IBD: 英夫利昔单抗药物浓度达标可改善克罗恩病中中性粒细胞的水平

2020-10-10 MedSci原创 MedSci原创

内镜评估仍然是监测克罗恩病(CD)患者治疗反应的金标准,但是,经常使用内窥镜检查评估疾病会增加患者的负担,风险和成本。

         内镜评估仍然是监测克罗恩病(CD)患者治疗反应的金标准,但是,经常使用内窥镜检查评估疾病会增加患者的负担,风险和成本。嗜中性粒细胞衍生的粪便生物标记钙卫蛋白(FCP)和乳铁蛋白(LCT)现在已被广泛接受为CD新的筛查工具。本项研究旨在评估与FCP缓解相关的LCT和nCD64中性粒细胞与英夫利昔单抗(IFX)谷浓度之间的关系。

 

         研究人员在儿童克罗恩病(CD)队列研究中分析了IFX诱导前后的FCP,LCT和nCD64水平。第14周FCP生物标志物的缓解定义为FCP <250µg/g,临床反应定义为小儿克罗恩氏病活动指数加权<12.5或变化程度Δ> 17.5。对于生物制剂的有效程度的判断采用ROC曲线进行计算。

 

         在56名CD患者中,ROC分析确定了 LCT <8.06(在接受者操作者特征下的区域[AUROC],0.934,P <0.001)和nCD64 <6.12(AUROC,0.76,P=0.02)是第14周FCP生物标志物缓解的有效生物标志物。诱导终点IFX谷值> 9.4 µg / mL(AUROC,0.799,P=0.002)和> 11.5 µg / mL(AUROC,0.835,P=0.003)分别与FCP <250和FCP <100有关。另外,研究人员还发现IFX谷浓度> 5µg/mL的患者FCP明显改善,而水平<5 µg/mL时只有35%达到疾病缓解(P = 0.024)。

 

        研究人员最后说道:中性粒细胞nCD64和LCT可以用于判断诱导治疗后的缓解和IFX治疗谷浓度水平。

 

 

原始出处:

Ruben J Colman. Et al. Achieving Target Infliximab Drug Concentrations Improves Blood and Fecal Neutrophil Biomarkers in Crohn’s Disease. Inflammatory Bowel Diseases.2020.

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