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Ketalux
Clinical Trials & Treatment-Resistant Depression

National Institutes of Health (NIH) and ketamine research

Clinical trials indicate ketamine's effectiveness for treatment-resistant depression and suicidal ideation.

Medically reviewed by: Pending medical review(draft)Last updated: May 18, 2026Evidence: Institutional research summary

Overview

The National Institute of Mental Health (NIMH), part of the NIH, has funded and conducted some of the most rigorous clinical trials on ketamine for depression, bipolar depression, and acute suicidal ideation. NIH-supported research underpins much of the modern evidence base for rapid-acting antidepressants.

Key contributions

  • Large-scale clinical trials on efficacy and safety in treatment-resistant depression
  • Research on biomarkers predicting treatment response
  • Studies on long-term outcomes with repeated dosing
  • Investigation of ketamine for acute suicidal ideation

Selected studies

Ketamine for treatment-resistant major depression

Archives of General Psychiatry · 2006

NIMH-led trial confirming robust, rapid antidepressant effect in patients who had failed prior treatments.

Effects of ketamine on suicidal ideation

American Journal of Psychiatry · 2018

Evidence that a single infusion can reduce suicidal thoughts within hours in high-risk patients.

Visit the institution

Learn more directly from NIH at https://www.nimh.nih.gov/.

Location: Bethesda, Maryland, USA. Studies listed here are representative and not exhaustive. For full literature, consult PubMed or the institution's own publications.

Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.