Aging and Marijuana: Benefits, Effects, and Risks
Completed
Conditions studied: Cannabis Use
In brief
Investigators will gather data on both the beneficial and harmful effects of edible cannabis of varying composition (THC-only vs. CBD-only vs. THC+CBD), and will examine the process by which older adult cannabis users decide what type of cannabis product is preferred.
Key facts
- Study ID
- NCT05188404
- Run by
- University of Colorado, Boulder
- People needed
- 326
- Starts
- 2021-09-20
- Expected to finish
- 2025-05-25
- Last updated by the study team
- 2025-06-18
Who can join
Age: 60 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- At least 60 years of age
- Able to provide informed consent
- Cannabis Users: Must not currently use cannabis more than 7 times per month and not for pain, sleep, depression or anxiety in the past 6 months
- Cannabis Non-users: Should NOT have used cannabis in the past year and have not used regularly (e.g., more than weekly) for more than one year in the past 20 years
- Cannabis Users: Must be interested in using cannabis for at least one of the following complains: pain, sleep problems, depression, anxiety
- Non-users: Must NOT be interested in using cannabis but have at least one of the following complaints: pain, sleep problems, depression, anxiety
- Cannabis users: must be comfortable using edible cannabis and having a mobile laboratory (Dodge van) parked at their home
- Female participants must be postmenopausal
- Comfortable reading and writing in English
- Planning to stay in the Boulder/Denver area for the next month
- Must be comfortable with blood draws
You may not qualify if…
- Blood alcohol level > 0 at screening (to sign consent form)
- Report of other drug use (cocaine, opiates, methamphetamine) in the past 90 days or fail urine screen for any of these drugs
- Past or current diagnosis of psychosis
- Current use of antipsychotic medications
- Heavy drinking; Alcohol Use Disorder Identification Test (AUDIT) test score >8
- Inability/discomfort/unwillingness with getting in and out of the mobile laboratory van
- History of vertigo or falls within the past six months
Where it is running
- University of Colorado Boulder — Boulder, Colorado, United States
Full record on ClinicalTrials.gov
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