Cost-Utility Analysis of Long-Acting Beta Agonists versus Leukotriene Receptor Antagonists in Older Adults with Persistent Asthma Receiving Concomitant Inhaled Corticosteroid Therapy.

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Cost-Utility Analysis of Long-Acting Beta Agonists versus Leukotriene Receptor Antagonists in Older Adults with Persistent Asthma Receiving Concomitant Inhaled Corticosteroid Therapy.

Value Health. 2016 Jul-Aug;19(5):537-43

Authors: Altawalbeh SM, Thorpe JM, Thorpe CT, Smith KJ

Abstract
BACKGROUND: Long-acting beta agonists (LABA) and leukotriene receptor antagonists (LTRA) are the major add-on treatments in older adults with persistent asthma when inhaled corticosteroids (ICS) fail to achieve adequate asthma control.
OBJECTIVES: To evaluate the cost-utility of ICS + LABA treatment compared with ICS + LTRA treatment in older adults with asthma.
METHODS: A Markov model was used to estimate the incremental costs and quality-adjusted life expectancy associated with ICS + LABA treatment versus ICS + LTRA treatment in older adults with asthma in the United States from the health system perspective. The HCUPnet 2010 national statistics were used to extract the costs associated with asthma and cardiovascular hospitalizations, and inpatient mortality associated with these events. Event probabilities were predicted using Medicare 2009-2010 claims for older adults with asthma. Treatment costs were estimated on the basis of average wholesale drug price listings, and utility estimates were extracted from the literature. To account for uncertainty, one-way sensitivity analysis and probabilistic sensitivity analysis were performed.
RESULTS: The model predicted that, compared with ICS + LTRA treatment, ICS + LABA treatment costs $5,823 more while gaining 0.03 quality-adjusted life-years (QALYs), resulting in an incremental cost-effectiveness ratio of $209,090 per QALY. Hospitalization probabilities and posthospitalization utilities were the most influential parameters in the one-way sensitivity analysis. Probabilistic uncertainty analysis using Monte-Carlo simulations showed that the probabilities that ICS + LTRA treatment is cost-effective compared with ICS + LABA treatment are 77% and 62% at $50,000 and $100,000 per QALY gained willingness-to-pay thresholds, respectively.
CONCLUSIONS: The cost-effectiveness of ICS + LABA treatment is economically unfavorable in older adults when compared with LTRA as add-on treatment.

PMID: 27565270 [PubMed - in process]

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