Intranasal esketamine for depression: Not so special K
Stephen Rosenman
Australasian Psychiatry August 1, 2022 DOI: 10.1177/10398562221093870 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Review Peer reviewed |
|---|---|
| Topics | Depression Esketamine Ketamine |
| Citations | 2 |
| Key findings | Intranasal esketamine is less effective and has more unwanted effects than injected ketamine, yet it is the approved form for resistant depression. |
Abstract
Background: Intranasal esketamine has been recently approved for the treatment of resistant depression. It is the only form of ketamine approved. The formulation costs around $600 per dose while plain injected ketamine, on which most research has been done, costs less than $20 per dose. Research shows that intranasal esketamine is less effective and has more unwanted effects than injected ketamine, yet the approval means that this intranasal formulation will now be the form used and researched.
Conclusion: While the approval of an inferior treatment mode is understandable from the processes by which medicines are approved, we should think carefully about embracing this particular form of a promising treatment.
Comparable studies
Other narrative reviews on esketamine for depression, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Synthesizing the Evidence for Ketamine and Esketamine in Treatment-Resistant Depression: An International Expert Opinion on the Available Evidence and Implementation Adults with treatment-resistant depression | 2021 | Review | |
| Long-term safety of ketamine and esketamine in treatment of depression | 2022 | Review | |
| Ketamine, Esketamine, and Arketamine: Their Mechanisms of Action and Applications in the Treatment of Depression and Alleviation of Depressive Symptoms. | 2024 | Review | |
| Variations in BDNF and Their Role in the Neurotrophic Antidepressant Mechanisms of Ketamine and Esketamine: A Review. Patients with depression | 2024 | Narrative review | |
| The Possible Application of Ketamine in the Treatment of Depression in Alzheimer’s Disease | 2022 | Review |