• J Clin Psychopharmacol · Jun 2010

    Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial

    A pooled MADRS/IDS cross-correlation analysis: clinician and patient self-report assessment of improvement in core depressive symptoms with adjunctive aripiprazole.

    • Frederick W Reimherr, Michael L Martin, James M Eudicone, Barrie K Marchant, Quynh-Van Tran, Andrei Pikalov, Ronald N Marcus, Robert M Berman, and Berit X Carlson.
    • University of Utah School of Medicine, Salt Lake City, UT 84123, USA. fred.reimherr@hsc.utah.edu
    • J Clin Psychopharmacol. 2010 Jun 1; 30 (3): 300-5.

    BackgroundThese analyses aimed to examine the pattern of improvement in depression symptoms with adjunctive aripiprazole.MethodsData were pooled (724 subjects: n = 356 placebo, n = 368 aripiprazole) from 2 double-blind, 6-week aripiprazole studies. Pearson correlation coefficients (r) were calculated between changes on the Montgomery-Asberg Depression Rating Scale (MADRS) line items and selected Inventory of Depressive Symptomatology (IDS) line items using last observation carried forward. The magnitude of change was expressed as a between-group effect size (ES).ResultsAt end point, adjunctive aripiprazole demonstrated significant improvement versus antidepressant therapy alone in 8 of the 10 MADRS items (MADRS total score Cohen effect size = 0.37) and 12 of the 30 IDS items (IDS total score Cohen ES = 0.18). Analysis of correlation data identified 5 MADRS items assessing mood, lassitude, inability to feel, self-worth, and suicidal thoughts that correlated with similar IDS items; these showed a similar pattern of rapid, sustained response to adjunctive aripiprazole and a similar ES. Other symptoms associated with depression (tension associated with feeling anxious, irritability, and lack of concentration) did not show statistically significant changes on either scale at end point. The IDS identified an additional 3 important depression-related symptoms (diminished libido, view of self, and interpersonal sensitivity) that showed significant rapid and sustained improvement with adjunctive aripiprazole.ConclusionsThis cross-correlation analysis confirmed that improvement in core depressive symptoms with adjunctive aripiprazole was identified by both clinicians and patients. Clinically, these changes were maintained during the study. Theoretically, these findings lead to important questions regarding neurochemical changes produced by aripiprazole when used in combination with antidepressants.

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