EUR J Cancer:转移性结直肠癌治疗中,BRAF和RAS突变对一线疗法(FOLFIRI加西妥昔单抗,FOLFIRI加贝伐单抗)的影响

2017-12-30 MedSci MedSci原创

在转移性结直肠癌中,RAS和BRAF突变已被确定为抑制性预后因素。因此一线疗法FOLFIRI (5-氟尿嘧啶,亚叶酸,依立替康)联合贝伐单抗治疗RAS突变肿瘤患者的功效需要进一步评估。同时尚不清楚是否能用贝伐单抗或表皮生长因子受体(EGFR)抗体治疗BRAF突变的肿瘤患者。

在转移性结直肠癌中,RASBRAF突变已被确定为抑制性预后因素。因此一线疗法FOLFIRI 5-氟尿嘧啶,亚叶酸,依立替康)联合贝伐单抗治疗RAS突变肿瘤患者的功效需要进一步评估。同时尚不清楚是否能用贝伐单抗或表皮生长因子受体(EGFR)抗体治疗BRAF突变的肿瘤患者。

研究者对FIRE-3临床试验中的患者进行了回顾性分析,对患者肿瘤组织细胞中的KRASNRAS2号,3号和4号外显子进行焦磷酸测序以寻找突变位点。使用Kaplane-Meier法进行生存分析,使用Fishers法比较客观反应率(ORR),同时计算早期肿瘤缩小率(ETS)和反应深度(DpR)。

结果显示,有188名患者被确定为存在RAS突变和48名患者被确定为存在BRAF突变。在BRAF突变患者中,与贝伐单抗组相比,西妥昔单抗的ORR在数值上更高(52% vs 40%)。在RAS突变患者中,相比于贝伐单抗,接受FOLFIRI加西妥昔单抗治疗的患者的客观反应率(ORR)与无进展生存期(PFS)数值均较低。但RASBRAF突变患者在两个治疗组中的反应深度(DpR)相似。

总体而言,在BRAFRAS突变患者中,基于西妥昔单抗和贝伐单抗的治疗在提高患者生存时间方面具有相似结果。

原始出处:

Stintzing, S., et al. "Impact of BRAF and RAS mutations on first-line efficacy of FOLFIRI plus cetuximab versus FOLFIRI plus bevacizumab: analysis of the FIRE-3 (AIO KRK-0306) study." European Journal of Cancer 2017 79: 50-60. doi.org/10.1016/j.ejca.

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    2018-08-08 chengjn
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    2018-01-01 zhaojie88
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GUT:贝伐单抗治疗肝转移的结直肠癌患者疗效如何?

近期,一项发表在杂志GUT上的研究旨在验证对于不能手术切除的结直肠癌肝转移(CLM)患者,予以贝伐单抗化疗后对患者CT早期最佳形态学应答的预后价值。此外,还评估了基于大小的预后价值以及最佳形态学响应与接受贝伐单抗治疗之间的相关性。此项研究为回顾性研究,研究者们分析了141名首先使用贝伐单抗治疗的患者和142名以奥沙利铂为基础的化疗后添加贝伐单抗治疗的患者。放射科医师使用形态学应答标准评估治疗前和治

EUR J Cancer:转移性结直肠癌患者经化疗联合西妥昔单抗或贝伐单抗治疗后的手术可行性评估:FIRE-3临床试验评估

FIRE-3临床试验研究了化疗联合西妥昔单抗或贝伐单抗治疗未经治疗的转移性结直肠癌(mCRC),德国慕尼黑大学的研究人员通过该临床试验,确定了经系统性一线治疗方案后具有潜在肿瘤可切除性的mCRC患者数量,并将这些研究结果和那些关注可切除性的研究作了详细对比。研究人员对448名患者的治疗结果进行了盲法评估,而可切除性的定义是否至少有50%的评价者推荐手术干预,总生存期则用Kaplane-Meier法

J AAPOS:贝伐单抗与激光治疗对早产儿视网膜病变的疗效和发育影响!

德克萨斯州大学休斯顿健康科学中心麦戈文医学院儿科的Kennedy KA近日在J AAPOS发表了一篇新的文章,他们比较了对早产儿视网膜病变治疗过程中,贝伐单抗治疗与激光治疗对发育是否有不良影响。