title: Acceptance and commitment therapy group-treatment for non-responsive patients with personality disorders: An exploratory study.
abstract: Patients with personality disorders who did not respond to previous outpatient treatment are among the most challenging patients to treat and are often referred to specialized settings. Acceptance and commitment therapy (ACT) is an innovative therapy that has shown effectiveness in treatment-resistant cases with chronic or recurrent depression with or without co-morbid personality disorders. The central role that ACT accords to positive values and experiential avoidance may enhance treatment responsivity in patients with personality disorders that did not respond to previous treatments. The current nonrandomized study explored the effectiveness of a 26-week ACT-based group treatment (n = 60) for personality disorders compared to treatment-as-usual (n = 21) based on cognitive behaviour therapy (CBT-TAU) at a specialized setting for patients with personality disorders. Individuals in both treatment conditions demonstrated small to moderate decreases in general psychological functioning and personality pathology. There was no main effect of therapy condition. Overall, results suggest that ACT is a possible treatment option for individuals with difficult-to-treat personality pathology and further outcome research is warranted.
authors.affiliation: Scelta, Apeldoorn, The Netherlands.|Department of Psychology, Health, and Technology, University of Twente, Enschede, The Netherlands.
authors.forename: Farid
authors.identifier: http://orcid.org/0000-0001-6929-0331
authors.initials: F
authors.lastname: Chakhssi
authors.affiliation: Windesheim School of Applied Science Zwolle and Altrecht Aventurijn, Den Dolder, The Netherlands.
authors.forename: Wim
authors.initials: W
authors.lastname: Janssen
authors.affiliation: Scelta, Apeldoorn, The Netherlands.
authors.forename: Silvia M
authors.initials: SM
authors.lastname: Pol
authors.affiliation: GGZE, Eindhoven, The Netherlands.
authors.forename: Malinda
authors.initials: M
authors.lastname: van Dreumel
authors.affiliation: Department of Psychology, Health, and Technology, University of Twente, Enschede, The Netherlands.
authors.forename: Gerben J
authors.initials: GJ
authors.lastname: Westerhof
mesh_terms: D064869:Acceptance and Commitment Therapy; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010554:Personality Disorders / Q000628:therapy*; D011615:Psychotherapy, Group; D016896:Treatment Outcome