Clinical therapeutics · 2003
The role of clopidogrel in the management of acute coronary syndromes.
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Wodlinger Anna M, Pieper John A
Аннотация
BACKGROUND: Despite significant advances in the management of coronary heart disease, myocardial infarction (MI) is still associated with a mortality rate of 45%. Acetylsalicylic acid (ASA) has been the oral antiplatelet drug of choice until recently. Thienopyridines such as clopidogrel have been shown to provide significant benefits in the management of acute coronary syndromes (ACS), either as an alternative to or in combination with ASA therapy.
OBJECTIVE: The purpose of this article was to review the available scientific literature evaluating the use of clopidogrel in the management of ACS.
METHODS: Relevant published data were identified through searches of the English-language literature indexed on MEDLINE and International Pharmaceutical Abstracts through April 2003. Search terms included thienopyridines, platelet aggregation inhibitors, clopidogrel, ticlopidine, acute coronary syndrome, myocardial infarction, and percutaneous coronary intervention. Pertinent conference abstracts were also included.
RESULTS: The results of 3 large clinical trials-Clopidogrel in Unstable Angina to Prevent Recurrent Events (CURE), Effect of Pretreatment with Clopidogrel and Aspirin Followed by Long-Term Therapy in Patients Undergoing Percutaneous Coronary Intervention (PCI-CURE), and Clopidogrel for the Reduction of Events During Observation (CREDO)-support prolonged use of clopidogrel (up to 12 months) in combination with ASA in patients with non-ST-segment elevation MI and patients undergoing a percutaneous coronary intervention (PCI). A significant increase in bleeding events was observed in the group that received clopidogrel plus ASA compared with ASA alone in the CURE (major bleeding, P = 0.001; minor bleeding, P < 0.001) and PCI-CURE (minor bleeding, P = 0.03) trials. Use of the combination of clopidogrel and ASA with other antiplatelet and/or anticoagulant agents has not been studied extensively.
CONCLUSIONS: Use of the combination of clopidogrel and ASA for up to 9 months is recommended for the medical management of non-ST-segment elevation MI and after a PCI. The increased risk of bleeding must be taken into account, and use of this combination with other agents that affect bleeding risk should be considered carefully.
OBJECTIVE: The purpose of this article was to review the available scientific literature evaluating the use of clopidogrel in the management of ACS.
METHODS: Relevant published data were identified through searches of the English-language literature indexed on MEDLINE and International Pharmaceutical Abstracts through April 2003. Search terms included thienopyridines, platelet aggregation inhibitors, clopidogrel, ticlopidine, acute coronary syndrome, myocardial infarction, and percutaneous coronary intervention. Pertinent conference abstracts were also included.
RESULTS: The results of 3 large clinical trials-Clopidogrel in Unstable Angina to Prevent Recurrent Events (CURE), Effect of Pretreatment with Clopidogrel and Aspirin Followed by Long-Term Therapy in Patients Undergoing Percutaneous Coronary Intervention (PCI-CURE), and Clopidogrel for the Reduction of Events During Observation (CREDO)-support prolonged use of clopidogrel (up to 12 months) in combination with ASA in patients with non-ST-segment elevation MI and patients undergoing a percutaneous coronary intervention (PCI). A significant increase in bleeding events was observed in the group that received clopidogrel plus ASA compared with ASA alone in the CURE (major bleeding, P = 0.001; minor bleeding, P < 0.001) and PCI-CURE (minor bleeding, P = 0.03) trials. Use of the combination of clopidogrel and ASA with other antiplatelet and/or anticoagulant agents has not been studied extensively.
CONCLUSIONS: Use of the combination of clopidogrel and ASA for up to 9 months is recommended for the medical management of non-ST-segment elevation MI and after a PCI. The increased risk of bleeding must be taken into account, and use of this combination with other agents that affect bleeding risk should be considered carefully.