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  • Title: Double blind, controlled study of the efficacy and safety of alpidem in the treatment of anxiety in schizophrenic in-patients.
    Author: Minervini MG, Priore P, Farolfi A, Cesana B, Morselli PL.
    Journal: Pharmacopsychiatry; 1990 Mar; 23(2):102-6. PubMed ID: 1971117.
    Abstract:
    In this double-blind study, alpidem, a new imidazo-pyridine anxiolytic drug, was compared with placebo in order to test its efficacy and safety in chronic schizophrenic in-patients suffering from anxiety not directly related to the schizophrenic process. Sixty-six patients aged from 18 to 65 entered the trial. They also scored at least 18 on the Hamilton Rating Scale for Anxiety (HRSA) after a seven-day placebo run-in. Improvement in symptoms was evaluated by means of the HRSA, the Brief Psychiatric Rating Scale (BPRS), a Visual Analogue Scale (VAS), and the Clinical Global Impression score (CGI). Thirty-three patients were randomly allocated to alpidem and 33 to placebo. Alpidem was significantly more effective (P less than 0.0001) than placebo in improving HRSA scores (total score and factorial scores for somatic and psychic anxiety), BPRS, and VAS. Considering the results of CGI at 21 day, more patients were moderately to markedly improved on alpidem (30/33) than on placebo (2/33) (P less than 0.0001). The efficacy index, according to CGI, was significantly better (P less than 0.001 at least) for alpidem than for placebo. Side-effects were negligible in both groups.
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