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  • Title: Randomized double-blind placebo-controlled comparison of nicardipine and nifedipine in patients with chronic stable angina pectoris.
    Author: Bowles MJ, Khurmi NS, O'Hara MJ, Raftery EB.
    Journal: Chest; 1986 Feb; 89(2):260-5. PubMed ID: 3510823.
    Abstract:
    Forty-one patients were studied in a randomized double-blind placebo-controlled crossover trial to compare the antianginal actions of nicardipine 30 mg thrice daily and nifedipine 10 mg thrice daily. Efficacy was assessed using objective criteria from computer-assisted multistage graded exercise testing, performed after a two-week placebo run-in period and at the end of each four-week active treatment period. Thirty-seven patients completed both legs of the crossover trial. The mean (+/- standard error of the mean) baseline exercise time to development of angina was 6.7 +/- 0.4 min and this increased to 9.5 +/- 0.6 min on nicardipine (p less than 0.001) and 9.5 +/- 0.5 min on nifedipine (p less than 0.001 vs baseline; NS vs nicardipine). Both drugs significantly prolonged the time to the development of 1mm ST segment depression. The baseline resting heart rate of 83 +/- 2 beats/min increased to 87 +/- 3 beats/min during nicardipine (p less than 0.05) and remained unaltered at 83 +/- 2 beats/min during nifedipine therapy (p = NS vs baseline and p less than 0.02 vs nicardipine). Similarly, both drugs increased significantly the maximal heart rate at peak exercise. One patient was lost to follow-up during the placebo run-in period and four patients (two each on nicardipine and nifedipine) were withdrawn due to adverse effects. Our results indicate that nicardipine is comparable in efficacy to nifedipine and has a similar adverse effect profile and can also be considered a useful therapeutic agent for the treatment of chronic stable angina pectoris.
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