基于群体药动学的万古霉素个体化给药模式的建立和临床应用Establishment of the individualized drug delivery model of vancomycin for infected patients based on population pharmacokinetics and its clinical application
何娟,杨婉花
摘要(Abstract):
目的评估万古霉素群体药动学软件(JPKD-vancomycin)在中国人群的预测,并验证其临床应用效果。方法根据万古霉素群体药动学(PPK)研究模型,在JPKD的自定义板块重新定义新的万古霉素药动学模型。利用贝叶斯反馈法方法估算万古霉素药动学参数。收集我院接受万古霉素治疗的住院患者,排除严重肾功能不全者(肌酐清除率<50 m L·min-1)以及合并用药者(甘露醇、多巴胺、多巴酚丁胺、呋塞米),筛选出有调整过万古霉素剂量且有稳态谷浓度测定数据者68例。将患者第1次的万古霉素给药剂量及相关的个体化信息输入JPKD-vancomycin,使用贝叶斯反馈法估算出患者个人的药动学参数,再输入第2次的万古霉素给药剂量,输注时间和给药间隔,由软件依据上述参数预测出更改剂量后的谷浓度数据,计算预测浓度与实测浓度之间的权重偏差(WRES),考察该软件的预测能力,并通过临床病例验证。结果所有患者使用万古霉素后的实际稳态谷浓度为(11.71±5.15)mg·L-1,以JPKD-vancomycin运算后预测的谷浓度为(11.55±5.19)mg·L-1,WRES为(11.6±7.9)%。模型对中国人群的预测能力良好;经临床初步验证,效果较为满意。结论 JPKD-vancomycin对中国人群万古霉素稳态谷浓度有良好的预测能力。本研究建立的JPKD-vancomycin个体化给药模式,有助于指导临床合理用药。
关键词(KeyWords): 万古霉素;JPKD;群体药动学;贝叶斯反馈法;个体化给药
基金项目(Foundation):
作者(Author): 何娟,杨婉花
DOI: 10.19577/j.cnki.issn10074406.2015.01.007
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