Methacholine Challenge Test in School Children With/Without Asthma RISKA
Recruiting
Observational Study
Asthma Bronchiale
Lung Function Tests
Bronchial Hyperresponsiveness
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Age
- 7 – 15
- Sex
- Any
- Study type
- Observational
- Participants needed
- 260 (estimated)
- Sponsor
- Helsinki University Central Hospital · Other
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About This Trial
The study includes a pre-study telephone interview with healthy controls to assess their eligibility for participation. During the study visit, a background information form and an asthma questionnaire are completed. At the study visit, a methacholine challenge test measuring airway hyperresponsiveness and an exhaled nitric oxide measurement are performed. The effect of medication intensification …
Trial Locations
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Eligibility Criteria
Inclusion Criteria: Healthy Controls
* • Aged 7-15 years, both sexes
* No diagnosis of asthma in childhood
* No inhaled asthma medication during the previous 2 years
* No wheezing or shortness of breath during the previous 2 years
* Written informed consent from the participant and guardia…
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