LACOSAMIDE FOR UNCONTROLLED PRIMARY GENERALIZED TONIC-CLONIC SEIZURES: AN OPEN-LABEL PILOT STUDY WITH 59-WEEK EXTENSION

•Adjunctive lacosamide did not systematically worsen absence or myoclonic seizures.•During the 2 studies, few patients reported seizure-related adverse events.•Common adverse events were similar to those noted in patients with focal epilepsy.