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Meta-Analysis
. 2020 Apr;99(14):e19596.
doi: 10.1097/MD.0000000000019596.

Impact of statin use on cancer-specific mortality and recurrence: A meta-analysis of 60 observational studies

Jing Yang  1 , Chunyu Li  2 , Ying Shen  3 , Hong Zhou  1 , Yueqin Shao  1 , Wei Zhu  1   4 , Yan Chen  5   6
Affiliations
Meta-Analysis

Impact of statin use on cancer-specific mortality and recurrence: A meta-analysis of 60 observational studies

Jing Yang et al. Medicine (Baltimore). 2020 Apr.

Abstract

This meta-analysis mainly summarized the studies reporting an association between statin use and cancer-specific mortality and recurrence or progression of cancer patients.We systematically searched for studies about the statin used in cancer patients in electronic databases, including PubMed, Web of Science, Cochrane, Clinical Trials, from inception through the November 2019. A total of 60 studies which included 953,177 participants were eligible with 233,322 cancer patients used statin. Our analysis selected studies presented with outcome based on hazard ratios (HRs) and 95% confidence intervals (CIs) of cancer-specific mortality and cancer recurrence-free survival or progression-free survival. Heterogeneity between the studies was examined using I statistics, and sensitivity analyses were conducted to assess the robustness of the findings. All statistical analyses were performed using RevMan software (version 5.3).The use of statin was potentially associated with a decline in cancer-specific mortality in cancer patients (HR = 0.78; 95% CI: 0.74, 0.84; n = 39; I = 85%). Furthermore, statin use was associated with improved recurrence-free survival (HR = 0.87; 95% CI: 0.78,0.97; n = 23; I = 64%), but not with improvement in progression-free survival (HR = 1.05; 95% CI: 0.95,1.16; n = 14; I2 = 38%).The meta-analysis demonstrated that statin use could exhibit potential survival benefit in the prognosis of cancer patients. But our results are conservative for statins to improve disease recurrence and progression. These findings should be assessed in a prospective randomized cohort.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

Figures

Figure 1
Figure 1
Flow chart representing the selection process.
Figure 2
Figure 2
Funnel plot of studies in meta-analysis.
Figure 3
Figure 3
Forest plot of statin use and cancer-specific mortality.
Figure 4
Figure 4
Forest plot of association between statin use and RFS (recurrence-free survival).
Figure 5
Figure 5
Forest plot of association between statin use and PFS (progression-free survival).
See this image and copyright information in PMC

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