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FDA批准Vertex囊性纤维化靶向药物Kalydeco用于2-5岁儿童

2015-03-20 佚名 生物谷

Vertex制药近日收获利好消息,FDA已批准Kalydeco(ivacaftor)用于携带囊性纤维化跨膜电导调节因子(CFTR)10种突变之一(G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N, S549R,R117H)的2-5岁囊性纤维化(CF)儿童患者。此前,FDA已批准Kalydeco用于携带这些突变的6岁及以上患者群

Vertex制药近日收获利好消息,FDA已批准Kalydeco(ivacaftor)用于携带囊性纤维化跨膜电导调节因子(CFTR)10种突变之一(G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N, S549R,R117H)的2-5岁囊性纤维化(CF)儿童患者。此前,FDA已批准Kalydeco用于携带这些突变的6岁及以上患者群体。据估计,在美国约有300例2-5岁儿童患者携带上述10种突变,其中携带R117H突变的患者约为150例,其他150例携带另9种突变。在欧盟,Kalydeco用于2-5岁儿童群体的扩大适应症申请正在审查中。据估计,在美国、加拿大、欧洲、澳大利亚,目前有超过3400例患者适合Kalydeco治疗。不过,值得一提的是,Kalydeco相当昂贵,售价高达30万美元/人/年,这也意味着此次扩大适应症批准,将为Vertex每年新增近1亿美元的收入。

Kalydeco扩大适应症的获批,是基于一项开放标签24周III期临床试验,该研究调查了基于体重的新配方给药方案(50mg或75mg每日2次)在2-5岁儿童患者中的安全性和药代动力学。为了满足这个年龄组儿科患者的需求,Vertex开发了一种新的基于体重的口服颗粒配方的Kalydeco(50mg和75mg),对于可能无法吞咽片剂的患者,可以将药物与食物或液体混合后给药。

Kalydeco是首个靶向囊性纤维化(CF)根本病因的药物,可使患者体内缺陷性CFTR蛋白发挥正常功能,该药于2012年首次获FDA及EMA批准,用于治疗CFTR基因存在至少单拷贝G551D突变的6岁及以上囊性纤维化(CF)患者。之后的2014年6月,FDA进一步批准Kalydeco用于携带9种非G551D门控突变中任意一种突变的6岁及以上CF患者。

在全球多个国家,Kalydeco均被授予孤儿药地位。当前,Vertex正马不停蹄迅速推进另一种非常重要的组合疗法Kalydeco/lumacaftor用于携带F508del突变的CF患者,目前这一组合疗法已在III期临床取得成功。据ISI集团分析师预计,在全球范围内,携带F508del突变的患者总数超过2.8万例。如果该组合最终获批上市,Vertex将手握堪比吉利德丙肝明星药Sovaldi的超级重磅药物。

囊性纤维化(CF)是由囊性纤维化跨膜电导调节因子(CFTR)基因突变导致CFTR蛋白功能缺陷或缺失所致的罕见遗传性疾病,该病困扰着全球约7万人。CFTR蛋白通常调节细胞膜的离子运输,基因突变能导致蛋白产物功能的破坏或丧失。当细胞膜离子运输被中断,某些器官粘液涂层的粘度将变稠。该病的一个主要特征是呼吸道积聚厚厚的粘液,导致呼吸困难及反复感染。

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    2015-05-30 bugit
  2. [GetPortalCommentsPageByObjectIdResponse(id=1839366, encodeId=5ef1183936667, content=<a href='/topic/show?id=341ae311ea' target=_blank style='color:#2F92EE;'>#FDA批准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7311, encryptionId=341ae311ea, topicName=FDA批准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=bugit, createdTime=Sat May 30 12:12:00 CST 2015, time=2015-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1675815, encodeId=bb1b16e5815c9, content=<a href='/topic/show?id=7395403e580' target=_blank style='color:#2F92EE;'>#囊性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40375, encryptionId=7395403e580, topicName=囊性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=926927300775, createdName=wolongzxh, createdTime=Tue Aug 25 20:12:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417933, encodeId=a8dd141e93330, content=<a href='/topic/show?id=4b711839233' target=_blank style='color:#2F92EE;'>#Vertex#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18392, encryptionId=4b711839233, topicName=Vertex)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4e443309191, createdName=liuli5080, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621464, encodeId=8106162146488, content=<a href='/topic/show?id=559c104056d' target=_blank style='color:#2F92EE;'>#Kalydeco#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10405, encryptionId=559c104056d, topicName=Kalydeco)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d49420270114, createdName=windight, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=)]
    2015-08-25 wolongzxh
  3. [GetPortalCommentsPageByObjectIdResponse(id=1839366, encodeId=5ef1183936667, content=<a href='/topic/show?id=341ae311ea' target=_blank style='color:#2F92EE;'>#FDA批准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7311, encryptionId=341ae311ea, topicName=FDA批准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=bugit, createdTime=Sat May 30 12:12:00 CST 2015, time=2015-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1675815, encodeId=bb1b16e5815c9, content=<a href='/topic/show?id=7395403e580' target=_blank style='color:#2F92EE;'>#囊性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40375, encryptionId=7395403e580, topicName=囊性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=926927300775, createdName=wolongzxh, createdTime=Tue Aug 25 20:12:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417933, encodeId=a8dd141e93330, content=<a href='/topic/show?id=4b711839233' target=_blank style='color:#2F92EE;'>#Vertex#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18392, encryptionId=4b711839233, topicName=Vertex)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4e443309191, createdName=liuli5080, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621464, encodeId=8106162146488, content=<a href='/topic/show?id=559c104056d' target=_blank style='color:#2F92EE;'>#Kalydeco#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10405, encryptionId=559c104056d, topicName=Kalydeco)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d49420270114, createdName=windight, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=)]
    2015-03-22 liuli5080
  4. [GetPortalCommentsPageByObjectIdResponse(id=1839366, encodeId=5ef1183936667, content=<a href='/topic/show?id=341ae311ea' target=_blank style='color:#2F92EE;'>#FDA批准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7311, encryptionId=341ae311ea, topicName=FDA批准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=bugit, createdTime=Sat May 30 12:12:00 CST 2015, time=2015-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1675815, encodeId=bb1b16e5815c9, content=<a href='/topic/show?id=7395403e580' target=_blank style='color:#2F92EE;'>#囊性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40375, encryptionId=7395403e580, topicName=囊性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=926927300775, createdName=wolongzxh, createdTime=Tue Aug 25 20:12:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417933, encodeId=a8dd141e93330, content=<a href='/topic/show?id=4b711839233' target=_blank style='color:#2F92EE;'>#Vertex#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18392, encryptionId=4b711839233, topicName=Vertex)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4e443309191, createdName=liuli5080, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621464, encodeId=8106162146488, content=<a href='/topic/show?id=559c104056d' target=_blank style='color:#2F92EE;'>#Kalydeco#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10405, encryptionId=559c104056d, topicName=Kalydeco)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d49420270114, createdName=windight, createdTime=Sun Mar 22 00:12:00 CST 2015, time=2015-03-22, status=1, ipAttribution=)]
    2015-03-22 windight

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