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J Cardiol. 2019 Mar;73(3):218-227. doi: 10.1016/j.jjcc.2018.10.004. Epub 2018 Nov 30.

Efficacy and safety of alirocumab 150mg every 4 weeks in hypercholesterolemic patients on non-statin lipid-lowering therapy or lowest strength dose of statin: ODYSSEY NIPPON.

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Teikyo Academic Research Center, Teikyo University, Tokyo, Japan. Electronic address:
Department of Cardiovascular Medicine, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Division of Diabetes and Metabolism, Department of Internal Medicine, Iwate Medical University, Iwate, Japan.
Department of Molecular Innovation in Lipidology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.
Clinical Sciences and Operations, R&D, Sanofi Japan, Tokyo, Japan.
Cardiovascular Medical, Sanofi Japan, Tokyo, Japan.
Cardiovascular Development Unit, R&D Sanofi, Montpellier, France.
Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.



Alirocumab, a fully human monoclonal antibody to proprotein convertase subtilisin/kexin type 9, given every 2 weeks (Q2W), significantly reduced low-density lipoprotein cholesterol (LDL-C) levels in Japanese hypercholesterolemic patients on background statin. We evaluated alirocumab 150mg every 4 weeks (Q4W) in patients on lowest-dose statin or non-statin lipid-lowering therapy (LLT).


ODYSSEY NIPPON was a double-blind study conducted in Japanese patients with LDL-C ≥100mg/dL (heterozygous familial hypercholesterolemia or non-familial hypercholesterolemia with coronary heart disease) or ≥120mg/dL (non-familial hypercholesterolemia, Japan Atherosclerosis Society category III) on atorvastatin 5mg/day or non-statin LLT. Patients were randomized (1:1:1) to subcutaneous alirocumab 150mg Q4W, alirocumab 150mg Q2W, or placebo for the 12-week double-blind treatment period (DBTP), followed by a 52-week open-label treatment period (OLTP). At entry into the OLTP, patients received alirocumab 150mg Q4W, with possible up-titration to 150mg Q2W at Week 24.


Least-square mean percent change in LDL-C from baseline at Week 12 (primary efficacy endpoint) was -43.8% for alirocumab Q4W, -70.1% for Q2W, and -4.3% for placebo. During the OLTP, mean LDL-C change from baseline was -45.1% at Week 20, with a further reduction at Week 36, with achieved levels maintained to Week 64. Percent of patients with ≥1 adverse event (DBTP) was 51.9% with alirocumab Q4W, 47.2% with Q2W, and 46.4% with placebo. Most common adverse events were infections and infestations (25.9%, 22.6%, 17.9%, respectively), gastrointestinal disorders (13.0%, 9.4%, 12.5%), nervous system disorders (5.6%, 7.5%, 10.7%), and general disorders and administration-site conditions (3.7%, 11.3%, 5.4%).


Hypercholesterolemic Japanese patients who tolerate only lowest-strength dose statin or non-statin LLT can achieve robust LDL-C reduction with alirocumab 150mg Q4W, in addition to their current LLT. Alirocumab 150mg Q4W dosing was efficacious and generally well tolerated without new safety concerns. ( number: NCT02584504).


Alirocumab; Cardiovascular risk; Hypercholesterolemia; PCSK9 inhibitor; Statin

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