• Drug Des Dev Ther · Jan 2019

    Meta Analysis

    Statin use and prognosis of lung cancer: a systematic review and meta-analysis of observational studies and randomized controlled trials.

    • Dao-Kui Xia, Zhi-Gang Hu, Yu-Feng Tian, and Fan-Jun Zeng.
    • Department of Thoracic Surgery, Yichang Central People's Hospital, Yichang, PR China.
    • Drug Des Dev Ther. 2019 Jan 1; 13: 405-422.

    BackgroundPrevious clinical studies reported inconsistent results on the associations of statins with the mortality and survival of lung cancer patients. This review and meta-analysis summarized the impact of statins on mortality and survival of lung cancer patients.Materials And MethodsEligible papers of this meta-analysis were searched by using PubMed, EMBASE, and Cochrane until July 2017. Primary end points were the mortality (all-cause mortality and cancer-specific mortality) and survival (progression-free survival and overall survival) of patients with statin use. Secondary end points were overall response rate and safety. The random-effects model was used to calculate pooled HRs and 95% CIs.ResultsSeventeen studies involving 98,445 patients were included in the meta-analysis. In observational studies, the pooled HR indicated that statins potentially decreased the cancer-specific mortality and promoted the overall survival of lung cancer patients. Statins showed an association with decreased all-cause mortality in cohort studies (HR =0.77, 95% CI: 0.59-0.99), but not in case-control studies (HR =0.75, 95% CI: 0.50-1.10). However, statin use showed no impact on mortality and overall survival in randomized controlled trials. Meanwhile, this meta-analysis indicated that statin use did not affect the progression-free survival of lung cancer patients in observational studies and randomized controlled trials. In addition, statins potentially enhanced the effects of tyrosine kinase inhibitors (HR=0.86, 95% CI: 0.76-0.98) and chemotherapy (HR=0.86, 95% CI: 0.81-0.91) on the overall survival of patients with non-small-cell lung cancer, but did not increase overall response rate and toxicity.ConclusionStatins were potentially associated with the decreasing risk of mortality and the improvement of overall survival in observational studies but not in randomized controlled trials.

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