期刊
EUROPEAN JOURNAL OF CANCER
卷 54, 期 -, 页码 40-48出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2015.11.008
关键词
Dihydropyrimidine dehydrogenase; DPYD; Fluoropyrimidines; Capecitabine; 5-Fluorouracil; Pharmacogenomics; Individualised medicine
类别
5-Fluorouracil (5-FU) and capecitabine (CAP) are among the most frequently prescribed anticancer drugs. They are inactivated in the liver by the enzyme dihydropyrimidine dehydrogenase (DPD). Up to 5% of the population is DPD deficient and these patients have a significantly increased risk of severe and potentially lethal toxicity when treated with regular doses of 5-FU or CAP. DPD is encoded by the gene DPYD and variants in DPYD can lead to a decreased DPD activity. Although prospective DPYD genotyping is a valuable tool to identify patients with DPD deficiency, and thus those at risk for severe and potential life-threatening toxicity, prospective genotyping has not yet been implemented in daily clinical care. Our goal was to present the available evidence in favour of prospective genotyping, including discussion of unjustified worries on cost-effectiveness, and potential underdosing. We conclude that there is convincing evidence to implement prospective DPYD genotyping with an upfront dose adjustment in DPD deficient patients. Immediate benefit in patient care can be expected through decreasing toxicity, while maintaining efficacy. (C) 2015 Elsevier Ltd. All rights reserved.
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