• J Consult Clin Psychol · Oct 2010

    Randomized Controlled Trial Multicenter Study Comparative Study

    A randomized clinical trial of acceptance and commitment therapy versus progressive relaxation training for obsessive-compulsive disorder.

    • Michael P Twohig, Steven C Hayes, Jennifer C Plumb, Larry D Pruitt, Angela B Collins, Holly Hazlett-Stevens, and Michelle R Woidneck.
    • Department of Psychology, Utah State University, 2810 Old Main Hill, Logan, UT 84322-2810, USA. michael.twohig@usu.edu
    • J Consult Clin Psychol. 2010 Oct 1;78(5):705-16.

    ObjectiveEffective treatments for obsessive-compulsive disorder (OCD) exist, but additional treatment options are needed. The effectiveness of 8 sessions of acceptance and commitment therapy (ACT) for adult OCD was compared with progressive relaxation training (PRT).MethodSeventy-nine adults (61% female) diagnosed with OCD (mean age = 37 years; 89% Caucasian) participated in a randomized clinical trial of 8 sessions of ACT or PRT with no in-session exposure. The following assessments were completed at pretreatment, posttreatment, and 3-month follow-up by an assessor who was unaware of treatment conditions: Yale-Brown Obsessive Compulsive Scale (Y-BOCS), Beck Depression Inventory-II, Quality of Life Scale, Acceptance and Action Questionnaire, Thought Action Fusion Scale, and Thought Control Questionnaire. Treatment Evaluation Inventory was completed at posttreatment.ResultsACT produced greater changes at posttreatment and follow-up over PRT on OCD severity (Y-BOCS: ACT pretreatment = 24.22, posttreatment = 12.76, follow-up = 11.79; PRT pretreatment = 25.4, posttreatment = 18.67, follow-up = 16.23) and produced greater change on depression among those reporting at least mild depression before treatment. Clinically significant change in OCD severity occurred more in the ACT condition than PRT (clinical response rates: ACT posttreatment = 46%-56%, follow-up = 46%-66%; PRT posttreatment = 13%-18%, follow-up = 16%-18%). Quality of life improved in both conditions but was marginally in favor of ACT at posttreatment. Treatment refusal (2.4% ACT, 7.8% PRT) and dropout (9.8% ACT, 13.2% PRT) were low in both conditions.ConclusionsACT is worth exploring as a treatment for OCD.Copyright 2010 APA, all rights reserved.

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