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Updated: May 16, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
Published on: April 1, 2019
Impact of genetic polymorphisms on clinical response to antithrombotics
Kena J Lanham1, Julie H Oestreich, Steven P Dunn
1Pharmacy Services, UK HealthCare, University of Kentucky, Lexington, Kentucky, USA; ; Department of Pharmacy Practice and Science, College of Pharmacy, University of Kentucky, Lexington, Kentucky, USA;
Insights
Pharmacogenetics significantly impacts how patients respond to antithrombotic drugs like warfarin and clopidogrel. Further research is needed to optimize their use in cardiovascular disease management.
Area of Science:
- Pharmacology
- Cardiovascular Medicine
- Genetics
Background:
- Antithrombotic therapy is crucial for cardiovascular disease (CVD) management.
- Patient response to antithrombotic medications varies significantly.
- Pharmacogenetic factors are a major contributor to this response variability.
Purpose of the Study:
- To comprehensively review the literature on genetic polymorphisms affecting antithrombotic drug action.
- To assess the impact of pharmacogenetics on clinical outcomes and surrogate markers.
- To evaluate the influence of genetic variations on warfarin, clopidogrel, prasugrel, and aspirin efficacy.
Main Methods:
- Systematic literature review of studies on pharmacogenetics and antithrombotic agents.
- Analysis of research evaluating surrogate markers and clinical outcomes.
- Synthesis of findings related to genetic polymorphisms and drug response.
Main Results:
- Conflicting results exist regarding the extent to which pharmacogenetics influences medication management in CVD.
- Genetic variations impact the efficacy and safety of key antithrombotic drugs.
- The clinical significance of pharmacogenetic testing in routine practice remains debated.
Conclusions:
- Pharmacogenetics plays a role in antithrombotic therapy, but its precise impact is not fully established.
- Additional research is required to identify and validate genetic and non-genetic factors.
- Optimizing antithrombotic treatment necessitates a deeper understanding of individual variability.
Abstract:
Antithrombotic therapy, including anticoagulants as well as antiplatelet drugs, is an important component in the treatment of cardiovascular disease. Variability in response to such medications, of which pharmacogenetic response is a major source, can decrease or enhance the benefits expected. This review is a comprehensive assessment of the literature published to date on the effects of genetic polymorphisms on the actions of a variety of antithrombotic medications, including warfarin, clopidogrel, prasugrel, and aspirin. Literature evaluating surrogate markers in addition to the impact of pharmacogenetics on clinical outcomes has been reviewed. The results of the studies are conflicting as to what degree pharmacogenetics will affect medication management in cardiovascular disease. Additional research is necessary to discover, characterize, and prospectively evaluate genetic and non-genetic factors that impact antithrombotic treatment in order to maximize the effectiveness and limit the harmful effects of these valuable agents.
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