An observational study in COPD and Smoking, sponsored by Weill Medical College of Cornell University. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-05-02.
Sponsored by Weill Medical College of Cornell University · Observational
Cigarette smoking is the major risk factor for developing chronic obstructive pulmonary disease (COPD). Patients with COPD have difficulty clearing mucus and debris from their airways. Even smokers who have not developed COPD may have difficulty clearing the airways. This is partly because smoking impairs the function of cilia, tiny hairs lining the airways that sweep out mucus to keep the airways clean. The investigators have found that smoking reduces the length of cilia, which may contribute to the worsened cilia function in smoking and COPD. This is true even in smokers who show no signs of lung disease. The investigators believe that smoking affects levels of genes in lung cells, resulting in shorter cilia.
In this study, we will use bronchoscopy (inserting a scope into the lungs) to obtain lung cells by brushing cells from the airways and we will study genes that may be related to cilia length. Our goals are (1) to prove that exposure to cigarette smoke results in shorter cilia, (2) to learn which specific genes control cilia length, and (3) to learn how smoking affects the gene ODF2 and what effect this has on cilia. Understanding how smoking affects cilia may help us identify new ways to treat patients with COPD.
Weill Medical College of Cornell University is the lead sponsor of 867 studies on the registry; 160 are open to participants now.
Of its 119 completed or terminated interventional studies of FDA-regulated products, 91 (76%) have results posted.
Counted across the registry records on this site, refreshed daily.
The study will involve healthy nonsmokers and healthy smokers.
Exclusion Criteria:
Healthy non-smokers
Healthy non-smokers
Evidence that exposure to cigarette smoke will result in shorter cilia length in human airway epithelial
Cilia length will be measured using three preparation techniques: air-dried cytospins, detached cilia on cytospins, and mounted hydrated aliquots of cells.
Time frame: One Year
Plan to share: Undecided
No publications or documents are linked to this record.
This study is completed, as verified in Apr 2016. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Weill Medical College of Cornell University