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

October 5, 2010 updated by: University of Saskatchewan

The Effects of Caffeine on Exhaled Nitric Oxide Levels and Methacholine PC20

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 Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

15

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Saskatchewan
      • Saskatoon, Saskatchewan, Canada, S7N 0W8
        • University of Saskatchewan

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • clinical diagnosis of asthma
  • FEV1 greater than 65%

Exclusion Criteria:

  • asthma is poorly controlled
  • presence of other airway disease (e.g. COPD)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: coffee with caffeine
Other: caffeine
Starbuck's Grande Pike Roast coffee
Placebo Comparator: decaffeinated coffee
Starbuck's Grande Pike Roast Decaf
Other: No caffeine
Starbuck's Grande Pike Roast Decaffeinated Coffee

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
methacholine pc20
Time Frame: 1 hour post ingestion
1 hour post ingestion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Saskatchewan

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2010

Primary Completion (Actual)

February 1, 2010

Study Completion (Actual)

February 1, 2010

Study Registration Dates

First Submitted

January 26, 2010

First Submitted That Met QC Criteria

January 26, 2010

First Posted (Estimate)

January 27, 2010

Study Record Updates

Last Update Posted (Estimate)

October 7, 2010

Last Update Submitted That Met QC Criteria

October 5, 2010

Last Verified

October 1, 2010

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • BIO REB 09-186

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Locations

3
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