Article
作者: Duanmu, Wenhao ; Yoneshima, Yasuto ; Wu, Ling ; Nishino, Kazumi ; Li, Xingya ; Lu, Shun ; Goto, Koichi ; Li, Fugen ; Zang, Aimin ; Zhou, Jianya ; Zhang, Li ; Shi, Meiqi ; Li, Lu ; Li, Xiaoling ; Yu, Yongfeng ; Fang, Jian ; Huang, Dingzhi ; Zhang, Wei ; Wang, Yibin ; Bai, Chong ; Sakakibara, Jun ; Zhou, Chengzhi ; Cui, Jiuwei ; Cao, Lejie ; Zhong, Diansheng ; Yu, Yan ; Zhang, Yiping ; Shu, Yongqian ; Wang, Xiuwen ; Zhao, Yanqiu ; Dong, Xiaorong ; Min, Xuhong
Background:Gumarontinib has previously shown activity in patients with non-small cell lung cancer (NSCLC) harboring MET exon 14 skipping mutation (METex14). We hereby report the updated results from the phase II stage of GLORY study after additional 18-month follow-up.
Methods:The single-arm, multicenter, open-label, phase II of the GLORY study was conducted at 42 centers across China and Japan. Patients with locally advanced or metastatic METex14-positive NSCLC received gumarontinib 300 mg orally once daily until disease progression or intolerable toxicity. Eligible patients had failed one or two prior lines of therapy (not including a MET inhibitor) and had no genetic alterations targetable with standard therapies. The primary endpoint was the objective response rate (ORR) by the blinded independent review committee (BIRC) per Response Evaluation Criteria in Solid Tumors version 1.1. The study was registered at ClinicalTrials.gov (NCT04270591).
Results:The phase II stage of GLORY study included 84 patients. As of the data cutoff date on October 28, 2023, the ORR assessed by BIRC was 65.8% [95% confidence interval (CI): 54.3% to 76.1%], with 70.5% (95% CI: 54.8% to 83.2%) in treatment-naïve and 60.0% (95% CI: 42.1% to 76.1%) in pre-treated populations. The median duration of response (DOR) assessed by BIRC was 8.3 (95% CI: 6.2 to 18.3) months, the median progression-free survival (PFS) was 7.7 (95% CI: 7.6 to 9.7) months, and the median overall survival (OS) was 19.4 (95% CI: 12.1 to 30.1) months, with a median OS of 25.4 [95% CI: 11.7 to not evaluable (NE)] months in treatment-naïve population and 16.3 (95% CI: 8.7 to NE) months in the pre-treated population. The most common treatment-related adverse events (any grade) were oedema (67/84, 79.8%) and hypoalbuminemia (32/84, 38.1%). Grade ≥3 treatment-related adverse events occurred in 53.6% (45/84) patients. Treatment-related adverse events leading to permanent discontinuation occurred in 8.3% (7/84) of patients.
Conclusions:Gumarontinib showed promising efficacy and acceptable toxicities in East Asian population, with a rapid onset of action, substantial and durable response, which can be converted into a long-term survival benefit.