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Ann. Allergy Asthma Immunol. · Jul 2009
Randomized Controlled Trial Multicenter StudyEfficacy and tolerability of once-daily budesonide/formoterol pressurized metered-dose inhaler in adults and adolescents with asthma previously stable with twice-daily budesonide/ formoterol dosing.
- Edward M Kerwin, John J Oppenheimer, Craig LaForce, Bhash Parasuraman, Christopher J Miller, Liza O'Dowd, and Mitchell Goldman.
- Clinical Research Institute of Southern Oregon PC, Medford, Oregon 97504, USA. ekerwin@allergyasthmaso.com
- Ann. Allergy Asthma Immunol. 2009 Jul 1; 103 (1): 62-72.
BackgroundThe goal of asthma therapy is to control symptoms using minimal pharmacologic intervention.ObjectiveTo evaluate the efficacy and tolerability of once-daily budesonide/formoterol vs once-daily budesonide in patients stable with twice-daily budesonide/formoterol.MethodsThis double-blind, 12-week study enrolled 619 patients 12 years and older with mild to moderate asthma. After 4 to 5 weeks of twice-daily budesonide/formoterol pressurized metered-dose inhaler (pMDI), 80/4.5 microg x 2 inhalations (320/18 microg/d), stable patients were randomized 1:1:1:1 to 2 inhalations twice daily of budesonide/formoterol pMDI, 80/4.5 microg (320/18 microg/d), or 2 inhalations once daily (evening) of budesonide/formoterol pMDI, 160/4.5 microg or 80/4.5 microg (320/9 microg or 160/9 microg/d), or budesonide pMDI, 160 microg (320 microg/d).ResultsAll budesonide/formoterol groups maintained significantly more favorable evening predose forced expiratory volume in 1 second (FEV1), morning peak expiratory flow (PEF), daytime/nighttime asthma symptoms, nighttime rescue medication use, and rescue medication-free days vs budesonide. Variables evaluated during the end of the once-daily dosing interval (evening predose FEV1, evening PEF, daytime asthma symptoms, and daytime rescue medication use) significantly favored twice-daily budesonide/formoterol vs all treatments. Twice-daily budesonide/formoterol demonstrated significantly more favorable results for symptom-free and asthma control days vs all treatments and awakening-free nights vs budesonide. Asthma Quality of Life Questionnaire and Asthma Control Questionnaire results significantly favored twice-daily budesonide/formoterol vs budesonide (P < or = .018). All treatments were well tolerated.ConclusionsPulmonary function and asthma control were more effectively maintained with all budesonide/formoterol regimens vs once-daily budesonide and with twice-daily budesonide/formoterol at twice the daily formoterol dose vs both once-daily budesonide/formoterol doses.
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