Cognitive-behavioral therapy for obsessive-compulsive disorder: a non-randomized comparison of intensive and weekly approaches.

This study examined the relative efficacy of intensive versus weekly cognitive-behavioral therapy (CBT) for adults with obsessive-compulsive disorder (OCD). Sixty-two adults with OCD received either 14 sessions of weekly (n=30) or intensive CBT (n=32; daily psychotherapy sessions) in a non-randomized format. Assessments were conducted at Pre-treatment, Post-treatment, and 3-month Follow-up by raters who were blind to treatment group at the Pre-treatment assessment. Intensive and weekly CBT were similar in efficacy at Post-treatment and Follow-up and associated with large treatment effect sizes. Since many people with OCD do not have access to trained CBT providers, intensive treatment may be a viable option in such cases.