EP0156 is designed to assess the long-term safety and tolerability of BRV in pediatric study participants with epilepsy who participated in the neonatal study N01349 \[NCG03325439\] and/or have participated in the open-label, long-term, follow-up pediatric study N01266 \[NCT01364597\]. EP0156 will also assess the long-term safety and tolerability of BRV in Japanese pediatric study participants with partial-onset seizures who will be directly enrolled into the study in Japan. Pharmacokinetic data will also be evaluated in Japanese study participants.