ASCO 2014:郭军谈PD-1抗体治疗黑色素瘤的2项试验

2014-05-31 CMT肿瘤 医学论坛网

年入选ASCO年会新闻发布会的黑色素瘤研究共有3项。除我们5月14日推送的有关ipilimumab的一项研究外,还有两项关于PD-1的研究。我们特邀北京大学肿瘤医院郭军教授继续跟我们分享关于这两项研究的故事。 研究一 题目:在411例黑色素瘤患者中抗PD-1单抗MK-3475的有效性和安全性(Efficacy and safety of the anti-PD-1 m

年入选ASCO年会新闻发布会的黑色素瘤研究共有3项。除我们5月14日推送的有关ipilimumab的一项研究外,还有两项关于PD-1的研究。我们特邀北京大学肿瘤医院郭军教授继续跟我们分享关于这两项研究的故事。

研究一

题目:在411例黑色素瘤患者中抗PD-1单抗MK-3475的有效性和安全性(Efficacy and safety of the anti-PD-1 monoclonal antibody MK-3475 in 411 patients (pts) with melanoma (MEL).)

摘要号:# LBA 9000^

报告时间:2014年6月2日 3:00-6:00 PM CDT(美国中部夏令时间)

报告者:美国加州大学David Geffen医学院 Antoni Ribas

Session Title:Melanoma/Skin Cancers

Session Type:Oral Abstract Session

研究二

题目:在晚期黑色素瘤中不同BRAF突变(MT)状态下nivolumab(NIVO, 抗PD-1, BMS-936558, ONO-4538)和ipilimumab (IPI)同期治疗的生存、持续缓解和活性(Survival, response duration, and activity by BRAF mutation (MT) status of nivolumab (NIVO, anti-PD-1, BMS-936558, ONO-4538) and ipilimumab (IPI) concurrent therapy in advanced melanoma (MEL))

摘要号:# LBA 9003^

报告时间:2014年6月2日 3:00-6:00 PM CDT(美国中部夏令时间)

报告者:美国耶鲁(Yale)癌症中心 Mario Sznol

Session Title:Melanoma/Skin Cancers

Session Type:Oral Abstract Session

CSCO黑色素瘤专家委员会主任委员,CSCO肾癌专家委员会主任委员,国际黑色素瘤研究联盟亚太地区主席

专家点评

PD-1抗体将可能吹起黑色素瘤治疗中“胜利的号角”

PD-1已被证实可能在多种肿瘤的治疗中发挥作用,其相关研究正在如火如荼地进行中。在今年ASCO年会上,我相信PD-1一定会成为最大亮点之一。而对于黑色素瘤的治疗,可以说抗PD-1抗体将吹响“胜利的号角”。相信接下来的研究探索将引领其他肿瘤的治疗也进入这个非常奇妙的领地。

之前,一些关于抗PD-1抗体的研究已经公布了早期结果,但多是一些小宗报道。这次ASCO年会上将要报告的两项较大规模抗PD-1抗体研究,分别探讨了抗PD-1抗体序贯用药[An analysis exploring the use of the anti-PD-1 antibody MK-3475(lambrolizumab) in patients with advanced melanama, and the impact of prior ipilimumab therapy.( #LBA9000^)]及其与免疫制剂联用[注:The first long-term survival data from an early-phase trial assessing the combination of two immunotherapies, the anti-PD-1 antibody nivolumab and ipilimumab, for advanced melanoma.( #LBA9003^)]的疗效。

从早期结果来看,这两项研究的结果很可能是阳性结果。而且,联合用药的有效率非常高,早期的Ⅰ期结果甚至能达到17%的完全缓解(CR)率,部分缓解(PR)+CR率能达到50%~60%,这是非常“神奇”的。要知道,过去化疗的PR率都达不到10%。所以,这个一定会引起“轩然大波”,而且会成为未来的重要发展趋势。

无论是联合还是序贯用药,目前看起来PD-1都将是未来黑色素瘤免疫治疗的重要方向。虽然从早期结果来看序贯用药的疗效劣于联合用药,但对于有些患者来说,抗细胞毒性T细胞抗原4(CTLA-4)单抗ipilimumab失败后,抗PD-1抗体仍然是一个不错的选择。从早期研究结果也看出来,在CTLA-4单抗失败后仍然有相当多的患者对抗PD-1抗体有反应,差不多能达到20%~30%。因此,这两项研究将对大会产生重要反响。

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    2014-11-07 sunylz
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    2014-09-15 quxin068
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