Lipid lowering efficacy of atorvastatin

阿托伐他汀 医学 安慰剂 他汀类 荟萃分析 不利影响 胆固醇 内科学 临床试验 血脂 科克伦图书馆 相对风险 随机对照试验 瑞舒伐他汀 置信区间 药理学 替代医学 病理
作者
Stephen P Adams,Michael Tsang,James M Wright
出处
期刊:Cochrane Database of Systematic Reviews [Cochrane]
被引量:114
标识
DOI:10.1002/14651858.cd008226.pub2
摘要

Background Atorvastatin is one of the most widely prescribed drugs and the most widely prescribed statin in the world. It is therefore important to know the dose‐related magnitude of effect of atorvastatin on blood lipids. Objectives To quantify the dose‐related effects of atorvastatin on blood lipids and withdrawals due to adverse effects (WDAE). Search methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL) on The Cochrane Library Issue 4, 2011, MEDLINE (1966 to November 2011), EMBASE (1980 to November 2011), ISI Web of Science (1899 to November 2011) and BIOSIS Previews (1969 to November 2011). No language restrictions were applied. Selection criteria Randomised controlled and uncontrolled before‐and‐after trials evaluating the dose response of different fixed doses of atorvastatin on blood lipids over a duration of 3 to 12 weeks. Data collection and analysis Two review authors independently assessed trial quality and extracted data. WDAE information was collected from the placebo‐controlled trials. Main results Two hundred fifty‐four trials evaluated the dose‐related efficacy of atorvastatin in 33,505 participants. Log dose‐response data revealed linear dose‐related effects on blood total cholesterol, low‐density lipoprotein (LDL)‐cholesterol and triglycerides. Combining all the trials using the generic inverse variance fixed‐effect model for doses of 10 to 80 mg/day resulted in decreases of 36% to 53% for LDL‐cholesterol. There was no significant dose‐related effects of atorvastatin on blood high‐density lipoprotein (HDL)‐cholesterol. WDAE were not statistically different between atorvastatin and placebo for these short‐term trials (risk ratio 0.99; 95% confidence interval 0.68 to 1.45). Authors' conclusions Blood total cholesterol, LDL‐cholesterol and triglyceride lowering effect of atorvastatin was dependent on dose. Log dose‐response data was linear over the commonly prescribed dose range. Manufacturer‐recommended atorvastatin doses of 10 to 80 mg/day resulted in 36% to 53% decreases of LDL‐cholesterol. The review did not provide a good estimate of the incidence of harms associated with atorvastatin because of the short duration of the trials and the lack of reporting of adverse effects in 37% of the placebo‐controlled trials.
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