Ivonescimab combined with chemotherapy in patients with EGFR-mutant non-squamous non-small cell lung cancer who progressed on EGFR tyrosine-kinase inhibitor treatment (HARMONi-A): A randomized, double-blind, multi-center, phase 3 trial.

作者：Li Zhang, Wen‐Feng Fang, Yuanyuan Zhao, Yongzhong Luo, Runxiang Yang, Yan Huang, Zhiyong He, Hui Zhao, Mingjun Li, Kai Li, Qibin Song, Xiaobo Du, Yulan Sun, Wei Li, Fei Xu, Zhiyu Wang, Kunning Yang, Yun Fan, Wenting Li, Yu Xia · 发表于：Journal of Clinical Oncology · 年份：2024 · DOI：10.1200/jco.2024.42.16_suppl.8508 · 被引用次数：14 · 研究领域：Lung Cancer Treatments and Mutations、Lung Cancer Research Studies、HER2/EGFR in Cancer Research

8508 Background: Ivonescimab (AK112/SMT112) is a anti-PD-1/VEGF bispecific antibody. Previous phase I/II clinical studies have shown potential efficacy of ivonescimab in NSCLC patients with EGFR mutations who had failed prior EGFR-TKIs therapies. This phase 3 study aimed to evaluate and confirm the efficacy and safety of ivonescimab combined with chemotherapy versus chemotherapy alone in this population. Methods: Patients were randomized 1:1 to receive ivonescimab (20 mg/kg) plus pemetrexed (500 mg/m 2 ) and carboplatin (AUC 5) or placebo plus chemotherapy once every 3 weeks for four cycles, with stratification according to the third-generation EGFR-TKI (received vs not received) and brain metastases (presence vs absence), followed by maintenance therapy of ivonescimab and pemetrexed or placebo and pemetrexed. The primary endpoint was progression-free survival (PFS) in intention-to-treat (ITT) population assessed by independent radiographic review committee (IRRC) per RECIST v1.1. Here we report the results of the first planned interim analysis. Results: Total 322 patients were randomized (161 to the ivonescimab plus chemotherapy arm, 161 to the placebo plus chemotherapy arm). 86.3% versus 85.1% of patients had received the third generation EGFR-TKIs treatment, 21.7% versus 23.0% of patients had brain metastases. As of March 10, 2023, median follow up time was 7.89 months. PFS was significantly improved in the ivonescimab plus chemotherapy arm (HR 0.46 [0.34, 0.62], P < 0....