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Fingolimod reduces direct medical costs compared to natalizumab in patients with relapsing-remitting multiple sclerosis in The Netherlands
Objectives
To assess the costs of oral treatment with Gilenya® (fingolimod) compared to intravenous infusion of Tysabri® (natalizumab) in patients with relapsing-remitting multiple sclerosis (RRMS) in The Netherlands.
Methods
A cost-minimization analysis was used to compare both treatments. The following cost categories were distinguished: drug acquisition costs, administration costs, and monitoring costs. Costs were discounted at 4%, and incremental model results were presented over a 1, 2, 5, and 10 year time horizon. The robustness of the results was determined by means of a number of deterministic univariate sensitivity analyses. Additionally, a break-even analysis was carried out to determine at which natalizumab infusion costs a cost-neutral outcome would be obtained.
Results
Comparing fingolimod to natalizumab, the model predicted discounted incremental costs of -€2966 (95% CI: -€4209; -€1801), -€6240 (95% CI: -€8800; -€3879), -€15,328 (95% CI: -€21,539; -€9692), and -€28,287 (95% CI: -€39,661; -€17,955) over a 1, 2, 5, and 10-year time horizon, respectively. These predictions were most sensitive to changes in the costs of natalizumab infusion. Changing these costs of €255 within a range from €165-364 per infusion resulted in cost savings varying from €4031 to €8923 after 2 years. The additional break-even analysis showed that infusion costs-including aseptic preparation of the natalizumab solution-needed to be as low as the respective costs of €94 and €80 to obtain a cost neutral result after 2 and 10 years.
Limitations
Neither treatment discontinuation and subsequent re-initiation nor patient compliance were taken into account. As a consequence of the applied cost-minimization technique, only direct medical costs were included.
Conclusions
The present analysis showed that treatment with fingolimod resulted in considerable cost savings compared to natalizumab: starting at €2966 in the first year, increasing to a total of €28,287 after 10 years per RRMS patient in the Netherlands.
Authors
M Heisen, M J Treur, W S van der Hel, S T Frequin, M T Groot, B G Verheggen
Journal
Journal of Medical Economics
Therapeutic Area
Rheumatology
Center of Excellence
Health Economic Modeling & Meta-analysis
Year
2012
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