Blood:Floteuzumab挽救治疗免疫治疗难治性急性髓系白血病

2020-10-17 星云 MedSci原创

虽然白血病的治疗在不断改进,但约50%的急性髓系白血病(AML)患者对诱导治疗无反应(原发诱导失败,PIF)或在诱导缓解后6个月内复发(早期复发,ER)。

虽然白血病的治疗在不断改进,但约50%的急性髓系白血病(AML)患者对诱导治疗无反应(原发诱导失败,PIF)或在诱导缓解后6个月内复发(早期复发,ER)。

近期,Uy Geoffrey L等人发现免疫浸润性肿瘤微环境(TME)与对以阿糖胞苷为基础的化疗的耐药性有关,还与对靶向CD3ε和CD123的双特异性DART抗体的反应性有关。

这是一项多中心、开放标签、1/2期临床试验,旨在评估flotetuzumab用于复发性/难治性AML成人患者的疗效和安全性。招募了88例AML患者,42例进入剂量发现阶段,46例接受推荐的2期剂量(RP2D),500 ng/kg·日。

Fletuzumab的给药剂量和方案

与fletuzumab的作用模式一致,最常见的不良事件是输液相关反应(IRR)/细胞因子释放综合征(CRS),多为1-2级。在第1周分步给药、预防性应用地塞米松、迅速使用托珠单抗和临时减少/中断剂量成功地预防了严重的IRR/CRS,获得了可接受的耐受性。免疫浸润性TME的PIF/ER AML患者,临床受益增加。

8位接受RP2D治疗的PIF/ER AML患者获得缓解

30例接受RP2D治疗的PIF/ER患者,CR/CRH率为26.7%,总有效率(CR/CRH/CRI)为30.0%。中位OS为10.2个月(1.87~27.27),6个月和12个月生存率分别为75%(95%CI,0.450~1.05)和50%(95%CI,0.154~0.846)。

与flotetuzumab应答最相关的10个基因的表达

骨髓转录学分析显示,简单的10基因特征即可预测患者对flotetuzumab的完全应答(AUROC=0.904,而ELN风险分类器为0.672)。

综上,Floteuzumab代表了一种创新的实验方法,与PIF/ER AML患者可接受的安全性和令人鼓舞的活性证据相关。

原始出处:

Uy Geoffrey L,Aldoss Ibrahim,Foster Matthew C et al. Flotetuzumab as Salvage Immunotherapy for Refractory Acute Myeloid Leukemia.[J] .Blood, 2020, undefined: undefined.

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    2021-08-07 snf701207
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    2020-10-19 1244c0ebm28暂无昵称

    学习学习

    0

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  6. [GetPortalCommentsPageByObjectIdResponse(id=1822107, encodeId=fa47182210e08, content=<a href='/topic/show?id=ee4b1021266e' target=_blank style='color:#2F92EE;'>#髓系白血病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102126, encryptionId=ee4b1021266e, topicName=髓系白血病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b79433, createdName=fangcong, createdTime=Sat Apr 24 22:32:24 CST 2021, time=2021-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1912459, encodeId=44901912459c6, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25e7304, createdName=snf701207, createdTime=Sat Aug 07 11:32:24 CST 2021, time=2021-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1985162, encodeId=e66b1985162b3, content=<a href='/topic/show?id=1e66e509f7' target=_blank style='color:#2F92EE;'>#FLOT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7509, encryptionId=1e66e509f7, topicName=FLOT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=99cf2500102, createdName=zjshifan_98647306, createdTime=Wed May 26 21:32:24 CST 2021, time=2021-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=893125, encodeId=a8a4893125ca, content=学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e8212476654, createdName=1244c0ebm28暂无昵称, createdTime=Mon Oct 19 18:26:09 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1487836, encodeId=e931148e836d1, content=<a href='/topic/show?id=46385651633' target=_blank style='color:#2F92EE;'>#挽救治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56516, encryptionId=46385651633, topicName=挽救治疗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c02a8374760, createdName=drwjr, createdTime=Mon Oct 19 14:32:24 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528703, encodeId=93011528e03fa, content=<a href='/topic/show?id=74b798601a1' target=_blank style='color:#2F92EE;'>#难治性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98601, encryptionId=74b798601a1, topicName=难治性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1ef11916292, createdName=freve, createdTime=Mon Oct 19 14:32:24 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892779, encodeId=2753892e7946, content=keep studying, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/9iaAb4Jw2bbQql9icNGa5FjbmPicfSE7biaQIwz1AApCvib4HUmz3W6DibibX6BAgp4atWt9Qkox88aPJQY6GkvckxdfQ/132, createdBy=448e5312462, createdName=陈小凤, createdTime=Sun Oct 18 09:20:30 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892742, encodeId=5c8d892e424d, content=好好学习,天天向上!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6bed2482428, createdName=国基然, createdTime=Sun Oct 18 01:52:09 CST 2020, time=2020-10-18, status=1, ipAttribution=)]
    2020-10-19 freve
  7. [GetPortalCommentsPageByObjectIdResponse(id=1822107, encodeId=fa47182210e08, content=<a href='/topic/show?id=ee4b1021266e' target=_blank style='color:#2F92EE;'>#髓系白血病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102126, encryptionId=ee4b1021266e, topicName=髓系白血病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b79433, createdName=fangcong, createdTime=Sat Apr 24 22:32:24 CST 2021, time=2021-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1912459, encodeId=44901912459c6, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25e7304, createdName=snf701207, createdTime=Sat Aug 07 11:32:24 CST 2021, time=2021-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1985162, encodeId=e66b1985162b3, content=<a href='/topic/show?id=1e66e509f7' target=_blank style='color:#2F92EE;'>#FLOT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7509, encryptionId=1e66e509f7, topicName=FLOT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=99cf2500102, createdName=zjshifan_98647306, createdTime=Wed May 26 21:32:24 CST 2021, time=2021-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=893125, encodeId=a8a4893125ca, content=学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e8212476654, createdName=1244c0ebm28暂无昵称, createdTime=Mon Oct 19 18:26:09 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1487836, encodeId=e931148e836d1, content=<a href='/topic/show?id=46385651633' target=_blank style='color:#2F92EE;'>#挽救治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56516, encryptionId=46385651633, topicName=挽救治疗)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c02a8374760, createdName=drwjr, createdTime=Mon Oct 19 14:32:24 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528703, encodeId=93011528e03fa, content=<a href='/topic/show?id=74b798601a1' target=_blank style='color:#2F92EE;'>#难治性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98601, encryptionId=74b798601a1, topicName=难治性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1ef11916292, createdName=freve, createdTime=Mon Oct 19 14:32:24 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892779, encodeId=2753892e7946, content=keep studying, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/9iaAb4Jw2bbQql9icNGa5FjbmPicfSE7biaQIwz1AApCvib4HUmz3W6DibibX6BAgp4atWt9Qkox88aPJQY6GkvckxdfQ/132, createdBy=448e5312462, createdName=陈小凤, createdTime=Sun Oct 18 09:20:30 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892742, encodeId=5c8d892e424d, content=好好学习,天天向上!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6bed2482428, createdName=国基然, createdTime=Sun Oct 18 01:52:09 CST 2020, time=2020-10-18, status=1, ipAttribution=)]
    2020-10-18 陈小凤

    keep studying

    0

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    2020-10-18 国基然

    好好学习,天天向上!

    0

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