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Lazertinib in pretreated EGFR T790M-mutated advanced non-small cell lung cancer: A real-world multicenter study

 Hyunwook Kim  ;  Beung-Chul Ahn  ;  Jiyun Lee  ;  Jii Bum Lee  ;  Min-Hee Hong  ;  Hye Ryun Kim  ;  Byoung Chul Cho  ;  Sun Min Lim 
 LUNG CANCER, Vol.180 : 107213, 2023-06 
Journal Title
Issue Date
Aniline Compounds / therapeutic use ; Carcinoma, Non-Small-Cell Lung* / drug therapy ; Carcinoma, Non-Small-Cell Lung* / genetics ; Carcinoma, Non-Small-Cell Lung* / pathology ; ErbB Receptors / genetics ; Humans ; Lung Neoplasms* / drug therapy ; Lung Neoplasms* / genetics ; Lung Neoplasms* / pathology ; Mutation / genetics ; Protein Kinase Inhibitors / pharmacology
Lazertinib ; Non-small cell lung cancer ; Real-world data ; T790M EGFR mutation
Introduction: Lazertinib is a third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) that provides a high level of selectivity for sensitizing and p.Thr790Met (T790M) EGFR mutations. We aimed to collect real-world data regarding the efficacy and safety of lazertinib.

Methods: This study included patients treated with lazertinib for T790M-mutated non-small cell lung cancer who had previously been treated with an EGFR-TKI. The primary outcome measure was progression-free survival (PFS). Additionally, this study evaluated overall survival (OS), time-to-treatment failure (TTF), duration of response (DOR), objective response rate (ORR) and disease control rate (DCR). Drug safety was also assessed.

Results: In a study of 103 patients, 90 received lazertinib as a second- or third-line therapy. The ORR and DCR were 62.1% and 94.2%, respectively. The median follow-up duration was 11.1 months, and the median PFS period was 13.9 (95% confidence interval [CI], 11.0-not reached [NR]) months. OS, DOR, and TTF had not yet been determined. In a subgroup of 33 patients with evaluable brain metastases, the intracranial DCR and ORR were 93.5% and 57.6%, respectively. The median intracranial PFS period was 17.1 (95% CI, 13.9-NR) months. Approximately 17.5% of patients had dose modification or discontinuation due to adverse events, with the most common being grade 1 or 2 paresthesia.

Conclusions: The efficacy and safety of lazertinib were recapitulated in a real-world study reflecting routine clinical practice in Korea, showing durable disease control both systematically and intracranially, with manageable side effects.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyun Wook(김현욱) ORCID logo https://orcid.org/0000-0002-4274-7562
Kim, Hye Ryun(김혜련) ORCID logo https://orcid.org/0000-0002-1842-9070
Ahn, Beung-Chul(안병철) ORCID logo https://orcid.org/0000-0002-2579-2791
Lee, Jii Bum(이기쁨) ORCID logo https://orcid.org/0000-0001-5608-3157
Lim, Sun Min(임선민)
Cho, Byoung Chul(조병철) ORCID logo https://orcid.org/0000-0002-5562-270X
Hong, Min Hee(홍민희) ORCID logo https://orcid.org/0000-0003-3490-2195
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