MOBY: A randomised controlled trial of three forms of psychosocial early intervention for borderline personality disorder in youth.

Dataset from a randomized controlled trial aimed at evaluating the effectiveness of early intervention methods for young individuals (aged 15-25) diagnosed with Borderline Personality Disorder (BPD) who are seeking treatment for the first time. The study compares three distinct interventions: two specialized forms of the "Helping Young People Early" (HYPE) intervention—one with and one without 16 sessions of individual Cognitive Analytic Therapy (CAT)—and a control group receiving general youth mental health care of equivalent duration. The primary outcomes assessed are improvements in interpersonal problems and social adjustment at 12 and 18 months post-enrolment. The dataset is designed to identify which intervention most effectively aids in the early stages of BPD management, with the hypothesis that HYPE combined with CAT will yield superior outcomes.