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Efficacy of EGFR-TKI therapy in patients with brain metastases from non-small-cell lung cancer: A metaanalysis


Wei Zhang
Lijuan Hu
Caihong Huang
Jun Ying
Naiqing Zhao

Abstract

Purpose: This meta-analysis aimed to systematically evaluate the efficacy of tyrosine kinase inhibitors of epidermal growth factor receptor (EGFR-TKIs) for patients with brain metastases (BM) from nonsmall- cell lung cancer (NSCLC), and to compare this treatment modality to chemotherapy or radiotherapy.
Methods: PubMed, EMBASE (OvidSP), the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science and ASCO Annual Meeting Abstracts were searched. Controlled clinical studies that compared the efficacy of EGFR-TKIs with chemotherapy or radiotherapy for NSCLC patients with BM were included in the analysis. Efficacy indicators included overall survival (OS), local progression-free survival (LPFS) and objective response rate (ORR).
Results: The final sample consisted of 24,637 NSCLC patients with BM from 11 clinical studies. In primary efficacy analysis, it was found that EGFR-TKIs were significantly superior to chemotherapy or radiotherapy in terms of ORR (odds ratio (OR) = 2.10, p = 0.035), OS (hazard ratio (HR) = 0.78, p = 0.011) and LPFS (HR = 0.60, p < 0.001).
Conclusion: Among the patients with BM from NSCLC, EGFR-TKIs exhibit a therapeutic advantage over chemotherapy or radiotherapy, which is reflected in the elevation of ORR and improvement in OS and LPFS.

Keywords: Brain metastasis, Non-small-cell lung cancer (NSCLC), Protein kinase Inhibitors, Epidermal growth factor, Meta-analysis


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eISSN: 1596-9827
print ISSN: 1596-5996