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J Allergy Clin Immunol. 2007 Apr;119(4):916-23. Epub 2007 Mar 8.

Adherence with montelukast or fluticasone in a long-term clinical trial: results from the mild asthma montelukast versus inhaled corticosteroid trial.

Author information

1
Johns Hopkins School of Medicine, Baltimore, MD 21224, USA. crand@mail.jhmi.edu

Abstract

BACKGROUND:

Nonadherence with asthma therapy is common and may contribute to poor clinical outcomes.

OBJECTIVE:

To examine the effect of dosing frequency and mode of delivery of therapy on adherence and clinical outcomes.

METHODS:

We examined adherence in patients with mild persistent asthma (15-85 years) enrolled in a randomized study of montelukast (10 mg once daily) or fluticasone (88 microg, 2 puffs twice daily) during a 12-week double-blind treatment period (DB), followed by a 36-week open-label trial (OL). Adherence was monitored using eDEM for montelukast/placebo and MDILog devices for fluticasone/placebo.

RESULTS:

Participants used at least 1 puff of inhaled therapy on 83.3% DB/76.8% OL of days and at least 1 dose of oral therapy on 77.5%/71.4% of days (P < .0001). Subjects used inhaled therapy less than prescribed on 49.5%/57.5% of days, compared with 22.5%/28.6% of days for oral therapy (P < .0001). In the DB, a dose-response relationship was observed with fluticasone and asthma rescue-free days (P = .02) and FEV(1) percent predicted (P < .01) only for patients with FEV(1) < or = 86%. In the OL period, a dose-response relationship was observed with fluticasone and FEV(1) percent predicted (P < .001).

CONCLUSION:

Whereas subjects were more likely to use inhaled fluticasone/placebo at least once a day, subjects were more likely to take once-daily oral montelukast/placebo as prescribed. Clinical outcomes were inconsistently associated with adherence levels.

CLINICAL IMPLICATIONS:

Patients were less likely to be fully adherent with twice-daily therapy than with once-daily therapy, but most still achieved adequate asthma control.

PMID:
17349681
DOI:
10.1016/j.jaci.2006.12.664
[Indexed for MEDLINE]

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