Journal
INTERNATIONAL JOURNAL OF CARDIOLOGY
Volume 267, Issue -, Pages 183-187Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2018.04.122
Keywords
Cost-effectiveness; PCSK9 inhibitors; Lipids; Cardiovascular disease; Prevention
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Background: For patients in whom statins are not tolerated or effective as monotherapy, proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) represent a new class of lipid lowering therapies that may reduce low-density lipoprotein cholesterol (LDL-C) levels by up to 50% and lower cardiovascular events. While an important treatment option, the cost-effectiveness of PCSK9i in Australia remains unknown. This study aimed to determine the cost-effectiveness of PCSK9i compared to placebo in the prevention of atherosclerotic cardiovascular disease (CVD). Methods and results: A Markov cohort state-transition model was developed in Microsoft Excel. A hypothetical sample of 1000 individuals based on subjects in the Further Cardiovascular Outcomes Research with PCSK9 Inhibition in Subjects with Elevated Risk (FOURIER) trial populated the model. With each five-year cycle, model subjects could have non-fatal CVD events (myocardial infarction and/or stroke), or die from CVD or other causes. Follow-up was simulated for 25 years. CVD risk reduction, cost and utility data were gathered from published sources. At current acquisition prices (AU$ 8174 per person per year), the incremental cost effectiveness ratio (ICER) was AU$ 308,558 per quality-adjusted life year (QALY) saved. Acquisition prices would need to be reduced to approximately AU$ 1500 per person per annum for PCSK9i to reach the arbitrary cost-effectiveness threshold of AU$ 50,000 per QALY saved. Conclusion(s): PCSK9i are an effective alternative for those with existing CVD or at high risk of CVD in whom statin therapy alone is ineffective, but are not cost-effective to the Australian healthcare system based on current prices. (c) 2018 Elsevier B.V. All rights reserved.
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