Lancet:对于雌激素受体阳性的晚期乳腺癌患者氟维司群疗效比阿那曲唑更好

2016-11-29 haofan MedSci原创

对于没有接受过内分泌治疗的激素受体阳性的局部晚期或转移性乳腺癌患者,相比于用于这些患者的一线治疗的标准治疗药物-第三代芳香化酶抑制剂,氟维司群具有优越的疗效并且可以作为这些患者的首选治疗药物。

芳香酶抑制剂是激素受体阳性的局部晚期或转移性乳腺癌的一种标准治疗方案。近日,顶级医学杂志Lancet上发表了一篇研究文章,旨在评估相比于阿那曲唑,选择性雌激素受体的降解物氟维司群能否改善没有接受过内分泌治疗的绝经患者的无进展生存期。

在这个3期、随机、双盲试验中,研究人员招募了符合条件的经组织学证实的雌激素受体阳性或孕激素受体阳性或两者均阳性的局部晚期或转移性乳腺癌患者,这些患者来自于20个国家的113个教学医院和社区医疗中心。符合条件的患者未接受过内分泌治疗、标准行为状态评分为0–2分,并且至少有一处可衡量的或不可衡量的病变。通过计算机生成的随机数表将患者按1:1随机分组,分别接受500mg氟维司群(肌肉注射;0天,14天,28天,然后每28天注射一次)或1mg阿那曲唑(每日口服)。


主要终点指标为通过1.1版的实体瘤反应评价标准来确定有意向治疗人群因疾病恶化进行手术或放射治疗干预的无进展生存期、或任何原因导致的死亡。研究人员对所有接受至少一个疗程随机治疗(包括安慰剂)的患者的安全性结局进行了评估。这项试验在ClinicalTrials.gov进行了登记,编号为NCT01602380。

在2014年7月11日至2012年10月17日期间,共有524例患者参加了这项研究。其中,462例患者被随机分配(230名接受氟维司群和232名接受阿那曲唑)。接受氟维司群治疗的患者无进展生存期明显长于接受阿那曲唑治疗的患者(风险比为0.797,95%可信区间为0.637–0.999,P=0.0486)。接受氟维司群治疗的患者中位无进展生存期为16.6个月(95%可信区间为13.83–20.99),而在接受阿那曲唑治疗的患者为13.8个月(11.99–16.59)。最常见的不良反应是关节痛(接受氟维司群治疗的患者中有38例[17%],接受阿那曲唑治疗的患者有24例[10%])、潮热(接受氟维司群治疗的患者中有26例[11%],接受阿那曲唑治疗的患者有24例[10%])。16(7%)例/228例接受氟维司群治疗的患者和11(5%)例/232例接受阿那曲唑治疗的患者因不良事件而终止试验。

由此可见,对于没有接受过内分泌治疗的激素受体阳性的局部晚期或转移性乳腺癌患者,相比于用于这些患者的一线治疗的标准治疗药物-第三代芳香化酶抑制剂,氟维司群具有优越的疗效并且可以作为这些患者的首选治疗药物。

原始出处:

John F R Robertson, et al. Fulvestrant 500 mg versus anastrozole 1 mg for hormone receptor-positive advanced breast cancer (FALCON): an international, randomised, double-blind, phase 3 trial. Lancet. 28 November 2016.

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    2017-08-02 howi
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PNAS:肿瘤细胞或可“拆用”间充质干细胞来促进乳腺癌复发

为何很多乳腺癌幸存者都非常担心会发生疾病复发呢?这一问题也让很多科学家和卫生保健提供者非常困扰,因为乳腺癌患者在进行治疗结束后的数年里癌症会突然间死灰复燃,最终导致患者死亡。近日刊登在国际杂志Proceedings of the National Academy of Sciences上的一项研究报告中,来自德州农工大学医学院的研究人员通过研究发现,乳腺癌患者机体中休眠的肿瘤细胞往往会潜伏起来,因

NEJM:Palbociclib+来曲唑治疗可显著延长晚期乳腺癌患者的无进展生存期

一项2期研究显示,在绝经后女性雌激素受体(ER)–阳性、人表皮生长因子受体2(HER2)–阴性晚期乳腺癌患者中,与单独来曲唑的初始治疗,palbociclib加来曲唑可延长无进展生存期。