High-dose clopidogrel, prasugrel or ticagrelor: trying to unravel a skein into a ball

Antiplatelet therapy is a mainstay in the management of coronary artery disease. Indeed, optimal and rapid inhibition of platelet function is a key therapeutic goal in patients with acute coronary syndromes and those undergoing percutaneous coronary intervention. Currently, dual antiplatelet treatment with aspirin and clopidogrel is the gold standard care in patients with acute coronary syndromes or receiving coronary stents without prohibitive bleeding risk. However, recent data show that the efficacy of clopidogrel is hampered by its slow and variable platelet inhibition, with ensuing increased risk of ischemic events, including death, myocardial infarction and stent thrombosis. Novel agents such as prasugrel and ticagrelor have been developed to clopidogrel limits and thus improve cardiovascular outcomes. This article presents a comprehensive overview of the benefits and limitations of current and shortly available antiplatelet agents, providing detailed arguments in favor and against prasugrel and ticagrelor.