Open-Label Extension Study to Assess the Safety and Seizure Frequency Associated With Lacosamide for Primary Generalized Tonic-Clonic Seizures in Subjects With Epilepsy

Open-Label Extension Study to Assess the Safety and Seizure Frequency Associated With Lacosamide for Primary Generalized Tonic-Clonic Seizures in Subjects With Epilepsy

An Open-Label Extension Study to Assess the Safety and Seizure Frequency Associated With Long-Term Oral Lacosamide for Uncontrolled Primary Generalized Tonic-Clonic Seizures in Subjects With Idiopathic Generalized Epilepsy

The purpose is to obtain data on the safety and seizure frequency associated with long-term oral Lacosamide for uncontrolled primary generalized tonic-clonic (PGTC) seizures in subjects with idiopathic generalized Epilepsy. Additionally, to allow subjects who have completed SP0961 (NCT01118949) to continue to receive Lacosamide.

Primary Generalized Tonic-Clonic (PGTC) Seizures, Absence Seizures, Myoclonic Seizures, Idiopathic Generalized Epilepsy (IGE)

Lacosamide was supplied as 50 mg and 100 mg tablets. The starting Lacosamide dose was the same dose reached by a subject at the end of SP0961 (NCT01118949). Lacosamide was administered twice daily (approx. 12 hours apart, once in the morning and once in the evening) in 2 equally divided doses.

Lacosamide was supplied as 50 mg and 100 mg tablets. The starting Lacosamide dose was the same dose reached by a subject at the end of SP0961 (NCT01118949). At the beginning of SP0962, the dose may be maintained, or increased or decreased by 100 mg /day, as deemed clinically appropriate to optimize tolerability and seizure reduction. Dose increases should be no faster than 100 mg/ day per week up to a maximum of 800 mg/ day. Lacosamide was administered twice daily (approx. 12 hours apart, once in the morning and once in the evening) in 2 equally divided doses for up to a 56-week Treatment Phase. The Treatment Phase was followed by a 5-week End-of-Study Phase, during which subjects had to be tapered off Lacosamide at a recommended decrease rate of 200 mg/ day per week.

Number of Participants With Treatment-emergent Adverse Events (TEAEs) From Visit 1 to the End of Study (Approximately 61 Weeks)

Number of Participants Withdrawn From the Study Due to Treatment-emergent Adverse Events (TEAEs) From Visit 1 to the End of Study (Approximately 61 Weeks)

Inclusion Criteria: Subject completed the SP0961 (NCT01118949) study Subject is expected to benefit from participation in an open-label extension study with Lacosamide, in the opinion of the investigator Exclusion Criteria: Subject meets the withdrawal criteria for SP0961 (NCT01118949) or is experiencing an ongoing Serious Adverse Event (SAE)

Wechsler RT, Yates SL, Messenheimer J, Leroy R, Beller C, Doty P. Lacosamide for uncontrolled primary generalized tonic-clonic seizures: An open-label pilot study with 59-week extension. Epilepsy Res. 2017 Feb;130:13-20. doi: 10.1016/j.eplepsyres.2016.12.015. Epub 2016 Dec 29.