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Is Integrated CBT Effective in Reducing PTSD Symptoms and Substance Use in Iraq and Afghanistan Veterans? Results from a Randomized Clinical Trial

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Abstract

This study is the first to examine integrated cognitive behavioral therapy (ICBT) in a sample of military veterans with co-occurring posttraumatic stress disorder (PTSD) and substance use disorders (SUD). Generalized linear mixed models were used to examine primary outcomes from a small, randomized clinical trial comparing ICBT plus treatment as usual (TAU) to TAU only in a sample (N = 44) of U.S. veterans who served in Iraq and/or Afghanistan. A significant reduction in PTSD and SUD symptoms over time was detected in both conditions. One significant time-by-condition interaction effect for re-experiencing symptoms was observed, with ICBT showing greater reductions from baseline to post-treatment. Overall, the efficacy of ICBT in this veteran sample was not as robust as outcomes with non-veteran patients. Challenges to engagement and retention in treatment and further intervention adaptations for veterans are discussed.

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Funding

This study was funded by the National Institute on Drug Abuse (NIDA; Grant R01DA030102).

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Correspondence to Christy Capone.

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Christy Capone, Candice Presseau, Elizabeth Saunders, Erica Eaton, Jessica Hamblen and Mark McGovern declare that they have no conflicts of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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This article does not contain any studies with animals performed by any of the authors.

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The views expressed in this article are those of the authors and do not necessarily reflect the views of the Department of Veterans Affairs or the United States government.

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Capone, C., Presseau, C., Saunders, E. et al. Is Integrated CBT Effective in Reducing PTSD Symptoms and Substance Use in Iraq and Afghanistan Veterans? Results from a Randomized Clinical Trial. Cogn Ther Res 42, 735–746 (2018). https://doi.org/10.1007/s10608-018-9931-8

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