A Double-Blind Comparison of Escitalopram and Venlafaxine Extended Release in the Treatment of Major Depressive Disorder

Autor: Robert J. Bielski, Chung-Chi Chang, Daniel Ventura
Rok vydání: 2004
Předmět:
Zdroj: The Journal of Clinical Psychiatry. 65:1190-1196
ISSN: 0160-6689
DOI: 10.4088/jcp.v65n0906
Popis: Background: Escitalopram is the most selective serotonin reuptake inhibitor (SRI) antidepressant available. Venlafaxine is a nonselective SRI that also inhibits noradrenergic reuptake. This study compared escitalopram and venlafaxine extended release (XR) in depressed outpatients at the highest doses recommended in the United States. Method: In this randomized trial, patients (diagnosis of DSM-IV-defined major depressive disorder; baseline Hamilton Rating Scale for Depression score of ≥ 20) received 1 week of single-blind placebo treatment, followed by 8 weeks of double-blind, fixed-dose treatment with either escitalopram or venlafaxine XR (rapidly titrated to 20 mg/day and 225 mg/day, respectively, in accordance with prescribing information). The primary efficacy variable was change from baseline to week 8 in Montgomery-Asberg Depression Rating Scale (MADRS) total score. Data were collected from May to December 2002. Results: Mean baseline MADRS scores for the escitalopram (N = 97) and venlafaxine XR (N = 98) groups were 30.7 and 30.0, respectively. There were no significant differences in measures of efficacy between the 2 antidepressants. Mean changes from baseline to endpoint in MADRS total score for escitalopram and venlafaxine XR were -15.9 and -13.6, respectively. Remission (MADRS score of ≤ 10) rates at endpoint were 41.2% for escitalopram and 36.7% for venlafaxine XR. Response (≥ 50% reduction from baseline MADRS score) rates for the escitalopram and venlafaxine XR groups were 58.8% and 48.0%, respectively. Tolerability measures favored escitalopram over venlafaxine XR treatment. The venlafaxine XR group had a higher incidence than the escitalopram group of treatment-emergent adverse events (85.0% vs. 68.4%) and discontinuation due to adverse events (16.0% vs. 4.1%; p
Databáze: OpenAIRE