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Effects of Marijuana Used on Lung Function in Persons With Chronic Obstructive Pulmonary Disease (COPD)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01096303
First Posted: March 31, 2010
Last Update Posted: May 15, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Rosa Estrada Y Martin, The University of Texas Health Science Center, Houston
March 24, 2010
March 31, 2010
May 15, 2017
November 2010
December 31, 2016   (Final data collection date for primary outcome measure)
Obstructive limitation in pulmonary function test [ Time Frame: 1 year ]
Comparison on the severity of obstruction among both groups
Same as current
Complete list of historical versions of study NCT01096303 on ClinicalTrials.gov Archive Site
  • Decreased diffusion capacity for carbon monoxide [ Time Frame: 1 year ]
    Comparison on the severity of decreased DLco among groups.
  • Airtrapping [ Time Frame: 1 year ]
    Comparison on the severity of air-trapping by pulmonary function testing among groups.
Same as current
Not Provided
Not Provided
 
Effects of Marijuana Used on Lung Function in Persons With Chronic Obstructive Pulmonary Disease (COPD)
Effects of Marijuana Smoking on Pulmonary Function in Patients With COPD
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.
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.
Observational
Observational Model: Case-Control
Time Perspective: Cross-Sectional
Not Provided
Not Provided
Non-Probability Sample
COPD patients recruited in pulmonary clinic.
Chronic Obstructive Pulmonary Disease
Not Provided
COPD tobacco and/or marihuana users
COPD patients with history of tobacco and/or marihuana smoking.
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
200
December 31, 2016
December 31, 2016   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • COPD patients former or current tobacco smokers
  • COPD patients former or current tobacco and marihuana smokers

Exclusion Criteria:

  • History of COPD without pulmonary function testing
  • Refusal to provide smoking or marihuana used history
Sexes Eligible for Study: All
25 Years to 90 Years   (Adult, Senior)
No
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01096303
HSC-MS-09-0362
No
Not Provided
Not Provided
Rosa Estrada Y Martin, The University of Texas Health Science Center, Houston
The University of Texas Health Science Center, Houston
Not Provided
Principal Investigator: Rosa M Estrada-Y-Martin, MD The University of Texas Health Science Center, Houston
The University of Texas Health Science Center, Houston
May 2017