Colorado Marijuana Users Health Cohort

Status unconfirmed

Conditions studied: COPD, Insomnia, Cannabis

In brief

In Colorado, marijuana is currently used for both recreational and medicinal purposes.To learn more about the positive and negative long term medical effects of marijuana use. Information obtained during this study may identify new markers that influence the development of lung diseases such as COPD. The Investigators are also interested in learning more about the effects of marijuana use for insomnia and how it may or may not affect sleep.

Key facts

Study ID

NCT02735954

Run by

National Jewish Health

People needed

2000

Starts

2014-09-01

Expected to finish

2019-12-01

Last updated by the study team

2019-03-13

Who can join

Age: 21 and older, up to 80. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Colorado-only study
• Age 21-80 years and one of the categories below
• Marijuana use: use of any cannabis (smoked, vaped, edible, etc.) on average more than 3 days per week for at least 1 year
• Combined marijuana use and Tobacco use (current or former): ≥ 30 pack year cigarette smoking history
• Non-marijuana users
• Sleep sub-study:
• Enrollment in the main cohort building study and a qualifying score on the Insomnia Severity Index questionnaire

You may not qualify if…

• Respiratory disorder other than COPD or asthma
• Lung surgery with removal of a lobe or more or lung volume reduction surgery
• Lung cancer or other cancer under active treatment during past 12 months
• ≥ 30 pack year cigarette smoking history for combined marijuana and cigarette users
• Pregnancy
• Use of antibiotics and/or systemic steroids for any lung infection within the last month
• Inability to use albuterol
• Subject enrolled in COPDGene or SPIROMICS
• Sleep sub-study:
• Inability to complete home sleep study

Where it is running

• National Jewish Health — Denver, Colorado, United States

Full record on ClinicalTrials.gov

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