Related Experiment Video
Updated: Jun 27, 2026

The Forced Swim Test as a Model of Depressive-like Behavior
Published on: March 2, 2015
Pharmacogenetics of selective serotonin reuptake inhibitors in pediatric depression and anxiety
Sefi Kronenberg1, Amos Frisch, Beni Rotberg
1Feinberg Child Study Center, Schneider Children's Medical Center of Israel, 14 Kaplan Street, Petach-Tikva, 49202, Israel. sefik@013.net
Insights
Selective serotonin reuptuptake inhibitors (SSRIs) are a first-line treatment for pediatric depression and anxiety, but genetic markers could predict treatment response and side effects. Pharmacogenetic studies aim to identify these markers for personalized medicine.
Area of Science:
- Pharmacogenetics
- Neuroscience
- Pediatric Psychiatry
Background:
- Selective serotonin reuptake inhibitors (SSRIs) are first-line treatments for pediatric depression and anxiety.
- Current SSRI treatment response rates are suboptimal (55-60%), with risks of adverse effects like suicidality.
- Clinicians lack predictive tools to guide SSRI selection or identify at-risk youth.
Purpose of the Study:
- To review pharmacogenetic studies on pediatric SSRI treatment.
- To compare pediatric findings with adult pharmacogenetic data.
- To identify genetic markers associated with SSRI response and side effects in children.
Main Methods:
- Comprehensive literature review of pharmacogenetic studies in pediatric populations.
- Comparison of pediatric pharmacogenetic data with existing adult study results.
- Focus on genes involved in serotonergic pathways, including the serotonin transporter (5-HTT).
Main Results:
- Pharmacogenetic research is emerging but limited in pediatric samples.
- Serotonergic genes, particularly 5-HTT, are key targets for predicting SSRI response.
- Data suggest potential genetic influences on SSRI efficacy and suicidality risk.
Conclusions:
- Pharmacogenetics holds promise for personalizing SSRI treatment in pediatric depression and anxiety.
- Further research is needed to validate genetic markers for clinical use.
- Identifying genetic predictors can improve treatment outcomes and mitigate risks in youth.
Abstract:
Selective serotonin reuptake inhibitors (SSRIs) are now an accepted and widely used first-line treatment for pediatric depression and anxiety. However, the data indicate that SSRI treatment achieves a clinical response in only 55-60% of children, and some may develop drug-induced suicidal behavior. Clinicians have no reliable tools to help them identify in advance those youths who are not likely to respond to an SSRI, or who are likely to develop SSRI-induced suicidality. Pharmacogenetic research attempts to identify genetic markers that are associated with response and side-effect profile. This review covers all the pharmacogenetic studies conducted as yet on pediatric samples and compares them with available data on adult samples. An emphasis is put on serotonergic genes such as the serotonin transporter (5-HTT) and additional genes known to be active in the CNS.
Related Concept Videos
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
A study on guinea pigs examined the...
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs
Human Genetics
The complex relationship between genetics and psychology is observable through common biological components such...
Antidepressant Drugs: MAOIs and Other Agents
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase