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NMPA:中国批准氘代药物——氘代丁苯那嗪用于HD舞蹈病和成人迟发性运动障碍

2020-05-18 梯瓦 梯瓦

5月18日,梯瓦医药信息咨询(上海)有限公司宣布旗下创新药物安泰坦®(氘代丁苯那嗪片)经中国国家药品监督管理局(NMPA)优先审评审批后,正式获批用于治疗与亨廷顿病(HD)有关的舞蹈病及成人迟

5月18日,梯瓦医药信息咨询(上海)有限公司宣布旗下创新药物安泰坦®(氘代丁苯那嗪片)经中国国家药品监督管理局(NMPA)优先审评审批后,正式获批用于治疗与亨廷顿病(HD)有关的舞蹈病及成人迟发性运动障碍(TD)。
中国是美国之后全球第二个批准该药物的国家。安泰坦®使用的氘代技术给予了活性成分良好的药代动力学曲线,从而允许减少给药频率,同时显示出对HD舞蹈病和成人迟发性运动障碍患者的有效性和可接受的安全性和耐受性[1-2]。

亨廷顿病是一种罕见的致命的神经退化性疾病,亚洲每十万人中大约有0.4人患病[3],平均发病年龄为40岁。舞蹈病( 无意识的、随机和突然的扭动和/或转动 )是这种疾病最为显著的表现之一并发生在大约90%的病人当中。

迟发性运动障碍是一种使人衰弱的运动紊乱,以舌头、嘴唇、脸、躯体和四肢部位的重复且不可控的运动为特征。TD在长期接受抗精神病药治疗的中国的精神分裂症患者当中的患病率为33.7%[4],可能是由某些用于治疗精神健康状况的药物引起的,这意味着使用这些药物的精神分裂症患者中有三分之一可能患有TD。

这种疾病不仅影响患者的治疗依从性,也影响患者的生活质量和他们的社会功能[5]。目前在中国对TD尚无明显有效的疗法。

中山大学附属第一医院神经内科裴中教授表示

与亨廷顿病有关的舞蹈病以及成人迟发性运动障碍均属于严重的神经系统疾病,影响着患者的日常生活功能和生活质量。由于传统治疗方案极为有限且缺乏循证指南依据,患者亟待安全且高效的新型疗法出现。安泰坦®拥有经临床试验验证的数据,是首个被FDA批准为突破疗法的TD治疗。该药为中国HD和TD患者提供了新的治疗方法,使他们的生活质量进一步提高成为可能。

梯瓦大中华区总经理Larry E. Merizalde表示

我们非常感谢国家药品监督管理局药品审评中心对于罕见病创新药物的重视,使得安泰坦®被纳入临床急需境外新药名单(第一批),并且进入优先审评审批通道,在短短4个月内完成获批。自此,安泰坦®成为中国首个获批的氘代药物,中国也成为该药在全球范围内获批的第二个国家。

梯瓦全球市场执行副总裁Gianfranco Nazzi补充道:

对梯瓦而言,引入全新疗法以满足患者未尽需求的意义重大,也令人无比激动。作为仿制药和特色药领域的全球领导者,我们始终致力于提供高质量的创新药物,提升药物可及性并改善患者生活质量。未来,我们将继续聚焦中国患者最迫切的临床需求,积极携手社会各界的合作伙伴,加速创新药物的引进,助力实现“健康中国2030”的美好愿景。

关于安泰坦®

安泰坦®于2017年4月获得美国FDA批准,是FDA首次批准的氘代产品,也是针对与亨廷顿病有关的舞蹈病的历史上第二个药物[6]。目前,该药已经在美国和中国两个国家获批,在美国的获批适应症包括与亨廷顿病(HD)有关的舞蹈病以及成人迟发性运动障碍(TD)。FDA对安泰坦®的批准代表了HD患者的一个重要的新治疗选择,并强调了对这个服务不足的患者群体更多治疗资源的需求,TD适应症被批准为突破性治疗。我们相信,治疗迟发性运动障碍的医生会欣赏到该疗法的剂量灵活性,以及专注于直接治疗运动障碍而不破坏正在进行的基础疾病治疗的能力[7]。

 

关于亨廷顿病有关的舞蹈病获批临床试验[8]

 

安泰坦®批用于治疗与亨廷顿病有关的舞蹈病是基于一项由90例患有明显亨廷顿病相关的舞蹈病患者参与的随机、双盲、安慰剂对照、多中心试验的结果。该研究主要临床评价指标为舞蹈病症状最高总评分(Total Maximal Chorea Score, TMC评分)。研究结果表明安泰坦®:

  • 具有显著的治疗效果。氘代丁苯那嗪组平均TMC评分改善幅度为4.4(安慰剂组1.9,P<0.0001),TMC评分提升6分以上的患者比例为33%(安慰剂组2%)。根据统一评定量表(Unified Huntington Disease Rating Scale, UHDRS),氘代丁苯那嗪组平均改善幅度为7.4(安慰剂组3.4,P=0.002)。
  • 可显著提高治疗成功率。根据患者整体印象变化量表(Patient Global Impression of Change, PGIC),氘代丁苯那嗪组治疗成功率为51%(安慰剂组20%,P=0.002);根据临床疗效总评量表(Clinical Global Impression of Change, CGIC),氘代丁苯那嗪组治疗成功率为42%(安慰剂组13%,P=0.002)。
  • 具有良好的安全性。在开始治疗的患者中神经精神事件的发生率较低。

关于成人迟发性运动障碍的临床试验[9]
安泰坦®获批用于治疗成人迟发性运动障碍是基于两项III期随机,双盲,安慰剂对照,平行组研究的结果。研究结果证明安泰坦®:

  • 具有显著的治疗效果。治疗第12周氘代丁苯那嗪组的异常不自主运动量(Abnormal Involuntary Movement Scale,AIMS)评分改善幅度为3.3(安慰剂组1.5,P<0.001),AIMS评分提升50%以上的患者比例为33%(安慰剂组12%,P=0.007)。
  • 可显著提高治疗成功率。在ARM-TD和AIM-TD研究的一项综合分析中,在第12周时,使用氘代丁苯那嗪的患者治疗成功的几率是使用安慰剂的患者的两倍多(2.1;P=0.005),并且使用氘代丁苯那嗪的患者的平均CGIC评分(48%)高于安慰剂(30%)
  • 具有良好的安全性和耐受性。氘代丁苯那嗪对嗜睡、体重或心脏代谢因素的测量没有负面的影响。


关于梯瓦
梯瓦是一家总部位于以色列的全球性医药公司,是全世界最大的“药柜”,拥有超过1,800个分子化合物,35,000个产品。在美国,平均每7个处方就会用到1个梯瓦公司的产品,在过去的10年里,梯瓦公司为美国的医疗系统累计节省一共超过2150亿美金。我们的使命是成为全球仿制药和生物制药的领导者,提高和改善病患的生活质量。目前梯瓦在全球约有45,000名员工,在超过60个国家开展业务,2018年全年销售额接近190亿美金。
现在梯瓦已经来到中国,作为全球使命的一部分,梯瓦中国将会在未来的几年里大力拓展本土业务,我们计划在明年上半年上市第一款由我们创新研发的原研药品安泰坦®,以高品质药品为中国数百万患者提供帮助。在未来,梯瓦承诺会为中国的病患,以更快的速度带来更新更好的药物。

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