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Ketamine in treatment-resistant depression: A review of completed investigations

S. Verma

2015 DOI: 10.4103/0971-9903.151741 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Review
Sample size 360
Population Patients with treatment-resistant depression across 15 clinical trials
Intervention Ketamine
Measures Montgomery-Åsberg Depression Rating Scale, Hamilton Rating Scale for Depression
Topics Depression Esketamine Ketamine
Key findings Across 15 trials of 360 patients with treatment-resistant depression, 15-90% of patients showed a greater than 50% reduction in depression rating scale scores at 4 hours after infusional ketamine, but response rates decreased significantly over time, indicating a rapid yet short-lived antidepressant effect.

Abstract

Background and

Objective: The objective was to evaluate clinical trial data on the use of ketamine in treating treatment-resistant depression (TRD).

Materials and Methods: PubMed search (November 2012) was initiated using the keywords: Ketamine, resistant depression. Inclusion criterion included: English language publications describing clinical trial reports on humans with TRD.

Results: A total of 360 patients across 15 clinical trials with TRD were treated with infusional ketamine. On average 15-90% of patients reported a >50% decrease in their baseline Montgomery-Åsberg Depression Rating Scale/Hamilton Rating Scale for Depression scores at 4 h. Response rates decreased significantly as time progressed.

Conclusion: Infusional ketamine has a significant rapid, short-term antidepressant effect in the treatment of TRD.

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