Oncotarget

Meta-Analysis:

Efficacy and safety of targeting VEGFR drugs in treatment for advanced or metastatic gastric cancer: a systemic review and meta-analysis

Duanrui Liu, Xiaoli Ma, Dongjie Xiao, Yanfei Jia _ and Yunshan Wang

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Oncotarget. 2018; 9:8120-8132. https://doi.org/10.18632/oncotarget.23429

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Abstract

Duanrui Liu1, Xiaoli Ma1, Dongjie Xiao1, Yanfei Jia1,2 and Yunshan Wang1,2

1Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250013, People’s Republic of China

2Shandong Province Key Lab of Tumor Target Molecule, Jinan Central Hospital Affiliated to Shandong University, Jinan 250013, People’s Republic of China

Correspondence to:

Yanfei Jia, email: jiayanfei_@126.com

Yunshan Wang, email: sdjnwys@163.com

Keywords: targeting VEGFR drugs; safety; efficacy; meta-analysis; gastric cancer

Received: June 16, 2017     Accepted: November 29, 2017     Published: December 19, 2017

ABSTRACT

The value of targeting VEGFR (vascular endothelial growth factor receptor) drugs has demonstrated encouraging anti-cancer activity in advanced solid tumors within current clinical trials. This study aimed to serve as the first systemic review to assess their safety and efficacy according to biochemical characteristics of targeting VEGFR drugs in gastric cancer. We analyzed eight clinical trials on targeting VEGFR drugs in gastric cancer. Results showed that targeting VEGFR drugs significantly improved overall survival (OS) [Hazard Ratio (HR) 0.69, 95% confidence interval (CI) (0.55, 0.83), P < 0.001], progression free survival (PFS) [HR 0.50, 95% CI (0.34, 0.66), P < 0.001], disease control rate (DCR) [Odds Ratio (OR) 3.83, 95% CI (2.39, 6.15), P < 0.001] and significantly decreased the progressive disease rate(PDR)[OR 0.45, 95% CI (0.34, 0.59), P < 0.001], but not objective response rate (ORR) [OR 1.46, 95% CI (0.93, 2.29), P = 0.098]. Further subgroup revealed that VEGFR antibody (VEGFR-Ab) drugs were superior to VEGFR tyrosine kinase inhibitor (VEGFR-TKI) drugs in terms of the OS, PFS and PDR. To determine the toxic effect of targeting VEGFR drugs, the relative risk of adverse events (grade ≥ 3) of special interest(AESIs) were estimated. Most of these were predictable and manageable. Furthermore, less AESIs were observed in the VEGFR-Ab than the VEGFR-TKI drugs. In conclusion, VEGFR drugs were effective targeted therapy in advanced or metastatic gastric cancer, and its toxicity is within a controllable range. VEGFR-Ab drugs were more effective than VEGFR-TKI drugs in terms of the OS, PFS and PDR of gastric cancer patients with little toxicity.


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