Clinical trials

This is a phase 1/2a double-blinded, placebo-controlled, dose-escalating study to evaluate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics of single and multiple ascending doses of SRP-1003 compared to placebo in male and female participants with type 1 myotonic dystrophy (DM1). Participants who have provided written informed consent and met all protocol eligibility requirements will be randomized to receive single (Part 1) or multiple (Part 2) doses of SRP-1003 or placebo.

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics of SRP-1001 in participants with facioscapulohumeral muscular dystrophy Type 1 (FSHD1). In Part 1 of the study, participants will receive one dose of SRP-1001 or placebo. In Part 2 of the study, participants will receive 4 doses of SRP-1001 or placebo. Participants who complete Part 1 will have the option to re-screen and re-randomize into Part 2. All participants will undergo pre- and post-dose magnetic imaging resonance (MRI)-guided muscle biopsies (a total of 2 biopsies). Participants who complete Part 1 and enroll in Part 2 will be required to undergo an additional screening biopsy. Participants completing Part 1 or Part 2 may have the option to continue to receive drug in an open-label extension study or may be eligible to participate in later-stage clinical studies.

Cohort 8 (non-ambulatory participants) is currently enrolling new participants. Enrollment for Cohorts 1 through 7 has been completed. This is an open-label gene transfer therapy study evaluating the safety of and expression from delandistrogene moxeparvovec in participants with Duchenne Muscular Dystrophy (DMD). The maximum participant duration for this study is 156 weeks.

This is a first-in-human, multi-center trial studying the effects of SRP-1005 in participants with Huntington's disease (HD).

The primary objective of this study is to evaluate acute liver injury (ALI) rates associated with ELEVIDYS with the addition of sirolimus as an adjunct prophylactic immunosuppression agent.