Effects of Caffeine on Methacholine Challenge and Exhaled Nitric Oxide Levels.

University of Saskatchewan15 enrolled

Overview

To investigate whether or not the ingestion of caffeine with alter airway responsiveness to methacholine and/or change the level of exhaled nitric oxide.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Asthma

Interventions

caffeineOTHER

Starbuck's Grande Pike Roast coffee

No caffeineOTHER

Starbuck's Grande Pike Roast Decaffeinated Coffee

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * clinical diagnosis of asthma * FEV1 greater than 65% Exclusion Criteria: * asthma is poorly controlled * presence of other airway disease (e.g. COPD)

Locations (1)

University of Saskatchewan

Saskatoon, Saskatchewan, Canada

Outcomes

Primary Outcomes

methacholine pc20

Time frame: 1 hour post ingestion

Data from ClinicalTrials.gov

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