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SMART therapy in adolescent and adults patients with moderate persistent asthma: a cost-utility analysis

Abstract Background Recent asthma guidelines, recommends for persistent asthma as first alternative low dose inhaled budesonide-formoterol maintenance and reliever over fixed combination of low doses inhaled corticosteroids - long-acting beta-agonist, or fixed-dose inhaled corticosteroids. Concerns arise as to which of the proposed alternatives has the best possible cost-effectiveness profile. This study aimed to assess the health and economic consequences of SMART, fixed combination, and fixed-dose inhaled corticosteroids in patients with moderate-severe persistent asthma. Methods A probabilistic Markov model was created to estimate the cost and quality-adjusted life-years (QALYs) of patients with persistent asthma. Total costs and QALYs of SMART, fixed combination, and fixed-dose inhaled corticosteroids were calculated over a lifetime horizon. Multiple sensitivity analyses were conducted. Cost-effectiveness was evaluated at a willingness-to-pay value of $19,000. Results The model suggests a potential gain of 1.27 and 1.34 QALYs per patient per year on SMART respect to fixed combination and fixed-dose ICS respectively. We observed a reduction of US$4 in total discounted cost per person-year on SMART with respect to fixed combination and US$0.1 respect to fixed-dose ICS. In the deterministic and probabilistic sensitivity analyses, our base-case results were robust to variations of all assumptions and parameters Conclusion SMART therapy was found to be cost-effective regarding fixed combination and fixed-dose inhaled corticosteroids. This evidence supports the use of SMART therapy in Colombia and must to be replicated in others middle-income countries.