Abstract
BACKGROUND:
Antidepressant response to a single sub-anesthetic dose infusion of the glutamatergic modulator ketamine is transient in most depressed patients; however, a minority continue to experience an extended response. This study examined depressive symptoms and potential clinical predictors of extended response to ketamine in subjects with mood disorders and found that a dissociative response during the infusion and a history of alcohol use in first-degree relatives predicted an extended response to ketamine.