Epilepsy with generalized tonic-clonic seizures

This study tests the long-term safety and effectiveness of XEN1101 (azetukalner) in 880 adults with focal or tonic-clonic seizures. Participants who completed earlier studies will take XEN1101 capsules for up to 6 years. Researchers will track side effects and changes in monthly …

This study is testing the long-term safety of a once-daily drug called vormatrigine in 700 adults with focal or generalized tonic-clonic seizures. Participants must have already taken vormatrigine in a previous trial or program. The main goal is to check for side effects and chan…

This Phase 3 study tests whether fenfluramine (ZX008) can safely reduce seizures in 87 children and adults with CDKL5 deficiency disorder, a rare genetic condition causing severe epilepsy. Participants receive either the drug or a placebo, followed by an open-label extension wher…

This program provides continued access to the seizure medication perampanel (Fycompa) for people who completed certain earlier studies and are still benefiting from the drug. It runs until the drug is commercially available in their country or no participants remain. Only those a…