Cost-effectiveness of budesonide Turbuhaler in the treatment of mild-to-moderate asthma in Japan

ABSTRACT Asthma therapy including inhaled corticosteroids (ICS) has been shown to be effective in many parts of the world, but its use is still limited in Japan. A 6-week, randomized, placebo-controlled, clinical trial was therefore undertaken to assess the efficacy of the ICS budesonideTurbuhaler ( budesonideadministered via the dry-powder inhalerTurbuhaler) in patients in Japan with mild-to-moderate asthma. Prior to, and during, the study, all concomitant medications, except corticosteroid preparations, were allowed (i.e. all pre-study medication was to be maintained throughout the study). In total, 218 patients randomized to receive budesonideTurbuhaler 200μg/day ( n = 53), 400μg/day ( n = 55), 800μg/day ( n = 57) or placebo ( n = 53) were included in the analysis. Due to the increased demand and interest for health economicdata in Japan, this retrospective cost-effectiveness analysisreports on the economic impact of budesonideTurbuhaler compared with placebo (i.e. usual care), based on this clinical trial. At each dosage, budesonideTurbuhaler was significantly more effective than the placebo, according to the number of symptom-free and episode-free days. The number of emergency visits, days of lost production and days of hospitalization were all lower in the budesonideTurbuhaler groups, leading to significantly ( P