作者
Antonio Passaro,Jie Wang,Yan Wang,S.-H. Lee,Barbara Melosky,Jin‐Yuan Shih,Jialei Wang,Keisuke Azuma,O. Juan-Vidal,Manuel Cobo,Enriqueta Felip,Nicolas Girard,A. Cortot,Raffaele Califano,Federico Cappuzzo,Scott Owen,Sanjay Popat,Ju Le Tan,Jorge Salinas,Pascale Tomasini,Ryan D. Gentzler,W.N. William,Karen L. Reckamp,Toshiaki Takahashi,Sandip Ganguly,Dariusz M. Kowalski,Alessandra Bearz,Melanie Mackean,P. Barala,A.B. Bourla,Angela Girvin,James Greger,Dawn Millington,M. Withelder,John Xie,Tao Sun,Shalin Shah,B. Diorio,Roland Knoblauch,Joshua Bauml,Rosario García Campelo,Byoung Chul Cho
摘要
BackgroundAmivantamab plus carboplatin-pemetrexed (chemotherapy) with and without lazertinib demonstrated antitumor activity in patients with refractory EGFR-mutated advanced non-small cell lung cancer (NSCLC) in phase 1 studies. These combinations were evaluated in a global phase 3 trial.Patients and methodsA total of 657 patients with EGFR-mutated (exon 19 deletions or L858R) locally advanced or metastatic NSCLC after disease progression on osimertinib were randomized 2:2:1 to receive amivantamab-lazertinib-chemotherapy, chemotherapy, or amivantamab-chemotherapy. The dual primary endpoints were progression-free survival of amivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy versus chemotherapy. During the study, hematologic toxicities observed in the amivantamab-lazertinib-chemotherapy arm necessitated a regimen change to start lazertinib after carboplatin completion.ResultsAll baseline characteristics were well balanced across the 3 arms, including by history of brain metastases and prior brain radiation. Progression-free survival was significantly longer for amivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy versus chemotherapy (hazard ratio for disease progression or death [HR], 0.48 and 0.44, respectively; P<0.001 for both; median of 6.3 and 8.3 versus 4.2 months, respectively). Consistent PFS results were seen by investigator assessment (HR, 0.41 and 0.38 for amivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy, respectively; P<0.001 for both; median of 8.2 and 8.3 versus 4.2 months, respectively). Objective response rate was significantly higher for amivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy versus chemotherapy (64% and 63% versus 36%, respectively; P<0.001 for both). Median intracranial progression-free survival was 12.5 and 12.8 versus 8.3 months for amivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy versus chemotherapy (hazard ratio for intracranial disease progression or death, 0.55 and 0.58, respectively). Predominant adverse events in the amivantamab-containing regimens were hematologic, EGFR, and MET-related toxicities. Amivantamab-chemotherapy had lower rates of hematologic adverse events than amivantamab-lazertinib-chemotherapy.ConclusionsAmivantamab-chemotherapy and amivantamab-lazertinib-chemotherapy improved progression-free survival and intracranial progression-free survival versus chemotherapy in a population with limited options after disease progression on osimertinib. Longer follow-up is needed for the modified amivantamab-lazertinib-chemotherapy regimen.