PLoS One:乙肝新药2a期临床出色,有望带来功能性治愈

2017-05-25 佚名 药明康德

近日,位于马萨诸塞州的Spring Bank Pharmaceuticals宣布,其在研新药SB 9200在治疗慢性乙肝的2a期临床中取得了出色的成果,这也有望将这一新药推进到临床的下一个阶段。乙肝是一种影响广泛的肝脏疾病。据世界卫生组织估计,全世界范围有2.4亿人慢性感染乙型肝炎,每年有超过78万人死于乙型肝炎并发症,包括肝硬化和肝癌。中国是一个乙肝感染大国,全国至少有1亿慢性乙型肝炎病毒(HB

近日,位于马萨诸塞州的Spring Bank Pharmaceuticals宣布,其在研新药SB 9200在治疗慢性乙肝的2a期临床中取得了出色的成果,这也有望将这一新药推进到临床的下一个阶段。

乙肝是一种影响广泛的肝脏疾病。据世界卫生组织估计,全世界范围有2.4亿人慢性感染乙型肝炎,每年有超过78万人死于乙型肝炎并发症,包括肝硬化和肝癌。中国是一个乙肝感染大国,全国至少有1亿慢性乙型肝炎病毒(HBV)感染者,而且乙肝发病率还在持续上升。慢性乙型肝炎至今尚未找到彻底治愈的药物,严重威胁着患者的健康。然而,目前患者能使用的乙肝治疗手段却相对有限,因此,无论是患者还是业界,都热切期盼能有全新的乙肝新药上市。

由Spring Bank研发的SB 9200是一款全新的小分子核酸杂交(small molecule nucleic acid hybrid)化合物,它有潜力激活RIG-I蛋白与NOD2蛋白,并在被病毒感染的细胞内启动干扰素介导的抗病毒免疫反应。此外,它还能抑制病毒的聚合酶合成核酸。因此,SB 9200有望能作为单独疗法或联合疗法,治疗慢性乙肝。


▲SB 9200的作用机理(图片来源:Spring Bank)

在一项2a期临床试验中,研究人员评估了SB 9200的疗效与安全性。试验里,研究人员招募了20名初治,尚未出现肝硬化的慢性乙肝患者,并将他们随机分为两组,一组每日接受25毫克 SB 9200的治疗,另一组则接受安慰剂。整个试验时长为12周。

结果表明,与安慰剂相比,SB 9200在总体上显着降低了乙肝的DNA水平。而在降低乙肝表面抗原(HBsAg)水平的评估中,接受SB 9200的患者有31%出现了降低,对照组中则无一人出现降低。此外,它的总体安全性良好。在为期12周的试验中,没有出现任何严重的副作用。

“SB 9200的安全性结果以及在低剂量下的抗病毒能力让我们感到非常振奋,”Spring Bank的首席医学官Nezam Afdhal博士说:“这些结果进一步表明SB 9200有望成为一种慢性乙肝的新疗法,并带来功能性上的治愈。我们已经开始招募这项2a期临床试验的第二组患者,希望它能在今年第四季度带来好结果。”

“我们的病毒学研究表明SB 9200参与到了一种全新的免疫反应中,并能通过靶向RIG-I,直接起抗病毒的作用,”这项临床试验的主要负责人Stephen Locarnini博士说:“这不但能减少乙肝病毒的DNA,还能减少乙肝表面抗原,以及乙肝病毒的pgRNA。”

按Spring Bank官方提供的信息,清除乙肝表面抗原,就意味着乙肝感染得到了功能性的治愈。我们期待听到这款乙肝新药的更多好结果,并祝愿患者们能得到更多治疗乙肝的出色方案。

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    2018-03-03 xlxchina
  4. [GetPortalCommentsPageByObjectIdResponse(id=1789969, encodeId=b7981e899694a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Mon Jul 17 08:33:00 CST 2017, time=2017-07-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2036329, encodeId=ba972036329af, content=<a href='/topic/show?id=2a3f2343353' target=_blank style='color:#2F92EE;'>#乙肝新药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23433, encryptionId=2a3f2343353, topicName=乙肝新药)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=62a7397, createdName=charl1234567, createdTime=Wed Nov 22 12:33:00 CST 2017, time=2017-11-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1915425, encodeId=2200191542567, content=<a href='/topic/show?id=22a1328e7e5' target=_blank style='color:#2F92EE;'>#功能性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32877, encryptionId=22a1328e7e5, topicName=功能性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=570f404, createdName=xlxchina, createdTime=Sat Mar 03 02:33:00 CST 2018, time=2018-03-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=206468, encodeId=eafc2064683d, content=期望啊。, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=aa562069713, createdName=1361efd61am, createdTime=Sun Jun 04 17:42:39 CST 2017, time=2017-06-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=202430, encodeId=acf3202430b3, content=不错,拭目以待!, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu May 25 13:47:25 CST 2017, time=2017-05-25, status=1, ipAttribution=)]
    2017-06-04 1361efd61am

    期望啊。

    0

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    2017-05-25 半夏微凉

    不错,拭目以待!

    0

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