Cited by 963Treatment of Major DepressionBipolar Disorder and TreatmentElectroconvulsive Therapy Studies

A Randomized Add-on Trial of an N-methyl-D-aspartate Antagonist in Treatment-Resistant Bipolar Depression

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Diazgranados, Nancy, Ibrahim, Lobna, Brutsche, Nancy E., Newberg, Andrew, Kronstein, Phillip, Khalife, Sami, Kammerer, William A., Quezado, Zenaide +5 more·2010·Archives of General Psychiatry

Abstract

CONTEXT: Existing therapies for bipolar depression have a considerable lag of onset of action. Pharmacological strategies that produce rapid antidepressant effects-for instance, within a few hours or days-would have an enormous impact on patient care and public health. OBJECTIVE: To determine whether an N-methyl-D-aspartate-receptor antagonist produces rapid antidepressant effects in subjects with bipolar depression. DESIGN: A randomized, placebo-controlled, double-blind, crossover, add-on study conducted from October 2006 to June 2009. SETTING: Mood Disorders Research Unit at the National Institute of Mental Health, Bethesda, Maryland. Patients Eighteen subjects with DSM-IV bipolar depression (treatment-resistant). INTERVENTIONS: Subjects maintained at therapeutic levels of lithium or valproate received an intravenous infusion of either ketamine hydrochloride (0.5 mg/kg) or placebo on 2 test days 2 weeks apart. The Montgomery-Asberg Depression Rating Scale was used to rate subjects at baseline and at 40, 80, 110, and 230 minutes and on days 1, 2, 3, 7, 10, and 14 postinfusion. MAIN OUTCOME MEASURES: Change in Montgomery-Asberg Depression Rating Scale primary efficacy measure scores. RESULTS: Within 40 minutes, depressive symptoms significantly improved in subjects receiving ketamine compared with placebo (d = 0.52, 95% confidence interval [CI], 0.28-0.76); this improvement remained significant through day 3. The drug difference effect size was largest at day 2 (d = 0.80, 95% CI, 0.55-1.04). Seventy-one percent of subjects responded to ketamine and 6% responded to placebo at some point during the trial. One subject receiving ketamine and 1 receiving placebo developed manic symptoms. Ketamine was generally well tolerated; the most common adverse effect was dissociative symptoms, only at the 40-minute point. CONCLUSION: In patients with treatment-resistant bipolar depression, robust and rapid antidepressant effects resulted from a single intravenous dose of an N-methyl-D-aspartate antagonist.

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  1. [31]First MB Spitzer RL Gibbon M Williams AR Structured Clinical Interview for DSM-IV TR Axis I Disorders, Research Version, Patient Edition (SCID-I/P) 2001 New York State Psychiatric Institute, Biometrics Research New York, NY

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Authors
Diazgranados, N., Ibrahim, L., Brutsche, N. E., Newberg, A., Kronstein, P., Khalife, S., Kammerer, W. A., Quezado, Z., Luckenbaugh, D. A., Salvadore, G., Machado-Vieira, R., Manji, H. K., & Zarate, C. A.
Affiliations
  • National Institutes of Health (US)
  • University of North Carolina at Chapel Hill (US)
Venue
Archives of General Psychiatry
Published
2010-08-01
Volume
67
Issue
8
Pages
793
ISSN
0003-990X (ISSN-L)
OpenAlex
W2108403304
Cited by
963
References
50
Citations by year
2026: 14 · 2025: 45 · 2024: 31 · 2023: 40 · 2022: 56 · 2021: 68 · 2020: 76 · 2019: 52 · 2018: 66 · 2017: 55 · 2016: 81 · 2015: 96 · 2014: 73 · 2013: 80 · 2012: 73
FWCI
48.35
Type
journal article
Language
en
Open access
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (Z99 MH999999)
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Electroconvulsive Therapy Studies
Keywords
bipolar depression, treatment-resistant depression, ketamine, NMDA receptor antagonists, rapid antidepressant effects, intravenous infusion, lithium, valproic acid, manic symptoms
MeSH terms
Adolescent, Adult, Aged, Bipolar Disorder, Double-Blind Method, Drug Resistance, Drug Therapy, Combination, Female, Humans, Ketamine, Male, Middle Aged, Placebos, Psychiatric Status Rating Scales, Valproic Acid, N-Methylaspartate, Treatment Outcome, Lithium Compounds, Excitatory Amino Acid Antagonists, Diagnostic and Statistical Manual of Mental Disorders

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