Variability of clopidogrel response in patients with type 2 diabetes mellitus

Hurst Hall, Subhash Banerjee, Darren K McGuire

Research output: Contribution to journalReview articlepeer-review

25 Scopus citations


The global prevalence of diabetes mellitus (DM) continues to climb, and is accompanied by an increase in DM associated complications, most often manifesting as coronary heart disease. Platelet dysfunction has been implicated as a central contributor to the increased risk of coronary artery disease in patients with DM, and it is not surprising that the anti-platelet agent, clopidogrel, has been shown to have efficacy in both short and long term outcomes in patients with acute coronary syndrome and those undergoing percutaneous coronary intervention. However, accumulating data suggest a clinically relevant sub-optimal clopidogrel response in some patients with DM. The exact mechanism of these observations is not yet fully understood, but appears to be related to reduced concentrations of circulating clopidogrel active metabolite, with less variability in pharmacodynamic and clinical response suggested by the evaluation of newer P2Y12 antagonists, such as prasugrel and ticagrelor. More research is needed to better understand both the pharmacology and clinical consequences of these observations.

Original languageEnglish (US)
Pages (from-to)245-253
Number of pages9
JournalDiabetes and Vascular Disease Research
Issue number4
StatePublished - Oct 2011


  • Diabetes mellitus
  • anti-platelet therapy
  • clopidogrel
  • coronary heart disease
  • prasugrel
  • resistance
  • ticagrelor

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Cardiology and Cardiovascular Medicine


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