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Author: Admin | 2025-04-28
3 in vivorat bone marrow cytogenetic studies. There were no effects on male and female fertility when rats were administered oral doses of bupropion up to 300 mg/kg/day (approximately 7 times the MRHD on a mg/m 2basis) to females prior to mating and either through Day 13 of gestation or through lactation, and to males for 60 days prior to and through mating. However, doses of 200 mg/kg/day (approximately 5 times the MRHD on a mg/m 2basis) or greater, caused transient ataxia or behavioral changes in adult female rats. There were also no adverse effects on fertility, reproduction, or growth and development of male or female offspring. 14. Clinical Studies The efficacy of the immediate-release formulation of bupropion in the treatment of major depressive disorder was established in two 4-week, placebo-controlled trials in adult inpatients with MDD (Trials 1 and 2 in Table 6) and in one 6-week, placebo-controlled trial in adult outpatients with MDD (Trial 3 in Table 6). In the first trial, the dose range of bupropion was 300 mg to 600 mg/day administered in divided doses; 78% of subjects were treated with doses of 300 mg to 450 mg/day. This trial demonstrated the effectiveness of the immediate-release formulation of bupropion by the Hamilton Depression Rating Scale (HDRS) total score, the HDRS depressed mood item (Item 1), and the Clinical Global Impressions severity score (CGI-S). The second trial included 2 doses of the immediate-release formulation of bupropion (300 and 450 mg/day) and placebo. This trial demonstrated the effectiveness of the immediate-release formulation of bupropion, but only at the 450 mg/day dose. The efficacy results were significant for the HDRS total score and the CGI-S score, but not for HDRS Item 1. In the third trial, outpatients were treated with 300 mg/day of the immediate-release formulation of bupropion. This trial demonstrated the efficacy of the immediate-release formulation of bupropion as measured by the HDRS total score, the HDRS Item 1, the Montgomery-Asberg Depression Rating Scale (MADRS), the CGI-S score, and the CGI-Improvement Scale (CGI-I) score. Table 6. Efficacy of Immediate-Release Bupropion for the Treatment of Major Depressive Disorder Trial
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