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A Study of the Effects of Single Dose Corticosteroids on Response to Allergens

Phase 1
Completed
Conditions
Allergic Rhinitis
Interventions
Drug: Placebo
Drug: prednisone
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
GroupInterventionDescription
APlaceboplacebo
Cprednisone25 mg prednisone
Bprednisone10 mg prednisone
Primary Outcome Measures
NameTimeMethod
Fold Change From Baseline at Hour 8 in Interleukin 5 (IL-5) ConcentrationBaseline 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
NameTimeMethod
Change From Baseline at Hour 8 in the Percent of Total Cells That Are EosinophilsBaseline 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

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