Avidity Biosciences Announces MAP For Investigational Therapy Delpacibart Zotadirsen For Eligible People With Duchenne Muscular Dystrophy Mutations Amenable To Exon 44 Skipping In US

Avidity Biosciences, Inc. (NASDAQ:RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today announced its Managed Access Program (MAP) for investigational therapy delpacibart zotadirsen (del-zota) for eligible people with Duchenne muscular dystrophy mutations amenable to exon 44 skipping (DMD44) in the United States.

Under an FDA-authorized treatment protocol, Avidity will provide del-zota to eligible boys and men with DMD44 through participating healthcare providers. Enrollment is anticipated to begin by year end, and participants in EXPLORE44-OLE will have the option to transition to the MAP as they complete 2 years of treatment.

Avidity aligned with FDA on a path forward for a BLA submission for del-zota following an October 2025 pre-BLA meeting, with the submission planned for 2026 for accelerated approval. Participants will transition to commercial drug supply upon future potential FDA approval and product availability.