asthma
Conditions
Interventions
None listed
Sponsors
Universitair Medisch Centrum Groningen
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: 1. Age 18 years or older. 2. Previous diagnosis of asthma 3. Included in the GWA-study on asthma ;Additional inclusion criteria for the performance of spirometry and a histamine provocation test: 4. No current asthma symptoms 5. No use of asthma medication
Exclusion criteria
Exclusion criteria: 1. Presence of serious concomittant diseases 2. Pregnancy Additional exclusion criterium for histamine provocation testing: 3. FEV1 lower than 1.2 L
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Presence of complete asthma remission: no current asthma symptoms (asthma attacks, wheeze), no current use of asthma medication, FEV1 pre bronchodilator > 80% predicted, no bronchial hyperresponsiveness (PC20 histamine > 32 mg/ml). Associations between the single nucleotide polymorphisms genotyped in the GWA study and the presence of complete asthma remission will be studied using logistic regression analysis. | — |
Countries
Netherlands
Outcome results
None listed