A Study of Brivaracetam in Subjects With Partial Onset Seizures

Daily oral dose of two equal intakes, morning and evening, of placebo in a double-blinded way for the 10-week Treatment Period (3 weeks up-titration followed by 7-week maintenance period)

Daily oral dose of two equal intakes, morning and evening, of Brivaracetam 50 mg/day in a double-blinded way for the 10-week Treatment Period (3 weeks up-titration followed by 7-week maintenance period)

Daily oral dose of two equal intakes, morning and evening, of Brivaracetam 150 mg/day in a double-blinded way for the 10-week Treatment Period (3 weeks up-titration followed by 7-week maintenance period)