Cost-effectiveness analysis and budgetary impact of antipsychotics available in the Brazilian Unified Health System

  • Vianna C
  • Fernandes R
  • Mosegui G
  • et al.
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Abstract

Objective: To carry out a cost-effectiveness and budget impact analysis of antipsychotic use in adults to treat schizophrenia from the perspective of the Unified Health System (SUS). Methods: A Markov model simulated the treatment of schizophrenic patients with an initial average age of 25 years and a lifetime horizon. The possibility of combining drugs resulted in 20 pharmacotherapeutic strategies. Results: The lowest-cost strategy, risperidone/olanzapine, obtained values of $45,092.77 with effectiveness of 15.97 QALY. The incremental cost-effectiveness ratio in dollars/QALY of olanzapine/risperidone was 2,470.24, and risperidone/ziprasidone was 352,671.90, compared to the first option. All other therapeutic combinations were dominated. The budgetary impact assessment indicated that the most cost-effective choice could generate savings of US$ 1,555.00 on average, per patient, over five years. Conclusion: The therapeutic proposal with the lowest cost per patient was risperidone combined with olanzapine, revealing these two drugs as a strategy with lower budgetary impact and better cost-effectiveness.Realizar uma análise de custo-efetividade e impacto orçamentário do uso de antipsicóticos em adultos para o tratamento da esquizofrenia, na perspectiva do Sistema Único de Saúde (SUS). Métodos: Um modelo de Markov simulou o tratamento de pacientes com esquizofrenia, com idade média inicial de 25 anos e horizonte lifetime. Analisaram-se 20 estratégias farmacoterapêuticas. Resultados: A estratégia de menor custo – risperidona/olanzapina – obteve valores de US$ 45.092,77, eficácia de 15,97 QALY. A relação custo-efetividade incremental em dólares/QALY da olanzapina/risperidona foi de 2.470,24, e de 352.671,90 para risperidona/ziprasidona, em comparação com a primeira opção. Todas as outras combinações terapêuticas foram dominadas. A avaliação do impacto orçamentário indicou que a escolha mais econômica geraria economia de US$ 1.555,00 em média, por paciente, ao longo de cinco anos. Conclusão: A proposta terapêutica de menor custo por paciente foi a risperidona associada à olanzapina, estratégia de menor impacto orçamentário e melhor custo-efetividade.

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APA

Vianna, C., Fernandes, R., Mosegui, G., & Pagnin, V. (2020). Cost-effectiveness analysis and budgetary impact of antipsychotics available in the Brazilian Unified Health System. Jornal Brasileiro de Economia Da Saúde, 12(3), 195–205. https://doi.org/10.21115/jbes.v12.n3.p195-205

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