First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis

Abstract Background It remains uncertain whether first-line treatment with upfront brain radiotherapy (RT) in combined with epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is superior to EGFR-TKIs alone for EGFR-mutated non-small cell lung cancer with newly diagnosed brain me...

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Main Authors: Yaowen Song, Shuiyu Lin, Jun Chen, Jun Dang
Format: Article
Language:English
Published: BMC 2023-10-01
Series:BMC Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12885-023-11548-0
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author Yaowen Song
Shuiyu Lin
Jun Chen
Jun Dang
author_facet Yaowen Song
Shuiyu Lin
Jun Chen
Jun Dang
author_sort Yaowen Song
collection DOAJ
description Abstract Background It remains uncertain whether first-line treatment with upfront brain radiotherapy (RT) in combined with epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is superior to EGFR-TKIs alone for EGFR-mutated non-small cell lung cancer with newly diagnosed brain metastases (BMs). Therefore, we performed a meta-analysis to address this issue. Methods We searched PubMed, Embase, Cochrane Library, and Web of Science databases for eligible studies published until February 28, 2023. The primary outcomes of interest were overall survival (OS) and intracranial progression-free survival (iPFS), reported as hazard ratios (HRs) and 95% confidence intervals (CIs). Results Twenty-four retrospective studies with 3184 patients were included. First- or second-generation EGFR-TKIs were used in each study. Upfront brain RT plus EGFR-TKIs significantly prolonged OS (HR = 0.75, 95% CI: 0.64–0.88) and iPFS (HR = 0.61, 95% CI: 0.52–0.72) compared to EGFR-TKIs alone. There were no significant differences in OS and iPFS benefits from the combination therapy between asymptomatic and symptomatic patients, patients with exon 19 and 21 mutations, patients with 1–3 and > 3 BMs, and males and females, respectively (HRs interaction, P > 0.05 for each subgroup comparison). Conclusions First-line treatment with upfront brain RT plus EGFR-TKIs is likely to be more effective than EGFR-TKIs alone. The benefits of combination therapy did not appear to be significantly affected by BM-related symptoms, EGFR mutation subtype, number of BMs, or sex.
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spelling doaj.art-c92c65d00fc1473298b6b5cb47f5a5412023-11-05T12:21:01ZengBMCBMC Cancer1471-24072023-10-0123111110.1186/s12885-023-11548-0First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysisYaowen Song0Shuiyu Lin1Jun Chen2Jun Dang3Department of Radiation Oncology, The First Hospital of China Medical UniversityDepartment of Radiation Oncology, Harbin Medical University Cancer HospitalDepartment of Radiation Oncology, Shenyang Tenth People’s HospitalDepartment of Radiation Oncology, The First Hospital of China Medical UniversityAbstract Background It remains uncertain whether first-line treatment with upfront brain radiotherapy (RT) in combined with epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is superior to EGFR-TKIs alone for EGFR-mutated non-small cell lung cancer with newly diagnosed brain metastases (BMs). Therefore, we performed a meta-analysis to address this issue. Methods We searched PubMed, Embase, Cochrane Library, and Web of Science databases for eligible studies published until February 28, 2023. The primary outcomes of interest were overall survival (OS) and intracranial progression-free survival (iPFS), reported as hazard ratios (HRs) and 95% confidence intervals (CIs). Results Twenty-four retrospective studies with 3184 patients were included. First- or second-generation EGFR-TKIs were used in each study. Upfront brain RT plus EGFR-TKIs significantly prolonged OS (HR = 0.75, 95% CI: 0.64–0.88) and iPFS (HR = 0.61, 95% CI: 0.52–0.72) compared to EGFR-TKIs alone. There were no significant differences in OS and iPFS benefits from the combination therapy between asymptomatic and symptomatic patients, patients with exon 19 and 21 mutations, patients with 1–3 and > 3 BMs, and males and females, respectively (HRs interaction, P > 0.05 for each subgroup comparison). Conclusions First-line treatment with upfront brain RT plus EGFR-TKIs is likely to be more effective than EGFR-TKIs alone. The benefits of combination therapy did not appear to be significantly affected by BM-related symptoms, EGFR mutation subtype, number of BMs, or sex.https://doi.org/10.1186/s12885-023-11548-0Non-small-cell Lung cancerBrain metastasesEpidermal growth factor receptor tyrosine kinase inhibitorsBrain radiotherapymeta-analysis
spellingShingle Yaowen Song
Shuiyu Lin
Jun Chen
Jun Dang
First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
BMC Cancer
Non-small-cell Lung cancer
Brain metastases
Epidermal growth factor receptor tyrosine kinase inhibitors
Brain radiotherapy
meta-analysis
title First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
title_full First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
title_fullStr First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
title_full_unstemmed First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
title_short First-line treatment with TKI plus brain radiotherapy versus TKI alone in EGFR-mutated non-small cell Lung cancer with brain metastases: a systematic review and meta-analysis
title_sort first line treatment with tki plus brain radiotherapy versus tki alone in egfr mutated non small cell lung cancer with brain metastases a systematic review and meta analysis
topic Non-small-cell Lung cancer
Brain metastases
Epidermal growth factor receptor tyrosine kinase inhibitors
Brain radiotherapy
meta-analysis
url https://doi.org/10.1186/s12885-023-11548-0
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