Supernus Pharmaceuticals, Inc.
This is a Phase 2b open-label extension study to evaluate the long-term safety and efficacy of SPN-817.
This is a Phase 2b, multicenter, open-label extension, one-year, safety, tolerability, and efficacy study in adults who previously completed an applicable double-blind SPN-817 clinical study. This study will include a double-blind Dose Titration/Bridging Period of 8-10 weeks in which SPN-817 will be titrated to the participant's maximum tolerated dose based on response. Following the Dose Titration/Bridging Period, participants will enter an Open Label Extension (OLE) Period of 42-44 weeks. When participants finish the OLE Period, they will initiate a Tapering Period (up to 4 weeks) followed b…
Inclusion Criteria: 1. Completed antecedent SPN-817 double-blind study 2. Taking a stable dosage regimen (maintained during the antecedent study) of at least one antiseizure medication (ASM) and no more than 4 ASMs Exclusion Criteria: 1. Has current nonepileptic events that could be confused by the participant and/or study staff as epileptic seizures 2. Has any suicidal behavior or suicidal ideation related to Item 4 (active suicidal ideation with some intent to act without specific plan) or Item 5 (active suicidal ideation with specific plan and intent) based on the Columbia-Suicide Severi…
SPN-817 starting at 0.25 mg bid up to 4.00 mg bid
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