Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana

Completed · Phase 2

Conditions studied: Smoking, Marijuana

In brief

The objective of this study is to assess the effects of oral cannabidiol (CBD; 0, 200, 400, 800 mg) on smoked marijuana's (0, 5.6% THC) subjective, reinforcing, cognitive, and cardiovascular effects. This experiment is expected to reveal CBD's intrinsic effects when combined with placebo marijuana, as well as its ability to modulate the behavioral effects of active marijuana.

Key facts

Study ID

NCT01844687

Run by

National Institute on Drug Abuse (NIDA)

People needed

50

Starts

2013-05-01

Expected to finish

2014-10-01

Last updated by the study team

2019-12-09

Who can join

Age: 18 and older, up to 50. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults between the ages of 18 and 50.
• Current marijuana use: Minimum of four times per week, 0.5 joints per occasion during the preceding 4 weeks.
• Able to perform study procedures
• Women practicing an effective form of birth control

You may not qualify if…

• Female subjects who are currently pregnant or breastfeeding.
• Current, repeated illicit drug use other than marijuana
• Presence of significant medical illness
• History of heart disease
• Request for drug treatment
• Current parole or probation
• Recent history of significant violent behavior
• Major psychiatric disorder

Where it is running

• University of Kentucky, Straus Behavioral Research Bldg., 515 Oldham Ct. — Lexington, Kentucky, United States
• Marijuana Outpatient Lab 1051 Riverside Dr. Unit #120 — New York, New York, United States
• Center for Drug and Alcohol Programs, Room 459 North, 67 President St. — Charleston, South Carolina, United States

Full record on ClinicalTrials.gov

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