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

This study is currently recruiting participants.
Verified December 2013 by The University of Texas Health Science Center, Houston
Sponsor:
Information provided by (Responsible Party):
Rosa Estrada Y Martin, The University of Texas Health Science Center, Houston
ClinicalTrials.gov Identifier:
NCT01096303
First received: March 24, 2010
Last updated: December 3, 2013
Last verified: December 2013

March 24, 2010
December 3, 2013
November 2010
March 2014   (final data collection date for primary outcome measure)
Obstructive limitation in pulmonary function test [ Time Frame: 1 year ] [ Designated as safety issue: No ]
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 ] [ Designated as safety issue: No ]
    Comparison on the severity of decreased DLco among groups.
  • Airtrapping [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    Comparison on the severity of air-trapping by pulmonary function testing among groups.
Same as current
Not Provided
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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
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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.
 
Recruiting
300
June 2014
March 2014   (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
Both
25 Years to 90 Years
No
Contact: Rosa M Estrada-Y-Martin, MD 713-500-6828 rosa.m.estrada.y.martin@uth.tmc.edu
United States
 
NCT01096303
HSC-MS-09-0362
No
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
December 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP