Olmesartan-based monotherapy vs combination therapy in hypertension: A meta-analysis based on age and chronic kidney disease status.

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Antihypertensive monotherapy is often insufficient to control blood pressure (BP). Several recent guidelines advocate for initial combination drug therapy in many patients. This meta-analysis of seven randomized, double-blind studies (N = 5888) evaluated 8 weeks of olmesartan medoxomil (OM)-based single-pill dual-combination therapy (OM+amlodipine/azelnidipine or hydrochlorothiazide) vs OM monotherapy in adults with hypertension. BP-lowering efficacy, goal achievement, and adverse events were assessed in the full cohort and subgroups (elderly/nonelderly and patients with and without chronic kidney disease). In the full cohort at week 8, for dual therapy vs monotherapy, seated BP was lower (137.5/86.1 mm Hg vs 144.4/89.9 mm Hg), and the mean change from baseline in BP and BP goal achievement (<140/90 mm Hg) were greater (-22.7/-15.0 mm Hg vs -16.0/-11.3 mm Hg and 51.2% vs 34.7%, respectively). Adverse events were similar between groups. BP-lowering efficacy among subgroups mirrored the findings in the full cohort whereby changes were significantly greater following OM dual-combination therapy vs OM monotherapy.

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