J Rheumatol:CNTO6785对甲氨蝶呤反应不良性类风湿关节炎的疗效

2017-11-09 xiangting MedSci原创

CNTO6785耐受性良好,但没有证明出对MTX难治性活动RA患者的临床疗效。

这项研究旨在评价一种可以结合人类白介素17A的全人类单克隆抗体,CNTO6785,对甲氨蝶呤(MTX)反应不良的活动性类风湿关节炎(RA)的疗效、安全性、药代动力学和免疫原性。

这项随机双盲安慰剂对照,剂量范围的研究纳入MTX难治(每周7.5-25mg,包括)的18-80岁(含)的活动性RA患者(≥6/66肿胀≥6/68压痛关节)。研究期限为38周,包括10周的安全性随访。患者按1:1:1:1:1随机分组接受每415,50,100,200 mg CNTO6785+MTX或安慰剂+ MTX。主要终点是第16周的美国风湿病学会20(ACR20)应答。

第16周,与安慰剂相比,用CNTO6785治疗的主要终点ACR20应答的患者比例没有显著差异。到第32周,没有任何额外的疗效指标的发现。CNTO6785治疗组不良事件中没有观察到剂量-反应关系或特定模式。所有组的感染发生率相似,注射部位反应轻度或中度,并没有表现出剂量-反应关系。38周的中位血清CNTO6785浓度增加约为剂量比例; 中和抗药物抗体的发生率为19.4%,与研究药物剂量水平无关。

CNTO6785耐受性良好,但没有表现出对MTX难治性活动RA患者的临床疗效。

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