Early Airway Response to Allergen in Asthmatics (MK-0000-176)
- Registration Number
- NCT01061333
- Lead Sponsor
- Merck Sharp & Dohme LLC
- Brief Summary
This study will assess the Early Airway Response (EAR) associated change in forced expiratory volume in one second (FEV1) and plasma 9α-11ß-PGF2 ('9P') after single dose pretreatment of nedocromil, montelukast, and mometasone.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 16
- History of mild to moderate Asthma
- In good general health (except for asthma)
- Stable and free of respiratory infection
- Nonsmoker
- Females highly unlikely to conceive (surgically sterilized, postmenopausal, or agrees to use 2 acceptable methods of birth control)
- Nursing mother
- Recent or ongoing upper or lower respiratory tract infection
- Unable to refrain from or anticipates the use of any prescription and non-prescription drugs
- Consumes excessive amounts of alcohol or caffeine
- History of stroke, chronic seizures, or major neurological disorder
- History of cancer
- Received a vaccination within the past 3 weeks
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Placebo Placebo Placebo Nedocromil Nedocromil Nedocromil
- Primary Outcome Measures
Name Time Method Change in Plasma 9P at 20 Minutes Pre-allergen challenge and 20 minutes post allergen challenge Fold change over baseline of plasma 9P at 20 minutes post-allergen challenge
Change in Plasma 9α-11β-PGF2 (9P) at 5 Minutes Pre-allergen challenge and 5 minutes post allergen challenge Fold change over baseline of plasma 9P at 5 minutes post-allergen challenge
Change in Forced Expiratory Volume in 1 Second (FEV1) Pre-allergen challenge and 20 minutes after allergen challenge Maximal percent drop in FEV1 at 20 minutes post allergen challenge
- Secondary Outcome Measures
Name Time Method Allergen-induced Concentrations of Sputum LTC4 2 hours post allergen challenge Concentrations of LTC4 in sputum at 2 hours post-allergen challenge
Allergen-induced Concentrations of Sputum LTD4 2 hours post allergen challenge Concentrations of LTD4 in sputum at 2 hours post-allergen challenge
Allergen-induced Changes in Urinary Leukotriene (LT) E4 Baseline and 2 hours post allergen challenge Fold change over baseline in urinary LTE4 at 2 hours post-allergen challenge
Allergen-induced Concentrations of Sputum LTE4 2 hours post allergen challenge Concentrations of LTE4 in sputum at 2 hours post-allergen challenge
Allergen-induced Changes in Urinary 9P Baseline and 2 hours post allergen challenge Fold change over baseline in Urinary 9P at 2 hours post allergen challenge