New drug shows promise for rare muscle disease in kids
NCT ID NCT03692312
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a drug called tideglusib against a placebo in 56 children aged 6 to 16 with congenital myotonic dystrophy, a rare genetic muscle disorder. The goal was to see if tideglusib could reduce symptoms like muscle weakness and breathing problems. The trial was completed, but results are not yet publicly available.
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 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
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56 people
The number who actually took part.
- Started
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Mar 2021
- Finished
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Apr 2023
- 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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6 to 16 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.
Inclusion Criteria: 1. Male or female children and adolescents aged ≥6 years and ≤16 years 2. Diagnosis of Congenital DM1 (also known as Steinert's disease) * Diagnosis must be genetically confirmed * One or more of the following clinically relevant (e.g. requiring medical intervention) signs or symptoms was evident within the first month after birth: * Hypotonia * Generalized weakness * Respiratory insufficiency * Feeding difficulties * Clubfoot or another musculoskeletal deformity 3. Subject must be able to walk and complete the 10-meter walk-run test (orthotics/splints allowed, forearm crutches are not allowed) 4. Written, voluntary informed consent must be obtained before any study related procedures are conducted. * Where a parent or LAR provides consent, there must also be assent from the subject 5. Subject's caregiver must be willing and able to support participation for duration of study 6. Subject must be willing and able to comply with the required food intake restrictions as outlined per protocol Exclusion Criteria: 1. Not able to walk; (full time wheel chair use) 2. Body mass index (BMI) less than 13.5 kg/m² or greater than 40 kg/m² 3. New or change in medications/therapies within 4 weeks prior to Screening 4. Use of strong CYP3A4 inhibitors (e.g clarithromycin, telithromycin, ketoconazole, itraconazole, posaconazole, nefazodone, idinavir and ritonavir) within 4 weeks prior to Baseline 5. Concurrent use of drugs metabolized by CYP3A4 with a narrow therapeutic window (e.g. warfarin and digitoxin) 6. Current enrollment in a clinical trial of an investigational drug or enrollment in a clinical trial of an investigational drug in the last 6 months 7. Existing or historical medical conditions or complications (e.g. neurological, cardiovascular, renal, hepatic, endocrine, gastrointestinal or respiratory disease) which would cause the investigator to conclude that the subject will not be able to perform the study procedures or assessments or would confound interpretation of data obtained during assessment 8. Hypersensitivity to tideglusib and its excipients including allergy to strawberry
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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.
Contacts and locations
Locations
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Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, 60611, United States
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Arkansas Children's Hospital
Little Rock, Arkansas, 72202, United States
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Children's Hospital London Health Sciences Centre (LHSC)
London, Ontario, N6A4G5, Canada
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Children's Hospital of Eastern Ontario
Ottawa, Ontario, K1H 8L1, Canada
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New Zealand Clinical Research (NZCR)
Auckland, 1010, New Zealand
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Newcastle University
Newcastle upon Tyne, NE2 4HH, United Kingdom
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Stanford University
Palo Alto, California, 94304, United States
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The Bright Alliance
Randwick, New South Wales, 2031, Australia
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University of California, Los Angeles (UCLA)
Los Angeles, California, 90095, United States
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University of Iowa Hospitals and Clinics
Iowa City, Iowa, 52242, United States
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University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15213, United States
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University of Rochester Medical Center
Rochester, New York, 14642, United States
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University of Utah Hospital
Salt Lake City, Utah, 84112, United States
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Virginia Commonwealth University - Department of Neurology. Muscular Dystrophy Translational Research Program.
Richmond, Virginia, 23219, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can we measure the progression of childhood myotonic dystrophy well enough to test new therapies?
- Scientists hunt for biomarkers to unlock DM1 treatments
- New study aims to improve monitoring of rare childhood muscle disease
- Join the fight: new registry connects muscle disease patients with scientists