Koshi

This research aims to evaluate the long-term safety and tolerability of brivaracetam in children and adolescents with epilepsy. It includes pediatric participants who previously took part in neonatal or long-term follow-up studies, as well as new participants from Japan with partial-onset seizures. The study also includes evaluation of pharmacokinetics in Japanese participants. It is a Phase 3, open-label, single-arm, multicenter study focusing on pediatric epilepsy patients treated with brivaracetam as an additional therapy. Participants will receive brivaracetam orally twice daily, either as tablets available in 10 mg, 25 mg, or 50 mg strengths, or as an oral solution with a concentration of 10 mg/ml. The treatment is administered in two equal doses each day. The study includes those previously enrolled in related studies and new enrollees from Japan, with treatment and monitoring continuing over an extended period to assess long-term safety. During the study, researchers will monitor participants from the initial evaluation visit through safety visits that may last up to five years. They will track any adverse events related to treatment, including serious events and those causing discontinuation of the drug. Assessments include clinical evaluations, laboratory tests, and electroencephalogram readings, with ongoing safety monitoring to understand how well participants tolerate the medication over time.