A Randomized, Double-blind, Placebo-controlled, Phase 3 Study to Evaluate the Efficacy and Safety of Intravenous AOC 1044 for the treatment of Duchenne Muscular Dystrophy (DMD) with Gene Mutations Amenable to Exon 44 Skipping
The study consists of a Screening Period of up to 44 Days, a Randomized 54 Week Treatment Period, a 54 Week Open Label Extension (OLE), and a Follow-Up Period of 6 weeks. Participants will be randomized to receive an intravenous infusion of either delpacibart-zotadirsen or placebo at the clinical study site every 6 weeks for a total of 9 doses. After completion of the randomized treatment period, all participants may enter the OLE portion of the study consisting of 9 doses of AOC 1044 regardless of group assignment in the randomized period. The final dose will occur at Week 102, followed by a final assessment at Week 108 and a safety follow-up visit at Week 114. An Independent Data Monitoring Committee (IDMC) comprising members independent and external to the Sponsor will review safety, tolerability, and efficacy (as needed) data of this study at regular intervals.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
70
Change from Baseline in Time to Rise (TTR) Velocity at Week 54
Time frame: Baseline, Week 54
Change from Baseline in Creatine Kinase (CK) at Week 54
Time frame: Baseline, Week 54
Change from Baseline in 4-Stair Climb (4SC) Velocity at Week 54
Time frame: Baseline, Week 54
Change from Baseline in 10-Meter Walk/Run Test (10MWRT) Velocity at Week 54
Time frame: Baseline, Week 54
Change from Baseline in Stride Velocity 95th Centile (SV95C) at Week 54
Time frame: Baseline, Week 54
Change from Baseline in North Star Ambulatory Assessment (NSAA) Total Score at Week 54
Time frame: Baseline, Week 54
Change from Baseline in DMD Quality of Life (DMD-QoL) Score at Week 54
Time frame: Baseline, Week 54
Change from Baseline in Patient Global Impression of Severity (PGI-S) at Week 54
Time frame: Baseline, Week 54
Change from Baseline in Caregiver Global Impression of Severity (CaGI-S) at Week 54
Time frame: Baseline, Week 54
Patient Global Impression of Change (PGI-C) at Week 54
Time frame: Week 54
Caregiver Global Impression of Change (CaGI-C) at Week 54
Caregiver Global Impression of Change (CaGI-C) at Week 54
Time frame: Week 54
Change from Baseline in Quantitative Muscle Testing (QMT) at Week 54
Time frame: Baseline, Week 54
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