Advances in the monitoring of anti-P2Y12 therapy

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18 Citations (Scopus)


Although there are many new and effective anti-P2Y(12) drugs available, clopidogrel in its original or generic forms will probably remain the most widely used and cheaper option. As clopidogrel is a pro-drug, there is marked heterogeneity in drug responsiveness between individuals and lack of responsiveness is associated with poorer clinical outcomes. Various platelet function and genetic tests are now available for potentially measuring whether clopidogrel effectively inhibits platelet function. Monitoring of P2Y(12) inhibition and/or identification of loss of function cytochrome P-450 genotypes could, therefore, offer the potential of tailoring therapy by identifying poor responders to clopidogrel and optimizing the levels of platelet inhibition using, for example, alternative drugs such as prasugrel or ticagrelor. The question remains whether any of these tests have prognostic utility with a defined therapeutic window to reliably identify hypo or hyper-responsive patients who may have an increased risk of thrombosis or bleeding, respectively? Once such patients are identified, can the tests then be subsequently used to demonstrate a change or improvement in platelet reactivity by using alternative therapies and equate this with improved clinical outcome? In this review, we describe an overview of the current platelet and genetic tests available and discuss whether these tests will ever become used routinely.

Original languageEnglish
Pages (from-to)510-25
Number of pages16
Issue number7
Publication statusPublished - 2012


  • Adenosine
  • Blood Platelets
  • Cardiovascular Diseases
  • Cytochrome P-450 Enzyme System
  • Humans
  • Individualized Medicine
  • Piperazines
  • Platelet Aggregation
  • Platelet Aggregation Inhibitors
  • Platelet Function Tests
  • Prodrugs
  • Purinergic P2Y Receptor Antagonists
  • Receptors, Purinergic P2Y12
  • Thiophenes
  • Ticlopidine


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