Copyright ©ERS Journals Ltd 2006 Formoterol as needed with or without budesonide in patients with intermittent asthma and raised NO levels in exhaled air: a SOMA study1 Skin and Allergy Hospital, Helsinki University Central Hospital, 2 AstraZeneca, Helsinki, 4 Pikonlinna Hospital, Tampere University Hospital, Tampere, 5 Paimio Hospital, Turku University Central Hospital, Turku, Finland., 3 Center for Allergy, University Hospital, Linköping, 6 AstraZeneca, Södertälje, and 7 SEMECO AB, Lund, Sweden. CORRESPONDENCE: T. Haahtela, Skin and Allergy Hospital, Helsinki University Central Hospital, FIN-00290 Helsinki, Finland. Fax: 358 947186500. E-mail: tari.haahtela{at}hus.fi Keywords: Asthma guidelines, budesonide, exhaled nitric oxide, formoterol, mild intermittent asthma, Turbuhaler®
Received: November 2, 2005
Patients with mild intermittent asthma sometimes show signs of inflammation, and guidelines suggesting bronchodilator therapy alone as needed may be questioned.
The current study compared as-needed use of a rapid-acting ß2-agonist with as-needed use of a ß2-agonist and corticosteroid combination as the only medication in asthma patients with intermittent symptoms. A total of 92 nonsmoking asthma patients (of 187 screened) using only an inhaled ß2-agonist as needed (28 males, 64 females; mean age 37 yrs; mean forced expiratory volume in one second (FEV1) 101% predicted, mean reversibility 6.5% pred and fractional exhaled nitric oxide (FeNO)
The primary variable of efficacy was change in FeNO. Baseline FeNO was 60 ppb and 59 ppb in the budesonide/formoterol and formoterol groups, respectively. Mean reductions in FeNO in the budesonide/formoterol and formoterol groups were 18.2 ppb and 2.8 ppb, respectively (95% confidence interval (CI) 7.523.5 ppb). The reduction in the budesonide/formoterol group occurred during the first 4 weeks of treatment and remained at this low level. Mean FEV1 increased by 1.8% pred normal value in the budesonide/formoterol group and decreased by 0.9% pred normal value in the formoterol group (95% CI -4.7 -0.7). In the budesonide/formoterol group, use of
In conclusion, as-needed use of an inhaled corticosteroid together with a rapid-acting bronchodilator may be more beneficial than a ß2-agonist alone in patients with intermittent asthma and signs of airway inflammation. The long-term benefits are unknown.
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