CLopidogrel Trial in Patients With Elective Percutaneous Coronary Intervention for Stable ANgina and Old Myocardial Infarction (CLEAN) : Safety and Efficacy of Clopidogrel Compared to Ticlopidine in Japanese Patients
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概要
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Clopidogrel in combination with aspirin has been widely used in patients who have undergone coronary stent implantation. However, the benefit to Japanese patients with stable angina (SA) or old myocardial infarction (OMI) undergoing percutaneous coronary intervention (PCI) still remains unclear.The aim of this multicenter, randomized, double-blind, clinical study was to evaluate the safety of a clopidogrel 300 mg loading dose followed by a 75 mg maintenance dose compared to ticlopidine 100 mg twice daily in patients with SA or OMI undergoing PCI who were on aspirin (81 to 100 mg once daily). The primary endpoint was the composite of safety events comprising clinically significant bleeding, blood disorders, elevated liver function values, and study drug discontinuation up to week 12. The key secondary endpoints were major adverse cardiac events (MACE), major adverse cardiac and cerebrovascular events (MACCE), and bleeding events. A total of 1003 patients were randomly allocated to receive either clopidogrel or ticlopidine and 931 patients underwent PCI. The cumulative incidence of the composite safety endpoint in the clopidogrel group was statistically lower than that of ticlopidine (P < 0.0001, hazard ratio; 0.259; 95%CI; 0.187 to 0.359). There were no statistically significant differences between treatments with respect to MACE at week 12 (P = 0.7899) nor to the bleeding events (P = 0.5292, stratified log-rank test).Clopidogrel was found to have a better benefit/risk profile than ticlopidine in Japanese patients with SA or OMI undergoing PCI.
著者
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Ueno Takafumi
Division Of Cardio-vascular Medicine Department Of Internal Medicine Kurume University School Of Med
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Igarashi Keiichi
Division Of Cardiology Hokkaido Central Hospital For Social Insurance
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Isshiki Takaaki
Department Of Cardiology
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Ikari Yuji
Department Of Cardiology Tokai Univeristy
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Nakamura Masato
Division Of Cardiology Third Department Of Medicine Toho University School Of Medicine
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Yokoi Hiroyoshi
Department Of Cardiac Rehabilitation Kokura Memorial Hospital
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KIMURA Takeshi
Department of Applied Chemistry and Molecular Science, Faculty of Engineering, Iwate University
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Isshiki Takaaki
Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University
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Ueno Takafumi
Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine
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Kobayashi Masahiko
Therapeutic Strategic Unit Asia-Pacific R, Research and Development, Sanofi-Aventis KK
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