A Study of the Effects of Single Dose Corticosteroids on Response to Allergens
- Registration Number
- NCT00828061
- Lead Sponsor
- Merck Sharp & Dohme LLC
- Brief Summary
This study will investigate whether changes in inflammatory mediators produced by the nose after exposure to an allergen can be used to evaluate the anti-inflammatory effects of novel drugs for the treatment of allergic asthma.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 19
Inclusion Criteria
- Patient is allergic to Timothy grass pollen
- Female patients have a negative pregnancy test and agree to use birth control throughout the study
- Male patients agree to use birth control throughout the study
- Patient has been a nonsmoker for at least 6 months
- Patient agrees to avoid the use of aspirin and other Non-steroidal anti-inflammatory drugs (NSAIDs) throughout study
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Exclusion Criteria
- Patient is breastfeeding
- Patient has any respiratory disease other than mild stable asthma that does not require treatment
- Patient consumes more than 3 alcoholic beverages per day
- Patient consumes more than 6 caffeinated beverages per day
- Patient has had major surgery or has donated or lost 1 unit of blood within 4 weeks of screening
- Patient has severe allergies
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Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description A Placebo placebo C prednisone 25 mg prednisone B prednisone 10 mg prednisone
- Primary Outcome Measures
Name Time Method Fold Change From Baseline at Hour 8 in Interleukin 5 (IL-5) Concentration Baseline and Hour 8 post nasal allergen challenge Comparison of the Change in Allergen-induced Interleukin 5 (IL-5) as Measured in Nasal Exudates After a Single Dose of Low or High Dose of Oral Prednisone Relative to Placebo
- Secondary Outcome Measures
Name Time Method Change From Baseline at Hour 8 in the Percent of Total Cells That Are Eosinophils Baseline and Hour 8 post nasal allergen challenge Comparison of the Change in the Percent of Total Cells That Are Eosinophils Measured in Nasal Lavage After a Single Dose of 10 mg or 25 mg Prednisone Relative to Placebo