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Comparative efficacy and safety of amlodipine/benazepril combination therapy and amlodipine monotherapy in severe hypertension.

Author(s): Izzo JL Jr, Purkayastha D, Hall D, Hilkert RJ

Affiliation(s): Department of Medicine, State University of New York at Buffalo, 462 Grider St, Buffalo, NY 14215, USA. jizzo@buffalo.edu

Publication date & source: 2010-06, J Hum Hypertens., 24(6):403-9. Epub 2009 Nov 5.

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

This multicentre, double-blind, trial in subjects with severe hypertension compared the efficacy and tolerability of two parallel drug regimens: A/B (amlodipine/benazepril: 5/20 or 10/40 mg daily, if necessary) with A (amlodipine: 5 or 10 mg daily, if necessary). The principal dependent variable was the proportion of patients achieving goal blood pressures (BP<140/90 mm Hg or BP<130/80 mm Hg in diabetes or chronic kidney disease) in the two groups within 6 weeks. In the 259 randomized subjects, BP control rates were higher with A/B at 2, 4 and 6 weeks (10.5, 22, and 33.6%, respectively) compared with A (5.7, 16, and 25.8 %, respectively). Corresponding trended BP reductions from baseline at 2, 4 and 6 weeks were about 5 mm Hg greater with A/B (-21+/-16, -26+/-17 and -30+/-17 mm Hg, respectively, compared with A (-16+/-17, -23+/-18 and 25+/-19 mm Hg, respectively, P<0.01). Both regimens were well tolerated; incidences of peripheral oedema at weeks 4 and 6 were similar (A/B: 13 and 20% versus A: 20 and 22%, P=not significant). We conclude that titration of amlodipine and benazepril in single-pill combinations is more effective than titration of amlodipine alone for rapid BP control in patients with severe hypertension.

Page last updated: 2010-10-05

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