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The goal of this observational study is to provide exploratory research into the in vivo physiological and psychological effects, if any, of cannabigerol (CBG) in healthy human adults age 21 or over.
The main questions it aims to answer are:
Over the course of the 12-week study, participants will:
BACKGROUND AND CONTEXT
The Cannabis plant has gained significant, and increasing, interest in the medical community due to the therapeutic potential of substances such as Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD). However, there are hundreds of different phytocannabinoids, terpenes, and flavonoids present in Cannabis plants, generating complex interactions in the human body. Cannabigerol (CBG) is one phytocannabinoid that has recently garnered a groundswell of media and commercial interest, although scientific literature on CBG is severely lacking compared with published research on Δ9-THC and CBD. Current studies suggest that CBG appears to have characteristics for affinity and activity somewhere between CBD and Δ9-THC, with additional unique interactions with 5-hydroxytryptamine (5-HT1A) receptors and α-2 adrenoceptors. Based on published research, there may be therapeutic potential for CBG in the treatment of neuroinflammatory disorders, inflammatory bowel disease, bacterial infections (such as MRSA), prostate cancer, and dental plaque. Many of these studies, however, indicate a vital need for additional research on the pharmacological effects of human CBG consumption, especially given the increase in its unregulated commercial use. This study will focus on the clinical application of CBG for healthy adults, current knowledge of its possible therapeutic utility, and its potential toxicological hazards.
PROBLEM STATEMENT
Cannabigerol is currently available for purchase in a variety of products and, as with cannabidiol (CBD) before it, many claims are being made about its benefits. Unlike CBD, however, little in-depth research has been performed on this intriguing phytocannabinoid, and much of what is known warrants further investigation to identify potential areas of therapeutic uses and hazards.
RESEARCH QUESTIONS
What effect, if any, does daily oral consumption of 50mg of full spectrum CBG have on the mental, physical, and emotional wellbeing of healthy individuals, as measured by self-report Medical Symptom Questionnaire and 36-Item Short Form Health Survey scores? Is CBG effective at reducing inflammation in the body, as measured by HSCRP, ESR, and PSA inflammatory markers? Do age, gender, weight, or state of body inflammation have an effect on the perceived efficacy of CBG? What adverse effects, if any, are associated with CBG use?
OBJECTIVES
The long-term goal is to provide exploratory research into the in vivo physiological and psychological effects, if any, of cannabigerol in humans. The objective of the current study is to determine whether clinically applied CBG in 100 healthy adults 21 or over in the United States has an effect on inflammatory markers in the body and/or self-reported physical, mental, and emotional wellbeing. The study has the following sub-objectives:
The result of this study will be valuable to industry practitioners as well as patient populations in developing a clear pharmacological picture of the efficacy and risks of full spectrum CBG consumption.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 50mg CBG Capsule | Experimental | 50mg cannabigerol (CBG) oil capsule taken daily for 8 weeks. Study surveys and bloodwork completed for 12 weeks total, including 8 weeks of CBG treatment and subsequent 4-week washout period |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Cannabigerol | Other | Hemp-derived full spectrum cannabigerol oil carried in an organic coconut (MCT) oil within hydroxypropyl methylcellulose capsules. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline Medical Symptom Questionnaire (MSQ) Score at 8 weeks | Change from baseline scores as measured by the Medical Symptom Questionnaire after 8 weeks. A total score of 20 or less is not clinically significant, 20 to 49 indicates mild toxicity, 50 to 99 indicates moderate toxicity, and 100 and above indicates severe toxicity. | 8 weeks |
| Change from Baseline RAND 36-Item Short Form Survey (SF-36) Scores at 8 weeks | Change from baseline scores as measured by the RAND 36-Item Short Form Survey after 8 weeks. Scores range from 0-100 for the 8 scales included (physical functioning, role limitations due to physical health, role limitations due to emotional problems, energy/fatigue, emotional well-being, social functioning, pain, and general health), with higher scores representing a more favorable health state. | 8 weeks |
| Change from Baseline High-Sensitivity C-reactive Protein (hsCRP) at 8 weeks | Blood concentration, measured in mg/L | 8 weeks |
| Change from Baseline Erythrocyte Sedimentation Rate (ESR) at 8 weeks | Blood concentration, measured in mm/hour | 8 weeks |
| Change from Baseline Prostate-Specific Antigen (PSA) Score at 8 weeks [Male Subjects] | Blood concentration, measured in ng/mL | 8 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Cory Rice, D.O. | Modern Medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institute for Hormonal Balance | Arlington | Texas | 76016 | United States | ||
| NP Care Clinic |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 33168643 | Background | Nachnani R, Raup-Konsavage WM, Vrana KE. The Pharmacological Case for Cannabigerol. J Pharmacol Exp Ther. 2021 Feb;376(2):204-212. doi: 10.1124/jpet.120.000340. Epub 2020 Nov 9. | |
| 29977202 | Background | Navarro G, Varani K, Reyes-Resina I, Sanchez de Medina V, Rivas-Santisteban R, Sanchez-Carnerero Callado C, Vincenzi F, Casano S, Ferreiro-Vera C, Canela EI, Borea PA, Nadal X, Franco R. Cannabigerol Action at Cannabinoid CB1 and CB2 Receptors and at CB1-CB2 Heteroreceptor Complexes. Front Pharmacol. 2018 Jun 21;9:632. doi: 10.3389/fphar.2018.00632. eCollection 2018. |
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All IPD that underlie results in a publication, shared upon request.
Starting 6 months after publication.
IPD and additional supporting information shared upon request.
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| ID | Term |
|---|---|
| D002189 | Marijuana Abuse |
| ID | Term |
|---|---|
| D019966 | Substance-Related Disorders |
| D064419 | Chemically-Induced Disorders |
| D001523 | Mental Disorders |
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| ID | Term |
|---|---|
| C037036 | cannabigerol |
| D002125 | Calcium Gluconate |
| ID | Term |
|---|---|
| D005942 | Gluconates |
| D013400 | Sugar Acids |
| D000144 | Acids, Acyclic |
| D002264 | Carboxylic Acids |
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|
| Denton |
| Texas |
| 76201 |
| United States |
| Infectious Disease Specialists | Edinburg | Texas | 78539 | United States |
| Modern Medicine | Forney | Texas | 75126 | United States |
| Melville Medicine | Southlake | Texas | 76092 | United States |
| Java Med | Ceiba | Puerto Rico | 00735 | Puerto Rico |
| 21175579 | Background | De Petrocellis L, Ligresti A, Moriello AS, Allara M, Bisogno T, Petrosino S, Stott CG, Di Marzo V. Effects of cannabinoids and cannabinoid-enriched Cannabis extracts on TRP channels and endocannabinoid metabolic enzymes. Br J Pharmacol. 2011 Aug;163(7):1479-94. doi: 10.1111/j.1476-5381.2010.01166.x. |
| 32886342 | Background | Echeverry C, Prunell G, Narbondo C, de Medina VS, Nadal X, Reyes-Parada M, Scorza C. A Comparative In Vitro Study of the Neuroprotective Effect Induced by Cannabidiol, Cannabigerol, and Their Respective Acid Forms: Relevance of the 5-HT1A Receptors. Neurotox Res. 2021 Apr;39(2):335-348. doi: 10.1007/s12640-020-00277-y. Epub 2020 Sep 4. |
| 32061773 | Background | Fellous T, De Maio F, Kalkan H, Carannante B, Boccella S, Petrosino S, Maione S, Di Marzo V, Iannotti FA. Phytocannabinoids promote viability and functional adipogenesis of bone marrow-derived mesenchymal stem cells through different molecular targets. Biochem Pharmacol. 2020 May;175:113859. doi: 10.1016/j.bcp.2020.113859. Epub 2020 Feb 14. |
| 33162765 | Background | Crocq MA. History of cannabis and the endocannabinoid system . Dialogues Clin Neurosci. 2020 Sep;22(3):223-228. doi: 10.31887/DCNS.2020.22.3/mcrocq. |
| 34569849 | Background | Russo EB, Cuttler C, Cooper ZD, Stueber A, Whiteley VL, Sexton M. Survey of Patients Employing Cannabigerol-Predominant Cannabis Preparations: Perceived Medical Effects, Adverse Events, and Withdrawal Symptoms. Cannabis Cannabinoid Res. 2022 Oct;7(5):706-716. doi: 10.1089/can.2021.0058. Epub 2021 Sep 27. |
| D009930 |
| Organic Chemicals |
| D006880 | Hydroxy Acids |
| D002241 | Carbohydrates |