Status:
COMPLETED
Strategies to Improve Asthma and Treatment of Asthma in Canadians
Lead Sponsor:
Ottawa Hospital Research Institute
Conditions:
Asthma
Eligibility:
All Genders
18-100 years
Brief Summary
Our study will enroll 644 randomly-selected Canadians who have been diagnosed with asthma by a physician within the previous five years. It will be determined what diagnostic tests were initially perf...
Eligibility Criteria
Inclusion
- Patient must have a recent diagnosis of asthma by a physician. Diagnosis of asthma must have occurred within 5 years prior to entry into the study.
- Patient must be at least 18 years old.
Exclusion
- Patients in whom methacholine challenge is contraindicated
- Patients using chronic oral prednisone.
- Patients with heart attack or stroke within three previous months, and those with known aortic or cerebral aneurysms.
- Pregnant patients (unknown effect of methacholine on the fetus) and breastfeeding patients (unknown whether methacholine is excreted in breast milk).
- Patients unable to provide informed consent.
- Patients not able to perform spirometry and/or methacholine challenge testing.
- Patients who have a greater than 10 pack-year smoking history (this will exclude patients with possible COPD).
- Patients who currently have active pulmonary Tuberculosis
- Patients who have had eye surgery in the past 3 months or who have a detached retina
- Patients involved in another interventional asthma study
Key Trial Info
Start Date :
November 1 2011
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
March 1 2016
Estimated Enrollment :
701 Patients enrolled
Trial Details
Trial ID
NCT01525381
Start Date
November 1 2011
End Date
March 1 2016
Last Update
March 31 2016
Active Locations (1)
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1
Ottawa Hospital
Ottawa, Ontario, Canada, K1H 8L6