Skip to content

Investigating the Effectiveness and Tolerability of Intranasal Esketamine Among Older Adults With Treatment-Resistant Depression (TRD): A Post-hoc Analysis from the REAL-ESK Study Group

Giacomo D’andrea, Stefania Chiappini, Roger S McIntyre, Giulia Stefanelli, Rosalba Carullo, Ileana Andriola, Raffaella Zanardi, Vassilis Martiadis, Stefano L. Sensi, Gabriele Sani, Massimo Clerici, Giorgio Di Lorenzo, Antonio Vita, Mauro Pettorruso, Giovanni Martinotti

American Journal of Geriatric Psychiatry July 8, 2023 DOI: 10.1016/j.jagp.2023.06.016 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Post-hoc analysis of a multicenter, retrospective, observational study Peer reviewed
Sample size 30
Population Adults aged 65 years or older with treatment-resistant depression
Intervention Esketamine nasal spray
Duration 3 months
Topics Anxiety Depression Esketamine
Keywords Tolerability Post-hoc analysis Depression economics Adverse effect Rating scale Antidepressant
Citations 36
Key findings Esketamine nasal spray was associated with a 53.3% response rate and 33.33% remission rate at 3 months in older adults with treatment-resistant depression, with common adverse effects including dizziness, dissociation, and sedation.

Abstract

Introduction: Treatment-resistant depression (TRD) is a serious and debilitating psychiatric disorder that frequently affects older patients. Esketamine nasal spray (ESK-NS) has recently been approved as a treatment for TRD, with multiple studies establishing its efficacy and tolerability. However, the real-world effectiveness, tolerability, and safety of this treatment in older adults is still unclear.

Objectives: To evaluate the efficacy and tolerability of ESK-NS in older subjects with TRD.

Methods: This is a post-hoc analysis of the REAL-ESK study, a multicenter, retrospective, observational study. Participants here selected were 65 years or older at baseline. The Montgomery-Åsberg Depression Rating Scale (MADRS) and the Hamilton Anxiety Rating Scale (HAM-A) were used to assess depressive and anxiety symptoms, respectively. Data were collected at three-time points: baseline, 1 month after the start of treatment (T1), and 3 months after treatment (T2).

Results: <0.001, Cohen's d = 1.419). At T2, 53.3% of subjects were responders (MADRS score reduced ≥50%), while 33.33% were in remission (MADRS<10). ESK-NS-related adverse effects were in order of frequency dizziness (50%), followed by dissociation (33.3%), sedation (30%), and hypertension (13.33%). Six out of 30 participants (20%) discontinued treatment.

Conclusions: Our findings provide preliminary evidence of ESK-NS effectiveness in older adults with TRD, a highly debilitating depressive presentation. Furthermore, we observe high levels of treatment-emergent adverse events, which, in the majority of instances, did not require treatment suspension.

In the evidence

This study is part of the evidence base for a synthesis in the library. Here is how each one recorded it.

  • Esketamine was associated with a 53.3% response rate and 33.3% remission rate at three months, with dizziness, dissociation, and sedation as common adverse effects.

    Synthesized

Comparable studies

Other observational and cohort studies on esketamine for anxiety, 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
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
Perioperative esketamine exposure and postoperative depression and anxiety in elderly patients undergoing joint replacement surgery: a retrospective cohort study Elderly patients aged 65–80 years undergoing unilateral hip or knee joint replacement... 2026 Retrospective cohort study n = 60
Is the reduction in suicidal ideation and deliberate self-harm during intranasal esketamine treatment independent of antidepressant response? A secondary, longitudinal analysis of a real-world TRD cohort with and without comorbid borderline personality disorder Real-world esketamine cohort enriched for comorbid borderline personality disorder 2026 Secondary analysis of a longitudinal cohort

Explore topics

By condition and practice