Sotirios Tsimikas1, Philip L S M Gordts2,3, Chelsea Nora2,3, Calvin Yeang1, Joseph L Witztum3. 1. Vascular Medicine Program, Sulpizio Cardiovascular Center, Division of Cardiovascular Diseases, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0682, USA. 2. Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0682, USA. 3. Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0682, USA.
Abstract
AIMS: Lipoprotein(a) [Lp(a)] is elevated in 20-30% of people. This study aimed to assess the effect of statins on Lp(a) levels. METHODS AND RESULTS: This subject-level meta-analysis includes 5256 patients (1371 on placebo and 3885 on statin) from six randomized trials, three statin-vs.-placebo trials, and three statin-vs.-statin trials, with pre- and on-treatment (4-104 weeks) Lp(a) levels. Statins included atorvastatin 10 mg/day and 80 mg/day, pravastatin 40 mg/day, rosuvastatin 40 mg/day, and pitavastatin 2 mg/day. Lipoprotein(a) levels were measured with the same validated assay. The primary analysis of Lp(a) is based on the log-transformed data. In the statin-vs.-placebo pooled analysis, the ratio of geometric means [95% confidence interval (CI)] for statin to placebo is 1.11 (1.07-1.14) (P < 0.0001), with ratio >1 indicating a higher increase in Lp(a) from baseline in statin vs. placebo. The mean percent change from baseline ranged from 8.5% to 19.6% in the statin groups and -0.4% to -2.3% in the placebo groups. In the statin-vs.-statin pooled analysis, the ratio of geometric means (95% CI) for atorvastatin to pravastatin is 1.09 (1.05-1.14) (P < 0.0001). The mean percent change from baseline ranged from 11.6% to 20.4% in the pravastatin group and 18.7% to 24.2% in the atorvastatin group. Incubation of HepG2 hepatocytes with atorvastatin showed an increase in expression of LPA mRNA and apolipoprotein(a) protein. CONCLUSION: This meta-analysis reveals that statins significantly increase plasma Lp(a) levels. Elevations of Lp(a) post-statin therapy should be studied for effects on residual cardiovascular risk. Published on behalf of the European Society of Cardiology. All rights reserved.
AIMS: Lipoprotein(a) [Lp(a)] is elevated in 20-30% of people. This study aimed to assess the effect of statins on Lp(a) levels. METHODS AND RESULTS: This subject-level meta-analysis includes 5256 patients (1371 on placebo and 3885 on statin) from six randomized trials, three statin-vs.-placebo trials, and three statin-vs.-statin trials, with pre- and on-treatment (4-104 weeks) Lp(a) levels. Statins included atorvastatin 10 mg/day and 80 mg/day, pravastatin 40 mg/day, rosuvastatin 40 mg/day, and pitavastatin 2 mg/day. Lipoprotein(a) levels were measured with the same validated assay. The primary analysis of Lp(a) is based on the log-transformed data. In the statin-vs.-placebo pooled analysis, the ratio of geometric means [95% confidence interval (CI)] for statin to placebo is 1.11 (1.07-1.14) (P < 0.0001), with ratio >1 indicating a higher increase in Lp(a) from baseline in statin vs. placebo. The mean percent change from baseline ranged from 8.5% to 19.6% in the statin groups and -0.4% to -2.3% in the placebo groups. In the statin-vs.-statin pooled analysis, the ratio of geometric means (95% CI) for atorvastatin to pravastatin is 1.09 (1.05-1.14) (P < 0.0001). The mean percent change from baseline ranged from 11.6% to 20.4% in the pravastatin group and 18.7% to 24.2% in the atorvastatin group. Incubation of HepG2 hepatocytes with atorvastatin showed an increase in expression of LPA mRNA and apolipoprotein(a) protein. CONCLUSION: This meta-analysis reveals that statins significantly increase plasma Lp(a) levels. Elevations of Lp(a) post-statin therapy should be studied for effects on residual cardiovascular risk. Published on behalf of the European Society of Cardiology. All rights reserved.
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