Effect of Inhaled Steroids on Gene Expression in the Lungs - 2
|ClinicalTrials.gov Identifier: NCT00826748|
Recruitment Status : Terminated (Funding)
First Posted : January 22, 2009
Results First Posted : January 25, 2018
Last Update Posted : January 25, 2018
|Condition or disease||Intervention/treatment||Phase|
|Chronic Obstructive Pulmonary Disease (COPD)||Drug: Beclomethasone||Phase 4|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||24 participants|
|Intervention Model:||Factorial Assignment|
|Masking:||None (Open Label)|
|Official Title:||Effect of Inhaled Steroids on Gene Expression in the Lungs of Healthy Smokers|
|Study Start Date :||November 2010|
|Primary Completion Date :||December 2014|
|Study Completion Date :||December 2014|
Experimental: Treated Smokers
The treatment with inhaled beclomethasone will be administered to this cohort from Day 1 to Day 7 via a metered dose inhaler (QVAR 80 HFA) delivering 80 micrograms of beclomethasone per puff. QVAR will be purchased by the Department of Genetic Medicine. The dose will be 2 puffs twice a day for 7 days.
The treatment with inhaled beclomethasone will be administered to Group A from Day 1 to Day 7 via a metered dose inhaler (QVAR 80 HFA) delivering 80 micrograms of beclomethasone per puff. QVAR will be purchased by the Department of Genetic Medicine. The dose will be 2 puffs twice a day for 7 days
Other Name: QVAR 80 HFA
No Intervention: Non-Treated Smokers
This cohort will act as control and include healthy smokers who receive no treatment.
No Intervention: Non-Smokers
This cohort will act as control and include healthy non-smokers who receive no treatment.
- Number of Participants With A Significant Change in Gene Expression in the Airway Epithelium and Alveolar Macrophages at Days 7 and 14 [ Time Frame: Analysis will be done on samples collected on Day 7 and Day 14 following initiation of therapy compared to baseline values obtained on the day prior to initiation of treatment. ]The primary study endpoint is a change in the gene expression in the airway epithelium or alveolar macrophages of healthy smokers following treatment with beclomethasone. Airway epithelium and alveolar macrophages are processed to yield high quality RNA. Complementary DNA (cDNA) is transcribed from the RNA in vitro and the product is hybridized onto gene microarray chips. The chip is then scanned and the image analyzed using the Affymetrix Microarray suite version 5 (MAS5) algorithm. Using GeneSpring software the data is normalized and differential expression is determined by fold change (up or down regulation) of the individual genes by comparing the geometric mean expression value from the airway epithelium and alveolar macrophages obtained from Day 7 and Day 14 following initiation of therapy to baseline values.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00826748
|United States, New York|
|Weill Cornell Medical College|
|New York, New York, United States, 10021|
|Principal Investigator:||Ronald G Crystal, MD||Weill Medical College of Cornell University|