在先进软组织肉瘤患者中对多克索鲁比加杜尔瓦卢马布组合进行相对分析的IB/II期试验
Kum-Hee Yun1, Nam Suk Sim2, Su-Jin Shin3
1Yonsei Cancer Center Seoul Korea (South), Republic of.
概括
这项研究表明,将多克索鲁比辛与杜尔瓦卢马布 (PD-L1抑制剂) 结合在一起,是晚期软组织肉瘤 (STS) 的有前途治疗方法. 该组合在患有晚期STS的患者中表现出良好的疗效和可接受的安全性.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 软组织肉 Sarcoma 研究研究.
背景情况:
- 软组织肉瘤 (STS) 是一种罕见的癌症.
- 对于先进的STS的标准治疗方法往往具有局限性.
- 需要新的治疗策略来改善STS患者的治疗结果.
研究的目的:
- 评估将多克索鲁比辛与杜尔瓦卢马布 (PD-L1抑制剂) 结合使用的疗效和安全性,用于先进的未曾服用过 antracycline 的 STS.
- 为了确定对这种组合疗法的反应的预测生物标志物.
主要方法:
- 进行了一项开放的IB/II期研究 (NCT03802071).
- 纳入患者有转移性/复发性STS,以前没有接受过 antracyclines 或 PD-1/PD-L1 抑制剂的治疗.
- 第IB阶段确定了多克索鲁比辛 (75 mg/m2) 加上杜尔瓦卢马布 (1500 mg每3周一次) 的安全性和耐受性;第二阶段评估了疗效,客观反应率 (ORR) 是主要终点.
主要成果:
- 推的第二期多克索鲁比辛剂量为75mg/m2.
- 在41名可评估患者中,ORR为31.7% (1个完全响应,12个部分响应).
- 无进展生存时间 (PFS) 中位数为7.6个月,总生存时间中位数为23.8个月.
- 没有RTK-RAS通路变化和高PD-1表达预测了更长的PFS.
结论:
- 多克索鲁比加杜尔瓦卢马布在先进的STS中表现出有希望的疗效.
- 组合疗法表现出可接受的安全性和毒性概况.
- 探索性分析确定了患者选择的潜在生物标志物.
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