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Concurrent cisplatin-based chemoradiotherapy versus exclusive radiotherapy in high-risk cervical cancer: a meta-analysis

Authors Meng X, Liao Y, Liu X, Li S, Shi M, Zeng X

Received 30 September 2015

Accepted for publication 5 February 2016

Published 31 March 2016 Volume 2016:9 Pages 1875—1888


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Daniele Santini

Xiang-Yu Meng,1,* Yi Liao,2,* Xiao-Ping Liu,3 Sheng Li,1 Ming-Jun Shi,4 Xian-Tao Zeng1

1Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, People’s Republic of China; 2Department of Oncology, Nanfang Hospital, Southern Medical University, GuangZhou Province, People’s Republic of China; 3Department of Hematology and Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, People’s Republic of China; 4Institut Curie, Paris Sciences et Lettres Research University, Le Centre National de la Recherche Scientifique, Les Unités Mixtes de Recherche 144, F-75005, Paris, France

*These authors contributed equally to this work

Objective: To evaluate the efficacy and safety of cisplatin-based concurrent chemoradiotherapy (DDP-CCRT) in patients with high-risk cervical carcinoma (CC) compared with exclusive radiotherapy (RT).
Materials and methods: Databases were searched for randomized controlled trials (RCTs) and cohort studies comparing DDP-CCRT with RT alone. Risk of bias assessment for RCTs was performed using the Cochrane Collaboration’s tool, and the Newcastle–Ottawa quality scale was used to perform quality assessment for cohort studies. Meta-analysis was conducted using Review Manager 5 and Stata 12.0 software.
Results: Finally, eight RCTs and three cohort studies containing 2,130 subjects were included. Analysis on total failures revealed a statistically significant difference in favor of DDP-CCRT (risk ratio =0.77, 95% confidence intervals [CIs]: 0.67–0.89). No significant heterogeneity was detected for pooled analysis concerning overall survival; the result of which demonstrated the superiority of DDP-CCRT over RT alone (hazard ratio =0.68, 95% CI: 0.57–0.80), and stable and established accumulative effects were observed in cumulative meta-analysis. Similar results were observed for progression-free survival (hazard ratio =0.63, 95% CI: 0.50–0.76). In terms of treatment-related Grade 3 and 4 adverse events, our pooled analysis with a fixed-effects model showed significantly enhanced toxicity in the DDP-CCRT group compared with that in the RT group (odds ratio =3.13, 95% CI: 2.37–4.13).
Conclusion: Solid and stable beneficial effects are associated with DDP-CCRT, and its superiority over comparative RT in patients with high-risk CC is confirmed. DDP-CCRT should be considered one of the frontline treatment options for high-risk CC patients without contraindications. However, enhanced toxicity associated with DDP-CCRT should never be ignored.

Keywords: cervical carcinoma, concurrent chemoradiotherapy, meta-analysis, cisplatin, radiotherapy, survival

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