CLIN CANCER RES:循环肿瘤DNA早期改变可以作为转移性结直肠癌患者治疗效果的标志

2017-09-22 MedSci MedSci原创

转移性结直肠癌患者化疗有效性的标志对最佳治疗方案的选择至关重要。CLIN CANCER RES近期发表了一篇文章,研究循环肿瘤DNA(ctDNA)早期改变作为治疗效果的分子标志的可行性。研究纳入的患者为接受一线或二线化疗的转移性结直肠癌患者。在第1个(C0),第2个(C1)和/或第3个(C2)化疗周期前收集血清评估循环肿瘤DNA情况,使用PCR检测基因突变(KRAS、BRAF、TP53)或超甲基化

转移性结直肠癌患者化疗有效性的标志对最佳治疗方案的选择至关重要。CLIN CANCER RES近期发表了一篇文章,研究循环肿瘤DNA(ctDNA)早期改变作为治疗效果的分子标志的可行性。

研究纳入的患者为接受一线或二线化疗的转移性结直肠癌患者。在第1个(C0),第2个(C1)和/或第3个(C2)化疗周期前收集血清评估循环肿瘤DNA情况,使用PCR检测基因突变(KRAS、BRAF、TP53)或超甲基化(WIF1、NPY)情况。使用多因素分析调整年龄、性别、ECOG、转移同步性等其他因素。研究共安如接受一线或二线化疗的转移性结直肠癌患者82例。在C0期循环肿瘤DNA浓度高(>ng/ml)的患者与浓度低(≤10ng/ml)的患者相比总生存期更短。通过分析C0和C1或C2循环肿瘤DNA浓度的变化,作者将患者分为两组(循环肿瘤DNA反应良好和不佳组)。多因素分析表明,循环肿瘤DNA反应良好组患者(n=58)与反应不佳患者(n=15)相比客观反应率更好,平均无进展生存期和总生存期更长。

文章最后认为,循环肿瘤DNA浓度的早期改变可以作为转移性结直肠癌患者治疗效果的标志。

原始出处:
Fanny Garlan,Pierre Laurent-Puig,et al.Early Evaluation of Circulating Tumor DNA as Marker of Therapeutic Efficacy in Metastatic Colorectal Cancer Patinets(PLACOL Study).CLIN CANCER RES.September 2017 doi:10.1158/1078-0432.CCR-16-3155

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    2017-09-23 大爰

    学习了谢谢分享!!

    0

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    2017-09-22 随梦飞扬

    循环肿瘤DNA浓度的早期改变可以作为转移性结直肠癌患者治疗效果的标志.

    0

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    2017-09-22 1e0f8808m18(暂无匿称)

    学习了.好文章.

    0

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一项由Dana-Farber癌症研究所研究人员开展的一项多机构的维生素D随机、单盲治疗癌症患者临床试验发现,高剂量微生物或可减缓转移性结直肠癌患者的疾病进展,相关研究结果发表在6月2-6日在美国芝加哥举行的第53届美国临床肿瘤学会年会(ASCO)上。

Lancet Oncol:纳武单抗用于dMMR/MSI-H转移性结直肠癌显示出了令人鼓舞的疗效

本研究为纳武单抗治疗转移性dMMR/MSI-H结直肠癌患者的Ⅱ期临床试验,纳武单抗的疗效优于既往传统治疗,且疗效及疾病控制维持时间持久,不受基因状态及亚组分组因素影响,为这部分患者开启了免疫治疗的全新篇章。 概述 结直肠癌是全球高发肿瘤之一,不能接受手术的转移性结直肠癌患者只能接受氟尿嘧啶药物为基础的化疗方案,也可以选择是否联合抗血管生成或抗EGFR治疗,这部分患者的五年生存率仅为13.5

Lancet Oncol:TAS-102+贝伐单抗可用于治疗难治性的转移性结直肠癌

在治疗严重的转移性结直肠癌的患者中,与安慰剂相比,TAS-102——曲氟尿苷和盐酸盐复方药物具有显着的总体生存效益。在临床前模型中,TAS-102+贝伐单抗,与单独使用二者任何一个药物相比,其在对抗结肠直肠癌异种移植的活性中表现出了增强。近日,在医学杂志Lancet Oncol上面发表了一篇研究文章,该文章旨在评估TAS-102+贝伐单抗的活性和安全性。

ASCO2017:微卫星不稳定性转移性结直肠癌预后及化疗敏感性的多中心研究

转移性错配修复缺陷结直肠癌患者预后差且对于5FU基础化疗抵抗,针对这部分患者将设计开展伊立替康,贝伐单抗联合免疫检查点抑制剂的前瞻性试验

JAMA Oncol:抗肿瘤疫苗5T4联用环磷酰胺治疗转移性结直肠癌

研究认为改良安卡拉痘苗-5T4联用低剂量的环磷酰胺可有效延长转移性结直肠癌患者生存期