Cited by 109Lipoproteins and Cardiovascular HealthLipid metabolism and disordersCholesterol and Lipid Metabolism

ANGPTL3 Inhibition With Evinacumab Results in Faster Clearance of IDL and LDL apoB in Patients With Homozygous Familial Hypercholesterolemia—Brief Report

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Reeskamp, Laurens F., Millar, John S., Wu, Liya, Jansen, Hans, van Harskamp, Dewi, Schierbeek, Henk, Gipe, Daniel A., Rader, Daniel J. +3 more·2021·Arteriosclerosis, Thrombosis, and Vascular Biology

Abstract

Objective: The mechanism by which evinacumab, a fully human monoclonal antibody directed against ANGPTL3 (angiopoietin-like 3 protein) lowers plasma LDL (low-density lipoprotein) cholesterol levels in patients with homozygous familial hypercholesterolemia is unknown. We investigated apoB (apolipoprotein B) containing lipoprotein kinetic parameters in patients with homozygous familial hypercholesterolemia, before and after treatment with evinacumab. Approach and Results: Four patients with homozygous familial hypercholesterolemia underwent apoB kinetic analyses in 2 centers as part of a substudy of a trial evaluating the efficacy and safety of evinacumab in patients with homozygous familial hypercholesterolemia. The enrichment of apoB with the stable isotope (5,5,5- 2 H 3 )-Leucine was measured in VLDL (very LDL), IDL (intermediate-density lipoprotein), and LDL at different time points before and after intravenous administration of 15 mg/kg evinacumab. Evinacumab lowered LDL-cholesterol by 59±2% and increased IDL apoB and LDL apoB fractional catabolic rate in all 4 homozygous familial hypercholesterolemia subjects, by 616±504% and 113±14%, respectively. VLDL-apoB production rate decreased in 2 of the 4 subjects. Conclusions: In this small study, ANGPTL3 inhibition with evinacumab is associated with an increase in the fractional catabolic rate of IDL apoB and LDL apoB, suggesting that evinacumab lowers LDL-cholesterol predominantly by increasing apoB-containing lipoprotein clearance from the circulation. Additional studies are needed to unravel which factors are determinants in this biological pathway. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT04722068.

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  1. [14]Millar JS Duffy D Gadi R Bloedon LT Dunbar RL Wolfe ML Movva R Shah A Fuki IV McCoy M. Potent and selective PPAR-alpha agonist LY518674 upregulates both ApoA-I production and catabolism in human subjects with the metabolic syndrome. Arterioscler Thromb Vasc Biol. 2009; 29: 140– 146. doi: 10.1161/ATVBAHA.108.171223 18988892 PMC2746746 · DOI

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Authors
Reeskamp, L. F., Millar, J. S., Wu, L., Jansen, H., van Harskamp, D., Schierbeek, H., Gipe, D. A., Rader, D. J., Dallinga-Thie, G. M., Hovingh, G. K., & Cuchel, M.
Affiliations
  • Amsterdam UMC Location University of Amsterdam (NL)
  • University of Pennsylvania (US)
  • Division of Translational Medicine and Human Genetics, Department of Medicine (J.S.M., L.W., D.J.R., M.C.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.
  • Stable Isotope Research Laboratory, Endocrinology, Vrije Universiteit (D.v.H., H.S.), Amsterdam UMC, location AMC, University of Amsterdam, The Netherlands.
  • Regeneron (United States) (US)
Corresponding author
Cuchel, Marina
Venue
Arteriosclerosis, Thrombosis, and Vascular Biology
Published
2021-05-05
Volume
41
Issue
5
Pages
1753-1759
ISSN
  • 1079-5642 (ISSN-L)
  • 1524-4636
OpenAlex
W3135251972
Cited by
109
References
22
Citations by year
2026: 13 · 2025: 14 · 2024: 25 · 2023: 17 · 2022: 22 · 2021: 17 · 2020: 1
FWCI
19.03
Type
journal article
Language
en
Open access
Locations
  • Arteriosclerosis Thrombosis and Vascular Biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • Regeneron Pharmaceuticals
  • National Institutes of Health (UL1TR001878)
  • National Heart, Lung, and Blood Institute (R01HL148769)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
evinacumab, homozygous familial hypercholesterolemia, apolipoprotein B, intermediate density lipoprotein, LDL cholesterol, fractional catabolic rate, lipoprotein clearance, monoclonal antibody therapy
MeSH terms
Angiopoietin-like Proteins, Angiopoietin-Like Protein 3, Adult, Antibodies, Monoclonal, Anticholesteremic Agents, Female, Homozygote, Humans, Hyperlipoproteinemia Type II, Lipoproteins, LDL, Cholesterol, LDL, Liver, Male, Mutation, Netherlands, Pennsylvania, Phenotype, Receptors, LDL, Time Factors, Biomarkers, Treatment Outcome, Genetic Predisposition to Disease, Apolipoprotein B-100, Lipoproteins, IDL

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