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Ketamine shows long‐term benefit in patients with treatment‐resistant depression

The Brown University Psychopharmacology Update May 1, 2026 DOI: 10.1002/pu.31440 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Population Patients with treatment-resistant depression
Interventions Ketamine Esketamine
Duration 6-month period
Topics Depression Esketamine Ketamine
Key findings Ketamine or esketamine treatments led to a substantial reduction in emergency department visits for suicidality over six months, with a 56.7% response rate for depression symptoms after the acute phase.

Abstract

Patients with treatment‐resistant depression who received a series of treatments with ketamine or esketamine showed a substantial reduction in emergency department visits related to suicidality over a 6‐month period, a study has found. Study participants had a 56.7% response rate of depression symptoms following the acute phase of treatment.