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GUT:英夫利昔单抗治疗IBD患者的抗SARS-CoV-2抗体反应减弱

2021-03-25 MedSci原创 MedSci原创

接受英夫利昔单抗治疗的患者对SARS-CoV-2感染的血清学反应降低,血清阳性率、血清转换率和抗体反应性降低。英夫利昔单与SARS-CoV-2的血清学反应减弱有关。

抗肿瘤坏死因子(抗TNF)药物损害肺炎球菌、流感和病毒性肝炎疫苗接种后的保护性免疫,增加严重呼吸道感染的风险。Nicholas A Kennedy试图确定英夫利昔单抗治疗的IBD患者是否减弱了对SARS-CoV-2感染的血清学反应。研究结果发表在GUT杂志。

他们将接受英夫利昔单抗治疗的参与者的抗体反应与接受维多珠单抗治疗的参照组进行比较。维多珠单抗是一种肠道选择性抗整合素α4β7单克隆抗体,与疫苗反应受损或系统感染易感性增加无关。在2020年9月22日至12月23日期间,从92家英国医院招募了6935名患者。

森林图显示抗SARS-CoV-2抗体阳性的多变量logistic回归模型相关系数

通过生物治疗对抗SARS-CoV-2抗体反应性的大小进行分层的密度图,参与者的血清学样本至少2周前抗SARS-CoV-2聚合酶链反应呈阳性。COIcut-off指数。

两组间有症状和确诊的SARS-CoV-2感染率相似。英夫利昔单抗治疗组血清阳性率低于维奥珠单抗治疗组[3.4%(161/4685) vs 6.0%(134/2250),P<0.0001)]。多变量Logistic回归分析证实,英夫利昔单抗[vs维多利单抗;OR0.66(95%CI: 0.51 to 0.87),p=0.0027]和免疫调节剂的使用[OR=0.70 (95%CI: 0.53 to 0.92),p=0.012]与低血清阳性率相关。在确诊为SARS-CoV-2感染的患者中,英夫利昔单抗治疗的患者血清转换率低于维多珠单抗治疗的患者[48%(39/81) vs 83%(30/36),p=0.00044],抗SARS-CoV-2反应程度也更低(中位数为0.8,cut-off指数(0.20-5.6)vs 37.0(15.2-76.1),p<0.0001)。

该研究发现英夫利昔单抗治疗和维多利单抗治疗的患者之间有症状和证实的SARS-CoV-2感染率和住院率相似,这表明我们的发现不能仅仅用感染的获得性或严重程度的差异来解释。相反,英夫利昔单抗似乎直接影响感染的血清学反应。与硫嘌呤或甲氨蝶呤同时使用的免疫调节剂进一步削弱了对这两种药物的血清学反应,在PCR确认感染后的中位数5.4周后,只有不到一半的患者(37%)有可检测到的抗SARS-CoV-2抗体。这项研究的主要优势是在一个狭窄的窗口内招募了7000多名连续的患者,减轻了大流行过程中的时间成为一个重要协变量的可能性。其他优势包括全面的患者报告结果的电子收集,与SARS-CoV-2公共卫生检测数据的联系,符合世卫组织标准的病例查明,纳入社会疏远行为,以及使用敏感和特定的血清学分析。

接受英夫利昔单抗治疗的患者对SARS-CoV-2感染的血清学反应降低,血清阳性率、血清转换率和抗体反应性降低。英夫利昔单与SARS-CoV-2的血清学反应减弱有关,而SARS-CoV-2的血清学反应可被同期治疗的免疫调节剂进一步钝化。SARS-CoV-2感染的血清学反应受损可能对全球公共卫生政策和个别接受抗TNF治疗的患者具有重要意义。应考虑进行血清学检测和病毒监测,以发现不理想的疫苗反应、持续感染和病毒演变,以便为公共卫生政策提供信息。

原文出处:

Kennedy, Nicholas A et al. “Anti-SARS-CoV-2 antibody responses are attenuated in patients with IBD treated with infliximab.” Gut, gutjnl-2021-324388. 22 Mar. 2021, doi:10.1136/gutjnl-2021-324388

 

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    2022-01-26 hukaixun
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    2021-03-27 bnurmamat
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    2021-03-27 小刀医生

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