Effectiveness and safety of the adjunctive use of an internet-based self-management intervention for borderline personality disorder in addition to care as usual: results from a randomised controlled trial

Importance Borderline personality disorder (BPD) is a severe mental disorder that is often inadequately treated. Objective To determine if adding a self-management intervention to care as usual (CAU) is effective and safe. Design Randomised, controlled, rater-blind trial. Duration of treatment and assessments: 12 months. Setting Secondary care, recruited mainly via the internet. Participants Patients with BPD and BPD Severity Index (BPDSI) of at...