在转移性乳腺癌中HER2NEU低的预后影响
Zachary Neubauer1, Shaakir Hasan2, Robert H Press2
1Thomas Jefferson School of Medicine, Philadelphia, Pennsylvania, USA.
Cancer medicine
|February 21, 2024
概括
这项研究发现,HER2-低转移性乳腺癌 (MBC) 患者的生存率略高于HER2-阴性MBC患者. 这些发现突出了MBC亚型的结果中的重要区别.
科学领域:
- 在瘤学瘤学.
- 医疗信息学 医疗信息学
背景情况:
- 转移性乳腺癌 (MBC) 包含异质的亚型.
- 人体表皮生长因子受体2 (HER2) 表达是乳腺癌的关键生物标志物,具有不同的类别,包括HER2-负和HER2-低.
- 了解与HER2-低与HER2-阴性MBC相关的临床结果对于治疗分层至关重要.
研究的目的:
- 通过使用现实世界的数据,研究HER2-阴性和HER2-低转移性乳腺癌 (MBC) 的特征和临床结果.
- 为了比较HER2-低和HER2-阴性MBC患者队列之间的生存率.
- 确定与这些MBC亚型的生存相关的人口和临床因素.
主要方法:
- 利用国家癌症数据库根据HER2免疫组织化学染色识别MBC患者.
- 采用二项式回归来分析HER2-阴性和HER2-低亚型的人口统计和临床相关性.
- 进行了考克斯多变量回归分析和倾向匹配分析,以确定生存相关性.
主要成果:
- 鉴定了24,636名MBC患者 (2008-2015年),其中27.9%的患者HER2阴性,72.1%的患者HER2低.
- 低HER2的瘤不太可能是激素受体阳性 (p <0.01).
- 在荷尔蒙受体阴性 (33.8%对32.2%) 和荷尔蒙受体阳性 (60.9%对55.6%) 组中,低HER2的MBC显示了改善的3年生存率 (p < 0.05).
- 多变量和倾向匹配分析证实了HER2低病例的更好的生存率 (HR = 0.95,95% CI 0.91-0.99和HR = 0.92,95% CI 0.89-0.96,分别).
- 更糟糕的生存相关性包括年龄较大和黑人种族 (p < 0.01).
结论:
- 这种大规模的真实世界数据分析表明,与HER2-阴性瘤相比,HER2-低转移性乳腺癌的存活率有统计学意义,尽管很小.
- 这些发现强调了在MBC的预后评估中区分HER2-低和HER2-负状态的重要性.
- 进一步的研究可能会阐明针对HER2-低MBC的向治疗策略.
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