COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

Family history of alcohol dependence and initial antidepressant response to an N-methyl-D-aspartate antagonist

Laura E Phelps, Nancy Brutsche, Jazmin R Moral, David A Luckenbaugh, Husseini K Manji, Carlos A Zarate
Biological Psychiatry 2009 January 15, 65 (2): 181-4
18996507

BACKGROUND: A high rate of comorbidity exists between mood disorders and alcohol dependence. Furthermore, both ketamine, a dissociative anesthetic with a recently described rapid-onset antidepressant effect, and ethanol are N-methyl-D-aspartate (NMDA) receptor antagonists. Previous investigations of healthy individuals with a family history of alcohol dependence have found that these individuals have an attenuated response to ketamine's perceptual disturbance and dysphoric effects similar to that found in individuals with a self-reported history of alcohol dependence. This study investigated whether a family history of alcohol dependence influences ketamine's initial antidepressant effect.

METHODS: Twenty-six subjects with DSM-IV treatment-resistant major depression were given an open-label intravenous infusion of ketamine hydrochloride (.5 mg/kg) and rated using various depression scales at baseline, 40, 80, 120, and 230 min postinfusion. The primary outcome measure was Montgomery-Asberg Depression Rating Scale (MADRS) scores.

RESULTS: Subjects with a family history of alcohol dependence showed significantly greater improvement in MADRS scores compared with subjects who had no family history of alcohol dependence.

CONCLUSIONS: A family history of alcohol dependence appears to predict a rapid initial antidepressant response to an NMDA receptor antagonist.

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