asthma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Perennial asthmatic patients visiting our outpatient clinic, who have been treated with inhaled corticosteroid and are stable for at least 6 months with FEV1<80% or FEV1/FVC<70% or %MMF<70% after inhalation of 200 mcg of salbutamol, and are never- or non-current nonsmokers with a smoking history of <5 pack-years, and were never treated with leukotriene receptor antagonists.
Exclusion criteria
Exclusion criteria: Subjects who suffered from respiratory tract infection in the previous month. Subjects who were taking NSAIDs.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Bronchial wall thickness, mean lung density, % low attenuation area | — |
Secondary
| Measure | Time frame |
|---|---|
| Pulmonary function tests Sputum eosinophil count Exhaled NO level Procollagen type 1 terminal peptide of sputum supernatant | — |
Countries
Japan
Contacts
Kyoto University Hospital Department of Respiratory Medicine