Clin Cancer Res:地西他滨联合PARP抑制剂他唑帕尼治疗难治性/复发性急性髓性白血病

2022-02-24 xiaozeng MedSci原创

地西他滨/他唑帕尼联合使用在复发性/难治性 AML 患者中的耐受性良好,而且有初步的抗肿瘤活性

不适合强化化疗或对强化化疗有耐药性的急性髓性白血病 (AML) 患者通常使用 DNA 甲基转移酶抑制剂 (DNMTi) 治疗。新的药物联合方案或可增加疗效。除了使 CpG 岛基因启动子区域去甲基化,DNMTi 还可增强 PARP1 的招募和与染色质的紧密结合,从而阻断 PARP 介导的 DNA 修复,进而下调同源重组 (HR) DNA 修复,最终增加肿瘤细胞对 PARP 抑制剂(PARPi)的敏感性。

Maria 等研究人员既往已在体内外证实了 DNMTi 和 PARPi 联合使用在 AML 中的效果。在本研究中,Maria 等研究人员在复发性或难治性 AML 患者中探索了 DNMTi 地西他滨和 PARPi 他唑帕尼联合使用时推荐的2期剂量,以及初始活性和安全性。

剂量递增方案

招募了年满 18 岁的明确诊断的经既往治疗后进展或难治性的、且对强化化疗不耐受或不敏感的 AML 患者。28天为一疗程,每疗程连续5-10天予以地西他滨,每疗程的第1天予以他唑帕尼。并在第1天(预处理)、第5天和第8天进行药效学分析。

共招募了 25 位患者,其中 22 位既往接受过 DNMTi 治疗。受试患者被分成了 7 个队列,采用剂量递增的3+3设计。推荐的 2 期两联合剂量方案是:连续予以地西他滨(20 mg/m2)5-10天+每疗程的第 1 天予以他唑帕尼(1 mg),28天为一疗程。

非血液学副作用

3-5级的副反应有发热(19例)和肺部感染(15例)。两位患者(8%)获得了细胞计数不完全恢复的完全缓解,另有三位患者的血液学有所改善

所有患者的治疗反应

药效学分析证实了预期的 DNA 去甲基化、染色质 PARP 捕获增加、γH2AX 位点增多和缓解者的 HR 活性降低。与20 mg/m2地西他滨联合使用时,γH2AX 位点随着他唑帕尼剂量的增加而增多。

综上,地西他滨/他唑帕尼联合使用在复发性/难治性 AML 患者中的耐受性良好,而且有初步的抗肿瘤活性,值得进一步研究。

原始出处:

Maria R. Baer, et al. Phase I Clinical Trial of DNA Methyltransferase Inhibitor Decitabine and PARP Inhibitor Talazoparib Combination Therapy in Relapsed/Refractory Acute Myeloid Leukemia. Clin Cancer Res (2022). https://doi.org/10.1158/1078-0432.CCR-21-3729

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    2022-12-09 jklm09
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    2022-02-28 ms5833112425946735

    学习了

    0

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    2022-02-27 ms3000000376140643

    学习学习

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1909958, encodeId=7ed6190995814, content=<a href='/topic/show?id=8f1f42518d8' target=_blank style='color:#2F92EE;'>#复发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42518, encryptionId=8f1f42518d8, topicName=复发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Mon Jun 13 05:20:08 CST 2022, time=2022-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852896, encodeId=8a5518528966e, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri Dec 09 20:20:08 CST 2022, time=2022-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1214529, encodeId=61b112145292b, content=<a href='/topic/show?id=2d4c4140296' target=_blank style='color:#2F92EE;'>#地西他滨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41402, encryptionId=2d4c4140296, topicName=地西他滨)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Tue Apr 26 13:53:19 CST 2022, time=2022-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1198024, encodeId=d6aa119802412, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3db1761596, createdName=ms5833112425946735, createdTime=Mon Feb 28 14:55:14 CST 2022, time=2022-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1197761, encodeId=bd31119e761c2, content=学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=c40a6387446, createdName=ms3000000376140643, createdTime=Sun Feb 27 15:36:32 CST 2022, time=2022-02-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1514500, encodeId=e5901514500fa, content=<a href='/topic/show?id=1ae010211143' target=_blank style='color:#2F92EE;'>#髓性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102111, encryptionId=1ae010211143, topicName=髓性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae8810654266, createdName=more is better!, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528841, encodeId=af101528841d8, 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=39, 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=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621391, encodeId=f81e162139121, content=<a href='/topic/show?id=49b313e56ad' target=_blank style='color:#2F92EE;'>#PARP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13756, encryptionId=49b313e56ad, topicName=PARP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fd4d20248280, createdName=lishiwen, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1909958, encodeId=7ed6190995814, content=<a href='/topic/show?id=8f1f42518d8' target=_blank style='color:#2F92EE;'>#复发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42518, encryptionId=8f1f42518d8, topicName=复发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Mon Jun 13 05:20:08 CST 2022, time=2022-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852896, encodeId=8a5518528966e, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri Dec 09 20:20:08 CST 2022, time=2022-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1214529, encodeId=61b112145292b, content=<a href='/topic/show?id=2d4c4140296' target=_blank style='color:#2F92EE;'>#地西他滨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41402, encryptionId=2d4c4140296, topicName=地西他滨)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Tue Apr 26 13:53:19 CST 2022, time=2022-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1198024, encodeId=d6aa119802412, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3db1761596, createdName=ms5833112425946735, createdTime=Mon Feb 28 14:55:14 CST 2022, time=2022-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1197761, encodeId=bd31119e761c2, content=学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=c40a6387446, createdName=ms3000000376140643, createdTime=Sun Feb 27 15:36:32 CST 2022, time=2022-02-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1514500, encodeId=e5901514500fa, content=<a href='/topic/show?id=1ae010211143' target=_blank style='color:#2F92EE;'>#髓性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102111, encryptionId=1ae010211143, topicName=髓性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae8810654266, createdName=more is better!, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528841, encodeId=af101528841d8, 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=39, 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=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621391, encodeId=f81e162139121, content=<a href='/topic/show?id=49b313e56ad' target=_blank style='color:#2F92EE;'>#PARP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13756, encryptionId=49b313e56ad, topicName=PARP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fd4d20248280, createdName=lishiwen, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=)]
    2022-02-26 freve
  8. [GetPortalCommentsPageByObjectIdResponse(id=1909958, encodeId=7ed6190995814, content=<a href='/topic/show?id=8f1f42518d8' target=_blank style='color:#2F92EE;'>#复发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42518, encryptionId=8f1f42518d8, topicName=复发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Mon Jun 13 05:20:08 CST 2022, time=2022-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852896, encodeId=8a5518528966e, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri Dec 09 20:20:08 CST 2022, time=2022-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1214529, encodeId=61b112145292b, content=<a href='/topic/show?id=2d4c4140296' target=_blank style='color:#2F92EE;'>#地西他滨#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41402, encryptionId=2d4c4140296, topicName=地西他滨)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=病毒猎手, createdTime=Tue Apr 26 13:53:19 CST 2022, time=2022-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1198024, encodeId=d6aa119802412, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3db1761596, createdName=ms5833112425946735, createdTime=Mon Feb 28 14:55:14 CST 2022, time=2022-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1197761, encodeId=bd31119e761c2, content=学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=c40a6387446, createdName=ms3000000376140643, createdTime=Sun Feb 27 15:36:32 CST 2022, time=2022-02-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1514500, encodeId=e5901514500fa, content=<a href='/topic/show?id=1ae010211143' target=_blank style='color:#2F92EE;'>#髓性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102111, encryptionId=1ae010211143, topicName=髓性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae8810654266, createdName=more is better!, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528841, encodeId=af101528841d8, 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=39, 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=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1621391, encodeId=f81e162139121, content=<a href='/topic/show?id=49b313e56ad' target=_blank style='color:#2F92EE;'>#PARP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13756, encryptionId=49b313e56ad, topicName=PARP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fd4d20248280, createdName=lishiwen, createdTime=Sat Feb 26 13:20:08 CST 2022, time=2022-02-26, status=1, ipAttribution=)]
    2022-02-26 lishiwen

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