Duration of Protective Effect From Inhaled Ipratropium Bromide on Methacholine Airway Hyperresponsiveness

• Status: Completed
• Trial end date: 2008-04-01
• Target enrollment: 0
• Participant gender: All

Summary

Certain lung disease medications can influence diagnostic tests and research investigations. This study will investigate how long ipratropium bromide must be withheld before a methacholine challenge test can be conducted. This information will be useful for validating current guidelines.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Saskatchewan
• Collaborator: Royal University Hospital Foundation
• Treatments: Bromides; Ipratropium; Methacholine Chloride

Criteria

Inclusion Criteria:

• Diagnosis of asthma; stable and controlled

• FEV1 greater than or equal to 65% predicted

Exclusion Criteria:

• Concomitant lung disease other than asthma