Cited by 165Treatment of Major DepressionElectroconvulsive Therapy StudiesTryptophan and brain disorders

Clinical Predictors of Ketamine Response in Treatment-Resistant Major Depression

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Niciu, Mark J., Luckenbaugh, David A., Ionescu, Dawn F., Guevara, Sara, Machado-Vieira, Rodrigo, Richards, Erica M., Brutsche, Nancy E., Nolan, Neal M. +1 more·2014·The Journal of Clinical Psychiatry

Abstract

OBJECTIVE: The N-methyl-D-aspartate receptor antagonist ketamine has rapid antidepressant effects in treatment-resistant major depressive disorder (MDD) and bipolar depression. Clinical predictors may identify those more likely to benefit from ketamine within clinically heterogeneous populations. METHOD: Data were analyzed from 4 studies of treatment-resistant inpatients with DSM-IV-TR-diagnosed MDD or bipolar I or II depression. Patients who were currently experiencing a moderate-to-severe major depressive episode were enrolled between November 2004 and March 2013. All subjects received a single subanesthetic (0.5 mg/kg) ketamine infusion over 40 minutes. Patients were analyzed at the 230-minute postinfusion time point (n = 108), at day 1 (n = 82), and at day 7 (n = 71). Univariate Pearson correlations were performed for each variable with percent change from baseline in the 17-item Hamilton Depression Rating Scale (HDRS). Multivariate linear regression was then conducted for statistically significant predictors (P ≤ .05, 2-tailed). RESULTS: Higher body mass index correlated with greater HDRS improvement at 230 minutes (standardized β = -0.30, P = .004) and at day 1 (standardized β = -0.37, P = .001), but not at day 7 (standardized β = -0.18, P = .10). Family history of an alcohol use disorder in a first-degree relative was associated with greater HDRS improvement at day 1 (standardized β = -0.27, P = .014) and day 7 (standardized β = -0.41, P < .001). No prior history of suicide attempt(s) was associated with greater improvement only at day 7 (standardized β = 0.28, P = .01). The overall statistical model explained 13%, 23%, and 36% of HDRS percent change variance at 230 minutes, day 1, and day 7, respectively. CONCLUSIONS: Despite its post hoc nature, this study identified several clinical correlates of ketamine's rapid and durable antidepressant effects. Further investigation of these relationships is critical for individualized treatment of depression.

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Authors
Niciu, M. J., Luckenbaugh, D. A., Ionescu, D. F., Guevara, S., Machado-Vieira, R., Richards, E. M., Brutsche, N. E., Nolan, N. M., & Zarate, C. A.
Affiliations
National Institutes of Health (US)
Venue
The Journal of Clinical Psychiatry
Published
2014-05-15
Volume
75
Issue
05
Pages
e417-e423
ISSN
0160-6689 (ISSN-L)
OpenAlex
W2005055479
Cited by
165
References
41
Citations by year
2026: 10 · 2025: 15 · 2024: 13 · 2023: 12 · 2022: 12 · 2021: 21 · 2020: 21 · 2019: 7 · 2018: 12 · 2017: 8 · 2016: 10 · 2015: 16 · 2014: 7 · 2013: 1
FWCI
9.96
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health (Z99 MH999999)
  • National Institute of Mental Health
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Health Sciences › Medicine › Psychiatry and Mental health › Electroconvulsive Therapy Studies
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
ketamine, treatment-resistant depression, major depressive disorder, bipolar depression, antidepressant response, predictors of treatment response, body mass index, family history of alcoholism, suicide attempt history, NMDA receptor antagonists, rapid antidepressant effects, personalized treatment
MeSH terms
Adult, Bipolar Disorder, Major Depressive Disorder, Depressive Disorder, Major, Female, Follow-Up Studies, Humans, Infusions, Intravenous, Ketamine, Male, Middle Aged, Psychiatric Status Rating Scales, Severity of Illness Index, Time Factors, Body Mass Index, Receptors, N-Methyl-D-Aspartate, Treatment Outcome, Excitatory Amino Acid Antagonists, Depressive Disorder, Treatment-Resistant

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