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Cost-utility analysis and budget impact of benralizumab as add-on therapy to standard care for severe eosinophilic asthma in Colombia


Introduction: Benralizumab, amonoclonal antibody for human interleukin-5, has been associated with adecrease in asthma exacerbations. The introduction of this drug raises concerns about the economic impact in scenarios with constraints. This study aimed to estimate the cost-utility of benralizumab plus standard care (SoC) vs. SoC alone in adults with severe uncontrolled asthma with evidence of eosinophilic phenotype.

Methods: We constructed aMarkov model with three health states (asthma on benralizumab and SOC, asthma on SOC alone, and death) from ahealthcare system perspective over alifetime horizon. The model was populated using local costs while utilities were derived from international literature. Cost and transition probabilities were obtained from amixture of Colombian-specific and internationally published data.

Results: The incremental cost-effectiveness ratio (ICER) per patient peryear was $US 42,746per QALY gained. Benralizumab treatment would be cost-effective at the recommended societal US 18,000 WTP threshold if the cost of benralizumab is reduced by 41% more than the base case value.

Conclusion: Benralizumab is not cost-effective using WTP of US$18,000per QALY threshold in Colombia. Our study provides evidence that should be used by decision-makers to improve clinical practice guidelines.

Keywords: Health economics; healthcare; public health.

Publicado por PubMed

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