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Published on: March 14, 2025
The pediatric obsessive-compulsive disorder treatment study: rationale, design, and methods
Martin Franklin1, Edna Foa, John S March
1Center for the Treatment and Study of Anxiety, Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
Insights
This study compares sertraline, cognitive-behavior therapy (CBT), their combination, and placebo for treating pediatric obsessive-compulsive disorder (OCD). It assesses treatment effectiveness and durability in young patients.
Area of Science:
- Child and Adolescent Psychiatry
- Clinical Psychology
- Pharmacology
Background:
- Obsessive-compulsive disorder (OCD) affects 1 in 200 children and adolescents, causing significant functional impairment.
- Selective serotonin reuptake inhibitors (SSRIs) and cognitive-behavior therapy (CBT) show efficacy, but partial response and treatment durability vary.
- Understanding optimal treatment strategies for pediatric OCD is crucial.
Purpose of the Study:
- To evaluate the relative benefits and durability of sertraline, CBT, combination therapy, and placebo in children and adolescents with OCD.
- To compare short-term efficacy and long-term outcomes of different treatment modalities.
- To inform clinical practice for pediatric OCD management.
Main Methods:
- A multicenter, randomized, masked clinical trial involving 120 subjects aged 7-17 with OCD.
- Stage 1: 12-week randomized comparison of sertraline, CBT, combination, and placebo.
- Stage 2: Open follow-up for responders, with tailored open-label treatment for non-responders or relapsed patients.
Main Results:
- The study design allows for a rigorous comparison of four distinct treatment arms.
- It investigates both immediate treatment response and the durability of effects after treatment discontinuation.
- Data will elucidate differential outcomes between medication, therapy, and combination approaches.
Conclusions:
- The Pediatric OCD Treatment Study provides a robust design to compare leading treatments for pediatric OCD.
- Findings will clarify the comparative effectiveness and long-term utility of sertraline, CBT, and their combination.
- This research aims to optimize treatment selection for improved patient outcomes.
Abstract:
Obsessive-compulsive disorder (OCD), which has a prevalence of 1 in 200 in children and adolescents, carries with it significant functional morbidity. A growing empirical literature supports the efficacy of short-term treatment with OCD-specific cognitive-behavior therapy (CBT) or medication management with a selective serotonin reuptake inhibitor. These and other studies also identify a substantial probability of partial response and, possibly, differences in durability when treatment is discontinued between medication and CBT. The Pediatric OCD Treatment Study is a multicenter, randomized, masked clinical trial designed to evaluate the relative benefit and durability of four treatments for children and adolescents with OCD: sertraline, CBT, combination of sertraline and CBT, and pill placebo. Stage 1 (12 weeks) is a balanced randomized comparison of these four treatments. Responders at the end of stage 1 advance to 4 months of open follow-up in their assigned arm during which all treatment is discontinued. At the end of stage 2 (if not before), nonresponders to any treatment at the end of stage 1, any patient relapsing in stage 2, and all stage 1 placebo patients receive open treatment that is tailored to the patient's needs. A volunteer sample of 120 subjects between the ages of 7 and 17 inclusive with a primary Diagnostic and Statistical Manual of Mental Disorders (fourth edition) diagnosis of OCD enters the study. All patients, regardless of responder status, return for all scheduled assessments. This report describes the design of the trial, the rationale for the design choices made, and the methods used to carry out the trial.
