Arthritis Rheumatol:阿达木单抗治疗幼年特发性关节炎有效

2014-11-19 王兴强 丁香园

幼年特发性关节炎(JIA)是一种儿童常见的慢性风湿病,目前的治疗包括NSAIDS、DMARDS和生物制剂。传统DMARDS甲氨蝶呤(MTX)治疗的完全缓解率可达60-70%、生物制剂依那西普被认为具有很好的疗效和安全性,而抗人肿瘤坏死因子(TNF)的人源化单克隆抗体—阿达木单抗在此方面却报道甚少。 为此,加拿大亚伯达儿童医院的Schmeling博士等利用德国幼年特发性关节炎生物制剂注册研

幼年特发性关节炎(JIA)是一种儿童常见的慢性风湿病,目前的治疗包括NSAIDS、DMARDS和生物制剂。传统DMARDS甲氨蝶呤(MTX)治疗的完全缓解率可达60-70%、生物制剂依那西普被认为具有很好的疗效和安全性,而抗人肿瘤坏死因子(TNF)的人源化单克隆抗体—阿达单抗在此方面却报道甚少。

为此,加拿大亚伯达儿童医院的Schmeling博士等利用德国幼年特发性关节炎生物制剂注册研究平台,开展了一项针对阿达木单抗治疗JIA疗效和安全性的队列研究,文章发表在近期的Arthritis Rheumatol上。

该队列研究纳入了患儿289名,包括130名生物制剂初始治疗者和159名生物制剂转换治疗者。所有入组患者均每隔一周予阿达木单抗24mg/m2(最大剂量40mg)治疗,并规律随访(治疗开始的第1、3、6个月,及以后每6个月随访一次),共随访1046次(435.7病人年)。

研究者采用美国风湿病学会儿科风湿病性关节炎改善标准(ACR Pedi)和儿科关节炎活动评分表(JADAS-10)评估治疗效果,通过医生报告的方式获取药物不良事件的数据,并对关键数据进行秩和检验或卡方检验。结果分别从使用阿达木单抗治疗JIA的有效性和安全性两个方面进行呈现。

有效性:阿达木单抗治疗下,无论是初始治疗组还是转换治疗组,均获得了较高的缓解率,JADAS-10评分较基线水平明显下降。就JADAS-10评分的中位数而言,治疗开始时,初始治疗组评分显著高于转换治疗组(12.9>8.5,P=0.00044),而治疗结束时的评分却低于转换治疗组。

采用ACR Pedi评估缓解情况,发现治疗6个月后ACR Pedi 30、50、70、90的疗效达标率,初始治疗组分别为63.4%、61.0%、48.8%、34.2%,转换治疗组为47.6%、38.1%、21.9%、15.2%,P<0.05。

安全性:治疗过程中,有48名患儿出现了222次不良事件(50.9/100病人年),其中11次为严重不良事件(2.5/100病人年),未观察到任何恶性肿瘤发生,具体见表1。这些患者中,有11例出现了16次葡萄膜炎(3.7/100病人年),其中7例患儿既往有葡萄膜炎病史。另有58名患儿因各种原因中断治疗(表2)。

108-表1.jpg

108-表2.jpg

以上研究结果表明,对于幼年特发性关节炎患者,无论是生物制剂初始治疗还是转换治疗,阿达木单抗均疗效明显。安全性方面,仅少数患儿因为疗效差或不能耐受而中止治疗,这与其他生物制剂的安全性相似。但为了更好的评价阿达木单抗,仍需设计良好的随机对照试验进一步证实。

原始出处:

Schmeling H1, Minden K, Foeldvari I, Ganser G, Hospach T, Horneff G.Efficacy and safety of adalimumab as the first and second biologic agent in juvenile idiopathic arthritis: the German Biologics JIA Registry.Arthritis Rheumatol. 2014 Sep;66(9):2580-9. doi: 10.1002/art.38741.

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    2014-11-21 lmm397
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    2014-11-21 zhaojie88
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