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艾立布林对晚期乳腺癌的实际效果

国际癌症杂志 SIBCS 2023-01-13


  艾立布林为软海绵素类细胞有丝分裂微管动力抑制剂,是第一个单药治疗晚期乳腺癌患者获得总生存改善的化疗药物,2010年11月15日被美国食品药品管理局(FDA)批准用于至少两线其他化疗失败的晚期乳腺癌,预计将于2019年获得中国大陆内地批准。不过,其用于晚期乳腺癌二线化疗的效果目前存在争议。


  2019年5月14日,国际抗癌联盟《国际癌症杂志》在线发表法国全国癌症中心联盟、蒙彼利埃大学、蒙彼利埃癌症研究所、莱昂贝拉德癌症中心、图卢兹大学癌症研究所、古斯塔夫鲁西研究所、圣埃尔布兰癌症研究所、弗朗索瓦巴克莱斯癌症中心、波尔多癌症研究所、亨利贝克勒尔癌症中心、乔治勒克莱尔癌症中心、尤金侯爵癌症中心、保利卡尔梅特斯研究所、洛林癌症研究所、安托万拉卡萨涅癌症中心、让戈迪诺特癌症研究所、保罗施特劳斯癌症中心、让佩林癌症中心、巴黎居里研究所、奥斯卡兰布雷特癌症中心真实世界研究报告,分析了艾立布林用于晚期乳腺癌二线、三线、四线化疗的实际效果。


  该全国多中心观察研究(ESME)对2008年1月~2014年12月开始接受艾立布林作为晚期乳腺癌二线、三线、四线化疗的连续16703例患者结局进行回顾分析,主要和次要目标分别为总生存和无进展生存。由于HER2阳性乳腺癌及其抗HER2靶向治疗不平衡,故对HER2阴性患者进行亚组分析。


  结果,对于全部乳腺癌,艾立布林与其他化疗相比:

  • 中位无进展生存

  • 二线:5.06比4.14个月(P=0.1171)

  • 三线:4.14比3.02个月(P=0.0010)

  • 四线:3.61比2.53个月(P=0.0102)

  • 中位总生存

  • 二线:13.99比11.66个月(P=0.151)

  • 三线:11.27比7.65个月(P=0.0001)

  • 四线:10.91比5.95个月(P<0.0001)


所有乳腺癌二线化疗无进展生存曲线

所有乳腺癌三线化疗无进展生存曲线

所有乳腺癌四线化疗无进展生存曲线

所有乳腺癌二线化疗总生存曲线

所有乳腺癌三线化疗总生存曲线

所有乳腺癌四线化疗总生存曲线


  根据亚组分析,对于HER2阴性乳腺癌,艾立布林与其他化疗相比:

  • 中位无进展生存

  • 二线:4.57比3.91个月(P=0.0379)

  • 中位总生存

  • 二线:14.98比10.51个月(P=0.0113)


HER2阴性乳腺癌二线化疗无进展生存曲线

HER2阴性乳腺癌二线化疗总生存曲线


  因此,根据该真实世界大样本数据库分析结果,HER2阴性晚期乳腺癌患者二线或以上化疗接受艾立布林的无进展生存和总生存显著改善,不过对于整体人群二线化疗的生存改善不显著,可能由于HER2阳性乳腺癌及其抗HER2靶向治疗不平衡。该结果反映了已发表的随机对照研究结果。对于该情况,有必要进一步明确抗HER2靶向治疗对艾立布林二线化疗的影响。


Int J Cancer. 2019 May 14. [Epub ahead of print]


Real-life activity of eribulin mesylate among metastatic breast cancer patients in the multicenter national observational ESME program.


Jacot W, Heudel P, Fraisse J, Gourgou S, Guiu S, Dalenc F, Pistilli B, Campone M, Levy C, Debled M, Leheurteur M, Chaix M, Lefeuvre C, Goncalves A, Uwer L, Ferrero J, Eymard J, Petit T, Mouret-Reynier M, Courtinard C, Cottu P, Robain M, Mailliez A.


Institut du Cancer de Montpellier, Val d'Aurelle, Montpellier University, Montpellier, France; Centre Leon Berard, Lyon, France; Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France; Gustave Roussy, Villejuif, France; Institut de Cancerologie de l'Ouest, Saint-Herblain, France; Centre Francois-Baclesse, Caen, France; Institut Bergonie, Bordeaux, France; Centre Henri Becquerel, Rouen, France; Centre Georges Francois Leclerc, Dijon, France; Centre Eugene Marquis, Rennes, France; Institut Paoli-Calmettes, Marseille, France; Institut de cancerologie de Lorraine, Vandaeuvre-les-Nancy, France; Centre Antoine Lacassagne, Nice, France; Institut de cancerologie Jean Godinot, Reims, France; Centre Paul Strauss, Strasbourg, France; Centre Jean-Perrin, Clermont-Ferrand, France; UNICANCER, Paris, France; Etablissement hospitalier Institut Curie, Paris, France; Centre Oscar Lambret, Lille, France.


Eribulin mesylate (EM) was recently approved for metastatic breast cancer (MBC) chemotherapy in late lines by the FDA, with debated results in 2nd line. We evaluated outcomes in breast cancer patients receiving EM as second, third and fourth line in a national real-life cohort of 16,703 consecutive MBC patients initiating their first metastatic therapeutic line between 2008 and 2014. Primary and secondary objectives were overall survival (OS) and progression-free (PFS). An imbalance was seen for HER2+ tumors and concomitant anti-HER2 targeted therapies use, we thus performed a sub-analysis in HER2- patients.


PFS and OS were significantly better in EM patients in 3rd and 4th lines, compared to "Other chemotherapies" patients (PFS: 4.14 vs. 3.02 months, p=0.0010; 3.61 vs. 2.53 months, p=0.0102, 3rd and 4th-line; OS: 11.27 vs. 7.65 months, p=0.0001; 10.91 vs. 5.95 months, p<0.0001, 3rd and 4th-line). No significant difference was reported in 2nd-line (PFS: 5.06 vs. 4.14 months, p=0.1171; OS: 13.99 vs. 11.66 months, p=0.151). Among HER2- patients, a significant difference was seen for all lines, including 2nd-line (PFS: 4.57 vs. 3.91 months, p=0.0379; OS: 14.98 vs. 10.51 months, p=0.0113).


In this large real-world database, HER2-negative MBC patients receiving EM in 2nd or later chemotherapy line presented significantly better PFS and OS. This difference disappeared in 2nd line in the overall population, probably because of the imbalance in HER2-targeted treatments use. Our results mirror those of the published randomized trials. The effect of anti-HER2 therapies addition in this setting still needs to be defined.


KEYWORDS: metastatic breast cancer eribulin real-life cohort


DOI: 10.1002/ijc.32402


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