To the Editor Chanen and colleagues1 report on the Monitoring Outcomes of Borderline Personality Disorder (BPD) in Youth (MOBY) randomized clinical trial. The study found early intervention (ie, weekly cognitive analytic therapy2 and case management) was not superior to 2 other treatment arms offering case management and befriending (involving conversations with trainee psychologists about neutral topics such as sport and music), which was used as a psychotherapy control condition.