Airways symptoms of exposure to cold air

Not Applicable

Completed

• Conditions: Allergic rhinitis, asthma, COPD; Respiratory

• Registration Number: ISRCTN13484593
• Lead Sponsor: meå University

Brief Summary

2019 results in: https://www.ncbi.nlm.nih.gov/pubmed/30821652 [added 08/04/2019]

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2017-04-19
• Study Completion: 2018-05-01
• Last Update Posted: 5 May 2019

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

Healthy group:
1. Non-smokers
2. No allergy or respiratory disease
3. Not on medication
4. Aged 18 and older

Allergic rhinitis group:
1. Non-smokers
2. Symptoms of allergy to common airborne allergens
3. Positive skin prick test
4. Aged 18 and older

Asthma group:
1. Non-smoker
2. Physician-diagnosed asthma (stable)
3. Regular use of asthma medications in the past three months
4. Aged 18 and older

COPD group:
1. Physician diagnosed COPD
2. Current or former smoker (at least ten pack years)
3. FEV1/FVC <0.7 and FEVI <80% of predicted post bronchodilation
4. Daily use of COPD pharmacotherapy for the last three months
5. Aged 18 and older

Elite Skier group:
1. Competitive skiers
2. >400 training hours/year
3. No allergy or asthma
4. Aged 18 and older
5. Non-smokers

Exclusion Criteria

Recent airway infection

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
General and airways symptoms are recorded by focused open interviews (symptom intensity is measured using the Borg CR10 scale) at session one, two and three.

Secondary Outcome Measures

Name	Time	Method
Group comparison of airway symptoms are measured using focused open interviews using the Borg CR10 scale at session one, two and three.