Differences in Glucose Tolerance Between Fixed-Dose Antihypertensive Drug Combinations in People With Metabolic Syndrome

Abstract
OBJECTIVE —We sought to test the hypothesis that a fixed-dose combination of trandolapril/verapamil-SR (T/V) is superior to a fixed-dose combination of losartan/hydrochlorothiazide (L/H) on glucose tolerance in hypertensive patients with impaired glucose tolerance (IGT). RESEARCH DESIGN AND METHODS —A prospective, randomized, open-label, blinded–end points design was used to assess the effects of a T/V versus L/H combination in patients with IGT and hypertension ( n = 240) followed for up to 1 year. Doses were titrated to a systolic blood pressure 7% (2.6 vs. 9.6%, respectively; P = 0.05) occurred at study end. CONCLUSIONS —In patients with IGT, normal kidney function, and hypertension, the fixed-dose combination of T/V reduces the risk of new-onset diabetes compared with an L/H-based therapy.

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