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Adverse drug events and toxicological mechanisms of esketamine: a study based on US Food and Drug Administration Adverse Event Reporting System and network toxicology analysis.

Lu Wang, Rui Xiong, Hengxu Liu, Shipeng Zhang, Ling Xu, Xiaodan Lai

Naunyn-Schmiedeberg's Archives of Pharmacology February 26, 2026 DOI: 10.1007/s00210-026-05108-z (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational pharmacovigilance study Peer reviewed
Sample size 7,804
Population Individuals with esketamine-related adverse drug event reports in the FDA Adverse Event Reporting System (FAERS), analyzed by age subgroup
Intervention Esketamine
Duration Case reports from the first quarter of 2019 through the second quarter of 2024; most adverse events reported within 30 days of treatment start
Topics Esketamine
Keywords Humans Antidepressive agents Age factors Adolescent Child, preschool Infant United states Female Pharmacovigilance Network toxicology
Citations 1
Key findings Esketamine-related adverse drug event reporting differed by age, with three age subgroups identified and eight general preferred-term signals shared across all subgroups. Most events were reported within 30 days of treatment start, and time-to-onset tended to lengthen with increasing age. Network toxicology suggested potential mechanisms involving calcium signaling, lipid and atherosclerosis, and PI3K/Akt signaling pathways.

Abstract

Esketamine is a novel antidepressant approved by the US Food and Drug Administration (FDA) in 2019, but comprehensive studies on the post-marketing safety evaluation of esketamine across age groups remain limited. The objective of this study is to provide the age-based pharmacovigilance profile of esketamine and the potential toxicological mechanisms, which may provide insights to inform the development of rational and personalized drug use. In our study, age-related differences in adverse drug event (ADE) reporting were explored through data mining of the FDA Adverse Event Reporting System (FAERS), and the potential mechanism of esketamine-related ADE was explored through network toxicology analysis. A total of 7804 cases are extracted between the first quarter of 2019 and the second quarter of 2024. The disproportionality analysis determined 8754 ADEs involving 223 preferred terms (PTs) and 19 system organ classes (SOCs) overall. Three subgroups are identified by the age of ADEs occurrence. Eight general PT signals were identified across all subgroups. Some important age-specific ADEs are highlighted and analyzed. The time-to-onset analysis reveals that most of the ADEs are reported within 30 days from the start of treatment. And the time exhibits a trend of prolongation as age increases. The potential underlying mechanisms of ADEs of esketamine may involve multiple and complex signaling pathways, such as the calcium signaling pathway, lipid and atherosclerosis, and the PI3K/Akt signaling pathway. The results indicate differential reporting of esketamine-related ADEs based on age. Accordingly, the hypothesis-generating suggestions for implementing the personalized ADE monitoring and health care based on age in esketamine treatment are discussed.

Comparable studies

Other observational and cohort studies on esketamine, most cited first.

Study Year Design Participants
Treating bipolar depression with esketamine: Safety and effectiveness data from a naturalistic multicentric study on esketamine in bipolar versus unipolar treatment‐resistant depression Patients with treatment-resistant bipolar depression (B-TRD) and unipolar... 2023 Observational cohort n = 70
Comparative Effectiveness of Intravenous Ketamine and Intranasal Esketamine in Clinical Practice Among Patients With Treatment-Refractory Depression: An Observational Study. Adults with treatment-resistant depression 2023 Observational study n = 62
Predicting outcome with Intranasal Esketamine treatment: A machine-learning, three-month study in Treatment-Resistant Depression (ESK-LEARNING) Treatment-resistant depression patients 2023 Retrospective, multicentric, real-world study n = 149
Esketamine in treatment-resistant depression patients comorbid with substance-use disorder: A viewpoint on its safety and effectiveness in a subsample of patients from the REAL-ESK study Patients with treatment-resistant depression and a substance use disorder 2023 Observational, retrospective, multicentre study n = 26
Rapid infusion of esketamine for unipolar and bipolar depression: a retrospective chart review Patients with treatment-resistant depression and bipolar depression meeting DSM-IV-TR... 2017 Retrospective observational study n = 27

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