Deramciclane in the treatment of generalized anxiety disorder: a placebo-controlled, double-blind, dose-finding study.
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Deramciclane, a camphor derivative, is a novel anxiolytic agent with a unique mechanism of action. It acts as a potent and specific antagonist at serotonin 5-HT2A/2C receptors, and exhibits anxiolytic efficacy in animal models. The aim of this double-blind, placebo-controlled, parallel-group study was to evaluate the efficacy, safety, and tolerability of a range of doses of deramciclane in patients with generalized anxiety disorder (GAD). Adult patients with a diagnosis of GAD (DSM-IV) and a Hamilton Anxiety Rating Scale (HAM-A) total score >or=18; a score >or=2 for the HAM-A items 'Anxious Mood' and 'Tension'; a score >or=4 on the Clinical Global Impression of Severity of Illness (CGI-S) Scale; and a score