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The AKR1D1*36 (rs1872930) Allelic Variant Is Independently Associated With Clopidogrel Treatment Outcome
Aleksandra Kapedanovska-Nestorovska1, Aleksandar J Dimovski1,2, Zoran Sterjev1
1Center for Biomolecular and Pharmaceutical Analysis, Faculty of Pharmacy, University Ss Cyril and Methodius, Skopje, Republic of North Macedonia.
Insights
The AKR1D1*36 allele increases the risk of major adverse cardiovascular and cerebrovascular events (MACCE) in patients treated with clopidogrel, leading to shorter event-free survival.
Area of Science:
- Pharmacogenomics
- Cardiovascular Medicine
- Genetics
Background:
- Clopidogrel is a widely used antiplatelet medication.
- Genetic variations can influence clopidogrel's efficacy and patient outcomes.
- Identifying genetic markers for adverse events is crucial for personalized medicine.
Purpose of the Study:
- To investigate the association between the AKR1D1*36 (rs1872930) allele and the risk of major adverse cardiovascular and cerebrovascular events (MACCE).
- To evaluate the impact of this genetic variant on event-free survival in patients receiving clopidogrel therapy.
Main Methods:
- Observational cohort study of 118 cardiovascular patients on clopidogrel therapy.
- Kaplan-Meier/Log-rank analysis and multivariable Cox regression were employed.
- Follow-up duration was a median of 38.5 months.
Main Results:
- Patients with the AKR1D1*36 allele exhibited significantly shorter event-free survival (HR=2.193, p=0.0155).
- The AKR1D1*36 allele was confirmed as an independent risk factor for MACCE (HR=2.36).
- Other independent risk factors identified included previous PCI, history of myocardial infarction, and CYP2C19*2 polymorphism.
Conclusions:
- The AKR1D1*36 (rs1872930) variant is an independent predictor of increased MACCE risk.
- This genetic variant is associated with reduced event-free survival in clopidogrel-treated patients.
- Findings highlight the importance of pharmacogenetic profiling for optimizing clopidogrel therapy.
Aims:
The present observational cohort study evaluated the association between the AKR1D1*36 (rs1872930) allele and the risk of major adverse cardiovascular and cerebrovascular events (MACCE) in clopidogrel treated patients.
Methods:
We screened 198 consecutive cardiovascular patients on clopidogrel therapy admitted in October to November 2010 with cardiovascular or cerebrovascular symptoms; of these 118 met the study protocol entry criteria; the median age of the cohort was 62.5 years (IQR 57-66 years), and 55% were females.
Results:
The median follow up time was 38.5 (IQR 24-48) months; Kaplan-Meier/Log-rank analysis showed that patients carrying the AKR1D1*36 allelic variant have a shorter event-free-survival compared to wild type patients, hazard ratio = 2.193 (95% CI, 1.091 to 4.406); p = 0.0155. Multivariable Cox regression analysis confirmed the AKR1D1*36 allele as an independent risk factor (HR = 2.36; 95% CI, 1.34 to 4.18) and identified 3 other risk factors for MACCE; previous percutaneous interventions (PCI), HR = 2.78; (95% CI, 1.34 to 5.78), and a history of myocardial infarction, HR = 2.62; (95% CI, 1.48 to 4.64) at baseline and the previously reported CYP2C19*2 polymorphism (HR = 2.33; 95% CI, 1.33 to 4.06).
Conclusion:
The AKR1D1*36 (rs1872930) variant is independently associated with a higher risk for MACCE and shorter event-free survival time.
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