• James I Hudson, Madelaine M Wohlreich, Daniel K Kajdasz, Craig H Mallinckrodt, John G Watkin, and Oleg V Martynov.
• McLean Hospital, Belmont, MA, USA.
• Hum Psychopharmacol. 2005 Jul 1; 20 (5): 327-41.

ObjectiveTo examine the safety and tolerability of the antidepressant duloxetine across multiple studies for major depressive disorder (MDD).MethodSafety data were integrated from the acute phases of eight double-blind, placebo-controlled trials in which patients were randomized to duloxetine (40-120 mg/d; n = 1139) or placebo (n = 777) for up to 9 weeks. This data set included all acute-phase clinical trials that formed the basis of the New Drug Application (United States) or European Union submission package for duloxetine in the treatment of MDD. Two studies included continuation phases in which acute treatment responders received duloxetine or placebo for an additional 26 weeks. Safety assessments included serious adverse event reports, rates of discontinuation, spontaneously reported treatment-emergent adverse events, changes in vital signs and laboratory values, and electrocardiograms.ResultsThe rates of serious adverse events for duloxetine- and placebo-treated patients were 0.3% and 0.6%, respectively (p = 0.282). Adverse events led to discontinuation in 9.7% of duloxetine-treated patients, compared with 4.2% of patients receiving placebo (p < 0.001). Treatment-emergent adverse events with an incidence for duloxetine > or = 5.0% and significantly greater than placebo were nausea, dry mouth, constipation, insomnia, dizziness, fatigue, somnolence, increased sweating and decreased appetite. Mean changes in blood pressure and heart rate were small, and the incidence of increases above normal ranges was low. Duloxetine-treated patients had a mean decrease in weight of 0.5 kg compared with an increase of 0.2 kg for patients receiving placebo (p < 0.001). No significant differences were found between duloxetine and placebo in the incidence of potentially clinically significant laboratory values at anytime while on treatment.ConclusionThese results are consistent with those obtained previously from smaller pooled data sets, and suggest that duloxetine is safe and well tolerated in patients with MDD.Copyright (c) 2005 John Wiley & Sons, Ltd.

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