基于人环素的治疗失败后的晚期软组织瘤中特拉贝克丁-奥拉巴里布组合或特拉贝克丁 (TOMAS2):意大利瘤组的一项随机二期研究
L D'Ambrosio1, A Merlini1, A Brunello2
1Department of Oncology, University of Torino, Orbassano, Torino, Italy; AOU San Luigi Gonzaga, Orbassano, Torino, Italy.
概括
特拉贝克丁-奥拉巴里布组合在晚期软组织肉瘤 (STS) 中显示出极小的益处. 然而,PARP1表达性STS和子宫乳腺肌肉瘤的患者经历了显著的改善,这需要进一步的有针对性的研究.
科学领域:
- 在瘤学瘤学.
- 医学研究 医学研究
- 药理学 药理学是指药理学的学科.
背景情况:
- 晚期/转移性软组织肉瘤 (STSs) 代表着一个重要的未满足的临床需求.
- 之前的研究表明,在先进的STS中,trabectedin-olaparib组合的可行性和初步活性.
- 这项试验侧重于在基于人环素的治疗方案后进展的患者.
研究的目的:
- 为了评估结合trabectedin与olaparib在高级软组织肉瘤中的疗效和安全性.
- 为了比较特拉贝克丁-奥拉帕里布组合与特拉贝克丁单一治疗在患有晚期STS的患者.
- 探索治疗反应的潜在预测生物标志物.
主要方法:
- 一个由研究者发起的,开放的,II期随机试验.
- 成年患者的晚期STS在至少一个基于环素的治疗方案后进展随机.
- 治疗臂:trabectedin-olaparib组合与trabectedin单一治疗. 主要终点:6个月无进展生存率 (PFS6m).
主要成果:
- 特拉贝克丁-奥拉巴里布组合显示了改善PFS (3.9 vs. 2.9个月;HR 0.722,P=0.081) 和PFS6m (32% vs. 28%) 的趋势.
- 亚组分析显示,在子宫乳腺肌肉瘤和PARP1表达性STS患者中显著益处.
- 在组合治疗中观察到更高的≥3级血液毒性的比率.
结论:
- 特拉贝克丁-奥拉帕里布组合在整体STS群体中显示出极小的益处.
- 在特定的子组中观察到实质性的益处:PARP1表达的STS和子宫乳腺肌肉瘤.
- 对这些患者群体进行进一步的组织学和生物标志物驱动的研究得到了支持.
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