Changes in Inflammatory Markers During Pulmonary Rehabilitation Based on Exacerbation States in COPD

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

85 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-07-31

Study Completion Date

2018-08-28

Brief Summary

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This study will examine the inflammatory response to exercise encompassed as part of a standard pulmonary rehabilitation programme in patients with chronic obstructive pulmonary disease (COPD). Patients will be split into two groups, frequent exacerbators or infrequent exacerbators, dependent upon exacerbation history to compare responses to pulmonary rehabilitation amongst phenotypes.

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Detailed Description

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Pulmonary rehabilitation has been proven to benefit COPD patients in terms of quality of life and functional capabilities. The effects of pulmonary rehabilitation (exercise) on immune function are unclear despite clear benefits of exercise on immune function in healthy individuals being identified. Moderate-intensity and frequency of exercise has been shown to decrease the risk of upper respiratory tract infections in healthy individuals in comparison to sedentary individuals. Respiratory infections, also known as exacerbations, in COPD are the main cause of hospitalisation and mortality. Therefore, if exercise can modulate immune function in COPD, it can be encouraged further in COPD to reduce hospitalisation risk. However, it is important to compare the effects of exercise amongst different phenotypes as frequent exacerbators are known to have elevated inflammatory markers, and may consequently respond to exercise differently to infrequent exacerbators, paving a rationale for a different approach to this subset of patients.

Conditions

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Chronic Obstructive Pulmonary Disease

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Healthy smokers

Recruited in accordance with inclusion/exclusion criteria with no medical history of COPD diagnosis and currently smoke.This group will be recruited by a nurse using medical records to assess smoking status and age-matching to the COPD groups. A resting blood sample will be taken from these patients and used to compare baseline measurements with the COPD groups.