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Improved adherence with once-daily versus twice-daily dosing of mometasone furoate administered via a dry powder inhaler: a randomized open-label study.

BMC pulmonary medicine 2010 Jan 5; 10(1):1

Link to PubMed abstract

Price D, Robertson A, Bullen K, Rand C, Horne R, Staudinger H

ABSTRACT: BACKGROUND: Poor adherence with prescribed asthma medication is a major barrier to positive treatment outcomes. This study was designed to determine the effect of a once-daily administration of mometasone furoate administered via a dry powder inhaler (MF-DPI) on treatment adherence compared with a twice-daily administration. METHODS: This was a 12-week open-label study designed to mimic an actual clinical setting in patients [greater than or equal to]12 years old with mild-to-moderate persistent asthma. Patients were randomized to receive MF-DPI 400 ug once-daily in the evening or MF-DPI 200 ug twice-daily. Adherence was assessed primarily using the number of actual administered doses reported from the device counter divided by the number of scheduled doses. Self-reports were also used to determine adherence. Health-related quality of life, healthcare resource utilization, and days missed from work or school were also reported. RESULTS: 1233 patients were randomized. The mean adherence rates, as measured by the automatic dose counter, were significantly better (P<0.001) with MF-DPI 400 ug once-daily in the evening (93.3%) than with MF-DPI 200 ug twice-daily (89.5%). Mean adherence rates based on self-reports were also significantly better (P<0.001) with MF-DPI 400 ug QD PM (97.2%) than with MF-DPI 200 ug twice-daily (95.3%). Adherence rates were lower in adolescents (12-17 years old). Health-related quality of life improved by 20% in patients using MF-DPI once-daily in the evening and by 14% in patients using MF-DPI twice-daily. Very few (<8%) patients missed work/school. CONCLUSION: Mean adherence rates were greater with a once-daily dosing regimen of MF-DPI than with a twice-daily dosing regimen. This trial was completed prior to the ISMJE requirements for trial registration.

Keywords: mometasone inhaler