Cost-effectiveness of Platelet Function-Guided Strategy with Clopidogrel or Ticagrelor

Some patients treated with dual antiplatelet therapy (DAPT) following acute coronary syndrome (ACS) can still exhibit heightened residual platelet reactivity (HRPR), which is potentially linked to adverse vascular outcomes. Better tailored DAPT strategies are needed to address this medical need. Aim: To assess the cost-effectiveness of guided DAPT with clopidogrel or ticagrelor in addition to aspirin when using VerifyNow P2Y(12) testing in post-ACS patients. Methods: The costs were calculated per 1,000 patients aged >55 years. It was assumed that all patients received either generic clopidogrel or ticagrelor for 1 year, and underwent VerifyNow P2Y(12) assay testing before DAPT maintenance. Results: Guided DAPT will prevent five more MIs and six more deaths per 1,000 patients than a standard prescription of generic clopidogrel. The total predictive value of costs per patient is 32% lower if a guided strategy is used than if ticagrelor is given to all patients. Conclusion: Assessment of heightened residual platelet reactivity with P2Y(12) assay in triaging DAPT post-ACS patients for 1 year is a cost-effective strategy that would reduce financial burden compared to routine administration of more expensive antiplatelet agents.