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  • Title: Efficacy of buspirone in generalized anxiety disorder with coexisting mild depressive symptoms.
    Author: Sramek JJ, Tansman M, Suri A, Hornig-Rohan M, Amsterdam JD, Stahl SM, Weisler RH, Cutler NR.
    Journal: J Clin Psychiatry; 1996 Jul; 57(7):287-91. PubMed ID: 8666569.
    Abstract:
    BACKGROUND: This study was designed to evaluate the anxiolytic efficacy of buspirone in patients with a diagnosis of generalized anxiety disorder (GAD) with coexisting mild depressive symptoms. METHOD: Patients who participated in this multicenter study scored >/= 18 on the Hamilton Rating Scale for Anxiety (HAM-A) and between 12 and 17 on the Hamilton Rating Scale for Depression (HAM-D). Following a 7- to 10-day placebo lead-in phase, patients who continued to qualify were randomly assigned to receive either buspirone titrated from 15 to 45 mg/day (N = 80) or placebo (N = 82) for the next 6 weeks. 121 patients completed 6 weeks of treatment. The primary efficacy measure was the HAM-A, taken weekly during the study. RESULTS: Buspirone-treated patients averaged a 12.4-point reduction from their baseline total HAM-A score of 24.9, while their counterparts on placebo averaged a 9.5-point reduction from their mean baseline total HAM-A score of 25.6. This 2.9-point difference in HAM-A reductions between treatment groups was significantly different (p < .03). Buspirone patients decreased their HAM-D scores by an average 5.7 points from their mean baseline total HAM-D score of 15.8, while placebo patients decreased their HAM-D scores by an average 3.5 points from their mean baseline score of 16.3 (p < .05). Overall, the incidence of adverse events was similar for both treatment groups, but buspirone-treated patients reported significantly more nausea, dizziness, somnolence, and sweating than placebo patients. CONCLUSION: Buspirone is superior to placebo in improving anxiety and depressive symptoms in GAD patients who have coexisting depressive symptoms.
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