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  • Title: Double-blind comparison of bupropion and fluoxetine in depressed outpatients.
    Author: Feighner JP, Gardner EA, Johnston JA, Batey SR, Khayrallah MA, Ascher JA, Lineberry CG.
    Journal: J Clin Psychiatry; 1991 Aug; 52(8):329-35. PubMed ID: 1907963.
    Abstract:
    BACKGROUND: This study was undertaken to compare the efficacy and safety of bupropion and fluoxetine. METHOD: Moderately to severely depressed outpatients who fulfilled the DSM-III-R criteria for nonpsychotic major depressive disorder and had a score of 20 or more on the Hamilton Rating Scale for Depression (21 item) participated in this two-center study. Following a 1-week placebo phase, patients were randomly assigned to receive either bupropion or fluoxetine for 6 weeks of double-blind treatment. Weekly efficacy assessments included Hamilton Rating Scale for Depression, Hamilton Rating Scale for Anxiety, Clinical Global Impressions-Severity, and Clinical Global Impressions-Improvement. Vital signs and adverse experiences were also assessed weekly. RESULTS: A total of 61 patients were randomly assigned to receive bupropion (225-450 mg/day) and 62 were randomly assigned to receive fluoxetine (20-80 mg/day). The mean daily dose at the end of the study was 382 mg/day for the bupropion treatment group and 38 mg/day for the fluoxetine treatment group. There were no statistically significant differences between treatments on any of the efficacy variables. On the basis of a 50% or greater reduction in the HAM-D scores, 63% (N = 37) of the bupropion-treated and 58% (N = 35) of the fluoxetine-treated patients were categorized as responders, and on the basis of CGI scores, 68% (N = 40) of the bupropion-treated and 58% (N = 35) of the fluoxetine-treated patients were rated as much or very much improved. HAM-A scores decreased by 59% for both treatment groups. The incidence of treatment-emergent adverse events was low with no statistically significant differences between treatments. Twenty-six percent (N = 16) of the bupropion-treated and 29% (N = 18) of the fluoxetine-treated patients prematurely discontinued treatment. CONCLUSION: Both bupropion and fluoxetine demonstrated similar efficacy in relieving depression and accompanying symptoms of anxiety, and both exhibited a similar, favorable safety profile.
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