JCO:CRPC患者:低剂量阿比特龙+低脂饮食 疗效可与标准方法媲美?

2018-04-23 王淳 环球医学

2018年3月,发表在《J Clin Oncol》的一项由美国和新加坡科学家进行的前瞻性、随机2期研究,考察了低剂量阿比特龙+食物vs标准剂量阿比特龙在去势抵抗性前列腺癌(CRPC)中的非劣效性。

2018年3月,发表在《J Clin Oncol》的一项由美国和新加坡科学家进行的前瞻性、随机2期研究,考察了低剂量阿比特龙+食物vs标准剂量阿比特龙在去势抵抗性前列腺癌(CRPC)中的非劣效性。

目的:醋酸阿比特龙酯(AA)是转移性去势抵抗性前列腺癌(CRPC)的标准治疗方法。尽管具有较大的食物影响,但是在其关键试验中,AA常在空腹状态下给药。研究人员旨在检验假设,即低剂量AA(LOW;250mg+低脂饮食)与标准AA(STD;1000mg空腹)在CRPC患者中的活性相当。

患者和方法:来自于美国和新加坡7家机构的72例进行性CRPC患者随机分配到STD或LOW组中。两组都接受泼尼松5mg每天两次。每月评估前列腺特异性抗原(PSA),每12周使用疾病负担的影像学评估检测睾酮/硫酸脱氢表雄酮。收集血浆测量药物浓度。PSA的对数改变作为有效性的药效学生物标志物为首要终点,并使用非劣效性设计。无进展生存期(PFS)、PSA应答(降低≥50%)、雄激素水平的改变、药物代谢动力学为次要终点。

结果:每组有36例患者。12周时,LOW组(平均对数改变,-1.59)比STD组(-1.19)对PSA的影响大,根据预先定义的标准明确了LOW的非劣效性。LOW和STD组的PSA应答率分别为58%和50%,两组中位PFS将近9个月。两组雄激素水平降低相似。虽然PSA应答或PFS无差异,但是阿比特龙浓度在STD组中较高。

结论:在PSA衡量尺度上,低剂量AA(低脂早餐)非劣效于标准剂量AA。由于药物经济学影响,这些数据需要处方者、付费者和患者予以考虑。需要额外的研究来评估该方法的长期有效性。

原始出处:

G. A. Gignac, M. J. Morris, G. Heller, et al. A model assessing how variable timing of outcome assessments impacts progression-free survival (PFS). J Clin Oncol, 2018.

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    2018-06-21 lidong40
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    2018-04-25 rebeccajiejie
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1891507, encodeId=683b189150ef8, content=<a href='/topic/show?id=25b0102e2df' target=_blank style='color:#2F92EE;'>#JCO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10272, encryptionId=25b0102e2df, topicName=JCO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6da1120, createdName=lidong40, createdTime=Thu Jun 21 19:49:00 CST 2018, time=2018-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1269601, encodeId=cbc112696011f, content=<a href='/topic/show?id=ca6952e52f' target=_blank style='color:#2F92EE;'>#CRP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5275, encryptionId=ca6952e52f, topicName=CRP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e1cc90, createdName=rebeccajiejie, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1390638, encodeId=c047139063893, content=<a href='/topic/show?id=4fb326339ad' target=_blank style='color:#2F92EE;'>#低脂饮食#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26339, encryptionId=4fb326339ad, topicName=低脂饮食)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b78f2500065, createdName=12498761m56暂无昵称, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480492, encodeId=af861480492a4, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569850, encodeId=685a156985088, content=<a href='/topic/show?id=bc1352e951' target=_blank style='color:#2F92EE;'>#CRPC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5279, encryptionId=bc1352e951, topicName=CRPC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5daa15584462, createdName=flyingeagle82, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=308769, encodeId=f717308e695d, content=了解一下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Apr 24 07:48:40 CST 2018, time=2018-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1031732, encodeId=49d01031e32bc, content=谢谢梅斯提供这么好的信息,学到很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Mon Apr 23 18:49:00 CST 2018, time=2018-04-23, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1891507, encodeId=683b189150ef8, content=<a href='/topic/show?id=25b0102e2df' target=_blank style='color:#2F92EE;'>#JCO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10272, encryptionId=25b0102e2df, topicName=JCO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6da1120, createdName=lidong40, createdTime=Thu Jun 21 19:49:00 CST 2018, time=2018-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1269601, encodeId=cbc112696011f, content=<a href='/topic/show?id=ca6952e52f' target=_blank style='color:#2F92EE;'>#CRP#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5275, encryptionId=ca6952e52f, topicName=CRP)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e1cc90, createdName=rebeccajiejie, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1390638, encodeId=c047139063893, content=<a href='/topic/show?id=4fb326339ad' target=_blank style='color:#2F92EE;'>#低脂饮食#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26339, encryptionId=4fb326339ad, topicName=低脂饮食)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b78f2500065, createdName=12498761m56暂无昵称, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1480492, encodeId=af861480492a4, content=<a href='/topic/show?id=647d2615939' target=_blank style='color:#2F92EE;'>#低剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=26159, encryptionId=647d2615939, topicName=低剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=97b17641126, createdName=ms1292405679162969, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569850, encodeId=685a156985088, content=<a href='/topic/show?id=bc1352e951' target=_blank style='color:#2F92EE;'>#CRPC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5279, encryptionId=bc1352e951, topicName=CRPC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5daa15584462, createdName=flyingeagle82, createdTime=Wed Apr 25 06:49:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=308769, encodeId=f717308e695d, content=了解一下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Apr 24 07:48:40 CST 2018, time=2018-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1031732, encodeId=49d01031e32bc, content=谢谢梅斯提供这么好的信息,学到很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Mon Apr 23 18:49:00 CST 2018, time=2018-04-23, status=1, ipAttribution=)]
    2018-04-24 kafei

    了解一下谢谢

    0

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    2018-04-23 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

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CLIN CANCER RES:前列腺癌患者前列腺内阿比特龙水平和SLCO基因变化与病理反应有关

SLCO基因改变会影响细胞类固醇摄取,与前列腺癌结局有关。CYP17A抑制剂阿比特龙也有类固醇结构,SLCO编码的受体可能影响其转运,SLCO基因改变可能会影响细胞内阿比特龙水平并影响其疗效。CLIN CANCER RES近期发表了一篇文章,研究SLCO基因是否对阿比特龙摄取产生影响。

J Clin Oncol:不禁食也可使用阿比特龙,剂量还更低?

醋酸阿比特龙(AA)是转移性去势抵抗性前列腺癌(CRPC)的标准护理药物。食物效应很大,AA在关键试验中是在禁食条件下施用的。