JCO:重组人红细胞生成素(EPO)并不优于RBC输血

2016-02-09 MedSci MedSci原创

 由于癌症患者接受化疗导致骨髓抑制,贫血也就成了这些癌症患者经常出现的症状。早前的研究表明促红细胞生成素刺激试剂可以减少对血红细胞输血的需求,增加血红蛋白水平,改善由化疗导致贫血的癌症患者的生活质量,也有可能延长生存时间。研究人员开展了一项随机、非盲、多中心、非劣性的临床三期试验来评价重组人红细胞生成素(EPO)用于治疗转移性乳腺癌患者化疗导致的贫血。 血红蛋白低于11.0 g

由于癌症患者接受化疗导致骨髓抑制,贫血也就成了这些癌症患者经常出现的症状。早前的研究表明促红细胞生成素刺激试剂可以减少对血红细胞输血的需求,增加血红蛋白水平,改善由化疗导致贫血的癌症患者的生活质量,也有可能延长生存时间。研究人员开展了一项随机、非盲、多中心、非劣性的临床三期试验来评价重组人红细胞生成素(EPO)用于治疗转移性乳腺癌患者化疗导致的贫血。

血红蛋白低于11.0 g/dL、接受过一线或二线化疗的转移性乳腺癌患者被随机分成两组。一组接受EPO治疗(皮下注射,每周一次,每次40000IU),另一组接受最标准的监护。主要的终点是无进展生存时间(PFS)。次要终点包括了总生存时间、肿瘤进展的时间、总反应率、RBC输血以及血栓事件。共有2098名病人参与了此次试验。两组的中位PFS(基于研究人员确定的疾病进展,PD)都是7.4个月(HR,1.089,;95% CI, 0.988-1.200);最大值超过了预先设定的非劣性边界。而基于独立的审查委员会,两组的PFS则为7.6个月(HR,1.028;95% CI, 0.922-1.146)。在临床试验截止时,两组的中位总生存时间分别为17.2和17.4个月。肿瘤进展的中位时间皆为7.5个月,总的反应率分别为50%和51%。RBC输血分别为5.8%和11.4%。血栓事件发生率分别为2.8%和1.4%。

此项试验的数据表明,以及研究人员确定的疾病进展的PFS并没有达到非劣性条件。总体来看,RBC输血仍然是治疗化疗导致的贫血的更好的方法。

原始出处:
Brian Leyland-Jones et al. A Randomized, Open-Label, Multicenter, Phase III Study of Epoetin Alfa Versus Best Standard of Care in Anemic Patients With Metastatic Breast Cancer Receiving Standard Chemotherapy. JCO. Published Ahead of Print on February 8, 2016 as 10.1200/JCO.2015.63.5649

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    2016-03-09 lidong40
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    2016-02-11 windight
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