Biogen, Stoke Therapeutics present data from studies of zorevunersen

Biogen Inc. (BIIB) and Stoke Therapeutics (STOK) announced presentations of new clinical data from studies of zorevunersen at the 36th International Epilepsy Congress, taking place August 30 – September 3, 2025 in Lisbon, Portugal. Zorevunersen, an investigational antisense oligonucleotide, is being evaluated as a potential disease-modifying medicine for the treatment of Dravet syndrome in the global pivotal EMPEROR Phase 3 study. “With these additional clinical data, we are developing a long-term understanding of the potential for zorevunersen to improve outcomes for patients by addressing the underlying genetic cause of Dravet syndrome,” said Barry Ticho, M.D., Ph.D., Chief Medical Officer of Stoke Therapeutics. “The substantial and durable reductions in seizures and improvements in cognition and behavior in patients already receiving standard anti-seizure medicines support the potential for disease modification. We look forward to sharing and discussing our latest zorevunersen data, including new analyses related to improvements in seizure free days and quality of life, with the world’s leading epilepsy experts at this premier congress.”