Clinical efficacy and prognosis analysis of treatment regimens for EGFR mutant non-small cell lung cancer and brain metastasis: a retrospective study

Autor: Huijuan Wang, Ruyue Xing, Mengmeng Li, Mina Zhang, Chunhua Wei, Guowei Zhang, Yuanyuan Niu, Zhiyong Ma, Xiangtao Yan
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: BMC Cancer, Vol 23, Iss 1, Pp 1-9 (2023)
Druh dokumentu: article
ISSN: 1471-2407
DOI: 10.1186/s12885-023-10744-2
Popis: Abstract Background The aims of the study were to evaluate potential differences among first-line treatment for EGFR mutant (m+) non-small cell lung cancer (NSCLC) patients with brain metastasis in China and to identify the factors influencing survival outcomes. Methods In this retrospective study, 172 EGFRm + patients with advanced NSCLC who received a 1st generation EGFR tyrosine kinase inhibitor (TKI) were divided into 4 groups: A, EGFR-TKI (n = 84); B, EGFR-TKI + pemetrexed + cisplatin/carboplatin chemotherapy (CT) (n = 55); C, EGFR-TKI + bevacizumab (n = 15); and D, EGFR-TKI + pemetrexed + cisplatin/carboplatin CT + bevacizumab (n = 18). Intracranial and extracranial progression-free survival (PFS), the overall survival (OS), objective remission rates (ORRs) and adverse events were analyzed. Results Intracranial PFS of groups C + D was longer than for groups A + B (18.9 m vs. 11.0 m, P = 0.027). Extracranial PFS were longer in group B in comparison with group A (13.0 m vs. 11.5 m, P = 0.039) and in groups C + D compared to groups A + B (18.9 m vs. 11.9 m, P = 0.008). Median OS in groups A and B were 27.9 m and 24.4 m, respectively, while groups C and D have not yet achieved median OS. Significant difference was found in intracranial ORR between groups A + B vs. C + D (31.0% vs. 65.2%, P = 0.002). Most patients suffered grade 1–2 treatment-related adverse events, which were relieved soon after symptomatic treatment. Conclusions First-generation EGFR-TKI + bevacizumab treatment outperformed other regimens in EGFRm + NSCLC patients with brain metastasis. The therapy improved the control and delayed progression of intracranial lesions and prolonged survival times.
Databáze: Directory of Open Access Journals
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