Biohaven completes enrollment in focal epilepsy drug trial

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Biohaven Completes Enrollment in RISE 3 Pivotal Focal Epilepsy Study with Opakalim, a Selective Kv7.2/7.3 Activator

June 30, 2026 7:30 AM EDT

Enrollment complete in pivotal Phase 2/3 study evaluating opakalim in focal epilepsy (RISE3); top-line results on track for 2H 2026Emerging 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 profileIn 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... More