A Study in Participants With Duchenne Muscular Dystrophy Amenable to Exon 44 Skipping to Evaluate the Safety and Efficacy of ENTR-601-44

Brief summary (registry, in English)

This is a study of the investigational medicine ENTR-601-44 in participants who have Duchenne muscular dystrophy (DMD), a rare genetic condition. The researchers want to: Test how safe ENTR-601-44 is, learn about any side effects, and look at the potential positive effects of ENTR-601-44, compared to placebo. Placebo looks like the investigational medicine but does not contain any active ingredient. In this summary ENTR-601-44 and placebo are both called study treatments. The study has 2 parts: * Part A * A Double-Blind Period, to evaluate if ENTR-601-44 is safe and to determine the best dose of ENTR-601-44 for Part B. * Following the Double-Blind period, participants will roll into an open-label treatment period during which the safety and efficacy of extended dosing will be evaluated. * Part B * To further evaluate the effect and safety of ENTR-601-44 at the dose determined in Part A. Participants will: * Receive study treatment in the form of multiple intravenous (IV) infusions (slow injection) into a vein over the course of several weeks in Part A and in Part B * Visit the clinic regularly for checkups and tests such as: blood and urine tests, physical examinations, questionnaires, and exercise tests. Participants will have a muscle biopsy at the beginning of their participation and after their last dose to allow researchers to compare whether there have been changes in the muscle as a result of the study drug. Participants are allowed to continue receiving their standard of care therapy for DMD during the study, as long as their health remains stable.

What you commit to

• Study type: Interventional · Phase 1/2
• Planned participants: 24
• From 30 Jun 2025 to the primary completion date, 28 Mar 2029
• 21 sites in 8 countries
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Age in the registry: 4 years to 20 years · Sex: Male · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (21)

Sites in registry order. Pick your city on the disease page to sort them by distance.