Self-guided internet-delivered cognitive behavior therapy (ICBT) for obsessive-compulsive symptoms: A randomized controlled trial

Bethany M Wootton, Eyal Karin, Nick Titov, Blake F Dear
Journal of Anxiety Disorders 2019 July 4, 66: 102111
Internet-delivered cognitive behavior therapy (ICBT) for obsessive-compulsive disorder (OCD) has been demonstrated to be efficacious across multiple clinical trials. However, most of these interventions include clinician support, and many individuals with OCD prefer to manage their own symptoms. Self-guided ICBT overcomes this problem, but to date the efficacy of self-guided interventions has only been studied in uncontrolled trials. The present study aims to examine the efficacy and acceptability of ICBT for OCD symptoms when delivered in a self-guided format using a randomized controlled trial design. In the present study, 190 participants were randomized to either a self-guided ICBT condition or a waitlist control group. 140 participants completed the baseline assessment, initiated treatment, and were included in the analyses. The between-group effect size at post-treatment was large on the self-report version of the Yale-Brown Obsessive-Compulsive Scale (dā€‰=ā€‰1.05; 95% CI 0.89-1.21). Twenty-seven percent of the ICBT condition met conservative criteria for clinically significant change at post-treatment, which increased to thirty-eight percent at three-month follow-up. Participants rated the program as highly acceptable. The results indicate that self-guided ICBT may be a viable treatment option for some individuals with OCD symptoms.

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