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  • Title: The Cost-Effectiveness of Ranibizumab for the Treatment of Diabetic Macular Edema.
    Author: Brown GC, Brown MM, Turpcu A, Rajput Y.
    Journal: Ophthalmology; 2015 Jul; 122(7):1416-25. PubMed ID: 25935787.
    Abstract:
    PURPOSE: To assess the incremental, comparative effectiveness (patient value gain) and cost effectiveness (financial value gain) associated with 0.3-mg intravitreal ranibizumab injection therapy versus sham therapy for diabetic macular edema (DME). DESIGN: Value-Based Medicine (Center for Value-Based Medicine, Flourtown, PA) 14-year, cost-utility analysis using patient preferences and 2012 United States real dollars. PARTICIPANTS: Published data from the identical Ranibizumab Injection in Subjects with Clinically Significant Macular Edema with Center Involvement Secondary to Diabetes Mellitus (RISE and RIDE) clinical trials. METHODS: An incremental cost-utility analysis was performed using societal and third-party insurer cost perspectives. Costs and outcomes were discounted with net present value analysis at 3% per annum. MAIN OUTCOME MEASURES: The incremental comparative effectiveness was measured in: (1) quality-adjusted life year (QALY) gain and (2) percent patient value (quality-of-life) gain. Cost effectiveness was quantified with the cost-utility ratio (CUR) measured as $/QALY. RESULTS: The 14-year, incremental patient value gain conferred by intravitreal ranibizumab therapy for diabetic maculopathy was 0.9981 QALY, equating to an 11.6% improvement in quality of life. The direct, ophthalmic medical cost for ranibizumab therapy in 1 eye was $30 116, whereas for 2 eyes it was $56 336. The direct, nonophthalmic, medical costs saved from decreased depression, injury, skilled nursing facility admissions, nursing home admissions, and other vision-associated costs totaled $51 758, resulting in an overall direct medical cost of $4578. The net mean societal cost for bilateral ranibizumab therapy was -$30 807. Of this total, decreased caregiver costs accrued a $31 406 savings against the direct medical costs, whereas decreased wage losses accrued a $3978 savings. The third-party insurer CUR for bilateral ranibizumab therapy was $4587/QALY. The societal cost perspective for bilateral therapy was -$30 807/QALY, indicating that ranibizumab therapy dominated sham therapy because it conferred both a positive QALY gain of 0.9981 and a financial value gain (positive financial return on investment) of $30 807 referent to the direct ophthalmic medical costs expended. CONCLUSIONS: Intravitreal ranibizumab therapy for the treatment of DME confers considerable patient (human) value gain. It also accrues financial value to patients, public and private insurers, and society.
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