Brain metastasis, EGFR mutation subtype and generation of EGFR-TKI jointly influence the treatment outcome of patient with EGFR-mutant NSCLC

© 2023. The Author(s)..

Non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutation is brain metastasis (BM)-prone. We determined the impact of this hallmark, along with EGFR subtype and generation of tyrosine kinase inhibitor (TKI) treatment, on patients' outcome. 553 metastatic EGFR-mutant NSCLC patients received front-line EGFR-TKI treatment. Progression-free survival (PFS), overall survival (OS) and secondary T790M rate were analysed. BM was observed in 211 (38.2%) patients. BM (HR 1.20 [95% CI 0.99-1.48]; p = 0.053), ECOG PS 0-1 (HR 0.71 [95% CI 0.54-0.93]; p = 0.014) and afatinib treatment (HR 0.81 [95% CI 0.66-0.99]; p = 0.045) were associated with PFS. Afatinib-treated patients without BM demonstrated a significantly longer PFS (16.3 months) compared to afatinib-treated patients with BM (13.7 months) and to gefitinib/erlotinib-treated patients with (11.1 months) or without BM (14.2 months; p < 0.001). CNS-only progression trended higher in afatinib-treated patients. ECOG PS 0-1 (HR 0.41 [95% CI 0.31-0.56]; p < 0.001) and EGFR L858R mutation (HR 1.46 [95% CI 1.13-1.88]; p = 0.003), but not BM, were the predictors for OS. BM (OR 2.02 [95% CI 1.02-4.08]; p = 0.040), afatinib treatment (OR 0.26 [95% CI 0.12-0.50]; p < 0.001) and EGFR L858R mutation (OR 0.55 [95% CI 0.28-1.05]; p = 0.070) were associated with secondary T790M rate. In BM patients, gefitinib/erlotinib-treated ones with 19 deletion mutation and afatinib-treated ones with L858R mutation had the highest and the lowest T790M rate (94.4% vs. 27.3%, p < 0.001), respectively. BM and generation of EGFR-TKI jointly impact PFS and secondary T790M rate in patients with EGFR-mutant NSCLC, whereas OS was mainly associated with EGFR subtype.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Scientific reports - 13(2023), 1 vom: 21. Nov., Seite 20323

Sprache:

Englisch

Beteiligte Personen:

Ju, Jia-Shiuan [VerfasserIn]
Huang, Allen Chung-Cheng [VerfasserIn]
Tung, Pi-Hung [VerfasserIn]
Huang, Chi-Hsien [VerfasserIn]
Chiu, Tzu-Hsuan [VerfasserIn]
Wang, Chin-Chou [VerfasserIn]
Ko, How-Wen [VerfasserIn]
Chung, Fu-Tsai [VerfasserIn]
Hsu, Ping-Chih [VerfasserIn]
Fang, Yueh-Fu [VerfasserIn]
Guo, Yi-Ke [VerfasserIn]
Kuo, Chih-Hsi Scott [VerfasserIn]
Yang, Cheng-Ta [VerfasserIn]

Links:

Volltext

Themen:

41UD74L59M
Afatinib
DA87705X9K
EC 2.7.10.1
EGFR protein, human
ErbB Receptors
Erlotinib Hydrochloride
Gefitinib
Journal Article
Protein Kinase Inhibitors
S65743JHBS

Anmerkungen:

Date Completed 23.11.2023

Date Revised 19.12.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-023-45815-8

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364811404