Liver Cancer:晚期肝细胞癌的更佳一线+二线序贯疗法

2022-03-02 xiaozeng MedSci原创

ATEZO联合BEVA治疗后继以LENVA或SORA是最有效的序贯治疗策略,中位总生存期分别是24个月和23个月

阿特珠单抗 (ATEZO) 与贝伐单抗 (BEVA) 的联合方案是晚期肝细胞癌 (HCC) 新标准治疗的代表方案。但是,在以免疫治疗为主的一线治疗失败后,如何选择二线治疗仍是一个难题。

考虑到现有证据的匮乏,Giuseppe等研究人员开发了一种基于可用的III期随机临床试验 (RCT) 的模拟模型,以确定风险/效益最佳的治疗序贯策略。

研究流程

研究人员建立了一个Markov模型来评估一线和二线序贯治疗的总生存期(OS)。对比了ATEZO联合BEVA一线治疗后,继以五种不同的二线治疗(索拉非尼[SORA]、乐伐替尼[LENVA]、瑞戈非尼、卡博替尼、雷莫芦单抗)的疗效。主要结果是生命年的增加(LYG)。同时还评估了严重不良事件(SAE)的发生率。增量安全性-有效性比 (ISER) 为严重不良事件的发生率除以两种最有效序贯方案的LYG的差值。

两种序贯治疗方案的总生存率

分析结果显示,ATEZO联合BEVA治疗后继以LENVA(中位总生存期 24个月)或SORA(23个月)是最有效的序贯治疗策略,分别可获得0.50和0.42年的LYG。ATEZO联合BEVA继以SORA还是最安全的序贯治疗(严重不良事件发生率 63%)。

两种序贯治疗方案的增量安全性-有效性比 (ISER)

当LYG的SAE的风险意愿阈值为10%时,72%的病例支持ATEZO+BEVA+二线SORA序贯方案,而当LYG的SAE的风险意愿阈值为30%时,69%的病例支持ATEZO+BEVA+二线LENVA序贯方案。

总之,该模拟模型为正在进行的评估一线ATEZO+BEVA继以二线酪氨酸激酶抑制剂的试验提供了强有力的理论基础。需要来自正在进行的随机对照试验和前瞻性现实世界研究的证据来进一步证明这些晚期肝细胞癌的序贯治疗方案的净健康益处。

原始出处:

Cabibbo Giuseppe,Reig Maria,Celsa Ciro et al. First-Line Immune Checkpoint Inhibitor-Based Sequential Therapies for Advanced Hepatocellular Carcinoma: Rationale for Future Trials.[J] .Liver Cancer, 2022, 11: 75-84.

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