Enrollment complete in pivotal Phase 2/3 study evaluating opakalim in focal epilepsy (RISE3); top-line results on track for 2H 2026 Emerging opakalim focal epilepsy and idiopathic generalized epilepsy data presented at recent R&D Day reinforce evidence of target engagement, potential for efficacy, and differentiated tolerability profile In the ongoing focal epilepsy open-label extension (OLE) study, 54% of participants on opakalim 75 mg once-daily achieved a ≥50% reduction in seizure frequency compared to pre-randomization baseline, with a markedly lower incidence of nervous system adverse events compared to approved and investigational ASMs High double-blind completion rates of ~95%, and high rollover rates into the OLE of ~95%, reflect favorable patient experience with opakalim NEW HAVEN, Conn., June 30, 2026 /PRNewswire/ -- Biohaven Ltd.




