Arrowhead Pharmaceuticals Begins Dosing in Phase 1 Study of ARO-ANG3 for Treatment of Dyslipidemias and Metabolic Diseases
AROANG1001 (NCT03747224) is a Phase 1 single and multiple dose study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamic effects of ARO-ANG3 in adult healthy volunteers and patients with dyslipidemia. The study is designed to enroll up to 70 subjects.
The single-ascending dose (SAD) portion of the study is designed to include up to 4 cohorts of 10 adult healthy volunteers per cohort (6 active: 4 placebo). Each SAD subject will receive a single-dose administration of either placebo or ARO-ANG3 at dose levels of 35, 100, 200, or 300 mg. The multiple-dose portion is designed to include up to 4 patient cohorts, including patients with non-alcoholic fatty liver disease (NAFLD), patients on a stable statin treatment regimen with elevated low-density lipoprotein cholesterol (LDL-C) and triglycerides, patients with heterozygous or homozygous familial hypercholesterolemia, and patients with severe hypertriglyceridemia.
Dyslipidemia is a major risk factor for atherosclerotic cardiovascular disease (Kersten, 2017). While the current standard of care is effective at lowering LDL-C, a large unmet medical need for lipid lowering and risk modifying therapies with novel mechanisms of action persists. Hypertriglyceridemia and elevations in triglyceride-rich lipoproteins represent causative risks for atherosclerosis, and elevated triglycerides also manifest in the form of metabolic syndrome, pancreatitis and hepatic steatosis. Metabolic syndrome is a complex of interrelated risk factors for cardiovascular disease and type II diabetes mellitus.
ANGPTL3 has emerged as an important regulator of plasma lipoprotein levels (including triglycerides, LDL-C, high-density lipoprotein cholesterol, and very low-density lipoprotein cholesterol) by inhibition of enzymes including lipoprotein lipase and endothelial lipase. ANGPTL3 may also be involved in regulating apolipoprotein B particle containing synthesis and hepatocyte clearance of LDL-C through mechanisms independent of the low-density lipoprotein receptor (LDLR) (Xu et al., 2018). This LDLR-independent feature makes ANGPTL3 inhibition potentially applicable as a therapeutic for LDLR-deficient hypercholesterolemic patients.
Intrahepatic targeting of ANGPTL3 may also improve hepatic steatosis which can progress to nonalcoholic steatohepatitis (NASH). Additionally, human genetic studies indicate that ANGPTL3-deficient homozygotes show lower serum insulin, lower serum glucose, and improved measures of insulin resistance compared to non-carriers (Robciuc et al., 2013).
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Arrowhead Pharmaceuticals, Inc.
Vince Anzalone, CFA
626-304-3400
ir@arrowheadpharma.com
Investors and Media:
LifeSci Advisors, LLC
Brian Ritchie
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britchie@lifesciadvisors.com
www.lifesciadvisors.com