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ORIGINAL ARTICLE
Year : 2021  |  Volume : 17  |  Issue : 3  |  Page : 664-670

EGFR tyrosine kinase inhibitors alone or in combination with chemotherapy for non-small-cell lung cancer with EGFR mutations: A meta-analysis of randomized controlled trials


1 Department of Oncology, Affiliated Hospital of Chengde Medical College, Chengde, China
2 Department of Oncology, China National Petroleum Corporation Central Hospital, Langfang, Hebei, China

Correspondence Address:
Qing-Shan Li
Department of Oncology, Affiliated Hospital of Chengde Medical College, No. 36, Nanyingzi Street, Chengde, Hebei 067000
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_195_20

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Objective: The objective of this study was to perform a meta-analysis comparing the efficiency of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) with chemotherapy to EGFR TKI treatment alone in patients with EGFR mutation-positive non-small cell lung cancer (NSCLC). Materials and Methods: Following keyword queries in databases and identification of randomized control trials for inclusion, hazard ratios (HRs), relative risks (RRs), and associated 95% confidence intervals (95% CIs) were determined. Results: Ten randomized controlled trials involving 1354 participants with NSCLC were evaluated. We found that a combined approach of chemotherapy with EGFR TKIs significantly improved overall survival (OS) compared with EGFR TKI alone in our patient cohort (HR = 0.47, 95% CI = 0.31–0.72). In addition, a higher overall response rate (ORR) was found for patients who received combined treatment compared to chemotherapy alone (RR = 2.17, 95% CI = 1.51-3.12). Furthermore, concomitant use of chemotherapy with TKIs significantly improved the progression-free survival (PFS) when compared to the use of TKIs alone (HR = 0.68, 95% CI = 0.49-0.95). Moreover, there was a higher ORR among patients who received combined treatment as compared to those who were managed using TKIs only (RR=1.17, 95%CI=1.09-1.25). Conclusion: Our meta-analysis shows that EGFR TKIs with chemotherapy confer better OS and ORR compared to either treatment alone, similarly, the combined treatment showed better PFS and ORR profiles than the use of TKI alone.


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