@article{ATM25056,
author = {Dongfang Chen and Tianqing Chu and Qing Chang and Yanwei Zhang and Liwen Xiong and Rong Qiao and Jiajun Teng and Baohui Han and Runbo Zhong},
title = {The relationship between preliminary efficacy and prognosis after first-line EGFR tyrosine kinase inhibitor ( EGFR -TKI) treatment of advanced non-small cell lung cancer},
journal = {Annals of Translational Medicine},
volume = {7},
number = {9},
year = {2019},
keywords = {},
abstract = {Background: Nowadays, patients with EGFR tyrosine kinase inhibitor (EGFR-TKI)-sensitive advanced non-small cell lung cancer (NSCLC) receive EGFR-TKIs as first-line treatment. We aimed to analyze the relationship between preliminary efficacy (tumor shrinkage within 1 month) and progression-free survival (PFS) after first-line EGFR-TKI treatment.
Methods: A total of 82 patients with EGFR-TKI-sensitive advanced NSCLC confirmed by histopathology from January 2013 to January 2017 were retrospectively analyzed. All patients received first-line EGFR-TKI treatment and follow-up at Shanghai Chest Hospital.
Results: Of a total of 82 patients, 42 (51.2%) patients achieved partial response (PR) within 1 month, and 40 (48.8%) patients achieved stable disease (SD: −30% to 0) within 1 month. The median PFS among all patients was 10 months. The median PFS in patients achieving PR within 1 month was 10.0 months. The median PFS in patients achieving SD (−30% to 0) within 1 month was 9.3 months. There was no statistically significant difference between PR within 1 month and SD (−30% to 0) within 1 month (P=0.620). In the EGFR-sensitive mutation subgroup, there was also no statistically significant difference between PR within 1 month and SD (−30% to 0) within 1 month. Univariate and multivariate analysis of first-line EGFR-TKI treatment showed that age, EGFR mutation type, and T staging had effects on PFS. Patients who were more than 65 years old, had EGFR 19del mutation, along with a T staging less than 4, had a longer PFS; these differences were statistically significant. Liver metastasis, bone metastasis, and brain metastasis were not shown to be related to PFS.
Conclusions: For patients with EGFR-TKI-sensitive advanced NSCLC, there is no correlation between preliminary efficacy (tumor shrinkage within 1 month) and PFS after first-line EGFR-TKI treatment.},
issn = {2305-5847}, url = {https://atm.amegroups.org/article/view/25056}
}