Efficacy and Safety of Lu AA39959 in Patients With Bipolar Depression

Patients suffering from a major depressive episode of bipolar II or I disorder, according to DSM-IV TR Inclusion Criteria: * Current major depressive episode of bipolar II or I disorder, according to DSM-IV TR * Moderate to severe depression * History of at least one documented mania or hypomania episode * Absence of current mania or hypomania Exclusion Criteria: * Any current psychiatric disorder other than bipolar disorder defined in the DSM-IV TR * Any substance disorder with the previous 6 months * Use of any psychoactive medication (including mood stabilizers) within 2 weeks before randomisation and during the study * ECT within 6 months before the study * Female of childbearing potential and not using adequate contraception * Other protocol-defined inclusion and exclusion criteria may apply