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JAMA:易普利单抗联用沙格司亭与单用易普利单抗对转移性黑色素瘤的疗效对比

2014-11-06 MedSci译 MedSci原创

据11月5日刊登在《美国医学会杂志》中的一则研究披露,在罹患转移性黑色素瘤的患者中,与单用易普利姆玛相比,沙格司亭加易普利姆玛的联合疗法可导致更长久的总体存活时间和较低的毒性反应,但这两种疗法在无肿瘤进展性存活上则没有差别。 波士顿市达纳 - 法伯癌症研究所的F. Stephen Hodi, M.D.与同事开展了一个2期临床试验;在该试验中,245名患有无法切除(无法通过手术切除)的II

研究背景:


易普利单抗(Ipilimumab)能够通过封闭细胞毒性T淋巴细胞相关抗原4(Cytotoxic
T-lymphocyte-associated antigen 4,CTLA-4)延长转移性黑色素瘤患者的生存期。CTLA-4的封闭与分泌型粒细胞-巨噬细胞集落刺激因子(granulocyte-macrophage
colony-stimulating factor ,GM-CSF)肿瘤疫苗的联合应用在临床前治疗模型中表现出协同作用效应。然而,系统应用GM-CSF(沙格司亭)能否提高对CTLA-4的封闭仍有待进一步研究。
 
研究对象:

对比易普利单抗联用沙格司亭与单用易普利单抗对治疗转移性黑色素瘤总体生存率的影响
 
研究设计:

东部肿瘤协作组(ECOG)进行了一项2期随机临床试验。该项目选择了从2010年12月28日的直到2011年7月28日,手术无法切除的III期或IV期黑色素瘤患者(共245名)作为试验对象。入组条件还包括之前经过至少1个疗程的治疗、无中枢神经系统转移以及ECOG评分0或1。
 
试验方式:

受试者被随机分配成两组,一组患者(共123名)在为期21天的治疗周期中的第1天静脉使用10
mg/kg易普利单抗治疗的同时,加上在第1-14天皮下使用250ug 沙格司亭进行治疗,另一组患者(共122名)则单用易普利单抗进行治疗。易普利单抗治疗每4个周期后,必须维持治疗一段时间。
 
主要结果及监测项目

主要终点:总生存期长度的比较。 次要终点:无进展生存(PFS),反应率、安全性及耐受性。
 
研究结果:

中位随访时间为13.3个月(从0.03个月至19.9个月)。截止至2012年12月,易普利单抗联用沙格司亭治疗的中位总生存期为17.5个月(95%置信区间为14.9个月至未死亡),而单用易普利单抗治疗的中位总生存期则为12.7个月(95%置信区间为10.0个月至未死亡)。两药联用的1年存活率为68.9%(95%置信区间为60.6%~85.5%),而单用易普利单抗治疗的1年存活率则为52.9%(95%置信区间为43.6%-62.2%),单侧分层Log-Rank检验P值为0.01,死亡率的比值比为0.64(单侧90%重复置信区间)。计划的中期分析是在预期的事件发生69.8%(即在149个预计死亡人数中发现了104个)时进行。

计划的中期分析通过O'Brien-Fleming界值的方法确定安全性以提高总生存率。两组在无进展生存期(PFS)上没有差异。易普利单抗联用沙格司亭治疗的PFS为3.1个月(95%置信区间为2.9个月至4.6个月),而单用易普利单抗治疗的PFS则为3.1个月(95%置信区间为2.9个月至4.0个月)。两药联用治疗组3-5级不良事件发生率为44.9%(95% 置信区间为35.8%~54.4%),单药治疗组则为58.3%(95%置信区间为49%
~67.2%),两组差异双侧检验P 值为0.04。
 
研究结论:

我们的研究发现,对于手术无法切除的III期或IV期黑色素瘤患者,联用易普利单抗及沙格司亭较单用易普利单抗能够得到更长的总体生存期及较低的毒性作用,但两者的无进展生存期无明显差异。以上发现需要在具有更长的随访时间的更大规模相关研究中进一步得到证实。

本文是MedSci原创编译整理,欢迎转载!转载请注明来源并附原文链接。谢谢!

原始出处:

Hodi FS1, Lee S2, McDermott DF3, Rao UN4, Butterfield LH5, Tarhini AA5, Leming P6, Puzanov I7, Shin D2, Kirkwood JM5.Ipilimumab plus sargramostim vs ipilimumab alone for treatment of metastatic melanoma: a randomized clinical trial.JAMA. 2014 Nov 5;312(17):1744-53. doi: 10.1001/jama.2014.13943.

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    2014-11-06 sunylz
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Cell Rep:不同肿瘤细胞可相互协作促进恶性黑色素瘤的扩散

近日,刊登在国际杂志Cell Reports上的一篇研究论文中,来自曼彻斯特大学的研究人员表示,皮肤癌细胞可以互相合作实现在机体中的快速扩散,某些黑色素瘤细胞生长速度尤其之快,但这些癌细胞却并不擅长于侵袭周围的组织,而其它黑色素瘤细胞则完全相反,它们虽然生长缓慢但是可以快速实现周围组织的侵袭,相关研究为开发新型药物来治疗黑色素瘤提供了一定帮助。在肿瘤组织中一种名为捎带细胞(Piggy-backin

CSCO 2014:马建辉:更多关注,更多交流,更多成就

        中国医学科学院肿瘤医院、肾癌及泌尿肿瘤论坛策划负责人:马建辉教授 广纳贤士,不断成长 在早年的CSCO会场上,肾癌及泌尿肿瘤很少被肿瘤医生所关注,因为泌尿系统肿瘤中的肾癌、膀胱癌及前列腺癌等多属于化疗“抗拒”型肿瘤,且在肿瘤内科医生中真正关心泌尿系统肿瘤或者从事相关内科研究者其实并不多。所以泌尿

皮肤有痣?警惕患黑色素瘤风险!

黑色素瘤是皮肤癌中最常见的,但最严重的类型。根据墨尔本大学、牛津大学和Epworth HealthCare专家公布的一项研究证实:假如你皮肤有痣,患黑色素瘤的风险会翻两番。 研究人员比较两组人的医疗记录,其中一组271656人在因任何疾病而进行医院访问时被记录有痣,另一组10130417人没有痣记录。两组比较发现,相比没有记录痣的一组,有痣记录的一组更容易患黑素瘤,风险增加约4.

Ann Surg Oncol:26%黑色素瘤晚期患者肿瘤完全消失

在一项二期临床试验中,一种抗癌新药对51%的受试者产生了疗效——这些黑色素瘤三期和四期的患者中,有26%的人在治疗期间得到完全缓解(癌症完全消失)。而且这一切就发生在短短16周的治疗过程中,表明这种药物具有治疗特定癌症的巨大潜力。 这项研究的报告于10月28日发表在《外科肿瘤学年鉴》(Annals of Surgical Oncology)上。在试验过程中,研究人员把PV-10(一种小分子消

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