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Articles

A Double-Blind Evaluation of the Safety and Efficacy of Abecarnil, Alprazolam, and Placebo in Outpatients With Generalized Anxiety Disorder

Article Abstract

In a placebo-controlled, multicenter study, 180 male and female outpatients, ages 18-65, withDSM-III-R generalized anxiety disorder, were treated with abecarnil (a partial benzodiazepine agonist),alprazolam, or placebo for 4 weeks. This was followed by a rapid (1-week) taper, during whichpatients were assessed for any taper-related symptoms. All patients were identified via a structuredclinical interview for DSM-III-R and randomly assigned to one of the three treatment groups. Morethan 70% of each treatment group completed the study. In the acute-treatment phase, both abecarniland alprazolam showed evidence for efficacy that was significantly better than that of placebo. Bothactive agents were tolerated well. After the swift taper, a significantly greater number of taper-relatedsymptoms occurred in the alprazolam-treated group than in the abecarnil-treated group, which wasnot different than in the placebo-treated group. Additionally, less residual improvement followed thetaper in the alprazolam-treated and the placebo-treated groups. These data indicate that the partialbenzodiazepine agonist abecarnil may be useful as a safe, effective, short-term treatment for anxiety.Theoretical and practical implications of these findings are discussed.


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Volume: 58

Quick Links: Anxiety , Anxiolytics