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Integrated exposure-based therapy for co-occurring posttraumatic stress disorder and substance dependence: a randomized controlled trial. 2012

Katherine L Mills, and Maree Teesson, and Sudie E Back, and Kathleen T Brady, and Amanda L Baker, and Sally Hopwood, and Claudia Sannibale, and Emma L Barrett, and Sabine Merz, and Julia Rosenfeld, and Philippa L Ewer
National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia 2052. k.mills@unsw.edu.au

BACKGROUND There is concern that exposure therapy, an evidence-based cognitive-behavioral treatment for posttraumatic stress disorder (PTSD), may be inappropriate because of risk of relapse for patients with co-occurring substance dependence. OBJECTIVE To determine whether an integrated treatment for PTSD and substance dependence, Concurrent Treatment of PTSD and Substance Use Disorders Using Prolonged Exposure (COPE), can achieve greater reductions in PTSD and substance dependence symptom severity compared with usual treatment for substance dependence. METHODS Randomized controlled trial enrolling 103 participants who met DSM-IV-TR criteria for both PTSD and substance dependence. Participants were recruited from 2007-2009 in Sydney, Australia; outcomes were assessed at 9 months postbaseline, with interim measures collected at 6 weeks and 3 months postbaseline. METHODS Participants were randomized to receive COPE plus usual treatment (n = 55) or usual treatment alone (control) (n = 48). COPE consists of 13 individual 90-minute sessions (ie, 19.5 hours) with a clinical psychologist. METHODS Change in PTSD symptom severity as measured by the Clinician-Administered PTSD Scale (CAPS; scale range, 0-240) and change in severity of substance dependence as measured by the number of dependence criteria met according to the Composite International Diagnostic Interview version 3.0 (CIDI; range, 0-7), from baseline to 9-month follow-up. A change of 15 points on the CAPS scale and 1 dependence criterion on the CIDI were considered clinically significant. RESULTS From baseline to 9-month follow-up, significant reductions in PTSD symptom severity were found for both the treatment group (mean difference, -38.24 [95% CI, -47.93 to -28.54]) and the control group (mean difference, -22.14 [95% CI, -30.33 to -13.95]); however, the treatment group demonstrated a significantly greater reduction in PTSD symptom severity (mean difference, -16.09 [95% CI, -29.00 to -3.19]). No significant between-group difference was found in relation to improvement in severity of substance dependence (0.43 vs 0.52; incidence rate ratio, 0.85 [95% CI, 0.60 to 1.21), nor were there any significant between-group differences in relation to changes in substance use, depression, or anxiety. CONCLUSIONS Among patients with PTSD and substance dependence, the combined use of COPE plus usual treatment, compared with usual treatment alone, resulted in improvement in PTSD symptom severity without an increase in severity of substance dependence. BACKGROUND isrctn.org Identifier: ISRCTN12908171.

UI MeSH Term Description Entries
D007171 Implosive Therapy A method for extinguishing anxiety by a saturation exposure to the feared stimulus situation or its substitute. Flooding Therapy,Flooding, Imaginal,Exposure Therapy,Imaginal Flooding,Therapy, Implosive,Exposure Therapies,Flooding Therapies,Floodings, Imaginal,Imaginal Floodings,Implosive Therapies,Therapies, Exposure,Therapies, Flooding,Therapies, Implosive,Therapy, Exposure,Therapy, Flooding
D008297 Male Males
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D003376 Counseling The giving of advice and assistance to individuals with educational or personal problems.
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012720 Severity of Illness Index Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder. Illness Index Severities,Illness Index Severity
D013313 Stress Disorders, Post-Traumatic A class of traumatic stress disorders with symptoms that last more than one month. Moral Injury,Neuroses, Post-Traumatic,PTSD,Post Traumatic Stress Disorder,Post-Traumatic Stress Disorders,Acute Post-Traumatic Stress Disorder,Chronic Post-Traumatic Stress Disorder,Delayed Onset Post-Traumatic Stress Disorder,Neuroses, Posttraumatic,Posttraumatic Stress Disorders,Stress Disorder, Post Traumatic,Stress Disorders, Posttraumatic,Acute Post Traumatic Stress Disorder,Chronic Post Traumatic Stress Disorder,Delayed Onset Post Traumatic Stress Disorder,Injury, Moral,Moral Injuries,Neuroses, Post Traumatic,Post Traumatic Stress Disorders,Post-Traumatic Neuroses,Post-Traumatic Stress Disorder,Posttraumatic Neuroses,Posttraumatic Stress Disorder,Stress Disorder, Post-Traumatic,Stress Disorder, Posttraumatic
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes

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