Psychotherapy and psychosomatics · 2026
Short-Term Psychodynamic Therapy of Obsessive-Compulsive Disorder: A Randomized Controlled Trial of Unmedicated Patients.
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Leichsenring Falk, Steinert Christiane, Biskup Joachim, Feix Lila Alina, Heim Nikolas, Nimis Britta, Kreische Reinhard, Nöske Fatima, Ruckes Christian, Weiss Heinz, Reich Günter, Starck Annabelle
Аннотация
INTRODUCTION: Obsessive-compulsive disorder (OCD) is an often chronic and disabling mental disorder. Cognitive-behavioral therapy and serotonin-reuptake inhibitors and their combination are first-line treatments. However, about 50% of the patients do not achieve response or remission, although many patients received additional pharmacotherapy. These results highlight the need for additional evidence-based treatment options.
METHODS: In a randomized controlled trial (RCT), a manual-guided method of short-term psychodynamic therapy (STPP) for OCD was tested against a waiting list condition. Thirty-seven unmedicated patients were randomly assigned to STPP, 30 to the waiting list. The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) total score post-therapy assessed by trained and masked raters was the primary outcome. Secondary outcomes included response, remission, depression, interpersonal problems, and obsessive beliefs.
RESULTS: In the intention-to-treat sample, STPP achieved a significantly lower Y-BOCS score (p < 0.0001) than the waiting list condition, associated with a large between-group effect size (d = 1.04). The mean difference of change in the Y-BOCS between baseline and post-therapy or waiting period assessment was -11.49 (95% CI -14.36, -8.63) for STPP and -1.10 (95% CI -4.29, 2.10) in the waiting list. Remission rates were 60% vs. 20% (p = 0.0006), response rates 64% vs. 16% (p = 0.0003) in favor of STPP.
CONCLUSION: In a first RCT, manual-guided STPP proved to be efficacious in OCD with a clinically meaningful improvement, thereby broadening the spectrum of evidence-based interventions. Of note, our study is one of the few trials using psychotherapy as a monotherapy in OCD, showing effects of psychotherapy alone. Further research is needed to confirm these first findings and to compare STPP with other established treatments.
METHODS: In a randomized controlled trial (RCT), a manual-guided method of short-term psychodynamic therapy (STPP) for OCD was tested against a waiting list condition. Thirty-seven unmedicated patients were randomly assigned to STPP, 30 to the waiting list. The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) total score post-therapy assessed by trained and masked raters was the primary outcome. Secondary outcomes included response, remission, depression, interpersonal problems, and obsessive beliefs.
RESULTS: In the intention-to-treat sample, STPP achieved a significantly lower Y-BOCS score (p < 0.0001) than the waiting list condition, associated with a large between-group effect size (d = 1.04). The mean difference of change in the Y-BOCS between baseline and post-therapy or waiting period assessment was -11.49 (95% CI -14.36, -8.63) for STPP and -1.10 (95% CI -4.29, 2.10) in the waiting list. Remission rates were 60% vs. 20% (p = 0.0006), response rates 64% vs. 16% (p = 0.0003) in favor of STPP.
CONCLUSION: In a first RCT, manual-guided STPP proved to be efficacious in OCD with a clinically meaningful improvement, thereby broadening the spectrum of evidence-based interventions. Of note, our study is one of the few trials using psychotherapy as a monotherapy in OCD, showing effects of psychotherapy alone. Further research is needed to confirm these first findings and to compare STPP with other established treatments.