New hope for rare muscle disease: experimental drug enters human trials
NCT ID NCT06131983
First seen Jun 27, 2026 · Last updated Aug 12, 2026 · Updated 2 times
Summary
This study tests an experimental drug called ARO-DUX4 in people with facioscapulohumeral muscular dystrophy type 1 (FSHD1), a genetic condition that causes muscle weakness. The main goal is to check the drug's safety and how the body processes it. About 60 adults and teens will receive either the drug or a placebo, with some receiving up to four doses. The study also looks at how the drug affects muscle tissue through biopsies and MRI scans.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2024
- Expected to finish
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Dec 2028
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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16 to 70 years
- Sex
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Anyone
- 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.
Key Inclusion Criteria: * Genetically confirmed FSHD1 based on screening evaluation or source verifiable medical record * Clinical severity score between 3 and 8 (scale, 0 to 10) * Must have an eligible lower extremity muscle for biopsy as determined from MRI by a central reader, with muscle fat fraction ≥10% and less than approximately 40% * Males or nonpregnant, nonlactating females ≥18 years of age who do not plan to become pregnant during the study, with an upper age limit of ≤70 years * Able and willing to provide written informed consent prior to the performance of any study specific procedures * Participants with a body mass index (BMI) between 18.0 and 35.0 kilograms/square meter, inclusive. A participant with FSHD1 and a BMI outside this range may be allowed into the study at the discretion of the principal investigator. * Must have eligible lower extremity muscle for biopsy as determined from MRI by a central reader * A 12-lead electrocardiogram at screening with no abnormalities that may compromise participant's safety in the study * Participants of childbearing potential and their partners must use highly effective contraception during the study and for at least 9 months following the end of study or last dose of study medication, whichever is later. Males must not donate sperm during the study from Day 1 until at least 9 months following the end of study or last dose of study medication, whichever is later. Key Exclusion Criteria: * Human immunodeficiency virus (HIV) infection as shown by presence of anti-HIV antibody (seropositive) at screening * Seropositive for hepatitis B or hepatitis C at screening * Uncontrolled hypertension * Severe cardiovascular disease * History of thrombolic events * Platelet count less that the lower limit of normal at screening * History or presence of: a hypercoagulable state, nephrotic range proteinuria, antiphospholipid antibody syndrome, myeloproliferative disease, inability to ambulate, use of hormone-based contraceptives. * Any contraindication to muscle biopsy or MRI Note: additional inclusion/exclusion criteria may apply per protocol
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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 places running it
16 sites in 7 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
Locations
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Alfred Health
RECRUITINGMelbourne, Victoria, 3004, Australia
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Centre For Human Drug Research
RECRUITINGLeiden, 2333, Netherlands
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Centro Clinico Nemo Milann
RECRUITINGMilan, 20162, Italy
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Fondazione Policlinico Universitario A. Gemelli
RECRUITINGRoma, 00168, Italy
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Hospital Universitari l Politecnic La Fe de Valencia
RECRUITINGValencia, 46026, Spain
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Hospital Universitario Ramon y Cajal
RECRUITINGMadrid, 28034, Spain
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Hospital Universitario Vall d'Hebron
RECRUITINGBarcelona, 08035, Spain
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Liverpool Hospital
RECRUITINGLiverpool, New South Wales, 2170, Australia
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McGill University
RECRUITINGMontreal, Quebec, H3A2B4, Canada
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Neurologische Universitätsklinik Am Rku
RECRUITINGUlm, 89081, Germany
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New Zealand Clinical Research
RECRUITINGAuckland, 1010, New Zealand
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Sunshine Coast University Hospital
RECRUITINGBirtinya, Queensland, 4575, Australia
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University of Alberta
RECRUITINGEdmonton, Alberta, T6G2G4, Canada
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University of Calgary
NOT_YET_RECRUITINGCalgary, Alberta, T2N4Z6, Canada
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Universitätsklinikum München
RECRUITINGMünchen, 80336, Germany
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Wesley Research Institute
RECRUITINGAuchenflower, Queensland, 4066, Australia
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New hope for FSHD: Long-Term drug safety trial underway
- New hope for FSHD: experimental drug AOC 1020 completes early testing
- Inflammation may be key in rare muscle disease
- New study aims to sharpen tools for testing kids with rare muscle disease
- FSHD patients unite: new registry aims to accelerate research and care