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[A Meta-analysis on association between statins and colorectal cancer]
1Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China.
Zhonghua Liu Xing Bing Xue Za Zhi = Zhonghua Liuxingbingxue Zazhi
|February 24, 2021
Summary
Statins demonstrate a protective effect against colorectal cancer, reducing risk across various study types. However, lovastatin may increase cancer risk, warranting further investigation.
Area of Science:
- Oncology
- Pharmacology
- Epidemiology
Background:
- Colorectal cancer (CRC) remains a significant global health concern.
- Statins, widely used for cholesterol management, have been investigated for potential anticancer properties.
Purpose of the Study:
- To systematically evaluate the association between statin use and colorectal cancer risk.
- To provide evidence-based insights into the preventive potential of statins against CRC.
Main Methods:
- A comprehensive meta-analysis of published literature from January 2000 to January 2020.
- Inclusion of 31 studies with over 1.62 million participants, assessed using Newcastle-Ottawa Scale and Jadad score.
- Statistical analysis performed using Revman 5.0 and Stata 12.1.
Main Results:
- Meta-analysis revealed a moderate protective effect of statins against colorectal cancer across case-control, cohort, and randomized controlled trial designs.
- Statin use for less than 5 years, higher daily dosages (≥34 mg), and lipid-soluble statins showed preventive effects.
- Lovastatin was associated with an increased risk of colorectal cancer (RR=1.07, 95% CI: 1.00-1.14).
Conclusions:
- Statins exhibit a significant protective effect in the prevention of colorectal cancer.
- Specific statin characteristics, such as duration of use, dosage, and lipid solubility, influence their preventive efficacy.
- Lovastatin represents a potential exception, with evidence suggesting an increased CRC risk.
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