J Clin Oncol:波齐替尼(Poziotinib)治疗HER2外显子20突变的晚期NSCLC的疗效和安全性

2021-09-24 Nebula MedSci原创

波齐替尼在携带HER2外显子20突变的晚期NSCLC患者中展现出了令人期待的抗肿瘤活性

约3%的肺癌患者携带人表皮生长因子受体2(ERBB2, HER2)突变;在非小细胞肺癌(NSCLC)中,约48%的HER2突变是外显子20突变。迄今为止,携带HER2突变的NSCLC患者的靶向治疗需求尚未被完全满足。

Poziotinib(波齐替尼)是一种创新的口服广谱HER抑制剂,能够不可逆转地阻断所有HER家族酪氨酸激酶受体的信号传递。临床前试验表明,波齐替尼对携带外显子20插入突变的HER受体的抑制效果是现有酪氨酸激酶抑制剂的几十倍。

这是一项单臂、开放标签的2期试验,评估了波齐替尼用于携带HER2外显子20突变的晚期NSCLC患者的疗效和安全性。

招募的携带HER2外显子20突变的晚期NSCLC患者接受波齐替尼 16mg/天治疗,28天为一疗程。主要终点是客观缓解率。

总体上,30位患者接受了波齐替尼治疗。基线时,90%的患者既往接受过以铂类为基础的化疗,53%的患者进行过2线或更高线的系统治疗。

每位患者的最佳缓解程度

截止2021年3月1日时,该研究队列的确认的客观缓解率为27%(95% CI 12-46)。在HER2外显子20突变亚型中都观察到了缓解。中位缓解持续时间为5.0个月(95% CI 4.0-未及)。中位无进展生存期为5.5个月(95% CI 4.0-7.0)。中位总生存期为15个月(95% CI 9.0-未及)。

缓解持续时间和无进展生存期

最常见的3级治疗相关不良事件有皮肤红疹(47%)和腹泻(20%)。一例疑似治疗相关死亡(肺炎)。

治疗相关不良事件

综上,波齐替尼在携带HER2外显子20突变的晚期NSCLC患者中,包括既往接受过以铂类为基础的化疗的患者,展现出了令人期待的抗肿瘤活性

原始出处:

Yasir Y. Elamin, et al. Poziotinib for Patients With HER2 Exon 20 Mutant Non–Small-Cell Lung Cancer: Results From a Phase II Trial. Journal of Clinical Oncology. September 22, 2021. https://ascopubs.org/doi/full/10.1200/JCO.21.01113

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    2022-09-04 minlingfeng
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    2021-09-25 39294663

    E20泛Her家族有药品了?那单纯20外显子突变能用吗?

    0

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    2021-09-24 8楼小医生

    每日学习最新知识

    0

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