Safety and tolerability of esketamine nasal spray versus quetiapine extended release in patients with treatment resistant depression.
Roger S McIntyre, Istvan Bitter, Jozefien Buyze, Andrea Fagiolini, Yordan Godinov, Philip Gorwood, Tetsuro Ito, Albino J Oliveira-Maia, Eduard Vieta, Tamara Werner-Kiechle, Allan H. Young, Andreas Reif
European Neuropsychopharmacology August 1, 2024 DOI: 10.1016/j.euroneuro.2024.05.009 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Randomized controlled trial Peer reviewed |
|---|---|
| Sample size | 670 |
| Population | Patients with treatment resistant depression |
| Interventions | Esketamine nasal spray Quetiapine extended release |
| Duration | 8-week treatment period, 32-week follow-up after remission |
| Topics | Depression Esketamine |
| Keywords | Drug tolerability Quetiapine Treatment‑resistant depression Depression treatment Antidepressant medication Drug safety Esketamine therapy |
| Citations | 30 |
| Registration | NCT04338321 |
| Key findings | Esketamine nasal spray had a more favorable tolerability profile than quetiapine extended release, with more frequent but transient and mild adverse events and fewer discontinuations. |
Abstract
In ESCAPE-TRD (NCT04338321), esketamine nasal spray (NS) significantly increased the probability of remission at Week 8, and of being relapse-free through Week 32 after remission at Week 8, versus quetiapine extended release (XR) in patients with treatment resistant depression (TRD). Here, we explore the time course, burden and consequences of treatment emergent adverse events (TEAEs) in the phase IIIb ESCAPE‑TRD trial. Patients with TRD were randomised 1:1 to esketamine NS or quetiapine XR, dosed per label alongside an ongoing selective serotonin reuptake inhibitor/serotonin norepinephrine reuptake inhibitor. In this secondary publication, safety analyses (comprising patients who received ≥1 dose of study treatment) included incidence, severity and durations (Kaplan‑Meier method) of TEAEs, and subsequent dispositional changes. P values were not adjusted for multiple testing. 336 patients were randomised to esketamine NS and 340 to quetiapine XR; 334 and 336 received ≥1 dose of study treatment, respectively. TEAEs were significantly more common with esketamine NS than quetiapine XR (91.9 % versus 78.0 %; p < 0.001), but were typically mild/moderate and transient in nature: a greater proportion resolved on the same-day (92.0 % versus 12.1 %) and lead to treatment discontinuation in significantly fewer patients (4.2 % versus 11.0 %, respectively; p < 0.001). The proportion of days spent with TEAEs was significantly lower with esketamine NS than quetiapine XR (median: 11.9 % versus 21.3 %; p < 0.001). Although more frequent with esketamine NS, TEAEs were typically transient and mild, with discontinuation less likely versus quetiapine XR. Data were consistent with established safety profiles, with no new safety signals identified. Alongside greater efficacy, the demonstrably more favourable tolerability profile of esketamine NS versus quetiapine XR further supports its use for TRD.
Comparable studies
Other randomized controlled trials on esketamine for depression, most cited first.
Citations in the library
Cited by 19
- Safety and efficacy with esketamine in treatment-resistant depression: long-term extension study. The International Journal of Neuropsychopharmacology June 6, 2025
- The Effects of Ketamine and Esketamine on Measures of Quality of Life in Major Depressive Disorder and Treatment-Resistant Depression: A Systematic Review. Journal of Affective Disorders August 1, 2025
- Improvements in functioning and workplace productivity with esketamine nasal spray versus quetiapine extended release in patients with treatment resistant depression: Findings from a 32-week randomised, open-label, rater-blinded phase IIIb study. European Neuropsychopharmacology April 1, 2025
- [Psychedelic and dissociative agents in psychiatry: challenges in the treatment]. Der Nervenarzt September 1, 2024
- Esketamine/Ketamine: Dual‐Action Mechanisms and Clinical Prospects beyond Anesthesia in Psychiatry, Immunology, and Oncology Advanced Science December 14, 2025
and 14 more in the library
Cites 5
- Management of Treatment-Resistant Depression: Challenges and Strategies Neuropsychiatric Disease and Treatment 2020
- Esketamine Nasal Spray Plus Oral Antidepressant in Patients With Treatment-Resistant Depression The Journal of Clinical Psychiatry April 20, 2020
- Esketamine Nasal Spray versus Quetiapine for Treatment-Resistant Depression New England Journal of Medicine October 4, 2023
- Long-Term Safety and Maintenance of Response With Esketamine Nasal Spray in Participants With Treatment-Resistant Depression: Interim Results of the SUSTAIN-3 Study Neuropsychopharmacology May 12, 2023
- Nationwide consensus on the clinical management of treatment-resistant depression in Italy: a Delphi panel Annals of General Psychiatry November 26, 2023