The Effects of Cannabidiol and ∆-9-THC in Humans
![]() |
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. |
ClinicalTrials.gov Identifier: NCT01180374 |
Recruitment Status :
Completed
First Posted : August 12, 2010
Last Update Posted : January 31, 2022
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Healthy | Drug: Cannabidiol Drug: Delta-9-THC Drug: Placebo | Early Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 27 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Basic Science |
Official Title: | Cannabidiol Modulation of ∆-9-THC's Psychotomimetic Effects in Healthy Humans |
Actual Study Start Date : | February 1, 2010 |
Actual Primary Completion Date : | October 6, 2014 |
Actual Study Completion Date : | October 6, 2014 |

Arm | Intervention/treatment |
---|---|
Experimental: Active Canabidiol and Active Delta-9-THC |
Drug: Cannabidiol
Active Cannabidiol 5mg. Drug: Delta-9-THC Active Delta-9-THC (0.035mg/Kg) given intravenously over 20 minutes. The dose of THC that you may receive is a small dose and is roughly equivalent to smoking approximately one half to one whole marijuana cigarette, or "joint". |
Placebo Comparator: Placebo and Active Delta-9-THC |
Drug: Delta-9-THC
Active Delta-9-THC (0.035mg/Kg) given intravenously over 20 minutes. The dose of THC that you may receive is a small dose and is roughly equivalent to smoking approximately one half to one whole marijuana cigarette, or "joint". Drug: Placebo Placebo (about a quarter spoon of alcohol with no CBD). |
Experimental: Active Cannabidiol and Placebo |
Drug: Cannabidiol
Active Cannabidiol 5mg. Drug: Placebo Placebo (about a quarter spoon of alcohol with no THC) given intravenously over 20 minutes. |
Placebo Comparator: Placebo and Placebo |
Drug: Placebo
Placebo (about a quarter spoon of alcohol with no CBD). Drug: Placebo Placebo (about a quarter spoon of alcohol with no THC) given intravenously over 20 minutes. |
- Behavioral Measures [ Time Frame: Baseline, +15, +80, +240 ]Subjective effects, perceptual alterations, and cognitive effects will be assessed using visual analog scales, Positive and Negative Symptom Subscale (PANSS), Clinician Administered Dissociative States Scale (CADSS), Psychotomimetic States Inventory (PSI) and a neuro cognitive battery.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 55 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Exposed to Cannabis at least once in lifetime
Exclusion Criteria:
- Cannabis Naive

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01180374
United States, Connecticut | |
VA Connecticut Healthcare System | |
West Haven, Connecticut, United States, 06516 |
Principal Investigator: | Mohini Ranganathan, M.D | Yale University Medical School |
Responsible Party: | Mohini Ranganathan, Principal Investigator, Yale University |
ClinicalTrials.gov Identifier: | NCT01180374 |
Other Study ID Numbers: |
1001006240 |
First Posted: | August 12, 2010 Key Record Dates |
Last Update Posted: | January 31, 2022 |
Last Verified: | January 2022 |
Cannabis Marijuana Cannabidiol |
CBD THC Psychotic Disorders |
Dronabinol Cannabidiol Anticonvulsants Hallucinogens Physiological Effects of Drugs Psychotropic Drugs Analgesics, Non-Narcotic Analgesics |
Sensory System Agents Peripheral Nervous System Agents Cannabinoid Receptor Agonists Cannabinoid Receptor Modulators Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Hormones Hormones, Hormone Substitutes, and Hormone Antagonists |