Comparison of the pharmacodynamic effects of ranolazine versus amlodipine on platelet reactivity in stable patients with coronary artery disease treated with dual antiplatelet therapy : The ROMAN (RanOlazine vs. aMlodipine on platelet reactivity in stable patients with CAD treated with dual ANtiplatelet therapy) study

Journal of Thrombosis and Thrombolysis
Francesco PellicciaDominick J Angiolillo

Abstract

Amlodipine, commonly used for relief of ischemic symptoms in coronary artery disease (CAD), may affect clopidogrel-induced antiplatelet effects. It remains unknown if ranolazine, an antianginal drug that constitutes a pharmacologic alternative to calcium channel blockade, interferes with clopidogrel-induced antiplatelet effects. The aim of the ROMAN study was to compare the pharmacodynamic effects of ranolazine versus amlodipine on platelet reactivity in clopidogrel treated patients with CAD. A prospective, randomized, cross-over, open-label study conducted in a total of 210 CAD patients on aspirin (100 mg/q.d.) and clopidogrel (75 mg/q.d.) 1 month following percutaneous coronary intervention. Patients were randomly assigned to amlodipine (10 mg p.d., n = 105) or ranolazine (750 mg b.i.d., n = 105) for 15 days, and after a 1-week wash-out period, crossed-over treatment for 15 days. P2Y12 reaction units (PRU) were assessed at baseline and after each treatment sequence. High on-treatment platelet reactivity (HPR) was defined as a PRU > 208. Amlodipine was associated with higher PRU than ranolazine (182 ± 75 vs. 167 ± 64, p = 0.028). As compared with baseline, PRU increased significantly after treatment with amlodipine (p = 0.018)...Continue Reading

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Citations

Sep 6, 2015·European Journal of Pharmacology·Francesco PellicciaDominick J Angiolillo

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