Promising psychotherapies for personality disorders

To provide a narrative review of recent research on the psychotherapeutic treatment of patients with personality disorders (PDs).

We conducted PubMed and PsycINFO searches of recently published articles that reported on the treatment outcomes of psychotherapies for PDs. Our focus was on studies that used randomized controlled trial (RCT) methodology. The search period was from January 2006 to June 2009.

The effectiveness of various psychotherapy treatment packages for PDs is well supported by favourable results from RCTs. Beneficial effects of psychotherapy included reduced symptomatology, improved social and interpersonal functioning, reduced frequency of maladaptive behaviours, and decreased hospitalization. Equivalent effects among the interventions we compared were common. Many of the treatments studied required only limited training by therapists. Most studies were focused on treating patients with borderline personality disorder (BPD). Some findings were suggestive of psychotherapy being cost-effective; however, few studies actually included formal cost analyses. Only one study included follow-up of treated patients beyond 1-year posttreatment.

There is strong support for the use of psychotherapy to treat patients with PDs. However, most of the evidence is limited to BPD. The findings of recent studies hold promise for training and practice. Future research should attend to identification of appropriate patient-treatment matches, elucidation of active treatment ingredients, and illumination of factors that are common among treatments that account for their equivalent effects.