Acute Psychological and Physiological Effects of Cannabigerol
CBG
Psychological and Physiological Effects of Cannabigerol (CBG)
1 other identifier
interventional
100
1 country
1
Brief Summary
The purpose of this study is to examine the acute effects of cannabigerol (CBG) on various psychological (e.g., anxiety, stress, mood, memory, impairment, intoxication, side effects) and physiological (blood pressure, cortisol, heart rate variability, electrodermal activity, pain tolerance, temperature) outcomes. Further, potential side effects of CBG (sleepiness/fatigue, dry mouth/eyes, increased appetite, and dizziness nausea) will be assessed. As such, the study is focused on better understanding some of the potentially beneficial and detrimental effects of CBG on humans.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2024
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 6, 2024
CompletedFirst Posted
Study publicly available on registry
October 15, 2024
CompletedStudy Start
First participant enrolled
October 28, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 31, 2026
December 24, 2024
December 1, 2024
2 years
October 6, 2024
December 18, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (11)
Anxiety
Anxiety will be assessed along a 0 to 10 rating scale at baseline (T0), \~40 minutes after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3). Change scores from baseline to each time point will be examined.
Anxiety ratings will occur within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Stress
Stress will be assessed along a 0 to 10 rating scale at baseline (T0), \~40 minutes after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3). Change scores from baseline to each time point will be examined.
Stress ratings will occur within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Mood
Mood will be assessed along a 0 to 10 rating scale at baseline (T0), \~40 minutes after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3). Change scores from baseline to each time point will be examined.
Mood ratings will occur within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Salivary Cortisol
Salivary Cortisol will be collected using Salivettes at baseline (T0), \~40 minutes after ingesting placebo or CBG (T1), after the stress test (T2), and after memory the memory tests (T3). Change scores from baseline to each time point will be examined.
Saliva samples will be collected within the 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Electrodermal Activity
Electrodermal Activity will be assessed continuously using an Embrace wristband device from baseline to the end of the study. Primary points of interest include baseline (T0), after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3).
Electrodermal Activity will be measured continuously for the duration of the 2.5 hour session for each session with sessions scheduled approximately one week apart
Heart Rate/Heart Rate Variability
Heart rate/heart rate variability will be assessed continuously using an Embrace wristband device from baseline to the end of the study. Primary points of interest include baseline (T0), after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3).
Heart Rate/Heart Rate Variability will be assessed continuously for the duration of the 2.5 hour session with sessions scheduled approximately one week apart
Blood Pressure
Blood Pressure will be assessed at baseline (T0), \~40 minutes after ingesting placebo or CBG (T1), after the stress test (T2), and after the memory tests (T3). Change scores from baseline to each time point will be examined.
Blood Pressure will be obtained multiple times throughout the 2.5 hour session for each session with sessions scheduled approximately one week apart
Pain Tolerance
Pain tolerance will be assessed by computing the duration of time they keep their hand in the cold pressor on each of the three cold pressor trials.
Pain tolerance will be assessed within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Verbal Memory
Participants will complete the California Verbal Learning Test
Participants will complete this test within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Short-Term/Working Memory
Participants will complete the Digit Span Forwards and Digit Span Backwards Tests
Participants will complete this test within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
False Memory
Participants will complete the Deese-Roediger-McDermott paradigm.
Participants will complete this test within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Secondary Outcomes (3)
Impairment
Participants will complete the DRUID app within the 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Subjective Drug Effects
Subjective drug effect ratings will occur within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Side Effects
Side effect ratings will occur within a 2.5 hour time frame for each session with sessions scheduled approximately one week apart
Study Arms (2)
Placebo Arm
PLACEBO COMPARATORParticipants in this arm will receive a placebo
CBG Arm
EXPERIMENTALParticipants in this arm will receive CBG
Interventions
Eligibility Criteria
You may qualify if:
- + years of age Fluent in English
You may not qualify if:
- Illiterate Serious psychiatric disorders (i.e., psychotic disorders, bipolar disorders) Intellectual disability Chronic neurological disorders (e.g., head injuries, brain tumors, Parkinson's disease) Diabetes Low blood pressure Pregnant or breastfeeding Recent illicit drug use (past 2 months) - does not include cannabis Dietary restrictions preventing them from eating muffin, yogurt, milk/juice
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Washington State University - Pullman Campus
Pullman, Washington, 99163, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- The research assistants who administer the protocol will be masked.
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
October 6, 2024
First Posted
October 15, 2024
Study Start
October 28, 2024
Primary Completion (Estimated)
October 31, 2026
Study Completion (Estimated)
October 31, 2026
Last Updated
December 24, 2024
Record last verified: 2024-12
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Deidentified data will be retained indefinitely
- Access Criteria
- Researchers wanting to conduct secondary data analysis following my own publication
De-identified data will be shared upon request and after publication.