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This is an observational study of 1000 participants to further define the nature of early chronic obstructive pulmonary disease (COPD) in younger, at-risk individuals.
The study has three main goals:
Procedures (methods): All participants will undergo study related questionnaires assessing medical history, smoke exposure and use, medication use, social and behavioral health, pulmonary symptoms, food frequency, and will provide nasal swab, blood, stool, and urine samples, pulmonary function testing to determine function, sputum induction to provide a sputum sample for airway biospecimen analysis, and CT imaging of the lungs.
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Inclusion criteria
Exclusion criteria
Severe asthma, which is defined as any of the following:
Concurrent participation in a therapeutic trial where treatment is blinded.
Active pregnancy at the time of the baseline visit or planning to become pregnant during the course of the study. This special population is being excluded to minimize potential for fetal radiation exposure.
Cognitive dysfunction that prevents the participant from completing study procedures.
BMI > 35.0 kg/m^2 at baseline, due to the effects of body weight on CT scan imaging quality.
The presence of a respiratory condition other than COPD (including chronic bronchitis and emphysema) or asthma, such as interstitial lung disease or pulmonary fibrosis, or of a comorbid condition that in the judgment of the investigator may be the principal cause of respiratory symptoms (e.g., dyspnea or decreased exercise tolerance).
Any illness expected to cause mortality in the next three years.
Any implanted metallic devices or prosthesis above the waist that could degrade thoracic CT scan image quality.
History of thoracic radiation or thoracic surgery with resection of lung tissue.
Known HIV/AIDS infection.
Current illicit substance abuse, excluding marijuana.
History of or current use of IV Ritalin.
History of or current use of heroin.
History of illegal IV drug use within the last 10 years or more than 5 instances of illegal IV drug use ever.
1,000 participants in 4 patient groups
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Central trial contact
Lori A Bateman, MS; David Couper, PhD
Data sourced from clinicaltrials.gov
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