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Safety, tolerability, and efficacy of a fixed-dose combination of olmesartan 40 mg and hydrochlorothiazide 12.5/25 mg in daily practice

Authors Bramlage P, Zemmrich C, Ketelhut R, Wolf W, Fronk E, Schmieder RE

Received 28 May 2013

Accepted for publication 27 June 2013

Published 26 August 2013 Volume 2013:9 Pages 475—483

DOI https://doi.org/10.2147/VHRM.S49118

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3


Peter Bramlage,1 Claudia Zemmrich,1 Reinhard Ketelhut,2 Wolf-Peter Wolf,3 Eva-Maria Fronk,4 Roland E Schmieder5

1Institut für Pharmakologie und Präventive Medizin, Mahlow, Germany; 2Institut für Sportmedizin, Universitätsklinikum Charité, Humboldt Universität zu Berlin, Berlin, Germany; 3Daiichi Sankyo Deutschland GmbH, Munich, Germany; 4Daiichi Sankyo Europe GmbH, Munich, Germany; 5Universitätsklinikum Erlangen, Klinik für Nephrologie und Hypertensiologie, Erlangen, Germany

Background: The safety and efficacy of olmesartan 40 mg and hydrochlorothiazide (HCTZ) as a fixed-dose combination has been investigated in clinical trials leading to its approval. The aims of the present study were to confirm these data in an unselected patient population in daily practice and to determine the impact of physical activity on blood pressure control.
Methods: In a multicenter, noninterventional study, 3,333 patients with either insufficient blood pressure control on olmesartan 40 mg alone or on a fixed/free combination of olmesartan 40 mg and HCTZ 12.5/25 mg were primarily assessed for safety and tolerability of the fixed-dose combination of olmesartan 40 mg and HCTZ 12.5/25 mg at 24 ± 2 weeks. Secondary objectives were blood pressure reduction, treatment compliance, and impact of physical activity as measured by the sum of weekly energy costs.
Results: The mean patient age was 63.2 ± 11.46 years, mean baseline blood pressure was 159.6 ± 15.28/93.5 ± 9.52 mmHg, and 70.9% had at least one additional cardiovascular risk factor. Adverse drug reactions were rare (n = 19), and no serious adverse drug reactions occurred. Compliance with drug therapy was at least sufficient in more than 99% of patients at the end of the study. Blood pressure at the last available visit was reduced by 26.1 ± 15.5/13.0 ± 10.1 mmHg versus baseline (P < 0.0001), but had reduced effectiveness in patients ≥75 years with diabetes or impaired renal function. In 69% of patients, blood pressure was normalized (<140/90 mmHg). No noteworthy differences in baseline characteristics or baseline blood pressure were found between patients with an activity level (sum of weekly energy costs) above or below the median of 9,460.6. A higher versus lower physical activity score had no impact on blood pressure reduction.
Conclusion: Our data confirm randomized trial data concerning safe and efficient blood pressure reduction using a fixed-dose combination of olmesartan 40 mg and HCTZ 12.5/25 mg in a large, unselected patient population, independent of physical activity level.

Keywords: blood pressure, antihypertensive agents, administration, dosage, physical activity

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