Impacto orçamentário para o Sistema Único de Saúde da incorporação do infliximabe biossimilar no tratamento de artrite reumatóide

• Autor(a) principal: Santana, Pamela Karla Guimarães
• Data de Publicação: 2018
• Outros Autores: [e-mail]
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/19354
• topic: Infliximab; Biosimilars; Rheumatoid arthritis; Public-privite partnership; Budget impact; Infliximabe; Biossimilares; Artrite reumatóide; Parceria de desenvolvimento produtivo; Impacto orçamentário; CIENCIAS DA SAUDE::SAUDE COLETIVA

Rheumatoid arthritis (AR) is a chronic, autoimmune, inflammatory disease that affects the joints, but also may produce systemic symptoms. Infliximab is a biologic drug incorporated into the Brazilian Public Health System (SUS) for the treatment of AR, which had a biosimilar approved in 2015. In Brazil, in addition to biosimilar, there is a product derived from a public-private partnership (PDP). This study aimed to estimate the budgetary impact of the incorporation of biosimilar infliximab in the treatment of AR in SUS. The budgetary impact of the incorporation of the PDP product was considered as one of the secondary objectives. Estimates were calculated using a measured demand approach over a five-year time horizon. Two strategies of utilization was estimated for the biosimilar product or PDP: (A) only new cases that would receive the innovative infliximab will use the biosimilar (or the PDP product) and (B) both new cases and 50% of those already in use of the innovative infliximab will use biosimilar (idem). The projections of the AR population were based on data from Datasus and the "market share" of infliximab. In addition, univariate sensitivity analyzes were performed, considering the progressive diffusion and analyses of “best-case scenario” and “worst-case scenario”. The incorporation of biosimilar infliximab and PDP product for new cases (strategy A) would save -R$ 284,430,468.79 and -R$ 366,194,377.69, respectively, in five years. These values would represent reductions of 19% and 24%, respectively, in the health expenditures of infliximab for the treatment of AR. In strategy B, where part of the maintenance therapy patients were also considered, the savings would be -R$ 419,006,071.14 for biosimilar and -R$ 539,455,804.86 for the PDP product. For both drugs, the practiced price was the parameter with the greatest impact on the cost savings estimates, both in strategy A and B. In the sensitivity analysis by progressive diffusion the savings would decrease to -R$ 178,544,332.95 (strategy A) and -R $ 263,639,280.49 (strategy B) for biosimilar and -R $ 229,869,645.03 (strategy A) and -R$ 339,426,443 (Strategy B). In the analysis of best-case scenario, the results showed savings of -R$ 1,011,789,713.83 and -R$ 1,222,955,301.30 for biosimilar and PDP products, respectively. On the other hand, in the worst-case scenario the introduction of the analyzed technologies would result in a health system burden of R$ 8,552,019.91 for the biosimilar and R$ 5,366,519.91 for the PDP product. The incorporation of the biosimilar product in the treatment of AR would reduce the health care expenditures for this treatment, allowing the budget manger to allocate resources more efficiently for the treatment of AR.