Randomized, double-blind, crossover comparison of amlodipine and valsartan in african-americans with hypertension using 24-hour ambulatory blood pressure monitoring.

Study Objective: To compare the efficacy of amlodipine and valsartan in African-American patients with hypertension using ambulatory blood pressure monitoring (ABPM).

Design: Prospective, randomized, double-blind, crossover comparison study.

Setting: University-affiliated cardiac center clinic.