ArticleBMC psychiatry2024
Serotonin transporter 5-HTTLPR polymorphism and escitalopram treatment response in patients with major depressive disorder.
Article in BMC psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- Clinical Efficacy Study of Escitalopram Combined With Low-Frequency Repetitive Transcranial Magnetic Stimulation in Patients With Post-Ischemic Stroke Depression and Anxiety.Actas espanolas de psiquiatria · 2026Article
- The Genetic Mosaic of Depression: Linking Polymorphisms to Neuroplasticity and Stress Regulation.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Review
- Transcutaneous auricular vagus nerve stimulation for major depressive disorder: current evidence and future research directions.Frontiers in psychiatry · 2026Review
- Pharmacogenetic Implications for Antidepressant Therapy in Major Depression: A Systematic Review Covering 2019-2024.Journal of clinical medicine · 2025Review
- The Role of the 5-HTTLPR Gene Variation of the SLC6A4 Serotonergic System in the Development of Addictive Disorders: A Narrative Review.Consortium psychiatricum · 2025Review
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
backgroundThere is no doubt that genetic factors have the potential to predict the therapeutic outcomes of antidepressants in patients with major depressive disorder (MDD). This study investigated the association between genetic variants involved in serotonin signaling and brain-derived neurotrophic factor (BDNF) with the response to escitalopram treatment in patients with MDD. We focused on examining the influence of 5-HTTLPR (ins/del), HTR2A rs9316233, BDNF rs962369, CYP2C19 and CYP2D6 on the clinical response to escitalopram.
methodsThe patients were recruited from outpatient psychiatric clinics in Košice between 2020 and 2022. Patients received escitalopram for 12 weeks at a fixed dose of 10 mg daily. Clinical assessment was done at baseline and after 4, 8, and 12 weeks using the 21-item Hamilton Depression Rating Scale (HAMD-21).
resultsAt the end of week 12, 57 (65%) patients were defined as responders to escitalopram treatment, while 31 (35%) patients were non-responders. Genotyping revealed that carriers of the short allele (S) of 5-HTTLPR exhibit a significantly lower therapeutic response to escitalopram measured by HAMD-21 than the long allele (L) carriers (p = 0.01). Adjusting for CYP2C19 and CYP2D6 metabolizer genotypes did not modify the observed relationship between 5-HTTLPR and treatment response. No significant associations were found for HTR2A rs9316233 or BDNF rs962369 variants and the treatment response.
conclusionsThese findings underscore the utility of 5-HTTLPR genotyping in guiding escitalopram therapy for MDD patients. Further research with larger cohorts is warranted to validate these results and elucidate additional genetic determinants of antidepressant efficacy.
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