This study was developed to investigate the efficacy of an emotional regulation and mindfulness skills of Dialectical Behavioral Therapy (DBT) to prevent depression relapse. The sample included 75 individuals with a diagnosis of major depressive disorder (MDD) in complete or partial remission were recruited. 79% of them were females, mean age was 52 years. Participants were randomly placed in intervention group, which combined emotion regulation and mindfulness skills, or psychoeducative group as control. The time to relapse of major depression was a primary outcome measure and was defined as meeting SCID-I criteria for at least 2 weeks. Primary outcome measures were assessed at three time points during the treatment phase and bi-monthly
