Effects of Marijuana Used on Lung Function in Persons With Chronic Obstructive Pulmonary Disease (COPD)
- Conditions
- Chronic Obstructive Pulmonary Disease
- Registration Number
- NCT01096303
- Brief Summary
The main hypothesis is that persons that smoke or smoked tobacco and marihuana have worsen lung function as compared with persons that only smoke or smoked tobacco.
- Detailed Description
We will follow persons with already diagnosed COPD (chronic bronchitis and/or emphysema). Obtain their smoking history: tobacco and marihuana and review their pulmonary function study results. Then we are planning to compare both groups.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 200
- COPD patients former or current tobacco smokers
- COPD patients former or current tobacco and marihuana smokers
- History of COPD without pulmonary function testing
- Refusal to provide smoking or marihuana used history
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Obstructive limitation in pulmonary function test 1 year Comparison on the severity of obstruction among both groups
- Secondary Outcome Measures
Name Time Method Airtrapping 1 year Comparison on the severity of air-trapping by pulmonary function testing among groups.
Decreased diffusion capacity for carbon monoxide 1 year Comparison on the severity of decreased DLco among groups.
Trial Locations
- Locations (2)
The University of Texas- Health Science Center at Houston
🇺🇸Houston, Texas, United States
Lyndon B Johnson General Hospital
🇺🇸Houston, Texas, United States