在残留的HER2-阳性早期乳腺癌中,trastuzumab Deruxtecan可用于治疗乳腺癌
Sibylle Loibl1,2, Yeon Hee Park3, Zhiming Shao4
1German Breast Group, Neu-Isenburg, Germany.
The New England journal of medicine
|December 10, 2025
概括
与trastuzumab emtansine (T-DM1) 相比,trastuzumab deruxtecan (T-DXd) 在患有HER2阳性乳腺癌的患者中显著改善了无侵袭性疾病生存率. T-DXd显示了间歇性肺病的更高风险,需要仔细监测.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 临床试验 临床试验
背景情况:
- 在接受新辅助治疗后,HER2阳性早期乳腺癌和残留疾病患者面临复发的高风险.
- 确定有效的治疗方法来减少这种高风险群体的复发是至关重要的.
研究的目的:
- 为了比较后neoadjuvant trastuzumab deruxtecan (T-DXd) 与 trastuzumab emtansine (T-DM1) 的疗效和安全性,在患有残留疾病的HER2阳性乳腺癌的患者中.
- 评估无侵袭性疾病生存率 (IDFS) 作为主要终点和无疾病生存率 (DFS) 作为关键次要终点.
主要方法:
- 一个第三期,开放标签,国际,随机试验,涉及1635名患有HER2阳性乳腺癌和残留侵入性疾病的患者.
- 患者被随机分配1:1接受T-DXd (5.4毫克/公斤) 或T-DM1 (3.6毫克/公斤).
- 主要终点是无侵袭性疾病生存期;次要终点包括整体生存期,远程无复发间隔,无脑转移间隔和安全.
主要成果:
- 与T-DM1相比,T-DXd显著改善了无侵袭性疾病生存率 (3年IDFS:92.4%与83.7%相比;危险比率0.47).
- 与T-DXd (3年DFS: 92.3%与83.5%相比;危险比率,0.47) 无疾病生存率也显著更高.
- 对于T-DXd的常见不良事件包括恶心和便秘;对于T-DM1,肝酶增加和血小板数量减少. 与T-DXd (9.6%与1.6%) 相比,与药物相关的间歇性肺病发生的频率更高.
结论:
- 与T-DM1相比,后新辅助T-DXd显著提高了高风险的HER2阳性乳腺癌患者的无侵袭性疾病生存率.
- 虽然T-DXd提供了更好的疗效,但间歇性肺病是需要警监测和管理的已确定的风险.
- 毒性作用主要是胃肠道和血液学T-DXd,肝脏和血液学T-DM1.
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