Published ahead of print on October 22, 2004, doi:10.1164/rccm.200407-884OC
Am. J. Respir. Crit. Care Med., Volume 171, Number 2, January 2005, 129-136
A more recent version of this article appeared on January 15, 2005
Submitted on July 8, 2004
Accepted on October 18, 2004
Budesonide/Formoterol Combination Therapy as Both Maintenance and Reliever Medication in Asthma
Paul M O'Byrne1*, Hans Bisgaard2, Philippe P Godard3, Massimo Pistolesi4, Mona Palmqvist5, Yuanjue Zhu6, Tommy Ekstrom7, and Eric D Bateman8
1 Firestone Institute for Respiratory Health, St. Joseph's Hospital, Hamilton, Ontario, Canada,
2 COPSAC Clinical Research Unit, University Hospital of Copenhagen, Copenhagen, Denmark,
3 Services des Maladies Respiratories and Bronchomotricite, Hopital Arnaud de Villeneuve, Montpellier, France,
4 Department of Critical Care, Section of Respiratory Medicine, University of Florence, Florence, Italy,
5 Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Gothenburg, Sweden,
6 Respiratory Department, Peking Union Medical College Hospital, Beijing, China,
7 AstraZeneca Research and Development, Lund, Sweden,
8 University of Cape Town, Cape Town, South Africa
* To whom correspondence should be addressed. E-mail: obyrnep{at}mcmaster.ca.
Asthma control is improved by combining inhaled corticosteroids with long-acting beta2-agonists. However, fluctuating asthma control still occurs. We hypothesized that, in patients receiving low maintenance dose budesonide/formoterol (bud/form), replacing short-acting beta2-agonist (SABA) reliever with as-needed bud/form would provide rapid symptom relief and simultaneous adjustment in anti-inflammatory therapy, thereby reducing exacerbations.
In this double-blind, randomized, parallel-group study, 2760 asthma patients aged 4 to 80 years (forced expiratory volume in 1 second [FEV1] 60 to 100% predicted) received either terbutaline 0.4 mg as SABA with bud/form 80/4.5 ug bid (bud/form + SABA) or bud 320 ug bid (bud + SABA), or bud/form 80/4.5 ug bid with 80/4.5 ug as-needed (bud/form maintenance + relief). Children used a once-nocte maintenance dose.
Bud/form maintenance + relief prolonged time to first severe exacerbation (p < 0.001; primary endpoint), resulting in a 45-47% lower exacerbation risk vs. bud/form + SABA (hazard ratio [HR]: 0.55; 95% confidence interval (CI): 0.44, 0.67) or bud + SABA (HR: 0.53; 95% CI: 0.43, 0.65). Bud/form maintenance + relief also prolonged the time to the first, second, and third exacerbation requiring medical intervention (p < 0.001), reduced severe exacerbation rate, and improved symptoms, awakenings, and lung function compared with both fixed dosing regimens.
Thus, using budesonide/formoterol for both maintenance and relief reduces the morbidity of ashma when compared with traditional fixed dosing regimens.
Key words: inhaled corticosteroids, long-acting beta2-agonists, management, single inhaler
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Copyright © 2004 American Thoracic Society
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