Agios急性髓细胞白血病新药AG-120一期临床效果显著

2014-12-08 佚名 生物谷

Agios制药近日宣布,该公司的创新药物AG-120(异柠檬酸脱氢酶突变蛋白抑制剂)在急性髓细胞白血病(AML)患者的早期试验中取得了极为显著的疗效。在最近的西班牙巴塞罗那举行的欧洲癌症研究与治疗组织(EORTC)年会上,科罗拉多大学的研究团队组长Daniel Pollyea表示,每一个剂量组的患者都得到完全缓解,这个数据让团队非常激动。 Pollyea认为尽管目前试验处于非常早期的阶段(P

Agios制药近日宣布,该公司的创新药物AG-120(异柠檬酸脱氢酶突变蛋白抑制剂)在急性髓细胞白血病(AML)患者的早期试验中取得了极为显著的疗效。在最近的西班牙巴塞罗那举行的欧洲癌症研究与治疗组织(EORTC)年会上,科罗拉多大学的研究团队组长Daniel Pollyea表示,每一个剂量组的患者都得到完全缓解,这个数据让团队非常激动。

Pollyea认为尽管目前试验处于非常早期的阶段(Phase I,剂量组试验),而且受试者人数也很少(17人),但是结果却是非常轰动的。异柠檬酸脱氢酶(IDH)将会成为治疗AML极为有效的靶点。靶点IDH可以分为两类,一类是在细胞质中发现的IDH1,一类是在线粒体中发现的IDH2。AG-120是一种口服剂,它能够强烈地选择性抑制IDH1癌基因突变位点,该突变在大多数AML患者(6-10%)和骨髓增生异常综合征(MDS)患者(3—6%)中都能发现。

I期临床试验的受试者为具有IDH1变异的AML或 MDS患者,仅仅观察疗效而不深入到肿瘤反应,Pollyea认为AG-120是有效的。和基线相比,可以观察到98%的病人的2-羟戊二酸(2HG)水平有所下降。

反应在治疗的早期就会出现,并且持续期长,最早在两周内就会有效果。Pollyea认为,对于那些容易复发、治疗难度大的AML患者而言,仅服用一个疗程、并且在3—5个月内就会产生明显疗效是非常难得的。

英国弗里曼医院的Ruth Plummer也极为看好这一早期成果,他强调,IDH酶是癌症代谢基因突变最频繁的一种,AG-120不仅会在机制上减少癌细胞的生成,而且是针对该突变非常有用的生物标志物。


相关英文推荐:

Agios early-stage AML drug shines

Agios Pharmaceuticals’ AG-120, a first-in-class inhibitor of the IDH1 mutant protein has shown remarkable efficacy in an early-stage trial in patients with acute myeloid leukaemia.

“We’re very excited to report these clinical responses,” said lead investigator Daniel Pollyea of University of Colorado. “We’ve had a complete remission in every single dose cohort.” Dr Pollyea reported his results at the recent EORTC meeting in Barcelona, Spain.

Granted the work is very early (a Phase I, dose-ranging study) and the enrollment is small (N=17), but the responses observed were striking. “Isocitrate dehydrogenase (IDH) is one of the most promising targets in AML,” Dr Pollyea said.

The target, IDH, comes in two flavours - IDH1, found in the cell’s cytoplasm, and IDH2, found in the mitochondria. AG-120, an oral agent, is a potent, selective inhibitor of the IDH1 oncogenic mutation found in a significant minority of AML (6-10%) and myelodysplastic syndromes (3-6%) patients,” explained Dr Pollyea.

The Phase I study enrolled AML or MDS patients with the IDH1 mutation and in terms of efficacy, without even looking at tumour response, Dr Pollyea knew that the drug was at least working mechanistically. Patients were observed to have upwards of a 98% reduction in 2-hydroxyglutarate (2HG) plasma levels as compared to baseline.

Responses were also early and durable, with the earliest noted at two weeks. Dr Pollyea added that “for a relapse and refractory AML population, taking a single agent and having responses of 3-5 months is quite impressive.”

Ruth Plummer, from Freeman Hospital in Newcastle-upon-Tyne, UK, was also bullish about the early results, noting that IDH enzymes “are among the most frequently mutated metabolic genes in cancer. Not only is this drug mechanistically useful in reducing the production of tumour cells, it’s also an extremely useful biomarker for the mutation”.

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (3)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1822158, encodeId=df0d18221580c, content=<a href='/topic/show?id=b8611021308a' target=_blank style='color:#2F92EE;'>#髓细胞白血病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102130, encryptionId=b8611021308a, topicName=髓细胞白血病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a9de34, createdName=shenxlcyp, createdTime=Thu Jan 15 11:53:00 CST 2015, time=2015-01-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1468163, encodeId=7ee51468163d0, content=<a href='/topic/show?id=71c810212946' target=_blank style='color:#2F92EE;'>#髓细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102129, encryptionId=71c810212946, topicName=髓细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=69e46898758, createdName=chengjn, createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1484468, encodeId=885a148446800, content=<a href='/topic/show?id=889e2284233' target=_blank style='color:#2F92EE;'>#临床效果#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22842, encryptionId=889e2284233, topicName=临床效果)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9fab7968641, createdName=12498d2fm53(暂无昵称), createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1822158, encodeId=df0d18221580c, content=<a href='/topic/show?id=b8611021308a' target=_blank style='color:#2F92EE;'>#髓细胞白血病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102130, encryptionId=b8611021308a, topicName=髓细胞白血病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a9de34, createdName=shenxlcyp, createdTime=Thu Jan 15 11:53:00 CST 2015, time=2015-01-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1468163, encodeId=7ee51468163d0, content=<a href='/topic/show?id=71c810212946' target=_blank style='color:#2F92EE;'>#髓细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102129, encryptionId=71c810212946, topicName=髓细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=69e46898758, createdName=chengjn, createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1484468, encodeId=885a148446800, content=<a href='/topic/show?id=889e2284233' target=_blank style='color:#2F92EE;'>#临床效果#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22842, encryptionId=889e2284233, topicName=临床效果)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9fab7968641, createdName=12498d2fm53(暂无昵称), createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=)]
    2014-12-10 chengjn
  3. [GetPortalCommentsPageByObjectIdResponse(id=1822158, encodeId=df0d18221580c, content=<a href='/topic/show?id=b8611021308a' target=_blank style='color:#2F92EE;'>#髓细胞白血病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102130, encryptionId=b8611021308a, topicName=髓细胞白血病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a9de34, createdName=shenxlcyp, createdTime=Thu Jan 15 11:53:00 CST 2015, time=2015-01-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1468163, encodeId=7ee51468163d0, content=<a href='/topic/show?id=71c810212946' target=_blank style='color:#2F92EE;'>#髓细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102129, encryptionId=71c810212946, topicName=髓细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=69e46898758, createdName=chengjn, createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1484468, encodeId=885a148446800, content=<a href='/topic/show?id=889e2284233' target=_blank style='color:#2F92EE;'>#临床效果#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22842, encryptionId=889e2284233, topicName=临床效果)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9fab7968641, createdName=12498d2fm53(暂无昵称), createdTime=Wed Dec 10 06:53:00 CST 2014, time=2014-12-10, status=1, ipAttribution=)]

相关资讯

Blood: 大样本急性髓细胞白血病分析结果发表

  陈赛娟院士领导的研究组在1185例急性髓细胞白血病(AML)患者中探索了基因突变和预后的相关性。这是科学家首次发表中国大样本急性髓细胞白血病分析结果,为进一步进行风险调整治疗及靶向治疗打下了基础。研究论文日前发表于《血液》(Blood)杂志。   急性髓细胞白血病是一组临床表现及预后转归差异很大的疾病,尽管细胞遗传学是其独立的预后标志,但约有半数以上的急性髓细胞白血病缺乏特征性的染色体变化。

大样本急性髓细胞白血病分析结果

来源:新华网   陈赛娟院士领导的研究组在1185例急性髓细胞白血病(AML)患者中探索了基因突变和预后的相关性。这是科学家首次发表中国大样本急性髓细胞白血病分析结果,为进一步进行风险调整治疗及靶向治疗打下了基础。研究论文日前发表于《血液》(Blood)杂志。   急性髓细胞白血病是一组临床表现及预后转归差异很大的疾病,尽管细胞遗传学是其独立的预后标志,但约有半数以上的急性髓细胞白血病缺乏特征

Nature:FLT3突变成急性髓细胞白血病治疗靶标

根加州大学旧金山分校(UCSF)Helen Diller Family癌症综合中心医生科学家领导完成的一项研究证实:治疗人类白血病中最常见的类型之一急性髓细胞性白血病关键可能在于FLT3基因的突变。 本周发表在《自然》杂志上的研究证明FLT3基因的激活突变可以作为急性髓细胞白血病治疗的靶标,以此靶标可开发出新的药物。 加州大学旧金山分校综合癌症中心Neil Shah博士说:这些突变对白血病细胞

Cell Mol Life Sci:急性髓细胞白血病中VEGF信号

近日,一项最新研究论文阐明了血管内皮生长因子信号(VEGF)在急性髓细胞白血病(AML)中的相关作用。在AML患者骨髓中血管内皮生长因子信号是异常的,其与癌症患者预后较差有关。信号转导通路的改变表现为存在多个自分泌和旁分泌信号通路共同干预。 血管内皮生长因子信号促进急性髓细胞白血病细胞增殖、生存以及抵抗化疗,产生耐药性。此外在急性髓细胞白血病中,血管内皮生长因子信号可以调解血管内皮细胞的旁分泌控

药物应用:Plerixafor增强AML化疗效果

      华盛顿大学医学院的研究人员证实,由健赞(Genzym)公司研制的干细胞动员剂plerixafor能使急性髓细胞白血病(acute myeloid leukemia,AML)患者的化疗更加有效。这种药物通过驱使白血病细胞进入血液来阻止它们与骨髓的结合,在血液中,这些细胞更易受到化疗药物的攻击。   (医脉通配图)