This is a multicenter, three-phase, long-term open-label study assessing the safety and tolerability of SPN-817 in adults 18-70 years of age with treatment resistant epilepsy. The Screening period is up to 8 weeks in duration. For eligible participants, Treatment period is 20 weeks in duration followed by an optional Open-Label Extension period which is up to 52 weeks in duration.
This study will evaluate the safety and tolerability of SPN-817 in adults with treatment resistant seizures