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本帖最后由 老马 于 2015-6-24 20:33 编辑
ALK抑制剂比较.rar
(2.04 MB, 下载次数: 487)
ALK耐药 TAT2015.pdf
(2.35 MB, 下载次数: 548)
Comparison of 3 ALK inhibitors’ phase 2 trials
http://alkinhibitors.com
All of these results are based on 5 phase 2 trials. However the conditions of each trial may differ in important ways. For example, it is my understanding that the trial for brigatinib was limited to healthier patients while the trial for ceritinib included almost every available patient. There may be other differences as well. Definitions for the acronyms are at the bottom.
While the data is similar to previously posted data, this data is more complete and up to date. They are also easier to compare.
Ceritinib
2 trials, one all Crizotinib resistant, the other all ALK inhibitor naive
Crizotinib resistant
patients 140
ORR 38.6%
DCR 77.1%
CNS ORR 33%
PFS 5.7 months
DOR 9.7 months
ALK inhibitor naive patients
patients 124
ORR 63.7%
DCR 89.5%
CNS ORR 58%
PFS 11.1 months
DOR 9.3 months
CNS metastases
“the ORR, DOR, and PFS for patients with brain metastases at baseline were similar with those reported for the overall population of these studies
Alectinib
2 studies both all Crizotinib resistant patients
. global U.S. & Canada
patients 138 87
ORR 50.0%. 47.8%
DCR 79.5% 79.7%
CNS ORR 57.1%. 68.8%
PFS 8.9 months 6.3 months
DOR 11.2 months 7.5 months
Brigatinib
One trial of 78 patients
Only healthier patients
Last patient enrolled July 2014
Median time on treatment = 12.6 months
Crizotinib resistant patients
patients 70
ORR 71%
PFS 13.4 months
DOR 9.3 months
ALK inhibitor naive patients
patients 8
ORR 100%
PFS not available yet
DOR not available yet
All patients with CNS metastases
ORR 53% of measurable
CNS PFS 15.6 months
CNS = central nervous system = the brain and spine
CNS ORR = objective response of tumors in CNS
DCR = disease control rate = ORR plus stable patients
DOR = duration of response = time from documentation of tumor response to disease progression
ORR = objective response rate = average shrinkage of 30% on longest dimensions of measured tumors in a CT or MRI scan
PFS = progression free survival = Time from randomization or study enrollment until disease progression or death |
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个人公众号:treeofhope
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[LV.1]初来乍到
马哥 调到置顶 会方便大家看 |
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AZD9291 in EGFR Inhibitor–Resistant Non–Small-Cell Lung Cancer.pdf
(666.69 KB, 下载次数: 402)
The T790M gatekeeper mutation in EGFR mediates resistance to low concentrations .pdf
(528.17 KB, 下载次数: 301)
Rociletinib in EGFR-Mutated Non–Small-Cell Lung Cancer.pdf
(537.3 KB, 下载次数: 283)
The allelic context of the C797S mutation acquired upon treatment with third gen.pdf
(871.34 KB, 下载次数: 268)
Covalent EGFR inhibitor analysis.pdf
(643.54 KB, 下载次数: 244)
Acquired EGFR C797S mutation.pdf
(1019.42 KB, 下载次数: 248)
EGFR mutations and resistance to Irreversible pyrimidine.pdf
(1.81 MB, 下载次数: 317)
Acquired Resistance of EGFR-Mutant Lung Cancer .pdf
(252.46 KB, 下载次数: 268)
Resistance to an Irreversible TKI.pdf
(1.06 MB, 下载次数: 292)
Afatinib T790M.pdf
(76.13 KB, 下载次数: 291)
EGFR联用.pdf
(1.03 MB, 下载次数: 597)
AZD 9291 TAT2015.pdf
(1.91 MB, 下载次数: 318)
HM61713 TAT2015.pdf
(505.45 KB, 下载次数: 296)
CO-1686 TAT2015.pdf
(997.59 KB, 下载次数: 271)
化疗后EGFR基因变化A.pdf
(215.49 KB, 下载次数: 348)
第一代EGFR耐药.pdf
(3.02 MB, 下载次数: 536)
化疗后EGFR基因变化B.pdf
(978.26 KB, 下载次数: 375)
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个人公众号:treeofhope
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学习了,Met梳理得很明晰,也与实际应用的结果很吻合。
现在仍含糊的是:1、EGFR抑制剂耐药后,有一半的发生T790M突变,另一半又是因为什么东西突变或扩增而使EGFR抑制剂耐药呢?2、有cMet扩增存在的EGFR抑制剂耐药的,为何INC280+易或特的效果不佳,不如T790突变而用4002+易或特,或9291,或9291+易或特那么样有效?是cMet抑制剂不行,还是别的什么原因? |
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我是肿瘤病人,不是肿瘤医生;我的一切意见仅供参考,千万别与正规医嘱等同。
欢迎光顾:(http://blog.sina.com.cn/u/5306366644)
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对EGFR突变病人来说,EGFR就是主干道,对于绝大多数EGFR突变病人,经过化疗,放疗,靶向药治疗,原发肿瘤的EGFR突变始终存在。
(1)EGFR 抑制剂主药失效再联合下游通路药只能取得短暂的效果,平均无进展时间只有2-3个月,因为抑制了一条通路,另一条通路就会激活,使用像多吉美、索坦这样的多靶点药,或者通路药联用,会抑制正常细胞,副作用太大,体外实验可以,而在临床上无法应用。
(2)提高剂量,或换同一种结构的EGFR药,无法解决耐药问题,但对于部分病人有临床好处。
(3)第三代EGFR药可以完全压制T790突变,在易,特使用很长时间后,可以考虑联合第三代EGFR药,而不用等到完全耐药,风险会比化疗小。
(4)AZD3759,阿斯利康的非小肺癌脑转新药,针对egfr突变耐药病人,值得期待。它的一期临床是与AZD9291对比,动物实验的文章也没有发表,专利也无法查到,阿斯利康应该是寄予很高的希望。
PS,有一条好消息,一位研究EGFR耐药最前沿问题的学者也在关注我们论坛,一定会给我们带来帮助。
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个人公众号:treeofhope
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老马教授总给大家带来最新的希望,和最严谨的知识,感谢感谢!看来第三代完全可以在使用中激进一点,当时9291耐药后,加易瑞沙效果一般,然后换成了特罗凯,人一下就弱的很快。真的需要大家的积极总结。我们是在9291的贴子里反馈还是马教授开个帖子,大家来跟贴? |
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有几个群友易特耐药后9291有效时间比较长的耐药后联合易特184都无效但是用9291联合6244效果很好 |
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