Lazertinib Versus Gefitinib as First-Line Treatment in Patients With EGFR -Mutated Advanced Non–Small-Cell Lung Cancer: Results From LASER301

作者：Byoung Chul Cho, Myung‐Ju Ahn, Jin Hyoung Kang, Ross A. Soo, Thanyanan Reungwetwattana, James Chih‐Hsin Yang, İrfan Çiçin, Dong‐Wan Kim, Yi‐Long Wu, Shun Lü, Ki Hyeong Lee, Yong‐Kek Pang, Anastasia Zimina, Chin Heng Fong, Elena Poddubskaya, Ahmet Sezer, Soon Hin How, Pongwut Danchaivijitr, Yukyung Kim, Yeji Lim, Taewon An, Hana Lee, Hae Mi Byun, Bojan Zarić · 发表于：Journal of Clinical Oncology · 年份：2023 · DOI：10.1200/jco.23.00515 · 被引用次数：144 · 研究领域：Lung Cancer Treatments and Mutations、Melanoma and MAPK Pathways、Lung Cancer Diagnosis and Treatment

PURPOSE Lazertinib is a potent, CNS-penetrant, third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. This global, phase III study (LASER301) compared lazertinib versus gefitinib in treatment-naïve patients with EGFR-mutated (exon 19 deletion [ex19del]/L858R) locally advanced or metastatic non–small-cell lung cancer (NSCLC). PATIENTS AND METHODS Patients were 18 years and older with no previous systemic anticancer therapy. Neurologically stable patients with CNS metastases were allowed. Patients were randomly assigned 1:1 to lazertinib 240 mg once daily orally or gefitinib 250 mg once daily orally, stratified by mutation status and race. The primary end point was investigator-assessed progression-free survival (PFS) by RECIST v1.1. RESULTS Overall, 393 patients received double-blind study treatment across 96 sites in 13 countries. Median PFS was significantly longer with lazertinib than with gefitinib (20.6 v 9.7 months; hazard ratio [HR], 0.45; 95% CI, 0.34 to 0.58; P < .001). The PFS benefit of lazertinib over gefitinib was consistent across all predefined subgroups. The objective response rate was 76% in both groups (odds ratio, 0.99; 95% CI, 0.62 to 1.59). Median duration of response was 19.4 months (95% CI, 16.6 to 24.9) with lazertinib versus 8.3 months (95% CI, 6.9 to 10.9) with gefitinib. Overall survival data were immature at the interim analysis (29% maturity). The 18-month survival rate was 80% with lazertinib and 72% with gefitinib ...