Skip Navigation LinksHome > July 2012 - Volume 27 - Issue 4 > A randomized, double-blind, placebo-controlled, duloxetine-r...
International Clinical Psychopharmacology:
doi: 10.1097/YIC.0b013e3283542457
Original Articles

A randomized, double-blind, placebo-controlled, duloxetine-referenced, fixed-dose study comparing the efficacy and safety of Lu AA21004 in elderly patients with major depressive disorder

Katona, Corneliusa; Hansen, Thomasb; Olsen, Christina Kurreb

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Abstract

The efficacy and tolerability of Lu AA21004 at 5 mg/day, a novel multimodal antidepressant, were assessed in elderly patients with recurrent major depressive disorder. Patients were randomly assigned (1 : 1 : 1) to Lu AA21004 5 mg/day, duloxetine 60 mg/day (reference) or to placebo in an 8-week double-blind study. The primary efficacy measure was the 24-item Hamilton Depression Scale (HAM-D24) total score (analysis of covariance, last observation carried forward). Patients (mean age 70.6 years) had a mean baseline HAM-D24 score of 29.0. Lu AA21004 showed significantly (P=0.0011) greater improvement on the primary efficacy endpoint compared with placebo at week 8 (3.3 points). Duloxetine also showed superiority to placebo at week 8, thereby validating the study. HAM-D24 response (53.2 vs. 35.2%) and HAM-D17 remission (29.2 vs. 19.3%) rates at endpoint were higher for Lu AA21004 than for placebo. Lu AA21004 showed superiority to placebo in cognition tests of speed of processing, verbal learning and memory. The withdrawal rate due to adverse events was 5.8% (Lu AA21004), 9.9% (duloxetine) and 2.8% (placebo). Whereas nausea was the only adverse event with a significantly higher incidence on treatment with Lu AA21004 (21.8%) compared with placebo (8.3%), the incidence of nausea, constipation, dry mouth, hyperhidrosis and somnolence was higher for duloxetine. In conclusion, Lu AA21004 was efficacious and well tolerated in the treatment of elderly patients with recurrent major depressive disorder.

© 2012 Lippincott Williams & Wilkins, Inc.

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