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Critical appraisal of amlodipine and olmesartan medoxomil fixed-dose combination in achieving blood pressure goals.

ABSTRACT: Hypertension remains a significant health burden in the United States, with almost one in three adults affected, and is an independent risk factor for cardiovascular and renal disease. The goal of antihypertensive treatment is to reduce cardiovascular and renal morbidity and mortality by reducing blood pressure (BP). Guidelines recommend a target BP of <140/90 mmHg, with a more stringent goal of <130/80 mmHg for patients with diabetes and chronic renal disease. However, BP goal attainment rates remain low and most patients require therapy with two or more antihypertensive agents. Combination antihypertensive therapy usually employs agents from different classes, thus benefitting from complementary mechanisms of action to achieve greater BP control with fewer side effects. Patient adherence to therapy is enhanced by formulating treatments as fixed-dose (single-pill) combinations. One example is the combination of amlodipine, a dihydropyridine calcium channel blocker (CCB), with olmesartan medoxomil, an angiotensin receptor blocker (ARB). Here, the rationale for the use of CCB/ARB combination therapy is discussed, as well as the pharmacology and tolerability of the amlodipine/olmesartan medoxomil combination and its efficacy in terms of achieving BP goal in patients with hypertension. Advantages of its use from the patient's perspective are also discussed.

SUBMITTER: Basile J

PROVIDER: S-EPMC3172072 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Critical appraisal of amlodipine and olmesartan medoxomil fixed-dose combination in achieving blood pressure goals.

Basile Jan J

Integrated blood pressure control 20100621

Hypertension remains a significant health burden in the United States, with almost one in three adults affected, and is an independent risk factor for cardiovascular and renal disease. The goal of antihypertensive treatment is to reduce cardiovascular and renal morbidity and mortality by reducing blood pressure (BP). Guidelines recommend a target BP of <140/90 mmHg, with a more stringent goal of <130/80 mmHg for patients with diabetes and chronic renal disease. However, BP goal attainment rates ...[more]

PMID: 21949625

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Project description:IntroductionCentral blood pressure (BP), an important measure of cardiovascular risk, has been shown to be effectively reduced by calcium channel blockade with amlodipine (AML) plus renin-angiotensin system blockade by the angiotensin-converting enzyme inhibitor, perindopril (PER). The aim of the SEVITENSION study was to compare the central effects of PER/AML against renin-angiotensin system blockade with the angiotensin II receptor blocker olmesartan (OLM) plus AML.MethodsIn this multicenter, parallel group, non-inferiority study, patients received AML 10 mg during a 2- to 4-week run-in before randomization to 24 weeks of double-blind treatment with the fixed-dose combination of OLM/AML 40/10 mg or PER/AML 8/10 mg. Hydrochlorothiazide was added at Weeks 4, 8, or 12 in patients with inadequate BP control. The primary efficacy variable was the absolute change in central systolic BP (CSBP) from baseline to the final examination, measured by radial artery applanation tonometry and analyzed by parametric analysis of covariance. Secondary variables included 24-h ambulatory and seated BP measurements as well as BP normalization.ResultsOf 600 patients enrolled, 486 were randomized (244 to OLM/AML 40/10 mg, 242 to PER/AML 8/10 mg). The reduction in CSBP was larger with OLM/AML (14.5 ± 0.83 mmHg) than with PER/AML (10.4 ± 0.84 mmHg). The between-group difference was -4.2 ± 1.18 mmHg with 95% confidence intervals (-6.48 to -1.83 mmHg) within the predefined non-inferiority margin (2 mmHg). An integrated superiority test confirmed that OLM/AML was superior to PER/AML (p < 0.0001) in reducing CSBP. The superiority of OLM/AML over PER/AML was also established for the majority of secondary efficacy variables; at the final examination, 75.6% of OLM/AML recipients achieved BP normalization (mean seated systolic BP/diastolic BP <140/90 mmHg) compared with 57.5% of PER/AML recipients (p < 0.0001).ConclusionThe combination of OLM/AML was superior to PER/AML in reducing CSBP and other efficacy measures, including a significantly higher rate of BP normalization.

Project description:This is a prespecified subgroup analysis in Hispanic and non-Hispanic patients of a study that evaluated blood pressure (BP) control with fixed-dose amlodipine/olmesartan medoxomil (AML/OM)-based therapy in patients whose condition was uncontrolled on prior monotherapy.In this prospective, open-label, dose-titration study, patients with uncontrolled BP after at least 1 month of antihypertensive monotherapy were switched to fixed-dose AML/OM 5/20 mg. Patients were uptitrated to AML/OM 5/40 and 10/40 mg, with uptitration to AML/OM + hydrochlorothiazide 10/40 + 12.5 mg and 10/40 + 25 mg to achieve target BP. The primary efficacy endpoint was the cumulative proportion of patients achieving seated cuff systolic BP (SeSBP) less than 140 mmHg (<130 mmHg in patients with diabetes mellitus) at 12 weeks. Secondary endpoints included SeBP goal rates, ambulatory BP (ABP) target rates, and mean change from baseline in seated cuff BP (SeBP) and ABP at weeks 12 and 20.Mean baseline BP was similar in Hispanics (153.6/92.8 mmHg; n = 105) and non-Hispanics (153.7/91.8 mmHg; n = 894). At 12 weeks, 72.0% of Hispanics and 76.3% of non-Hispanics achieved the primary endpoint. At week 12, goal rates for cumulative SeBP (<140/90 mmHg or <130/80 mmHg in patients with diabetes) were 69.0% and 71.5% in Hispanic and non-Hispanic patients, respectively. Mean change in SeBP in Hispanics ranged from -15.3/-7.3 mmHg for AML/OM 5/20 mg to -23.2/-13.8 mmHg for AML/OM 10/40 mg + hydrochlorothiazide 25 mg, and in non-Hispanics from -14.1/-7.8 mmHg to -25.4/-13.7 mmHg (all p < 0.0001 versus baseline). A majority of patients achieved mean 24 h, daytime, and nighttime ABP targets in both subgroups. Greater proportions of Hispanics achieved ABP targets versus non-Hispanics at week 12; however, this trend was reversed at week 20. Treatment was well tolerated.Switching to a fixed-dose combination of AML/OM ± hydrochlorothiazide provided significant BP lowering and effectively controlled BP in a large proportion of Hispanic and non-Hispanic patients with hypertension uncontrolled on previous monotherapy.

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Critical appraisal of amlodipine and olmesartan medoxomil fixed-dose combination in achieving blood pressure goals.

Publications

Critical appraisal of amlodipine and olmesartan medoxomil fixed-dose combination in achieving blood pressure goals.

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