Effect of alirocumab on specific lipoprotein non-high-density lipoprotein cholesterol and subfractions as measured by the vertical auto profile method: Analysis of 3 randomized trials versus placebo

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Abstract

Background: The effect of alirocumab on potentially atherogenic lipoprotein subfractions was assessed in a post hoc analysis using the vertical auto profile (VAP) method. Methods: Patients from three Phase II studies with low-density lipoprotein cholesterol (LDL-C) ≥2.59 mmol/L (100 mg/dL) at baseline on stable statin therapy were randomised to receive subcutaneous alirocumab 50-150 mg every 2 weeks (Q2W) or 150-300 mg every 4 weeks (according to study) or placebo for 8-12 weeks. Samples from patients treated with alirocumab 150 mg Q2W (n = 74; dose common to all three trials) or placebo (n = 71) were analysed by VAP. Percent change in lipoprotein subfractions with alirocumab vs. placebo was analysed at Weeks 6, 8 or 12 using analysis of covariance. Results: Alirocumab significantly reduced LDL-C and the cholesterol content of subfractions LDL1, LDL2 and LDL3+4. Significant reductions were also observed in triglycerides, apolipoproteins CII and CIII and the cholesterol content of very low-density, intermediate-density, and remnant lipoproteins. Conclusion: Alirocumab achieved reductions across a spectrum of atherogenic lipoproteins in patients receiving background statin therapy.

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Toth, P. P., Hamon, S. C., Jones, S. R., Martin, S. S., Joshi, P. H., Kulkarni, K. R., … McKenney, J. M. (2016). Effect of alirocumab on specific lipoprotein non-high-density lipoprotein cholesterol and subfractions as measured by the vertical auto profile method: Analysis of 3 randomized trials versus placebo. Lipids in Health and Disease, 15(1). https://doi.org/10.1186/s12944-016-0197-4

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