Nature重磅:多家中国医院参与,PD-1+HER2+化疗,三管齐下治胃癌

2021-12-21 “生物世界”公众号 “生物世界”公众号

据世界卫生组织国际癌症研究署(IARC)发布的2020年全球最新癌症负担数据。2020年全球胃癌新发病例高达109万,位居癌症发病率第五,死亡率更是位居第四。

据世界卫生组织国际癌症研究署(IARC)发布的2020年全球最新癌症负担数据。2020年全球胃癌新发病例高达109万,位居癌症发病率第五,死亡率更是位居第四。而在我国,胃癌的发病率和死亡率更是高居第三。更重要的是,50岁以下的年轻人群的胃癌发病率越来越高。

大约20%的晚期胃癌和胃食管交界癌具有人表皮生长因子受体2(HER2)的过表达或扩增,而这与预后不良以及癌症复发和死亡率增加有关。十多年来,曲妥珠单抗(抗HER2单抗)联合化疗已成为HER2阳性癌症患者的标准一线治疗。

近日,纪念斯隆凯特琳癌症中心和威尔康奈尔医学院联合世界各地的20多家医疗机构,在 Nature 发表了题为:The KEYNOTE-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer 的论文。

这项3期临床中期分析结果显示,派姆单抗(抗PD-1单抗)+曲妥珠单抗(抗HER2单抗)+化疗,三管齐下,显着减少了HER2阳性胃癌患者的肿瘤大小,在部分患者中诱导了完全响应,显着提高了客观缓解率。

这项研究首次展示了PD-1免疫检查点抑制剂对HER2阳性胃癌群体的效果,这项临床试验完成后,可能会导致局部晚期不可切除或转移性HER2阳性胃癌或胃食管交界癌患者治疗范式的转变。

论文作者还包括:郑州大学附属肿瘤医院李宁、哈尔滨医科大学附属肿瘤医院白玉贤、北京大学肿瘤医院沈琳、新疆医科大学附属医院唐勇、中国人民解放军总医院徐建明、中国人民解放军肿瘤中心秦叔逵

2020年癌症新发病例数前十的癌症类型,胃癌位居五

2020年癌症死亡病例数前十的癌症类型,胃癌位居第四

此前,派姆单抗(抗PD-1单抗)+曲妥珠单抗(抗HER2单抗)+化疗的2期临床试验显示出在HER2阳性晚期胃癌或胃食管交界癌患者中临床疗效提高,且安全性可控。

基于这些令人鼓舞的结果,纪念斯隆凯特琳癌症中心和威尔康奈尔医学院的 Yelena Y. Janjigian 联合了中国、日本、智利、意大利、乌克兰、波兰、比利时、韩国等20多家科研结构,开展了这项名为 KEYNOTE-811 的随机、双盲、全球3期临床试验。旨在进一步评估这种新型联合用药的效果和安全性。

这篇 Nature 论文报告了前 264 名患者的中期分析结果,这些患者以1:1的比例随机分配接受派姆单抗+曲妥珠单抗+化疗或安慰剂+曲妥珠单抗+化疗。

试验结果显示,派姆单抗+曲妥珠单抗+化疗组的客观缓解率为74.4%,而安慰剂+曲妥珠单抗+化疗组的客观缓解率为51.9%。派姆单抗+曲妥珠单抗+化疗组的客观缓解率提高了22.7%,这支持了临床前研究,表明阻断HER2和阻断PD-1之间可能存在着协同效应。

此外,这两组之间的不良反应发生率相似(派姆单抗组57.1%,安慰剂组57.4%)。

研究团队表示,这项研究首次展示了PD-1免疫检查点抑制剂对HER2阳性胃癌群体的效果,临床试验结果显示,派姆单抗+曲妥珠单抗+化疗的组合,不仅显着提高了客观反应率,还显着减少了肿瘤大小并诱导了一些患者的完全响应。

 

原始出处:

Janjigian, Y.Y., Kawazoe, A., Ya?ez, P. et al. The KEYNOTE-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer. Nature (2021). https://doi.org/10.1038/s41586-021-04161-3.

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    2022-11-18 liye789132251
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    2022-03-29 医者仁者

    #胃癌##靶向治疗#时代到来!

    0

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    2021-12-23 1391f297e2m

    学习

    0

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    2021-12-23 xxxx1054
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    2021-12-21 病毒猎手

    关键是效果!

    0

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