Lancet:Ataluren用于杜氏肌营养不良的治疗

2017-07-18 zhangfan MedSci原创

研究发现,大部分杜氏肌营养不良症患者接受Ataluren治疗后症状无显著改善,但对于基线6MWD测试成绩300-400m之间的患者,治疗显示出显著的效果。基于6MWD的患者分层是预测患者治疗受益的有效途径,未来的研究将集中于患者的个性化治疗开展

杜氏肌营养不良症(DMD)是一种严重、进展性、罕见的神经肌肉X连锁隐性疾病。该疾病的根本原因是抗肌萎缩蛋白缺乏,近日研究人员考察了抗肌萎缩蛋白蛋白恢复疗法——Ataluren的疗效和安全性。

这是一项多中心、随机、双盲、安慰剂对照III期研究。在18个国家的54个中心开展。7-16岁无义突变的DMD男童参与,患儿基线6分钟步行测试(6MWD)在150米以上,年龄和身高预测较正常值低80%。患者随机接受40mg/kg的Ataluren,每天3次或安慰剂。研究根据年龄、皮质类固醇治疗时间以及基线6MWD成绩分层。主要终点是治疗48周后得到6MWD变化。研究依据基线6MWD进行亚组分析以反映超过1年的疾病进展预期收益。

研究招募患者230人,Ataluren组115人,安慰剂115人。48周6MWD测试成绩,治疗组为-47.7m,安慰剂组为-60.7m(差异13.0m,95%,CI,-7.4-33.4)。亚组分析中,治疗组相对于对照组,基线6MWD小于300m的成绩差异为-7.7m,300-400m成绩差异为42.9m,超过400m的成绩差异为-9.5m。Ataluren具有良好的耐受性,大部分不良事件程度较轻。

研究发现,大部分杜氏肌营养不良症患者接受Ataluren治疗后症状无显著改善,但对于基线6MWD测试成绩300-400m之间的患者,治疗显示出显著的效果。基于6MWD的患者分层是预测患者治疗受益的有效途径,未来的研究将集中于患者的个性化治疗开展。

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    2017-12-17 howi
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    2017-07-19 bbjsj_1981
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    2017-07-18 中医痴

    不错的,学习了,谢谢分享!

    0

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    2017-07-18 135****7952平儿

    学了。。。。。。。。。。。。

    0

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异常心肌细胞(左)和修复之后的心肌细胞(右)2017年4月18日讯 /生物谷BIOON /——德州大学西南医学研究中心研究员利用新的基因编辑酶CRISPR-Cpf1在实验室了人类细胞和老鼠体内的杜氏肌营养不良。 该研究组过去使用原有的基因编辑系统CRISPR-Cas9纠正患有此病的老鼠模型和人类细胞内的杜氏肌缺陷。在目前的研究中,他们使用一种新的基因编辑系统,用于修复老鼠模型和人类细胞中

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超声显像的灰度级(GSL)以及回波信号测量的定量背散射分析(QBA)均表现出检测杜氏肌营养不良肌肉功能异常的敏感性,未来研究将针对超声检查用于治疗效果的评价开展