Avidity Biosciences to Present Topline Data from Phase 1/2 FORTITUDE™ Trial of Del-brax in People Living with Facioscapulohumeral Muscular Dystrophy at 32nd Annual FSHD Society International Research Congress

Core Insights - Avidity Biosciences announced FDA alignment on accelerated and full approval pathways for delpacibart braxlosiran (del-brax) in facioscapulohumeral muscular dystrophy (FSHD) [1] - The company will present two oral and one poster presentations at the 32nd Annual FSHD Society International Research Congress in Amsterdam on June 12-13, 2025 [1][2] - Key presentations will include topline data from the FORTITUDE trial and characterization of a novel DUX4-regulated circulating biomarker [1][6] Company Overview - Avidity Biosciences focuses on delivering a new class of RNA therapeutics known as Antibody Oligonucleotide Conjugates (AOCs™) [4] - The company aims to revolutionize RNA therapy by combining the specificity of monoclonal antibodies with the precision of oligonucleotide therapies [4] - Avidity is advancing clinical development programs for three rare neuromuscular diseases: myotonic dystrophy type 1 (DM1), Duchenne muscular dystrophy (DMD), and facioscapulohumeral muscular dystrophy (FSHD) [4] Upcoming Presentations - Jeffrey M. Statland, M.D. will present topline data from the dose escalation cohorts of the FORTITUDE trial on June 13, 2025 [6] - Stephen Tapscott, M.D., Ph.D. will present findings on a DUX4-regulated circulating biomarker on June 12, 2025 [6] - A poster presentation is also scheduled for June 12, 2025 [6]