Xenon Showcases New 48-Month Azetukalner OLE Study Data in Epilepsy at AES 2025

VANCOUVER, British Columbia and BOSTON, Dec. 05, 2025 (GLOBE NEWSWIRE) -- Xenon Pharmaceuticals Inc. (Nasdaq: XENE), a neuroscience-focused biopharmaceutical company dedicated to drug discovery, clinical development and commercialization of life-changing therapeutics for patients in need, today announced new data highlighting its commitment in epilepsy, including interim 48-month data from its ongoing X-TOLE open-label extension (OLE) study of azetukalner in patients with focal onset seizures (FOS), multiple real world studies on the burden of depression and anti-seizure medication (ASM) titration in epilepsy, and new data for its pre-clinical program in Dravet syndrome. These data are being presented at the American Epilepsy Society Annual Meeting (AES 2025), taking place December 5-9, 2025 in Atlanta, Georgia.