AACR 2015:女性患者福音!Olaparib联合Carboplatin对卵巢、乳腺癌初显疗效

2015-04-22 Zhang JL译 MedSci原创

根据2015年4月18到22日举行的AACR年会中的一项Ⅰ期临床试验结果,olaparib (Lynparza)结合卡铂化疗对并没有显著增加女性癌症并患者所经历的副作用,两药的联合治疗则在这些患者中显现出初步临床治疗效应。“PARP(poly ADP-ribose polymerase)抑制剂olaparib最近被FDA批准用于治疗含有一个BRCA突变的卵巢癌女性,” 女性恶性肿瘤学专家、马里兰州

根据2015年4月18到22日举行的AACR年会中的一项Ⅰ期临床试验结果,olaparib (Lynparza)结合卡铂化疗对并没有显著增加女性癌症并患者所经历的副作用,两药的联合治疗则在这些患者中显现出初步临床治疗效应。

“PARP(poly ADP-ribose polymerase)抑制剂olaparib最近被FDA批准用于治疗含有一个BRCA突变的卵巢癌女性,” 女性恶性肿瘤学专家、马里兰州贝塞斯达国家癌症研究所Victoria L. Chiou博士说,“研究证实两药联用可能增加患者对olaparib的受益,这一点非常重要。那么,问题来了:什么样的两药联用方案能够使olaparib和卡铂对促进DNA损伤的抗肿瘤作用达到最大化,并减少临床毒性。”

“我们发现,病人们在整个治疗过程中都没有明显感受到副作用的影响,”Chiou说,“此外,我们在女性乳腺癌和卵巢癌的研究中发现一个称为‘肿瘤收缩’的药物治疗计划也是安全并且有初步的治疗反应。事实上,含BRCA突变的卵巢癌女性患者在我们的试验中接受两药联用治疗后看到了60%的总体响应率,这是高于单用olaparib治疗含BRCA突变卵巢癌的约30%反应率。”

Chiou解释说,研究小组关注他们的临床前发现——olaparib预处理治疗将减少卡铂所致的携带BRCA1突变的肿瘤细胞DNA损伤,他们启动第一阶段临床试验是为了探索是否存在一个最佳的方式来联用olaparib
和卡铂。

在该临床试验中,研究人员募集了59名妇女癌症复发患者,其中卵巢癌47例,三阴性乳腺癌10例,1例子宫癌肉瘤和1例子宫内膜癌。26例卵巢癌患者和4例三阴性乳腺癌患者被检测出BRCA突变。

病人被随机分为两个治疗组:一组患者接受olaparib-卡铂在周期一和卡铂-olaparib在周期二;另一组患者接受卡铂-olaparib在周期一,olaparib-卡铂在周期二。从第三个周期开始,病人接受了同样的治疗方案。毒性分析在每个治疗周期和响应结束时的每两个周期进行。组内和组间比较3/4级不良事件的频率均没有显著差异。最常见的3/4级不良事件是中性粒细胞减少和贫血。

Chiou的最新结果表明,每21天应用卡铂联合7天应用olaparib,初步显示对经治乳腺癌和卵巢癌患者有一定的临床反应。在54例患者中,研究人员在一个三阴性乳腺癌患者中观察到持续了23个月的完整反应,而在20个卵巢癌患者和4个三阴性乳腺癌患者中则观察到部分反应。

“我们目前仍有两个病人在研究中,”Chiou说,“其中一个女患者已经有持续超过19个月的局部响应,而另一个女患者已经参与研究超过12个月并一直表现出稳定的病情。”

 “我非常兴奋地分享这些发现。这个临床试验是美国国家癌症研究所女性恶性肿瘤临床试验的一个大分支,”Chiou继续说道,“每一天,我的团队都在努力从板凳上到床边为乳腺癌和卵巢癌的女性带来新的治疗想法。仍有更多的工作需要做,这仅仅是个开始。”

原始出处:


2015 AACR Annual Meeting News:Olaparib–Carboplatin Combination Showed Early Signs of Clinical Activity Against Ovarian and Triple-negative Breast Cancers


本文系Medsci原创编译整理!转载需要先获得授权,并附原文链接。谢谢!

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    2015-06-20 LSJ122
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    2016-02-22 刘阔
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    2015-04-24 zhaojie88
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    2015-04-24 10518094zz
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    2015-04-24 Luyuxie_14

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