Clinical impact of pharmacogenetic risk variants in a large chinese cohort.
Journal
Nature communications
Journal Volume
16
Journal Issue
1
Pages
6344
ISSN
2041-1723
Date Issued
2025-07-09
Author(s)
Wei, Chun-Yu
Wen, Ming-Shien
Cheng, Chih-Kuang
Sheen, Yi-Jing
Yao, Tsung-Chieh
Lee, Sing-Lian
Wu, Jer-Yuarn
Tsai, Ming-Fang
Li, Ling-Hui
Chen, Chun-Houh
Fann, Cathy S-J
Yang, Hsin-Chou
Huang, Yen-Tsung
Chen, Hung-Hsin
Liu, Yi-Min
Yeh, Erh-Chan
Chang, Li-Chun
et al.
Abstract
Incorporating pharmacogenetics into clinical practice promises to improve therapeutic outcomes by optimizing drug selection and dosage based on genetic factors affecting drug response. A key advantage of PGx-guided therapy is to decrease the likelihood of adverse events. To evaluate the clinical impact of PGx risk variants, we performed a retrospective study using genetic and clinical data from the largest Han Chinese cohort, comprising 486,956 individuals, assembled by the Taiwan Precision Medicine Initiative. We found that nearly all participants carried at least one genetic variant that could affect drug response, with many carrying multiple risk variants. Here we show the detailed analyses of four gene-drug pairs, azathioprine (NUDT15/TPMT), clopidogrel (CYP2C19), statins (ABCG2/CYP2C9/SLCO1B1), and NSAIDs (CYP2C9), for which sufficient data exists for statistical power. While the results validate previous findings that PGx risk variants are significantly associated with drug-related adverse events or ineffectiveness, the excess risk of adverse events or lack of efficacy is small compared to that found in those without the PGx risk variants, and most patients with PGx variants do not suffer from adverse events. Our results point to the complexity of implementing PGx in clinical practice and the need for integrative approaches to optimize precision medicine.
SDGs
Type
journal article