培美曲塞
医学
内科学
卡铂
肿瘤科
化疗
危险系数
耐受性
中性粒细胞减少症
白细胞减少症
顺铂
不利影响
置信区间
作者
Shun Lü,Jie Wang,Yan Yu,Xinmin Yu,Yanping Hu,Xinghao Ai,Wei Wang,Xingya Li,Wu Zhuang,Yunpeng Liu,Weidong Li,Jiuwei Cui,Dong Wang,Wangjun Liao,Jianying Zhou,Zhehai Wang,Yuping Sun,Xiusong Qiu,Jie Gao,Yuanyuan Bao,Liang Liang,Mengzhao Wang
标识
DOI:10.1016/j.jtho.2021.05.005
摘要
IntroductionTislelizumab, an anti–programmed cell death protein-1 antibody, was specifically engineered to minimize FcɣR macrophage binding to abrogate antibody-dependent phagocytosis. Compared with chemotherapy alone, tislelizumab plus chemotherapy may improve clinical outcomes in patients with advanced nonsquamous NSCLC (nsq-NSCLC).MethodsIn this open-label phase 3 trial (RATIONALE 304; NCT03663205), patients with histologically confirmed stage IIIB or IV nsq-NSCLC were randomized (2:1) to receive either arm A: tislelizumab plus platinum (carboplatin or cisplatin) and pemetrexed every 3 weeks (Q3Ws) or arm B: platinum and pemetrexed alone Q3W during induction treatment, followed by intravenous maintenance pemetrexed Q3W. The primary end point was progression-free survival (PFS) assessed by an independent review committee; clinical response and safety and tolerability were secondary end points.ResultsOverall, 332 patients (n = 222 [A]; n = 110 [B]) received treatment. With a median study follow-up of 9.8 months, PFS was significantly longer with tislelizumab plus chemotherapy compared with chemotherapy alone (median PFS: 9.7 versus 7.6 mo; hazard ratio = 0.645 [95% confidence interval: 0.462–0.902], p = 0.0044). In addition, response rates were higher and response duration was longer with combination therapy versus chemotherapy alone. Hematologic adverse events (AEs) were common in both treatment arms; the most reported AEs were grades 1 to 2 in severity. The most common grade greater than or equal to 3 AEs were associated with chemotherapy and included neutropenia (44.6% [A]; 35.5% [B]) and leukopenia (21.6% [A]; 14.5% [B]).ConclusionsAddition of tislelizumab to chemotherapy resulted in significantly prolonged PFS, higher response rates, and longer response duration compared with chemotherapy alone, identifying a new potential option for first-line treatment of advanced nsq-NSCLC irrespective of disease stage.
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