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Efficacy of Vortioxetine on Cognitive Functioning in Working Patients With Major Depressive Disorder.

Efficacy of Vortioxetine on Cognitive Functioning in Working Patients With Major Depressive Disorder.
Author Information (click to view)

McIntyre RS, Florea I, Tonnoir B, Loft H, Lam RW, Christensen MC,


McIntyre RS, Florea I, Tonnoir B, Loft H, Lam RW, Christensen MC, (click to view)

McIntyre RS, Florea I, Tonnoir B, Loft H, Lam RW, Christensen MC,

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The Journal of clinical psychiatry 2016 Oct 25() doi 10.4088/JCP.16m10744
Abstract
OBJECTIVE
This post hoc analysis investigates the effect of vortioxetine on cognitive functioning and depressive symptoms in working adults with major depressive disorder (MDD).

METHODS
Population data from FOCUS, a double-blind, randomized, placebo-controlled study investigating the efficacy of vortioxetine versus placebo on cognitive functioning and depression in patients with MDD, were used to analyze mean change from baseline scores for the Digit Symbol Substitution Test (DSST), Trail Making Test A/B (TMT-A/B), Stroop, and Perceived Deficits Questionnaire (PDQ). FOCUS, conducted from December 2011 through May 2013, included adult patients with recurrent MDD according to DSM-IV-TR criteria. Change in depression severity (Montgomery-Asberg Depression Rating Scale [MADRS] total score) was analyzed using data from 3 additional short-term placebo-controlled studies (2 of which included duloxetine) and 1 relapse prevention study. Analyses were done according to patients’ working status at baseline and workplace position. All analyses were made versus placebo.

RESULTS
In FOCUS, the effect versus placebo on the DSST was 5.6 for 10 mg and 5.0 for 20 mg (P < .001 for both doses) in working patients; the effect was 4.0 (P < .001 for both doses) in total study population. The effect remained significant when adjusting for change in MADRS. In patients with "professional" positions, the effect was 9.2 for 10 mg (P = .006) and 9.0 for 20 mg (P = .001). A similar pattern of results was also observed for TMT-A/B, Stroop, PDQ, and MADRS total score. The efficacy of duloxetine was not different in working patients (MADRS). CONCLUSIONS
The beneficial effects of vortioxetine on objective and subjective measures of cognitive functioning are greater in working patients with MDD; the observed benefits were independent of improvement in depressive symptoms.

TRIAL REGISTRATION
This study is a secondary analysis of data from 5 registered trials: ClinicalTrials.gov identifiers: NCT01422213, NCT00635219, NCT00735709, NCT01140906, NCT00596817​.

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