NEJM:重症血友病A患者的AAV5-VIII因子基因治疗

2017-12-28 zhangfan MedSci原创

研究认为,人源B结构域删除的VIII因子基因治疗可使得重症血友病A患者实现临床治愈,所患者实现止血稳定且VIII因子使用显著减少

血友病患者依赖外源性VIII因子治疗用于预防关节、软组织和中枢神经系统出血。尽管血友病B患者的基因治疗已经实现,但血友病A患者由于VIII因子编码区因素,基因治疗尚存在较大问题。

研究人员利用血清5型腺病毒 (AAV 5)为载体,对9名重症血友病A型患者进行人源B结构域删除的VIII因子治疗(AAV5-hFVIII-SQ),患者基因剂量分为低中高三等,治疗持续52周。

低中剂量组VIII因子的活性水平为3 IU或以下,高剂量组VIII因子的活性水平在5 IU以上。在高剂量组中,治疗2-9周后,7名患者中的6人,VIII因子水平正常化(>50 IU),治疗停止后1年仍效果保持。所有参与者在治疗22周后均停止治疗,高剂量组中,平均年出血率从研究前的16起下降到治疗后的1起。主要不良事件为血清丙氨酸转氨酶水平升高,1名患者出现慢性关节病加重。未检测到VIII因子中和抗体。

研究认为,人源B结构域删除的VIII因子基因治疗可使得重症血友病A患者实现临床治愈,所患者实现止血稳定且VIII因子使用显著减少。

原始出处:

Savita Rangarajan et al. AAV5-Factor VIII Gene Transfer in Severe Hemophilia A. N Engl J Med. December 28 2017.

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    2018-06-30 juliusluan78
  3. [GetPortalCommentsPageByObjectIdResponse(id=1668830, encodeId=84ff166883042, content=<a href='/topic/show?id=fdea18432f3' target=_blank style='color:#2F92EE;'>#VIII因子#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18432, encryptionId=fdea18432f3, topicName=VIII因子)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=aa4f26457969, createdName=liye789132260, createdTime=Sat Jan 06 17:10:00 CST 2018, time=2018-01-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1915985, encodeId=80fc191598560, content=<a href='/topic/show?id=c5a89550ff' target=_blank style='color:#2F92EE;'>#III#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9550, encryptionId=c5a89550ff, topicName=III)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e68e415, createdName=juliusluan78, createdTime=Sat Jun 30 20:10:00 CST 2018, time=2018-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1271858, encodeId=6ebd12e18581a, content=<a href='/topic/show?id=9fef169483' target=_blank style='color:#2F92EE;'>#AAV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1694, encryptionId=9fef169483, topicName=AAV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8ba7103, createdName=xuqianhua, createdTime=Sat Dec 30 01:10:00 CST 2017, time=2017-12-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=273223, encodeId=ab292e322336, content=客观性.公正性.讲得很不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Thu Dec 28 12:22:43 CST 2017, time=2017-12-28, status=1, ipAttribution=)]
    2017-12-30 xuqianhua
  4. [GetPortalCommentsPageByObjectIdResponse(id=1668830, encodeId=84ff166883042, content=<a href='/topic/show?id=fdea18432f3' target=_blank style='color:#2F92EE;'>#VIII因子#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18432, encryptionId=fdea18432f3, topicName=VIII因子)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=aa4f26457969, createdName=liye789132260, createdTime=Sat Jan 06 17:10:00 CST 2018, time=2018-01-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1915985, encodeId=80fc191598560, content=<a href='/topic/show?id=c5a89550ff' target=_blank style='color:#2F92EE;'>#III#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9550, encryptionId=c5a89550ff, topicName=III)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e68e415, createdName=juliusluan78, createdTime=Sat Jun 30 20:10:00 CST 2018, time=2018-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1271858, encodeId=6ebd12e18581a, content=<a href='/topic/show?id=9fef169483' target=_blank style='color:#2F92EE;'>#AAV#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1694, encryptionId=9fef169483, topicName=AAV)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8ba7103, createdName=xuqianhua, createdTime=Sat Dec 30 01:10:00 CST 2017, time=2017-12-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=273223, encodeId=ab292e322336, content=客观性.公正性.讲得很不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Thu Dec 28 12:22:43 CST 2017, time=2017-12-28, status=1, ipAttribution=)]
    2017-12-28 虈亣靌

    客观性.公正性.讲得很不错

    0

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