Clin Gastroenterology H:缩短乌司奴单抗的用药时间能够提高治疗克罗恩病的有效性

2021-01-03 MedSci原创 MedSci原创

虽然目前乌司奴单抗已经被指南推荐作为二线的治疗克罗恩病的生物制剂,但是仍有部分患者对于乌司奴单抗存在失应答的现象。

      虽然目前乌司奴单抗已经被指南推荐作为二线的治疗克罗恩病的生物制剂,但是仍有部分患者对于乌司奴单抗存在失应答的现象。乌司奴单抗维持治疗期间的使用方法为每8周一次90毫克给药,本项研究旨在探究缩短给药时间间隔是否会有利于克罗恩病的治疗。

 

      研究人员采用回顾性研究来评估缩短乌司奴单抗的剂量间隔的有效性,本项研究共收集了从506个每8周接受90 mg皮下乌司奴单抗的CD患者的数据。另外有110名患者中最初每8周接受皮下注射乌司奴单抗90 mg,然后时间间隔缩短至每4周一次。队列中缩短剂量间隔前后的Harvey Bradshaw指数(HBI)得分适用于该队列中的78例患者(71%),60例患者的C反应蛋白(CRP)水平(55%)。

 

      研究结果显示缩短剂量间隔后,患者的HBI中位数从4.5降至3(P= .002),CRP的中位数从8 mg/L降至3mg/L(P= .031),粪便中位数钙卫蛋白从378微克/克降至157微克/克( P = .57)。在HBI> 4的患者中,CRP水平 ≥5mg / dL,粪便钙卫蛋白水平> 250ug / g,或在缩短剂量间隔前有内镜证据显示疾病活动,在缩短剂量间隔后,有28%的患者获得了临床缓解(HBI评分≤4),有22%的患者CRP恢复正常水平(<5 mg/dL),50%的粪便钙卫蛋白水平降低,36%存在内镜缓解。

 

 

      通过本项研究研究人员证实对于每8周90mg的无反应的CD患者,将乌司奴单抗的间隔缩短至4周,可以改善疾病活动的临床和生物学指标。

 

 

 

原始出处:

Jacob E. Ollech. Et al. Effectiveness of Ustekinumab Dose Escalation in Patients With Crohn’s Disease. Clinical Gastroenterology Hepatology. 2021.

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