JAMA Oncol:阿特珠单抗、多西他赛、曲妥珠单抗和帕妥珠单抗新辅助治疗ERBB2阳性早期乳腺癌的效果

2022-07-10 MedSci原创 MedSci原创

阿特珠单抗、多西他赛、曲妥珠单抗和帕妥珠单抗新辅助治疗ERBB2阳性早期乳腺癌似乎具有可接受的pCR率和中等毒性。

在抗ERBB2治疗中加入免疫检查点抑制剂已在临床前研究中显示出了协同作用,因此,作为一种新辅助治疗以最大化疗效和最小化毒性作用是值得研究的。该研究旨在确定阿特珠单抗、多西他赛、曲妥珠单抗和帕妥珠单抗新辅助治疗ERBB2阳性早期乳腺癌的可行性。

这是一项非随机、开放标签、多中心的2期试验,招募了ERBB2阳性、原发肿瘤>2cm或病理明确的淋巴结阳性且无远处转移的乳腺癌患者,予以6个疗程的新辅助帕妥珠单抗、阿特珠单抗、多西他赛和曲妥珠单抗治疗后行手术治疗。手术后获得病理完全缓解(pCR)的患者再接受12个疗程的阿特珠单抗、曲妥珠单抗和帕妥珠单抗辅助治疗。未获得pCR的患者接受14个疗程的阿特珠单抗和曲妥珠单抗治疗。主要终点是pCR率。次要终点包括临床客观缓解率、3年无事件生存率、无病生存率、总生存率、毒性和生活质量。


不同分子学特征亚组患者的pCR率

共招募了67位女性患者(中位年龄 52岁),其中32位(48%)患者的激素受体表达阳性。由于两位患者在新辅助治疗过程中出现了疾病进展、肿瘤无法切除,其余65位患者都接受了治愈性手术治疗。总pCR率为61%。激素受体阴性患者的pCR率高于阳性患者(77% vs 44%);PD-1阳性患者的pCR率高于阴性患者(100% vs 53%)。


总的临床治疗反应

8位(12%)患者经历了3/4级的中性粒细胞减少症,5位(8%)患者经历3/4级的发热性中性粒细胞减少症。只有4位患者发生了3/4级的免疫相关不良反应(3级皮疹、脑炎、肝炎和发烧)。新辅助治疗期间无治疗相关死亡。

综上,在II-III期ERBB2阳性乳腺癌患者中使用新辅助药物阿特珠单抗、多西他赛、曲妥珠单抗和帕妥珠单抗治疗似乎具有可接受的pCR率和中等毒性作用。

原始出处:

Ahn HK, Sim SH, Suh KJ, et al. Response Rate and Safety of a Neoadjuvant Pertuzumab, Atezolizumab, Docetaxel, and Trastuzumab Regimen for Patients With ERBB2-Positive Stage II/III Breast Cancer: The Neo-PATH Phase 2 Nonrandomized Clinical Trial. JAMA Oncol. Published online July 07, 2022. doi:10.1001/jamaoncol.2022.2310

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    2023-02-03 minlingfeng
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    2022-07-10 肿瘤克星

    JAMA上文章都是顶级的,谢谢梅斯及时上新

    0

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