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  • Title: Efficacy and safety of lipid lowering by alirocumab in chronic kidney disease.
    Author: Toth PP, Dwyer JP, Cannon CP, Colhoun HM, Rader DJ, Upadhyay A, Louie MJ, Koren A, Letierce A, Mandel J, Banach M.
    Journal: Kidney Int; 2018 Jun; 93(6):1397-1408. PubMed ID: 29526502.
    Abstract:
    Individuals with chronic kidney disease are at increased risk of premature cardiovascular disease. Among them, many with elevated low-density lipoprotein cholesterol (LDL-C) are unable to achieve optimal LDL-C on statins and require additional lipid-lowering therapy. To study this, we compared the LDL-C-lowering efficacy and safety of alirocumab in individuals with hypercholesterolemia with impaired renal function, defined as eGFR 30-59 ml/min/1.73 m2, to those without impaired renal function eGFR ≥60 ml/min/1.73 m2. A total of 4629 hypercholesterolemic individuals without or with impaired renal function, pooled from eight phase 3 ODYSSEY trials (double-blind treatments of 24-104 weeks), were on alirocumab 150 mg or 75/150 mg every two weeks vs. placebo or ezetimibe. Overall, 10.1% had impaired renal function and over 99% were receiving statin treatment. Baseline LDL-C in alirocumab and control groups was comparable in subgroups analyzed. LDL-C reductions at week 24 ranged from 46.1 to 62.2% or 48.3 to 60.1% with alirocumab among individuals with or without impaired renal function, respectively. Similar reductions were observed for lipoprotein (a), non-high-density lipoprotein cholesterol, apolipoprotein B, and triglycerides. Safety data were similar in both treatment subgroups, regardless of the degree of CKD. Renal function did not change over time in response to alirocumab. This post hoc efficacy analysis is limited by evaluation of alirocumab treatment effects on renal and lipid parameters by serum biochemistry. Thus, alirocumab consistently lowered LDL-C regardless of impaired renal function, with safety comparable to control, among individuals with hypercholesterolemia who nearly all were on statin treatment.
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