Antiangiogenic drugs used with chemotherapy for patients with recurrent ovarian cancer: a meta-analysis
Authors Yi SY, Zeng LJ, Kuang Y, Cao ZJ, Zheng CJ, Zhang Y, Liao M, Yang L
Received 16 August 2016
Accepted for publication 5 November 2016
Published 17 February 2017 Volume 2017:10 Pages 973—984
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Editor who approved publication: Dr Samir Farghaly
SuYi Yi, LongJia Zeng, Yan Kuang, ZhiJuan Cao, ChengJun Zheng, Yue Zhang, Meng Liao, Lu Yang
Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
Objective: The value of antiangiogenic inhibitors for patients with recurrent ovarian cancer has not been completely affirmed. Therefore, we aimed to assess the effectiveness and toxicities of various antiangiogenic drugs for the treatment of recurrent ovarian cancer.
Methods: In this meta-analysis, we searched PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials databases for complete randomized controlled trials. The searches were extended to May 15, 2016. The risk of bias of the included studies was evaluated via a Cochrane systematic evaluation, and the statistical analyses were performed using RevMan 5.2 software.
Results: In total, we included 8 randomized controlled trials involving 3,211 patients and divided them into 3 groups, vascular endothelial growth factor receptor inhibitors (VEGFRIs), vascular endothelial growth factor (VEGF) inhibitors (bevacizumab), and angiopoietin inhibitors (trebananib). The progression-free survival improved significantly in all the groups being given antiangiogenic drugs (hazard ratio [HR]: 0.55, 95% confidence interval [CI]: 0.45–0.67, I2=0%, P<0.00001 for the VEGFRI group; HR: 0.53, 95% CI: 0.45–0.63, I2=51%, P<0.00001 for the VEGF inhibitor group; HR: 0.67, 95% CI: 0.58–0.77, I2=0%, P<0.00001 for the trebananib group). Overall survival was obviously prolonged in the VEGFRI (HR: 0.76, 95% CI: 0.59–0.97, I2=0%, P=0.03), the VEGF inhibitor (HR: 0.87, 95% CI: 0.77–0.99, I2=0%, P=0.03), and trebananib groups (HR: 0.81, 95% CI: 0.67–0.99, I2=0%, P=0.04). The incidence of grade 3/4 side effects was different among the 3 groups, for example, proteinuria, hypertension, gastrointestinal perforation, and arterial thromboembolism were presented in the VEGF inhibitor group. Increased incidences of fatigue, diarrhea, and hypertension were seen in the VEGFRI group, and the trebananib group had a higher incidence of hypokalemia.
Conclusion: This meta-analysis showed that antiangiogenic drugs improved the progression-free survival. The VEGFRI, bevacizumab, and trebananib groups showed increased overall survival. Adding antiangiogenic drugs to chemotherapy treatment resulted in a higher incidence of grade 3/4 side effects, but these were manageable.
Keywords: antiangiogenesis, recurrent ovarian cancer, progression-free survival, overall survival, toxicity
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