Comparative efficacy of escitalopram in the treatment of major depressive disorder
Open accessAbstract
BACKGROUND: Escitalopram is an allosteric selective serotonin reuptake inhibitor (SSRI) with some indication of superior efficacy in the treatment of major depressive disorder. In this systematic review, we critically evaluate the evidence for comparative efficacy and tolerability of escitalopram, focusing on pooled and meta-analysis studies. METHODS: A literature search was conducted for escitalopram studies that quantitatively synthesized data from comparative randomized controlled trials in MDD. Studies were excluded if they did not focus on efficacy, involved primarily subgroups of patients, or synthesized data included in subsequent studies. Outcomes extracted from the included studies were weighted mean difference or standard mean difference, response and remission rates, and withdrawal rate owing to adverse events. RESULTS: The search initially identified 24 eligible studies, of which 12 (six pooled analysis and six meta-analysis studies) met the criteria for review. The pooled and meta-analysis studies with citalopram showed significant but modest differences in favor of escitalopram, with weighted mean differences ranging from 1.13 to 1.73 points on the Montgomery Asberg Depression Rating Scale, response rate differences of 7.0%-8.3%, and remission rate differences of 5.1%-17.6%. Pooled analysis studies showed efficacy differences compared with duloxetine and with serotonin noradrenaline reuptake inhibitors combined, but meta-analysis studies did not. The effect sizes of the efficacy differences increased in the severely depressed patient subgroups. CONCLUSION: Based on pooled and meta-analysis studies, escitalopram demonstrates superior efficacy compared with citalopram and with SSRIs combined. Escitalopram shows similar efficacy to serotonin noradrenaline reuptake inhibitors but the number of trials in these comparisons is limited. Efficacy differences are modest but clinically relevant, especially in more severely depressed patients.
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- Authors
- Lam, R., & Ali
- Affiliations
- University of British Columbia (CA)
- University of British Columbia Hospital (CA)
- Corresponding author
- Lam, Raymond
- ORCID
- Lam, Raymond
- Venue
- Neuropsychiatric Disease and Treatment
- Publisher
- Informa UK Limited
- Published
- 2011-02
- Volume
- 7
- Pages
- 39
- ISSN
- 1176-6328 (ISSN-L)
- PMC
- PMC3056172
- OpenAlex
- W2075394137
- Cited by
- 33
- References
- 59
- Citations by year
- 2025: 1 · 2023: 2 · 2021: 4 · 2019: 2 · 2018: 1 · 2016: 3 · 2015: 3 · 2014: 6 · 2013: 4 · 2012: 5
- FWCI
- 3.98
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Neuropsychiatric Disease and Treatment (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
- Topics
- Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Social Sciences › Psychology › Clinical Psychology › Psychotherapy Techniques and Applications
- Keywords
- escitalopram, major depressive disorder, selective serotonin reuptake inhibitors, citalopram, duloxetine, serotonin-norepinephrine reuptake inhibitors, antidepressant efficacy, drug tolerability, severe depression, pooled analysis, meta-analysis
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