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Recalculation of the budgetary impact of risperidone use for Autism Spectrum Disorder: a case study using measured demand data, Brazil, 2017-2019.

Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil2025

Lopes Luis Phillipe Nagem, Raimundo Augusto César Sousa, Itria Alexander, Caetano Rosângela, Lopes Luciane Cruz

What this study means for families

This study looked at how much money Brazil's health system actually spent on risperidone (a medication sometimes used for autism) compared to what they thought they would spend. The real costs were much higher than predicted - about 50-60% more than expected for both children and adults with autism. This shows that predicting healthcare costs can be difficult and that demand for autism medications might be higher than health officials initially think.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Research summary

This Brazilian case study examined the budgetary impact of risperidone use for autism spectrum disorder in the national health system from 2017-2019. Researchers compared actual medication dispensing data with original budget estimates from health technology assessment reports. The analysis revealed significant differences between predicted and actual costs, with measured demand exceeding initial estimates by approximately 58% for children (BRL 10.4M vs 6.6M predicted) and 53% for adults (BRL 15.1M vs 9.9M predicted). This discrepancy highlights the importance of using real-world data for healthcare budget planning and suggests that demand for autism-related medications may be higher than initially anticipated by health authorities.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Key findings

  • 1

    Actual risperidone costs for children with ASD exceeded budget estimates by 58% (BRL 10.4M vs 6.6M predicted)

    Confidence: highRelevance: Indicates higher than expected medication utilization in pediatric ASD population
  • 2

    Adult ASD risperidone costs were 53% higher than predicted (BRL 15.1M vs 9.9M estimated)

    Confidence: highRelevance: Suggests significant underestimation of adult ASD medication needs in health planning
  • 3

    Measured demand data differed substantially from health technology assessment predictions across all age groups

    Confidence: highRelevance: Highlights importance of real-world data in healthcare budget planning for ASD interventions

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Clinical implications

Healthcare systems may be significantly underestimating the demand and costs for autism-related medications. This has important implications for budget planning, resource allocation, and ensuring adequate medication access for autistic individuals. The findings suggest need for more accurate demand forecasting methods and consideration of real-world utilization patterns in health technology assessments.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Limitations

This is a single-country case study limited to one medication over three years. The analysis relies on dispensing data which may not reflect actual consumption or clinical appropriateness. No information provided about factors contributing to the budget variance or clinical outcomes associated with the increased utilization.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Original abstract

To analyze the budgetary impact of use of risperidone for autism spectrum disorder (ASD) in the Brazilian National Health System (SUS). This is a case study with a document-based approach, which compared the estimates of the budgetary impact analyses presented in the recommendation reports of the National Commission for the Incorporation of Technologies (CONITEC) for the use of risperidone for ASD with amounts ​​recalculated from measured demand data. The recalculation for children (0-17 years) and adults (≥18 years) was made using data from the Open Health Intelligence Room platform on the dispensing of risperidone in the SUS, considering a three-year time period (2017-2019). The total budgetary impact over three years of use of risperidone for ASD showed differences between measured demand (children: BRL 10,389,702.70; adults: BRL 15,075,767.80) and that estimated by CONITEC in its recommendation reports (children: R$ 6,579,809.00; adults: R$ 9,877,790.18).

The budgetary impact of use of risperidone for ASD, based on measured demand, differed from the impact initially predicted in CONITEC's recommendation reports.

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Evidence Grade

Emerging

limited

Grade assigned by AutismInsights based on study type and published abstract.

Study Details

Journal
Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil
Year
2025
PMID
40802386
DOI
10.1590/S2237-96222025v34e20240732.en

MeSH Terms

HumansBrazilRisperidoneAutism Spectrum DisorderChildChild, PreschoolAdolescentAdultBudgetsAntipsychotic AgentsInfantNational Health ProgramsYoung AdultInfant, Newborn