Summary
The P2Y12 receptor has proven to be a key target in the prevention of complications associated
with atherosclerotic vascular disease especially in the context of acute coronary
syndrome and percutaneous coronary intervention in addition to aspirin. Three generationsof
thienopyridines, ticlopidine, clopidogrel, and prasugrel have proven efficacy in the
prevention of ischemic vascular events but with increased bleeding. The concept of
individualized tailored therapy has recently emerged with the discovery of the diminished
effect of some thienopyridine among carriers of the loss-of-function cytochrome (CYP)
P4502C19*2 variant. Non-thienopyridine P2Y12 antagonists have also recently demonstrated that these benefits are not limited to
one class of agents or may be generalizable to reversible antagonists of this receptor.
Future rational use of these agents will require attention to disease and patient
features to strike the optimal balance of benefit to risk.
Keywords
P2Y
12 receptors - thienopyridines - platelet - thrombosis - acute coronary syndrome