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Effect of aripiprazole augmentation of serotonin reuptake inhibitors or clomipramine in treatment-resistant obsessive-compulsive disorder: a double-blind, placebo-controlled study.

Author(s): Muscatello MR, Bruno A, Pandolfo G, Mico U, Scimeca G, Romeo VM, Santoro V, Settineri S, Spina E, Zoccali RA

Affiliation(s): Section of Psychiatry, Department of Neurosciences, Psychiatric and Anaesthesiological Sciences, University of Messina, Messina, Italy.

Publication date & source: 2011-04, J Clin Psychopharmacol., 31(2):174-9.

Based on the evidence that aripiprazole added to serotonin reuptake inhibitors (SRIs) or clomipramine in treatment-resistant obsessive-compulsive disorder (OCD) has reported promising results, the present 16-week, double-blind, randomized, placebo-controlled trial had the aim to explore the efficacy of aripiprazole add-on pharmacotherapy on clinical symptoms and cognitive functioning in a sample of treatment-resistant OCD patients receiving SRIs. After clinical and neurocognitive assessments, patients were randomly allocated to receive, in a double-blind design, 15 mg/d of aripiprazole or a placebo. A final sample of 30 patients completed the study. The results obtained indicate that aripiprazole added to stable SRI treatment substantially improved obsessive-compulsive symptoms as measured by changes on the Yale-Brown Obsessive Compulsive Scale total score and subscores (obsessions, P = 0.007; compulsions, P = 0.001; total score, P < 0.0001). Regarding cognitive functions, improvement was observed in some explored areas, such as attentional resistance to interference (Stroop score, P = 0.001) and executive functioning (perseverative errors, P = 0.015). The findings provide evidence that aripiprazole augmentation of SRIs/clomipramine treatment is well tolerated and may be proposed as an effective therapeutic strategy to improve outcome in treatment-resistant OCD.

Page last updated: 2011-12-09

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