Dyne Therapeutics to Present New Preclinical Data
Dyne Therapeutics to Present New Preclinical Data in Facioscapulohumeral Muscular Dystrophy at the FSHD Society International Research Congress
WALTHAM, Mass. -- Dyne Therapeutics, Inc., a clinical-stage company focused on advancing life-transforming therapeutics for people living with genetically driven neuromuscular diseases, today announced that it will be presenting new preclinical data demonstrating the potential of DYNE-302 to achieve functional improvement in facioscapulohumeral muscular dystrophy (FSHD). The data will be presented at the 32nd Annual FSHD Society’s International Research Congress 32nd Annual FSHD Society’s International Research Congress being held June 12-13, 2025, in Amsterdam.
In a mouse model of severe FSHD, a single intravenous dose of DYNE-302 administered at the peak of muscle weakness restored ability to run on a treadmill. Analysis of gene activity in skeletal muscle indicated correction of muscle damage and inflammation. These findings suggest that preexisting and severe skeletal muscle disease in FSHD has the potential to be reversed by targeting the DUX4 mRNA with DYNE-302.
FSHD is a rare, progressive, inherited muscle disease. De-repression of DUX4 in skeletal muscle drives disease pathogenesis, leading to muscle damage and loss of function. This results in a range of symptoms that restrict daily activities and have a high physical, emotional, and financial burden. DYNE-302 leverages a TfR1-targeting Fab for muscle delivery of an siRNA payload highly specific for DUX4 mRNA with the aim of suppressing DUX4 expression and the downstream DUX4 transcriptome.
About Facioscapulohumeral Muscular Dystrophy (FSHD)
FSHD is a rare, progressive, genetic disease caused by a mutation in the DUX4 gene, leading to skeletal muscle loss, muscle weakness and wasting. Individuals with FSHD carry a genetic mutation that allows the DUX4 gene to be sporadically activated in muscle cells, causing their gradual destruction throughout the body. People living with FSHD experience weakness in all major muscle groups throughout the body and limited mobility. An estimated 16,000 to 38,000 individuals in the United States and approximately 35,000 in Europe are affected by FSHD, but there are currently no approved therapies.
About Dyne Therapeutics
Dyne Therapeutics is discovering and advancing innovative life-transforming therapeutics for people living with genetically driven neuromuscular diseases. Leveraging the modularity of its FORCE™ platform, Dyne is developing targeted therapeutics that deliver to muscle and the central nervous system (CNS). Dyne has a broad pipeline for neuromuscular diseases, including clinical programs for myotonic dystrophy type 1 (DM1) and Duchenne muscular dystrophy (DMD) and preclinical programs for facioscapulohumeral muscular dystrophy (FSHD) and Pompe disease.
