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Intranasal esketamine for ECT-refractory bipolar depression: a case report
Muhammad Abbas1, Bruno Kallas2, Max Garris2
1Hackensack Meridian Raritan Bay Medical Center, Perth Amboy, NJ, United States.
Frontiers in Psychiatry
|August 14, 2026
Summary
Esketamine nasal spray improved symptoms in a patient with treatment-resistant bipolar depression. The patient relapsed upon dose reduction but improved again, showing good tolerability.
Area of Science:
- Neuroscience
- Psychiatry
- Pharmacology
Background:
- Bipolar depression is a challenging condition, often refractory to standard treatments like electroconvulsive therapy (ECT).
- Treatment-resistant depression (TRD) necessitates exploration of novel therapeutic agents.
- Esketamine, an NMDA receptor antagonist, has shown antidepressant effects.
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