Male and female adolescents (ages 12-18) will be eligible for the study if they completed acute phase treatment and showed at least a partial response to treatment (CGI-I of minimally improved or better (CGI-I \< 3)). Adolescents will enter continuation treatment having either received 12 sessions of IPT-A, 16 sessions of IPT-A, or 12 sessions of IPT-A plus fluoxetine.This is a continuation of the study "An Adaptive Treatment Strategy for Adolescent Depression (PTAD)" NCT01802437
