EAU18∣前沿速递,龚侃教授梳理泌尿肿瘤领域热点研究

2018-03-24 佚名 肿瘤瞭望

侃教授梳理泌尿肿瘤领域热点研究

肾癌

小肾癌主动监测安全吗?

小肾癌的自然病程、处理方案和临床预后一直是国内外同行关注的重要临床问题,目前已有不少相关报道。本次EAU会议中,来自意大利的Alessandro Volpe教授介绍了欧洲肾癌主动监测研究(EASE研究)进展。研究主要目标是为评估偶发的、病理明确的、肿瘤直径小于4cm的肾细胞癌患者进行主动监测的总生存,并与无肾细胞癌的普通人群比较;次要目标是观察肿瘤特异性生存和无进展生存期以及影响肿瘤生长速率的相关因素。该研究计划纳入400位患者,来自欧洲50余个科研机构。EASE研究将明确小肾癌的预后以及影响预后的关键因素,为临床实践中选择主动监测或手术治疗提供证据支持。针对亚洲人群的小肾癌自然病程研究也应该尽早提上日程。

北大泌尿所单中心回顾分析了1276例小肾癌的临床病理特征,发现直径大于2cm的肿瘤与小于2cm的肿瘤比较,其分期更高,分级更差,且更易发生转移。该研究提示肿瘤直径大于2cm,且影像学证实恶性的小肾癌不宜选取非手术干预的治疗策略。随后,进一步研究了接受主动监测的45例肾癌患者的自然病程和影响肿瘤生长的因素,结果显示肾透明细胞癌的生长速度快于其它类型;分级高、Ki-67和p53阳性的肿瘤生长速率更快。北大泌尿所团队未来将对国人散发性小肾癌、遗传性肾癌的自然病程进行跟踪随访,期待有更多的研究数据与国内外同道分享。


非转移肾癌NSS术后需要辅助靶向治疗吗?

肾癌术后靶向药物等辅助治疗一直是临床医生关注的重要问题,目前已开展5项相关的大型临床研究;其中S-TRAC、ASSURE和PROTECT三项研究已经公布其临床治疗结果,但此三项研究并未得出明确的研究结论。在本届EAU会议上,一项来自意大利的研究纳入S-TRAC、ASSURE和PROTECT三项研究数据,应用meta分析比较高危非转移肾癌行肾部分切除术后接受辅助治疗的预后,结果显示肾癌术后加辅助治疗并未改善OS,对DFS的作用尚不明确,对于这部分患者他们并不推荐应用TKI辅助治疗。因此,在临床中,肾癌术后的辅助靶向药物治疗需谨慎。

尿路上皮癌

免疫检查点抑制剂可有效补充尿路上皮癌治疗?

化疗是尿路上皮癌治疗中的重要方式,但部分患者无法耐受传统的化疗方案,预后较差。因此,探索新的治疗方式是临床中亟待解决的问题。本次EAU来自西班牙的Keynote-052研究,报道了帕博利珠单抗(Pembrolizumab,PD-1抑制剂)在身体状况不佳且不适用顺铂的老年尿路上皮癌患者一线治疗效果,结果显示帕博利珠单抗的疗效和安全性在各年龄段和身体状况亚组中无明显差异。因此,临床中对于不能耐受化疗的晚期尿路上皮癌患者免疫治疗也是一种可选的方案。

浅表性膀胱癌进行电切术后极易复发,常规的膀胱灌注化疗药物效果并不理想。近年来免疫治疗在尿路上皮癌中的应用研究明显增加,但在卡介苗无效的高危非肌层浸润性膀胱癌中的作用尚不清楚。本次会议中来自美国的研究团队介绍了KEYNOTE-057Ⅱ期临床试验方案,该研究的顺利进行将明确免疫检查点抑制剂帕博利珠单抗在上述患者中的疗效,最终的研究结果值得期待。



前列腺癌

如何提供精准而实用的诊疗策略?

前列腺癌是西方发达国家男性最为常见的恶性肿瘤;而我国的前列腺癌发病趋势也不容乐观。2017年中国国家癌症中心发布:男性发病前十位恶性肿瘤中膀胱癌、前列腺癌分别位列第6、7位;北京及上海地区的前列腺癌在泌尿生殖系统肿瘤中排第一位。

本次大会共接收419篇前列腺癌相关摘要,可见前列腺癌仍然是大家研究的热点。主要研究问题包括应用多参数核磁的前列腺穿刺活检、前列腺癌相关分子标志物、晚期前列腺癌内分泌治疗去势水平的定义以及对现有指南的辩证解读。临床实践中选择适合患者的诊疗策略,既要结合循证证据,也要综合患者个体情况。总体上前列腺癌的研究众多,如何提供精准的、切合临床实践的个性化诊疗是本届会议探讨的主旨。


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    2018-04-13 839640778
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    2018-03-24 changjiu

    学习一下谢谢

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