Neurology:托珠单抗治疗视神经脊髓炎安全有效

2014-04-29 幸福的味道 dxy

视神经脊髓炎是神经科较为常见的一种自身免疫性疾病,其主要累及脊髓和视神经,并出现特征性的抗水通道蛋白4(AQP4)抗体。由于多发性硬化(MS)和NMO本身固有的发病机制并不一致,用于治疗MS的疾病修饰药物包括干扰素β并不能用于NMO的治疗。既往研究发现白介素6(IL-6)可增加AQP4抗体的产生,因此,阻断IL-6受体传导通路可能会减少NMO的疾病活动性。【原文下载】抗IL-6受体抗体托珠单抗(T

视神经脊髓炎是神经科较为常见的一种自身免疫性疾病,其主要累及脊髓和视神经,并出现特征性的抗水通道蛋白4(AQP4)抗体。由于多发性硬化(MS)和NMO本身固有的发病机制并不一致,用于治疗MS的疾病修饰药物包括干扰素β并不能用于NMO的治疗。既往研究发现白介素6(IL-6)可增加AQP4抗体的产生,因此,阻断IL-6受体传导通路可能会减少NMO的疾病活动性。【原文下载】

抗IL-6受体抗体托珠单抗(TCZ)在多个国家已被批准用于治疗风湿性关节炎,但没有研究探索其可能治疗NMO的疗效。因此,来自日本的Takashi Yamamura教授等人进行了一项研究,旨在评估抗白介素6受体抗体TCZ治疗视神经脊髓炎(NMO)患者的安全性和疗效。该研究结果发表于近期《神经病学》杂志中。

研究入选了7例抗水通道蛋白4抗体(AQP4)阳性的NMO或者NMO谱系疾病患者,他们在入选基线时均对目前治疗反应欠佳。患者在其目前治疗的基础上联合注射使用TCZ 8mg/kg,每月一次,连续一年。研究者评估年复发率,扩展残疾状态量表评分,以及神经源性疼痛和疲劳的数字评估量表。采用AQP-4转染细胞检测抗AQP4抗体的血清水平。

总共入选了6例女性,1例男性NMO患者。在为期1年的TCZ治疗后,年复发率从2.9 ± 1.1 下降至 0.4 ± 0.8 。扩展残疾状态量表评分、神经源性疼痛以及总体疲劳状态评分也显著下降。研究显示TCZ对难治性疼痛改善作用超出预料。

该研究为TCZ减少NMO患者复发率,神经源性疼痛以及疲劳症状提供了IV级证据。研究者认为白介素-6受体阻断剂,如托珠单抗(TCZ)是NMO的一种很有前景的治疗方法。


原始出处:

Araki M1, Matsuoka T, Miyamoto K, Kusunoki S, Okamoto T, Murata M, Miyake S, Aranami T, Yamamura T.Efficacy of the anti-IL-6 receptor antibody tocilizumab in neuromyelitis optica: A pilot study.Neurology. 2014 Apr 15;82(15):1302-6. doi: 10.1212/WNL.0000000000000317. Epub 2014 Mar 14.【原文下载】

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    2015-01-20 gj0740
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    2014-09-06 yinhl1978
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