论文期刊

Voriconazole therapeutic drug monitoring: factors associated with supertherapeutic and subtherapeutic voriconazole concentrations




作者: Haisheng You, Yalin Dong*, Taotao Wang*
发表/完成日期: 2018-02-05
期刊名称: International Journal of Clinical Pharmacology and Therapeutics
期卷:
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论文简介
Voriconazole trough concentration (Cmin) varies widely, and Cmin outside the therapeutic range (COTR) is associated with response failure and toxicity. The objective of this study was to identify potential factors associated with COTR in patients, and specifically the population at a high risk of COTR. Materials and methods: We performed a retrospective study of patients who received voriconazole from 2009 to 2016. Voriconazole Cmin values were analyzed with high-performance liquid chromatography, and values of 4 mg/L were defined as COTR. Logistic regression and the classification and regression tree (CART) were used to explore the potential factors associated with COTR. Results: In total, 134 voriconazole Cmin values were measured in 64 patients who met the eligibility criteria: 55 (41.0%) were subtherapeutic, and 79 (59.0%) were supertherapeutic. Logistic regression revealed that voriconazole COTR was significantly associated with age, CYP2C19 genetic status, and liver function after voriconazole treatment. CART identified the high-risk population of COTR: (1) patients' age 47 years and with acute liver dysfunction after voriconazole treatment, (3) non-poor metabolizers, aged from 46 to 65 years and with normal liver function after voriconazole treatment, and (4) old (age > 65 years) patients with normal liver function and body weight < 66 kg. Conclusion: Our findings suggest that age, CYP2C19 genetic status, and liver function status are strongest predictors of voriconazole COTR. Clinically, these results can be used to estimate the probability of voriconazole COTR in individual patients.
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