Open-Label Study to Assess Lacosamide Safety as Add-on Therapy for Primary Generalized Tonic-Clonic Seizures in Subjects With Epilepsy

Inclusion Criteria

• •Subject has a diagnosis of uncontrolled epilepsy with primary generalized tonic-clonic (PGTC) seizures and idiopathic generalized epilepsy. Diagnosis should have been established by an electroencephalogram (EEG) with generalized spike-wave discharges within 5 years of the screening visit
• •Subject has ≥1 PGTC seizure within the 12 weeks prior to the screening visit
• •Subject has a stable dose regimen of 1 to 3 marketed antiepileptic drug(s) (AEDs) with or without additional concurrent stable Vagus Nerve Stimulation (VNS). The VNS must have been in place for at least 6 months prior to study entry with constant settings for at least 28 days prior to the screening visit and during the Baseline Phase. Benzodiazepines will be counted as an AED