The effect of vitamin D supplementation versus placebo on moderate to severe asthma
Phase 2
- Conditions
- Asthma.Asthma
- Registration Number
- IRCT201402029014N22
- Lead Sponsor
- Vice-chancellor for Research the Technology, Hamadan University of Medical Sciences
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 136
Inclusion Criteria
(a) having moderate to severe asthma; (b) age of 18 or above; (c) documented vitamin D deficiency (vitamin D level less than 20 ngr/ml).
Exclusion criteria: (a) being pregnant; (b) using calcium or vitamin D during the last 3 months; (c) having history of malabsorption or using drugs effecting vitamin D absorption and metabolism; (d) having other chronic obstructive lung diseases or thoracic skeletal defect.
Exclusion Criteria
Not provided
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Measuring forced expiratory volume in the first second (FEV1). Timepoint: at baseline and eight weeks after treatment. Method of measurement: using spirometer.;Measuring forced vital capacity (FVC). Timepoint: at baseline and eight weeks after treatment. Method of measurement: using spirometer.
- Secondary Outcome Measures
Name Time Method ausea and vomiting. Timepoint: 8 weeks after treatment. Method of measurement: Question.