Overview Randomised Controlled Trial of Electroconvulsive Therapy (ECT) in Relapse Prevention of Depression Status: Completed Trial end date: 2012-05-01 Target enrollment: Participant gender: Summary The purpose of the study is to determine if continuation electroconvulsive therapy (ECT) is safe and effective in relapse prevention of depression. Phase: Phase 4 Details Lead Sponsor: Örebro County CouncilCollaborator: Uppsala-Örebro Regional Research CouncilTreatments: Lithium CarbonateVenlafaxine Hydrochloride