马里佐米布用于新诊断的质母细胞瘤患者:一个随机的第三阶段试验
Patrick Roth1,2, Thierry Gorlia3, Jaap C Reijneveld4
1Department of Neurology and Brain Tumor Center, University Hospital Zurich, Zurich, Switzerland.
Neuro-oncology
|March 19, 2024
概括
将marizomib添加到标准质母细胞瘤治疗中并没有改善生存结果和增加毒性. 这种泛蛋白酶体抑制剂对新诊断的患者的整体存活率或无进展存活率没有显著的益处.
科学领域:
- 神经瘤学神经瘤学
- 临床癌症研究 临床癌症研究
- 药物开发 药物开发
背景情况:
- 质母细胞瘤的标准治疗包括手术,放射治疗 (RT) 和temozolomide (TMZ) 化疗.
- 蛋白酶体是癌细胞中一个关键的生物标.
- 马里佐米布是一种新型泛蛋白酶体抑制剂,旨在穿越血脑屏障.
研究的目的:
- 评估新诊断的质母细胞瘤患者在标准TMZ/RT→TMZ治疗中添加marizomib的疗效.
- 为了比较marizomib手臂和标准治疗手臂之间的整体存活率 (OS) 和无进展存活率 (PFS).
- 评估MGMT促进剂未甲基化瘤患者的特定亚组的结果.
主要方法:
- 进行了一项多中心,随机,受控,开放的第三阶段优越性试验 (EORTC 1709/CCG CE.8).
- 749名新诊断的质母细胞瘤患者被随机分配1:1接受标准治疗或马里佐米布加标准治疗.
- 资格标准包括年龄>18岁和卡诺夫斯基绩效状态>70.
主要成果:
- 在marizomib手臂 (16.5个月) 和标准手臂 (17个月;HR=1.04;P=.64) 之间没有观察到OS的显著差异.
- 无进展生存期 (PFS) 也没有统计学上的差异 (6.3个月与6.0个月;HR=0.97;P=.67).
- 在患有MGMT促进剂非甲基化瘤的患者中,OS在两臂之间没有差异 (15.1个月与14.5个月;HR=1.13;P=.27).
- 在marizomib手臂中报告了较高的CTCAE等级3/4治疗出现的不良事件.
结论:
- 在标准的基于temozolomide的放射化疗中添加marizomib并不能改善新诊断的质母细胞瘤中的OS或PFS.
- 与标准治疗相比,添加marizomib导致毒性增加.
- 根据这些发现,对于这种患者群体,不建议使用marizomib作为标准治疗的补充剂.
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