JCO:乳腺癌新辅助化疗结局的种族差异

2015-11-26 Mechront 译 MedSci原创

研究者进行了一项研究,探究乳腺癌新辅助化疗对不同种族人群的结局差异。该研究纳入了2010-2011年诊断为1-3期的乳腺癌患者,根据不同种族分组,收集化疗使用和病理完全缓解率 (pCR)等数据。共有278,815名患者已知其种族,127,417 (46%)名患者接受了化疗,121,446名患者明确化疗时机,27,300 (23%)名患者接受新辅助化疗。研究数据显示,黑人、西班牙裔和亚洲女性患者接受

研究者进行了一项研究,探究乳腺癌新辅助化疗对不同种族人群的结局差异。该研究纳入了2010-2011年诊断为1-3期的乳腺癌患者,根据不同种族分组,收集化疗使用和病理完全缓解率 (pCR)等数据。

共有278,815名患者已知其种族,127,417 (46%)名患者接受了化疗,121,446名患者明确化疗时机,27,300 (23%)名患者接受新辅助化疗。

研究数据显示,黑人、西班牙裔和亚洲女性患者接受化疗,尤其是新辅助化疗比白种人更频繁(P < 0.001);因为化疗人群中更多的是晚期、更高级别肿瘤,更多的三阴乳腺癌和HER2阳性乳腺癌患者,可以解释该种族间的差异。

对17,970名已知结局的患者,5,944 (33%)名达到了pCR。对ER/PR阳性的患者,化疗有效性在不同种族间差异不明显;但是与白种人相比,ER/PR阴性,HER2阳性的乳腺癌黑人患者pCR更低(43% v 54%, P = 0.001) ,以及三阴乳腺癌pCR也更低 (37% v 43%, P < 0.001),西班牙裔和亚洲患者与白种人相比,无此差异。当对年龄、临床分期分级、组织学、地理等混杂因素进行校正后,差异仍存在 (OR=0.84; 95% CI, 0.77 to 0.93)。

研究结果表明,与白种人相比,黑人、西班牙裔和亚洲女性患者接受新辅助化疗治疗更频繁更多。三阴乳腺癌和HER2阳性乳腺癌的黑人患者达到pCR的更少。这种差异的出现可能是因为生物化学对化疗反应的差异造成的,还可能是无法校正的社会经济因素导致的。

原始出处:


Killelea BK, Yang VQ,et al.Racial Differences in the Use and Outcome of Neoadjuvant Chemotherapy for Breast Cancer: Results From the National Cancer Database.J Clin Oncol. 2015 Nov 23.


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    2016-02-27 lidong40
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    2015-11-28 Handyuan

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    2015-11-27 huangwukui

    指导后期治疗

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