The Extended Access Program (EAP) is a managed access programme for Perampanel. The main objective of this EAP is to ensure that patients participating in studies E2007-A001-207, E2007-G000-307, or E2007-G000-235 continue to have access to perampanel until such time perampanel tablets become commercially available for the treatment of Partial Onset Seizures (POS) in the country in which they reside. This EAP will consist of 2 phases: