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- Title
Genetic variation of CYP3A5 influences paclitaxel/carboplatin-induced toxicity in Chinese epithelial ovarian cancer patients.
- Authors
Hu, Lei; Lv, Qiao‐Li; Guo, Ying; Cheng, Lin; Wu, Na‐Yiyuan; Qin, Chong‐Zhen; Zhou, Hong‐Hao
- Abstract
Combination chemotherapy with platinum and taxane is the first-line treatment for ovarian cancer. The dose-limiting toxicities of these drugs include neuropathy, leukopenia, and neutropenia, but they exhibit substantial interindividual variability. This study investigated the relationship between CYP3A5 polymorphisms and paclitaxel/carboplatin-induced toxicity in Chinese epithelial ovarian cancer patients. Seventy-five patients with epithelial ovarian cancer were recruited. After combination chemotherapy, genotype analysis was conducted, and toxic effects were evaluated according to the Common Toxicity Criteria. A significant association was found between myelosuppression and the CYP3A5*3 genotype. CYP3A5*3/*1 patients showed a significantly higher risk of developing leukopenia ( P < .001; Pearson's χ2 test) and neutropenia ( P < .001; Pearson's χ2 test) than CYP3A5*3*3 patients. CYP3A5*3/*3 patients had significantly higher median leukocyte and neutrophil nadir counts than CYP3A5*3*1 patients ( P < .001, Mann-Whitney U test). However, we did not observe an association between neuropathy and CYP3A5*3 in this study ( P =.64; Pearson's χ2 test). This is the first study to verify the influence of CYP3A5 polymorphisms on paclitaxel/carboplatin-induced toxicity in Chinese epithelial ovarian cancer patients. Our findings suggest that interindividual variability in paclitaxel/carboplatin-induced myelosuppression can be predicted by CYP3A5*3 genotyping and that incorporation of CYP3A5*3 genetic data in treatment selection could help to reduce myelosuppression events, thereby individualizing paclitaxel/carboplatin pharmacotherapy.
- Subjects
LEUCOPENIA; ANTINEOPLASTIC agents; CANCER patients; STATISTICAL correlation; DRUG toxicity; GENETIC polymorphisms; OVARIAN tumors; PACLITAXEL; DATA analysis software; DESCRIPTIVE statistics; CARBOPLATIN; MANN Whitney U Test; CYTOCHROME P-450; DISEASE risk factors
- Publication
Journal of Clinical Pharmacology, 2016, Vol 56, Issue 3, p349
- ISSN
0091-2700
- Publication type
Article
- DOI
10.1002/jcph.587