COPD emphysema
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: In order to be eligible to participate in this study, a subject must meet all of the following criteria: Inclusion criteria subjects with COPD • Age 40+ years • COPD gold II-IV; FEV 1 10 pack years • Willing and able to comply with the study protocol • COPD diagnosis is based on presence of airflow obstruction (post-bronchodilator spirometry FEV1/ FVC with z-score
Exclusion criteria
Exclusion criteria: • Not full comprehensive in the Dutch language. • A liaison with the coordinating or principal investigator, which could likely influence the decision to participate in this study voluntarily (in concordance with the WMO - article 5) • Other diseases which could influence pulmonary function and/or the immune system such as: o A possible infection of the upper- or lower respiratory tract 6 weeks prior to the collection of materials; o Active malignancy o Lung cancer diagnosis (also in the past) o Asthma as the predominant disease according to the investigator's opinion, a past history of asthma is allowed. o Current pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1a. Cross sectional design To compare the differences in number of inflammatory cells (eosinophils, neutrophils, ILC1 cells, ILC2 cells and cytokines) in blood and sputum in COPD patients and controls during stable disease. 1b. Longitudinal study design To compare the differences in number of inflammatory cells (leucocyte differentiation, ILC1 cells, ILC2 cells and cytokines) in blood during stable disease and exacerbation in COPD patients. | — |
Secondary
| Measure | Time frame |
|---|---|
| 2a. Cross sectional study design To measure physiological factors (lung function, activity level) and relate them to inflammatory profile. 2b. Cross sectional study design To study the effect of aging on inflammation, physiology, psychology, quality of life and co- morbidities in COPD. | — |
Countries
Netherlands