Br J Cancer:特泊替尼tepotinib与索拉非尼sorafenib对晚期肝细胞癌患者的治疗对比

2021-05-23 xiaozeng MedSci原创

肝细胞癌(HCC)作为成人中最常见的原发性肝癌类型,其发生率随着慢性肝病发病率的升高而升高。

肝细胞癌(HCC)作为成人中最常见的原发性肝癌类型,其发生率随着慢性肝病发病率的升高而升高。先前唯一被批准用于晚期HCC的靶向全身治疗药物为非选择性多激酶抑制剂索拉非尼(sorafenib)。然而该药物仅对患者的总体生存期(OS)有所改善。

目前较新的一线治疗药物选择包括多激酶抑制剂乐伐替尼(lenvatinib)和免疫疗法阿特珠单抗(atezolizumab)(与贝伐单抗bevacizumab联合),这些药物目前已根据来自3期随机试验与索拉非尼的阳性数据而获得批准。

该开放性1b/2期研究旨在评估高度选择性的MET抑制剂特泊替尼(tepotinib)在未进行全身抗癌治疗(SACT)的MET过表达的晚期肝细胞癌(aHCC)亚洲患者中的作用。


该研究分为两个阶段,患有aHCC的1b期患者每日口服一次特泊替尼(300、500或1,000mg)。试验的主要终点是剂量限制毒性(DLT)和不良事件(AE)。

IRC评估TTP(2期研究)

在2期研究中,将MET过表达且未进行SACT的aHCC患者随机分为特泊替尼(推荐2期剂量,RP2D)或索拉非尼400mg,每日2次治疗。主要终点为独立评估进展时间(TTP)。


结果显示,在1b期(n=27)患者中,没有DLT的发生;推荐2期剂量(RP2D)为500μmg。在2期(n=90,每组45例患者)患者中,达到了主要终点:特泊替尼比索拉非尼的TTP显著更长(中位时间为2.9对1.4个月)。患者的无进展生存期和客观反应也显示出特泊替尼治疗更有利。 进一步的研究显示,特泊替尼治疗组中,与治疗相关的≥3级不良事件的发生率为28.9%,而索拉非尼为45.5%。

2期研究的Kaplan-Meier曲线分析

总而言之,该研究结果揭示,相比于索拉非尼治疗,特泊替尼能够改善患者的TTP,且在未接受SACT的MET过表达aHCC亚洲患者中,其耐受性良好。


原始出处:

Ryoo, BY., Cheng, AL., Ren, Z. et al. Randomised Phase 1b/2 trial of tepotinib vs sorafenib in Asian patients with advanced hepatocellular carcinoma with MET overexpression. Br J Cancer (10 May 2021).

 

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    2021-12-04 xjy02
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