• Carrie S Oliphant, J Bradford Doby, Crystal L Blade, Kanak Das, Debabrata Mukherjee, and Pranab Das.
• Department of Pharmacy, Methodist University Hospital, University of Tennessee College of Pharmacy, Memphis, TN 38104, USA.
• Curr Vasc Pharmacol. 2010 Jan 1; 8 (1): 93-101.

AbstractThe use of oral antiplatelet therapy in reducing vascular events has been extensively studied. Currently available oral antiplatelet agents include aspirin and the thienopyridine P2Y12 receptor antagonists. These classes are combined frequently in the setting of acute coronary syndrome and percutaneous coronary intervention (PCI). Resistance to either or both of these agents is a major concern, as antiplatelet resistance has been linked to an increase in thrombotic events and worse clinical outcomes. As a result, there is a need for newer, more effective antiplatelet agents to address the limitations of currently available therapy. Prasugrel, a third generation thienopyridine, has been approved by both the FDA and European Commission. Two additional P2Y12 agents, ticagrelor and cangrelor are in advanced stages of development. The possible advantages of prasugrel over clopidogrel include a faster onset of action, reduced inter-patient variability and more potent platelet inhibition. Ticagrelor is an oral reversible P2Y12 antagonist with greater platelet inhibition compared with clopidogrel. Cangrelor is being developed as an intravenous P2Y12 antagonist with a very fast onset and offset, which may offer advantages particularly in the setting of coronary intervention. These emerging antiplatelet agents may offer advantages such as faster onset of action, greater potency and reversibility of platelet inhibition. This article summarizes the available clinical data on the upcoming P2Y12 antiplatelet agents in the treatment of coronary artery disease.

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