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Early Airway Response to Allergen in Asthmatics (MK-0000-176)

Phase 1
Completed
Conditions
Asthma
Interventions
Drug: Placebo
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
Inclusion Criteria
  • 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)
Exclusion Criteria
  • 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
GroupInterventionDescription
PlaceboPlaceboPlacebo
NedocromilNedocromilNedocromil
Primary Outcome Measures
NameTimeMethod
Change in Plasma 9P at 20 MinutesPre-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 MinutesPre-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
NameTimeMethod
Allergen-induced Concentrations of Sputum LTC42 hours post allergen challenge

Concentrations of LTC4 in sputum at 2 hours post-allergen challenge

Allergen-induced Concentrations of Sputum LTD42 hours post allergen challenge

Concentrations of LTD4 in sputum at 2 hours post-allergen challenge

Allergen-induced Changes in Urinary Leukotriene (LT) E4Baseline and 2 hours post allergen challenge

Fold change over baseline in urinary LTE4 at 2 hours post-allergen challenge

Allergen-induced Concentrations of Sputum LTE42 hours post allergen challenge

Concentrations of LTE4 in sputum at 2 hours post-allergen challenge

Allergen-induced Changes in Urinary 9PBaseline and 2 hours post allergen challenge

Fold change over baseline in Urinary 9P at 2 hours post allergen challenge

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