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PSYCHIATRY

Escitalopram Therapy for Major Depression and Anxiety Disorders

Reader in Psychiatry, Clinical Neuroscience Division, University Department of Mental Health, Royal South Hants Hospital, Southampton, England

Elin Heldbo Reines, MD

Senior Specialist, International Safety and Pharmacovigilance, H. Lundbeck A/S, Copenhagen, Denmark

Christina Guiton, MD

Head of Department, International Safety and Pharmacovigilance, H. Lundbeck A/S, Copenhagen

Emmanuelle Weiller, PhD

Senior Scientific Advisor, Mood Disorders, H. Lundbeck A/S, Copenhagen

Reprints: Dr. Baldwin, University Department of Mental Health, Royal South Hants Hospital, Graham Road, Southampton, SO14 0YG, UK, fax 44 (0) 2380 234243, dsb1{at}soton.ac.uk

BACKGROUND: Randomized controlled clinical trials have demonstrated that escitalopram is efficacious in a range of mood and anxiety disorders, but the individual trials are insufficiently large to allow a full exploration of its tolerability.

OBJECTIVE: To assess the tolerability and safety of escitalopram through analysis of all randomized controlled clinical trials in major depressive disorder and anxiety disorders.

METHODS: Analyses of tolerability were based on data from all available randomized, double-blind, controlled studies completed by December 2006 in which escitalopram was compared with placebo or active compounds (citalopram, fluoxetine, paroxetine, sertraline, venlafaxine). Adverse events (AEs) that occurred more frequently with escitalopram than with placebo were listed, and tolerability and safety were evaluated.

RESULTS: Nausea was the only AE with an incidence greater than or equal to 10% and 5 percentage points greater than with placebo during short-term treatment. In general, AEs were mild to moderate in severity. AEs related to sexual dysfunction were similarly frequent with escitalopram and citalopram, but were higher with paroxetine. No suicide occurred among escitalopram-treated patients, and there were no significant differences between escitalopram and placebo in incidence of suicidal behavior, measured by self-harm and suicidal thoughts. The 8 week withdrawal rate due to AEs was higher with escitalopram than with placebo (7.3% vs 2.8%; p < 0.001) but lower than with paroxetine (6.6% vs 9.0%; p < 0.01) or venlafaxine (6.1% vs 13.2%; p < 0.01) (Fisher's Exact test, 2 tailed). Compared with paroxetine, escitalopram resulted in significantly fewer discontinuation symptoms (average increase in Discontinuation Emergent Signs and Symptoms Scale of 1.6 vs 3.9; p < 0.01). There were no clinically relevant changes in clinical laboratory values in patients treated with escitalopram. Mean weight change after 6 months of treatment with escitalopram (0.58 ± 2.63 kg) was similar to that with placebo (0.15 ± 2.33 kg). The incidence of cardiovascular events was similar to that with placebo. The risk of AEs was no higher in special patient populations, such as the elderly (65 y of age) or those with hepatic dysfunction.

CONCLUSIONS: Based on data from randomized controlled trials involving more than 4000 escitalopram-treated patients, escitalopram (10-20 mg/day) is safe and well tolerated in short- and long-term treatment.

Key Words: adverse events, escitalopram, tolerability

Published Online, September 11, 2007. www.theannals.com, DOI 10.1345/aph.1K089

This article has been cited by other articles:

				I. Anderson, I. Ferrier, R. Baldwin, P. Cowen, L Howard, G Lewis, K Matthews, R. McAllister-Williams, R. Peveler, J Scott, et al. Evidence-based guidelines for treating depressive disorders with antidepressants: A revision of the 2000 British Association for Psychopharmacology guidelines J Psychopharmacol, June 1, 2008; 22(4): 343 - 396. [Abstract] [PDF]