rise from supine criteria. * Participant has bodyweight ≤50 kg. Exclusion Criteria: * Current or prior treatment with an approved or investigational gene transfer drug or gene editing therapy. * Exposure to vamorolone, givinostat, approved or investigational dystrophin- or disease-modifying drugs (such as eteplirsen, golodirsen, casimersen, viltolarsen, and ataluren), or another investigational drug for any indication within 6 months or 5 half-lives, whichever is longer, prior to enrollment. * Established clinical diagnosis of DMD that is associated with any deletion variant or variant predicted not to express exons 1 to 11, exons 42 to 45, or exons 57 to 69, inclusive of the DMD gene as documented by a genetic report. Other Inclusion/Exclusion criteria to be applied as per protocol.
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
7 sites in 3 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Locations
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Alberta Children's Hospital
RECRUITINGCalgary, Alberta, T3B 6A8, Canada
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Arkansas Children's Hospital
NOT_YET_RECRUITINGLittle Rock, Arkansas, 72202, United States
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BC Children's Hospital
RECRUITINGVancouver, British Columbia, Canada
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Children's Hospital of the King's Daughters
NOT_YET_RECRUITINGNorfolk, Virginia, 23510, United States
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Neurology Rare Disease Center
NOT_YET_RECRUITINGFlower Mound, Texas, 75082, United States
Contact Email: •••••@•••••
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The Children's Hospital of Westmead
RECRUITINGSydney, New South Wales, Australia
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The Hospital for Sick Children (SickKids)
RECRUITINGToronto, Ontario, Canada
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Other studies related to the condition(s) this trial covers.
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- Can a lower steroid dose preserve strength in young boys with DMD?
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- Can a massive patient database unlock new treatments for muscular dystrophy?
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