Genotyping for clopidogrel after PCI

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Does genotyping patients for their clopidogrel metabolizer status add any value to platelet function tests after PCI?

Genetic clopidogrel metabolizer status is a good marker of clopidogrel response but does not add value to the prediction by PFT which was used to adjust therapy.

Collet, Jean-Philippe, et al. “Genetic and platelet function testing of antiplatelet therapy for percutaneous coronary intervention: the ARCTIC-GENE study.” European journal of clinical pharmacology 71.11 (2015): 1315-1324