Stoke, Biogen share 4-year data on zorevunersen for Dravet syndrome

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Stoke Therapeutics and Biogen Present Long-Term Clinical Data that Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 16t

September 3, 2026 7:30 PM EDT

4-year data from the Phase 1/2a open-label extension (OLE) studies showed substantial and durable reductions in seizures and continuing improvements in cognition and behavior in patients treated with zorevunersen on top of standard of care anti-seizure medicines

New data showed substantial reductions in the most severe seizure types, the leading risk factor for sudden unexpected death in epilepsy (SUDEP)

Improvements in quality of life were demonstrated through 28 months of treatment

Zorevunersen generally well tolerated, with some... More