Azelnidipine and Amlodipine Anti-Coronary Atherosclerosis Trial in Hypertensive Patients Undergoing Coronary Intervention by Serial Volumetric Intravascular Ultrasound Analysis in Juntendo University (ALPS-J)

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Background: A previous study reported that amlodipine retarded coronary plaque progression in patients with coronary artery disease. The goal of this multicenter study was to determine which calcium-channel blockers (CCBs) other than amlodipine attenuated the progression of plaque volume (PV) accessed by intravascular ultrasound (IVUS). Methods and Results: ALPS-J was a prospective, randomized open-label study conducted at 5 centers. Patients who had hypertension and were scheduled for coronary intervention were enrolled. Subjects were randomly assigned to receive 16mg/day of azelnidipine or 5mg/day of amlodipine administered for 48 weeks. The primary endpoint was the percent change in coronary PV measured by IVUS. Between 2007 and 2009, 199 patients were enrolled; 115 had evaluable IVUS images at both baseline and after 48 weeks of treatment. Blood pressure significantly reduced to 128/68mmHg at follow-up. The lipid profiles in the 2 groups were comparable (low-density lipoprotein cholesterol: 97mg/dl). The %change in PV showed a significant regression of 4.67 and 4.85% in the azelnidipine and amlodipine groups, respectively. The upper limit of the 95% confidence interval of the mean difference in %change PV between the 2 groups (0.18%, 95% confidence interval 4.62 to 4.98%) did not exceed the pre-defined non-inferiority margin of 6.525%. Conclusions: ALPS-J demonstrated that azelnidipine was not inferior to amlodipine for primary efficacy. In addition to standard medical therapy, dihydropyridine CCBs will retard PV progression in hypertensive patients. (Circ J 2011; 75: 1071-1079)
2011-04-25

Azelnidipine and Amlodipine Anti-Coronary Atherosclerosis Trial in Hypertensive Patients Undergoing Coronary Intervention by Serial Volumetric Intravascular Ultrasound Analysis in Juntendo University (ALPS-J)

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