Studying Genes in Blood and Lung Fluid Samples From Patients With Chronic Obstructive Pulmonary Disease With or Without a Previous Diagnosis of Lung Cancer or With Asthma Treated With Budesonide and Formoterol
Conditions
- Lung Cancer
- Precancerous Condition
Interventions
- DRUG: budesonide/formoterol fumarate dihydrate inhalation aerosol
- GENETIC: DNA methylation analysis
- GENETIC: comparative genomic hybridization
- GENETIC: microarray analysis
- OTHER: bronchoalveolar lavage
- OTHER: immunoenzyme technique
- OTHER: laboratory biomarker analysis
- PROCEDURE: bronchoscopy
Sponsor
British Columbia Cancer Agency
Collaborators