期刊
OPHTHALMOLOGY
卷 115, 期 6, 页码 1039-1045出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ophtha.2007.08.033
关键词
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Objective: To assess the conferred value and average cost-utility (cost-effectiveness) for intravitreal ranibizumab used to treat occult/minimally classic subfoveal choroidal neovascularization associated with age-related macular degeneration (AMD). Design: Value-based medicine cost-utility analysis. Participants: MARINA (Minimally Classic/Occult Trial of the Anti-Vascular Endothelial Growth Factor Antibody Ranibizumab in the Treatment of Neovascular AMD) Study patients utilizing published primary data. Methods: Reference case, third-party insurer perspective, cost-utility analysis using 2006 United States dollars. Main Outcome Measures: Conferred value in the forms of (1) quality-adjusted life-years (QALYs) and (2) percent improvement in health-related quality of life. Cost-utility is expressed in terms of dollars expended per QALY gained. All outcomes are discounted at a 3% annual rate, as recommended by the Panel on Cost-effectiveness in Health and Medicine. Data are presented for the second-eye model, first-eye model, and combined model. Results: Twenty-two intravitreal injections of 0.5 mg of ranibizumab administered over a 2-year period confer 1.039 QALYs, or a 15.8% improvement in quality of life for the 12-year period of the second-eye model reference case of occult/minimally classic age-related subfoveal choroidal neovascularization. The reference case treatment cost is $52 652, and the cost-utility for the second-eye model is $50 691/QALY. The quality-of-life gain from the first-eye model is 6.4% and the cost-utility is $123 887, whereas the most clinically simulating combined model yields a quality-of-life gain of 10.4% and cost-utility of $74 169. Conclusions: By conventional standards and the most commonly used second-eye and combined models, intravitreal ranibizumab administered for occult/minimally classic subfoveal choroidal neovascularization is a cost-effective therapy. Ranibizumab treatment confers considerably greater value than other neovascular macular degeneration pharmaceutical therapies that have been studied in randomized clinical trials.
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