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An eight-week, multicenter, randomized, double-blind study to evaluate the efficacy and tolerability of fixed-dose amlodipine/benazepril combination in comparison with amlodipine as first-line therapy in chinese patients with mild to moderate hypertension.

Author(s): Ueng KC, Lin LC, Voon WC, Lin MC, Liu YB, Su HM, Chang PY, Lin TH, Chen WL, Wu CC, Lai WT, Lin CS

Affiliation(s): Division of Cardiology and Cardiovascular Research Group, Institute of Medicine, Chung-Shan Medical University Hospital, Taiwan. ueng.kc@msa.hinet.net

Publication date & source: 2008-06, Blood Press Suppl., 1:24-31.

Publication type: Comparative Study; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

AIMS: This study sought to compare the antihypertensive efficacy and tolerability of a fixed-dose combination with amlodipine/benazepril with that of amlodipine monotherapy in Chinese hypertensive subjects. RESULTS: This multicenter, double-blind, 8-week study randomized 111 patients to fixed-dose amlodipine besylate/benazepril HCl (2.5/5 mg/day titrated to 5/10 mg/day as needed at week 4 to reach goal blood pressure (BP) <140/90 mmHg) or amlodipine besylate monotherapy (5 mg/day titrated to 10 mg/day as needed). At week 8, patients randomized to combination therapy compared with monotherapy had a comparable BP control rate (56.0% vs. 46.2%; p = 0.32). Fixed-dose combination resulted in similar reductions in sitting systolic (SBP) and diastolic BP (DBP) compared with monotherapy (SBP: -19.3 +/- 12.5 vs. -20.9 +/- 13.3 mmHg; DBP: -9.2 +/- 10.4 vs. -11.3 +/-9.3 mmHg; both p=NS). Safety profiles did not differ between groups, but cough was more common in the combination group (11.0% vs. 0%; p = 0.013). CONCLUSIONS: In this group of patients, comparable antihypertensive effects were seen with the fixed-dose combination therapy, compared with amlodipine monotherapy. Both treatments appeared well tolerated in the studied population, but cough was more common in the fixed-dose combination group.

Page last updated: 2008-11-03

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