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Can renin status predict the antihypertensive efficacy of eplerenone add-on therapy?

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Can renin status predict the antihypertensive efficacy of eplerenone add-on therapy?

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Since neither angiotensin-converting enzyme inhibitors (ACE-I) nor angiotensin II receptor blockers (ARB) can completely suppress aldosterone levels, there is a need for alternative/supplementary antihypertensive medications, such as the selective aldosterone blocker eplerenone (Inspra). This multicenter study measured the safety and efficacy of add-on eplerenone therapy to reduce blood pressure not controlled by ACE-I or ARB monotherapy. An ad hoc analysis evaluated whether active plasma renin or serum aldosterone levels could predict blood pressure response to eplerenone therapy. Patients (N = 341) with a diastolic blood pressure > 95 mmHg on a fixed dose of ACE-I or ARB were randomized to 8 weeks of double-blind treatment with eplerenone 50 mg qd or placebo. If blood pressure remained uncontrolled following 2, 4, or 6 weeks of treatment, the eplerenone dose was increased to 100 mg qd. In a combined cohort analysis of these patients, the placebo-adjusted change in systolic and diasto

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