JCO:西妥昔单抗联合放化疗治疗HIV相关肛管癌 利弊皆有!

2017-05-26 常路 环球医学

2017年3月,发表在《J Clin Oncol》的一项2期AIDS恶性肿瘤协作试验调查了西妥昔单抗联合放化疗治疗HIV相关肛管癌的疗效。目的:肛管的鳞状细胞癌(SCCAC)的特征为明确放化疗(CRT)后较高的局部区域失败率(LRF),与肛门生殖器人乳头瘤病毒相关,常在HIV感染中表现。由于西妥昔单抗可加强人乳头状瘤病毒相关口咽SCC患者放疗的效果,因此研究人员假设,将西妥昔单抗添加到CRT中,将

2017年3月,发表在《J Clin Oncol》的一项2期AIDS恶性肿瘤协作试验调查了西妥昔单抗联合放化疗治疗HIV相关肛管癌的疗效。

目的:肛管的鳞状细胞癌(SCCAC)的特征为明确放化疗(CRT)后较高的局部区域失败率(LRF),与肛门生殖器人乳头瘤病毒相关,常在HIV感染中表现。由于西妥昔单抗可加强人乳头状瘤病毒相关口咽SCC患者放疗的效果,因此研究人员假设,将西妥昔单抗添加到CRT中,将降低SCCAC患者的LRF。

方法:45名1~3期SCCAC和HIV感染的患者接受了CRT:45~54Gy放疗针对原发性肿瘤和局部淋巴结,西妥昔单抗每周一次和两个周期的顺铂和氟尿嘧啶共治疗8周。研究设计为检测到3年LRF率至少降低50%(单侧α,0.10;效力,90%),并假设历史数据中的LRF率为35%。

结果:使用预先定义的终点(LRF或无LRF存活,并随访<3年),二项式比例估计得出的3年LRF率为42%(95% CI,28~56%;单侧P=0.9),使用与历史数据相一致的定义和方法的事后分析中,Kaplan-Meier估计得出的LRF率为20%(95% CI,10~37%)。Kaplan-Meier估计得出的3年无进展生存率为72%(95% CI,56~84%),总生存率为79%(95% CI,63~89%)。26%的患者发生4级毒性,4%的患者发生治疗相关死亡。

结论:HIV相关SCCAC可使用明确的CRT治愈。虽然添加西妥昔单抗会造成较低的LRF,但是20%的复发率和26%的4级毒性率表明,继续需要更有效和毒性更小的治疗。

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    2018-05-06 chengjn
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    2017-06-29 zhaojie88
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    2018-03-15 lujian
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    2017-05-28 yzh399

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