晚期非小细胞肺癌各种治疗方案汇总及常见问题

2017-03-24 佚名 海得康海外就医

2017.2版中,免疫药物——PD1抑制剂Keytruda被FDA批准,用于一线治疗(新诊断的癌症患者,首先接受的治疗)!Keytruda一线并不适用于所有肺癌,目前只针对“PD-L1高表达”,“无EGFR或ALK突变”的“非小细胞肺癌”。随着免疫疗法加入,非小细胞肺癌一线治疗用药将越来越精确:a.有EGFR,ALK等主流突变,考虑优先使用靶向药物(EGFR-易瑞沙、特罗凯、AZD9291等,AL

2017.2版中,免疫药物——PD1抑制剂Keytruda被FDA批准,用于一线治疗(新诊断的癌症患者,首先接受的治疗)!

Keytruda一线并不适用于所有肺癌,目前只针对“PD-L1高表达”,“无EGFR或ALK突变”的“非小细胞肺癌”。



随着免疫疗法加入,非小细胞肺癌一线治疗用药将越来越精确:

a.有EGFR,ALK等主流突变,考虑优先使用靶向药物(EGFR-易瑞沙、特罗凯、AZD9291等,ALK-克唑替尼等)。

b.没有主流突变,但PD-L1表达高(≥50%),考虑优先使用免疫药物。

c.没有主流突变,且PD-L1表达低,考虑优先使用化疗,或者组合疗法。



AZD9291用于肺癌EGFR基因突变的二线治疗————2017.2版肺癌NCCN指南

针对T790M继发耐药突变的靶向药物AZD9291成功地延续了EGFR的神话,在二线甚至是一线上展现出的临床疗效,得到了2017.2版NCCN指南的认可。



对于TKI耐药进展的患者,2017.2版NCCN指南直接要求检测T790M的突变状态,对于有症状的多发进展患者直接使用Osimetinib (AZD9291)。

其他T790M阳性的缓慢进展患者也可以直接选用Osimetinib(AZD9291),或进行一代TKI药物治疗,有进展后再使用Osimetinib(AZD9291)。

相信随着Osimetinib(AZD9291)的普及,肺癌T790M突变的患者的一线二线三线治疗将被该药垄断。

1.PD-L1表达量低,使用免疫疗法一定无效么?

不是。目前的共识是PD-L1表达高,PD1或PDL1免疫药物整体效果比较好。但具体到个人,很难预测。有不表达PD-L1的患者响应免疫疗法(但确实比例较低,大概5-10%),反之,也有表达很高PD-L1的患者使用免疫疗法无效。总之,单用PD-L1表达高低来预测免疫疗法效果,能增加概率,但不是绝对的。

2.化疗,甚至靶向药物会逐渐被免疫疗法取代吗?

不会。免疫疗法以及靶向药物(很多靶向治疗就属于免疫疗法)是对化疗的补充,而不是取代。不同的患者适用不同的疗法。

未来发展方向,不是淘汰化疗或者靶向疗法,而是研究如何最好地把这些疗法和免疫疗法组合,达到最佳疾病控制。比如,由于化疗的“免疫先导效应”,以后使用“低剂量化疗”辅助免疫疗法,既能规避大剂量化疗的副作用,又很可能比单用免疫疗法好。

3.EGFR和ALK突变的肺癌患者能用免疫治疗么?

对于EGFR和ALK突变患者,一线治疗目前仍然推荐使用靶向药物。但最新免疫药物Tecentriq的数据,出人意料地显示它对EGFR或ALK突变并对靶向药物耐药的患者有疗效,因而被批准用于这些患者的二线治疗。上市后有待更多数据的证实,如果真是这样,无疑将给患者带来一个比化疗副作用更小的选择。

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    2017-03-25 医艺依意

    这个值得收藏,

    0

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    2017-03-25 dhzzm

    学习了,分享了

    0

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2017年新版基本医保药品目录于不久前更新,较2009年版目录增加了339个药品,增幅达15.4%,引发广泛影响。同时,还有一些药品被列为“拟谈判药品范围”如非小细胞肺癌(NSCLC)小分子靶向药物厄洛替尼等。近期,我们对多位专家进行专访,探讨了肺癌治疗现状、精准医学时代靶向治疗的疗效和安全性特点,并提出了靶向药物纳入医保的期待。本文总结第四军医大学西京医院呼吸内科张艰教授主要观点与读者分享。

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mRNA剪接是调节mRNA表达的重要机制。这个过程的异常调节可能导致肺癌的发生。近期,一项发表在杂志Sci Rep上的研究调查了206 mRNA剪接相关基因与肺癌风险关联的11,966个单核苷酸多态性(SNPs)。研究者们从六个已发表的肺癌(TRICL)跨学科全基因组关联研究(GWASs)(12,160例病例和16,838例对照),另外两个哈佛大学的肺癌GWAS(984例病例和970例对照)以及d