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  • Title: Remission and Relapse Across Three Years in Pediatric Obsessive-Compulsive Disorder Following Evidence-Based Treatments.
    Author: Ivarsson T, Jensen S, Højgaard DRMA, Hybel KA, Torp NC, Melin K, Nissen JB, Weidle B, Thomsen PH, Dahl K, Skarphedinsson G.
    Journal: J Am Acad Child Adolesc Psychiatry; 2024 May; 63(5):519-527. PubMed ID: 38070870.
    Abstract:
    OBJECTIVE: To examine relapse rates following remission in a 3-year follow-up study in pediatric patients with obsessive-compulsive disorder (OCD) treated with cognitive-behavioral therapy (CBT) in a first step, and either continued CBT or sertraline (randomized selection) in a second step. METHOD: Participants (N = 269) fulfilled DSM-IV OCD criteria with a mean severity on the Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS) of 24.6 (SD = 5.1) and were included in analyses according to intent-to-treat principles. CBT used manualized exposure and response prevention (ERP) during both steps 1 and 2, and step 2 sertraline medication used flexible dosing. The follow-up schedules were timed to 6, 12, 24, and 36 months following step 1 CBT. Remission was defined as a CY-BOCS score ≤10 and relapse as an elevated CY-BOCS score ≥16 in those who had remitted. RESULTS: A good third of our patients were in stable and full remission at all examinations (n = 98, 36.4%). Further, some in remission following treatment (n = 36, 13.4%) had mild OCD at some examinations. Relapses during follow-up were not uncommon (n = 28, 10.4%), but in many patients these improved again (n = 10, 3.7%) and were in remission at the final 3-year follow-up. Furthermore, a considerable proportion (n = 50, 18.6%) of the patients were initial non-remitters to the treatment but achieved remission at some point during the follow-up. In addition, 11.5% (n = 31) had persistent OCD but reached remission by the last follow-up. Finally, a smaller segment of our sample (9.7%, n = 26), did not attain remission at any point during the study. CONCLUSION: Our outcome paints a more promising picture of pediatric OCD long-term outcome than previous studies have done. However, both relapse rates and the presence of initial non-remitters and persistent OCD show that treatments need improvement, particularly for those who respond slowly, partially, or not at all. The lack of a general psychiatric interview at follow-up is a marked limitation. CLINICAL TRIAL REGISTRATION INFORMATION: Nordic Long-term Obsessive compulsive disorder (OCD) Treatment Study; https://www.isrctn.com; ISRCTN66385119.
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