Psychotherapies for the treatment of personality disorders: the state of the art.

Purpose of review: To provide an update of systematic reviews, meta-analyses and recent clinical outcome studies for personality disorder (PD) in order to investigate the state of the art of the evidence of psychotherapy for personality disorders.

Recent findings: Few outcome studies in patients with Cluster A and Cluster C PD have been conducted, which limits the conclusions which can be drawn. Most recently published research has been conducted with borderline PD. There is limited evidence that dialectical behavior therapy (DBT), mentalization based therapy and schema therapy are more effective than treatment as usual. There is no convincing evidence that long and intensive therapy is more effective than short and less intensive therapy. Drop-out is rather high for patients with borderline PD. Group therapy results in more drop-outs than individual therapy.

Summary: There is a clear need of studies evaluating whether psychotherapies developed for PDs are more effective than CBT for patients with Cluster C PD. Given that studies with patients with Cluster B PD suggest that longer treatment of DBT and mentalization-based treatment is not more effective than shorter treatment this needs to be studied with other evidence-based therapies as well. Serious efforts are needed to evaluate therapies for patients with Cluster A PDs.