A Phase 2/3 interventional study of Achipex in Asthma, sponsored by University of Utah. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2005-09-20.
Sponsored by University of Utah · Phase 2/3, Interventional, and Diagnostic
HYPOTHESIS
Gastroesophageal reflux is a major contributor to exercise-triggered asthma.
Two groups of patients will be studied: those with asthma who have difficulty with exertion, those without asthma who experience difficulty with exertion. Both groups will experience gastroesophageal reflux (GER) twice of less per week. Patients will complete a treadmill exam to determine their VO2 max. They will then undergo pH monitoring while exercising for 30 minutes at 65-70% of their VO2 max. Subjects will be given placebo or acid suppression pill for 12 weeks. At the end of 12 weeks, the subjects will repeat the exercise (30 minutes) and 24-hour pH study.
PRIMARY OBJECTIVE
To determine whether patients with exercise-triggered asthma experience GER during exercise.
SECONDARY OBJECTIVES
To determine whether the exercise-induced GER within the subjects relates temporally to their exertional asthma.
To evaluate the efficacy of potent acid suppression with a proton pump inhibitor in suppressing exercise-triggered GER and asthma in these subjects.
METHODS
Population to be evaluated:
Exercise-triggered asthmatics - defined as asthmatics with exertion as their primary exacerbating factor and experiencing less than two episodes of classic gastroesophageal reflux a week.
These patients will be randomized into three different treatment groups:
12 patients will be studied in each group.
DATA
pH data - Data will be collected on the frequency and duration of the reflux episodes (number of episodes and the percent time the esophageal pH is less than 4.0). This will then be correlated with the respiratory symptom and changes in spirometry. A symptom index will be designed to associate the episodes of reflux and bronchospasm that occur within 5 minutes of a drop in esophageal pH.
Exercise Tolerance/Symptoms - comparisons will be made between the three groups regarding symptomatology during exercise after randomization to either placebo or differing doses of Aciphex.
Spirometry testing - done after exercise test. Comparisons between baseline and following treatment Symptoms scores - both the overall numerical grades of the patients quality of life and the number of asthmatic episodes and rescue inhaler use will be compared to baseline after the 12 week study.
STUDY DURATION
The asthma database at the University covers approximately 500 patients. A database search will be performed to identify patients suitable for recruitment. Additional recruitment, if needed, will be pursued through radio advertising. Once the study is initiated, the baseline time for therapy is 12 weeks for each patient. An estimate of the time necessary to complete the study is 15 months.
STATISTICS
Exercise triggered asthma has not been well studied with respect to its relationship to GER. This study will be considered a pilot study with 12 subjects per arm. Results from this study may be used to power a follow up study.
3,921 studies on the registry are indexed under Asthma; 507 are open to participants now.
This study's enrollment of 36 is below the median of 83 across 2,752 interventional studies indexed under Asthma.
Browse Asthma studies →University of Utah is the lead sponsor of 969 studies on the registry; 178 are open to participants now.
Of its 107 completed or terminated interventional studies of FDA-regulated products, 62 (58%) have results posted.
Counted across the registry records on this site, refreshed daily.
Inclusion Criteria:
Exclusion Criteria:
Exclusion criteria will be the following:
To determine whether patients with exercise-triggered asthma experience GER during exercise.
To determine whether the exercise-induced GER within the subjects relates temporally to their exertional asthma.
This study is completed, as verified in Sep 2005. You cannot join it, but the record below documents what was studied.
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