Effect of Tiotropium on Inflammation and Exacerbations in COPD
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Patients with COPD experience exacerbations that are a major cause of morbidity. Exacerbations are associated with increased airway and systemic inflammation and those experiencing frequent exacerbations demonstrate increased inflammation in the stable state. Tiotropium has been shown to reduce exacerbation frequency and it might be postulated that this is due to a reduction in inflammation. The study will compare airway inflammation and exacerbation frequency in patients with COPD on tiotropium or placebo.
Condition or disease
Chronic Obstructive Pulmonary Disease
Patients with COPD will be randomised to tiotropium or placebo in addition to their usual medication. They will be followed prospectively over 1 year and provide sputum for quantification of IL-6 and IL-8 at baseline and at 3 monthly intervals.Serum IL-6 will also be quantified at baseline and over the year. Changes in inflammatory markers will be assessed by analysis of area under the curve of log transformed data. Exacerbation frequency will be calculated from patient diary cards using a previously validated symptom-based exacerbation definition.
A Randomised, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Changes in Inflammatory Markers in Induced Sputum Following Treatment With Tiotropium Inhalation Capsules 18mcg Once Daily in Patients With Chronic Obstructive Pulmonary Disease
Study Start Date :
Study Completion Date :
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Layout table for eligibility information
Ages Eligible for Study:
Child, Adult, Older Adult
Sexes Eligible for Study:
Accepts Healthy Volunteers:
diagnosis of COPD,
FEV1 < 80% predicted,
minimum 10 pack year smoking history
history of malignancy,
history of clinically significant pulmonary disease