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Prognostic Value of Circulating Tumor Cells in Ovarian Cancer: A Meta-Analysis.


ABSTRACT:

Background

The prognostic value of circulating tumor cells (CTCs) in ovarian cancer has been investigated in previous studies, but the results are controversial. Therefore we performed a meta-analysis to systematically review these data and evaluate the value of CTCs in ovarian cancer.

Materials and methods

A literary search for relevant studies was performed on Embase, Medline and Web of Science databases. Then pooled hazard ratios (HRs) for survival with 95% confidence intervals (CIs), subgroup analyses, sensitivity analyses, meta-regression analyses and publication bias were conducted.

Results

This meta-analysis is based on 11 publications and comprises a total of 1129 patients. The prognostic value of the CTC status was significant in overall survival (OS) (HR, 1.61;95% CI,1.22-2.13) and progression-free survival (PFS)/disease-free survival (DFS) (HR, 1.44; 95%CI, 1.18-1.75). Furthermore, subgroup analysis revealed that the value of CTC status in OS was significant in "RT-PCR" subgroup (HR, 2.02; 95% CI, 1.34-3.03), whereas it was not significant in "CellSearch" subgroup (HR, 1.15; 95% CI 0.45-2.92) and "other ICC" subgroup (HR, 1.09; 95% CI 0.62-1.90). The presence of CTC was also associated with an increased CA-125 (OR, 4.07; 95%CI, 1.87-8.85).

Conclusion

Our study demonstrates that CTC status is associated with OS and PFS/DFS in ovarian cancer.

SUBMITTER: Zhou Y 

PROVIDER: S-EPMC4476582 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Publications

Prognostic Value of Circulating Tumor Cells in Ovarian Cancer: A Meta-Analysis.

Zhou Yunlan Y   Bian Bingxian B   Yuan Xiangliang X   Xie Guohua G   Ma Yanhui Y   Shen Lisong L  

PloS one 20150622 6


<h4>Background</h4>The prognostic value of circulating tumor cells (CTCs) in ovarian cancer has been investigated in previous studies, but the results are controversial. Therefore we performed a meta-analysis to systematically review these data and evaluate the value of CTCs in ovarian cancer.<h4>Materials and methods</h4>A literary search for relevant studies was performed on Embase, Medline and Web of Science databases. Then pooled hazard ratios (HRs) for survival with 95% confidence intervals  ...[more]

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