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Gaceta Sanitaria
versão impressa ISSN 0213-9111
Resumo
IBARRONDO, Oliver et al. Probabilistic cost-utility analysis and expected value of perfect information for the Oncotype multigenic test: a discrete event simulation model. Gac Sanit [online]. 2020, vol.34, n.1, pp.61-68. Epub 18-Maio-2020. ISSN 0213-9111. https://dx.doi.org/10.1016/j.gaceta.2018.07.012.
Objective
To carry out a cost-utility analysis of the application of the Oncotype genomic test to inform the decision to use or not to use chemotherapy in the Basque Country (Spain).
Method
The cost-utility study was carried out using a discrete event simulation model representing the natural history of breast cancer. The decision of treatment with chemotherapy based on Oncotype was compared with the standard of treatment based on clinical-pathological criteria. The model included clinical data from Basque hospitals and the literature and was processed by deterministic and probabilistic analysis to calculate the incremental cost-effectiveness ratio (ICER), the cost-effectiveness plane, the acceptability curve and the expected value of perfect information. The study adopted both a health and societal perspective.
Results
From a health perspective, the deterministic analysis estimated an ICER for Oncotype of 17,453 euros/quality-adjusted life year (QALY), discount included, and 9,613 euros/QALY without the discount. Eighty five percent (85%) of the simulations were below the efficiency threshold for Spain. The parametric variability associated with the Oncotype results was the main uncertainty factor in the decision.
Conclusions
Oncotype is a cost-effective intervention from a health system perspective since each QALY gained costs less than 25,000 euros. From a societal perspective, it is dominant since it provides greater health and is accompanied by cost savings.
Palavras-chave : Oncotype Dx; Genomic test; Cost-effectiveness; Acceptability curve; Expected value of perfect information; Discrete event simulation.