Sudden gains in cognitive behavioral therapy among children and adolescents with obsessive compulsive disorder

Eric A. Storch, Joseph F. McGuire, Sophie C. Schneider, Brent J. Small, Tanya K. Murphy, Sabine Wilhelm, Daniel A. Geller

Research output: Contribution to journalArticlepeer-review


Background and objectives: This study examined the occurrence of sudden gains (or reversal of gains) among children with obsessive-compulsive disorder (OCD) during the course of cognitive-behavioral therapy (CBT), as well as the association of sudden gains with treatment response, treatment group, and pre-treatment clinical characteristics. Methods: The sample consisted of 136 youth (ages 7–17) with a primary diagnosis of OCD who were randomized in a double-blinded fashion to 10 sessions of CBT with augmentation of either D-cycloserine or placebo. Sudden gain status was determined based on clinician-rated obsessive-compulsive symptom severity, which was collected on 9 occasions across the study period. Results: 42.6% of youth experienced at least one sudden gain, which tended to occur either after starting exposure and response prevention or towards the end of treatment. After applying the Benjamini-Hochberg procedure for multiple comparisons, there were no significant pre-treatment predictors of sudden gains and only reduced insight predicted the reversal of gains. Individuals with at least one sudden gain had improved overall treatment outcomes, measured both by reduction in OCD symptom severity, and by global illness severity. Limitations: Several clinical constructs were not examined. Symptomatology was not assessed at every treatment session. Differences in those who achieved sudden gains and those who did not may be obscured. There is the possibility that a sudden gain reflected a scoring error generated by an optimistic or inaccurate report. Finally, a relatively homogenous sample may limit the generalizability of results. Conclusions: The course of CBT for pediatric OCD is variable with many children experiencing sudden gains, but a sizable percentage experience a reversal of gains which was related to reduced insight. Sudden gains tended to occur after starting exposure and response prevention and towards the end of treatment. Trialsregistration: ClinicaltrialsgovRegistry:NCT00864123.

Original languageEnglish (US)
Pages (from-to)92-98
Number of pages7
JournalJournal of Behavior Therapy and Experimental Psychiatry
StatePublished - Sep 2019


  • Children
  • Cognitive-behavioral therapy
  • Obsessive-compulsive disorder
  • Sudden gains

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Arts and Humanities (miscellaneous)
  • Clinical Psychology
  • Psychiatry and Mental health


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