We propose to conduct a pilot study to determine the feasibility and provide estimates for a randomized controlled study of combined antidepressive medications plus one of three forms of psychotherapy in common use for adults with an acute episode of recurrent major depression. Two treatments of interest, Cognitive-behavioural (CBT) and psychodynamic (DYN) psychotherpy, will be compared to Supportive Clinical Management (SUP-CM), which will serve as the control. Overall, the study will compare each active psychotherapy to the control treatment for retention-attrition, and efficacy in producing remission, preventing recurrence after up to 18-months of treatment, and improving functioning. Secondary aims will explore whether putative psychological risk factors for depression improve more in the active psychotherapies than in the control condition, and determine whether this improvement predicts or mediates staying well. Finally, we will develop preliminary estimates of the cost-effectiveness and cost-offset of the three treatment conditions at termination and 3 year post-treatment follow-up. If either or both active treatments give estimates of superior prevention of recurrences or residual symptoms and impairment, these estimates will be used to plan a subsequent more definitive study, including their relative cost-effectiveness and cost-offset.