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Can a cannabis compound sharpen or dull the mind? a study puts CBG to the test

NCT ID NCT05324982

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 27, 2026 · Last updated Jul 28, 2026 · Updated 1 time

Summary

This trial investigates how a single oral dose of cannabigerol (CBG), a natural compound from the cannabis plant, affects healthy adults. Over five sessions, participants receive either a placebo or one of four doses of CBG, then undergo eight hours of monitoring including blood and urine tests, heart rate and blood pressure checks, and computer-based tasks measuring attention, memory, and reaction speed. The goal is to understand CBG's safety, how the body processes it, and its short-term effects on the mind and body.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
an oral cannabis compound called cannabigerol (CBG)
What this could lead to
If successful, this study could provide the first detailed data on how CBG behaves in the human body, potentially guiding future research into its medical uses.
What could go wrong
This is a very early, small study in healthy volunteers, so results may not apply to people with medical conditions. The effects of CBG are still largely unknown, and it may cause side effects like other cannabis compounds.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

12 people

The number who actually took part.

Started

Aug 2022

Finished

Aug 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Have provided written informed consent. 2. Be between the ages of 18 and 55. 3. Be in good general health based on a physical examination, medical history, vital signs, and screening urine and blood tests. 4. Test negative for recent cannabis use in urine at the screening visit and again upon admission for the experimental sessions. 5. Test negative for other drugs of abuse, including alcohol, at the screening visit and upon arrival for the experimental session. 6. Not be pregnant or nursing (if female). All females must have a negative serum pregnancy test at the screening visit and a negative urine pregnancy test at clinic admission. 7. Have a body mass index (BMI) in the range of 18 to 30 kg/m2. 8. Blood pressure at Screening Visit does not exceed a systolic blood pressure (SBP) of 150 mmHg or a diastolic blood pressure (DBP) of 90 mmHg. 9. Self-report prior experience using cannabis, but no use of any cannabinoid products in the prior 30 days. 10. Have not donated blood in the prior 30 days. Exclusion Criteria: 1. Non-medical use of psychoactive drugs other than, nicotine, alcohol, or caffeine in the 30-days prior to the Screening Visit. 2. History of or current evidence of significant medical or psychiatric illness judged by the investigator to put the participant at greater risk of experiencing an adverse event due to exposure or completion of other study procedures. 3. Endorse suicidal intent as indexed by endorsement of questions #4 and #5 on the C-SSRS. 4. Use of an over-the-counter, systemic or topical drug(s), herbal supplement(s), or vitamin(s) within 14 days of experimental sessions; which, in the opinion of the investigator or sponsor, will interfere with the study result or the safety of the subject. 5. Use of a prescription medication (with the exception of birth control prescriptions) within 14 days of experimental sessions; which, in the opinion of the investigator or sponsor, will interfere with the study result or the safety of the subject. 6. History of clinically significant cardiac arrhythmias or vasospastic disease (e.g., Prinzmetal's angina). 7. Enrolled in another clinical trial or have received any drug as part of a research study within 30 days prior to dosing. 8. Epilepsy or a history of seizures. 9. Individuals with anemia for whom, in the opinion of the study team, participation would pose increased medical risk. 10. Women of childbearing potential, or men who are sexually active with a woman of childbearing potential, who are unwilling or unable to use an acceptable method of contraception.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Behavioral Pharmacology Research Unit

    Baltimore, Maryland, 21224, United States

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