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Article

Frequency of CYP3A4, CYP3A5, CYP2C9, and CYP2C19 variant alleles in patients receiving clopidogrel that experience repeat acute coronary syndrome.

Heart and vessels - 1 Mar 2009

Brackbill Marcia L, Kidd Robert S, Abdoo April D, Warner James G, Harralson Arthur F

Abstract excerpt

The presence of cytochrome P450 (CYP) variant alleles may reduce the activation of the prodrug clopidogrel to its active state. This research evaluated the frequency of variant alleles in the genes coding for CYP3A4, CYP3A5, CYP2C9, and CYP2C19 enzymes in patients on clopidogrel therapy and experiencing repeat acute coronary syndrome (ACS) compared to a control group with a matching ethnic composition. Real-time...

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PMID: 19337788
DOI: 10.1007/s00380-008-1085-2

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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