Relative Bioavailability of Two Orally Administered CBD Formulations in Healthy Male Adults

Last updated: March 25, 2025
Sponsor: University of Saskatchewan
Overall Status: Active - Recruiting

Phase

1

Condition

N/A

Treatment

Cannabidiol

Clinical Study ID

NCT06574100
NFL-CBD-02
Bio-4317
286992
  • Ages 18-35
  • Male
  • Accepts Healthy Volunteers

Study Summary

This project is aimed at understanding whether a new fast-dissolving cheek-administered cannabidiol strip will be absorbed better into the body than cannabidiol powder. The results of this study will help guide dosage formulation choices as well as dosing regimens in NFL athletes for concussion management.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  1. Age 18 - 35 years old

  2. Clinical labs within the stated normal range of the Royal University Hospital TestCentre, or values outside the stated normal range that are not of clinicalsignificance as determined by the qualified investigator.

  3. No clinically significant disease on medical history or clinically significantfindings on physical examination including vital signs as determined by thequalified investigator.

  4. Ability to stay in the clinic trial unit for 13 hours on the day of each single oraldose.

  5. Ability to return for blood draws in the subsequent days.

Exclusion

Exclusion Criteria:

  1. History or presence of significant gastrointestinal, liver or kidney disease or anyother condition known to interfere with drug pharmacokinetics includingbioavailability or increase risk of adverse effects.

  2. History or presence of serious cardiovascular disease, such as ischaemic heartdisease, arrhythmias, poorly controlled hypertension or severe heart failure

  3. Males whose partners are trying to conceive (i.e. male subjects intending to start afamily during the study period)

  4. Lack of medically acceptable contraception by participants whose female partnershave childbearing potential for the duration of the study.

  5. Personal or family history of schizophrenia or any other psychotic disorder

  6. Current or past drug or alcohol dependence or abuse

  7. Use of Cannabis-based therapy within 2 months (Participants who have previously useda Cannabis-based therapy may be included if they have a 2-month period without useof Cannabis-based therapy prior to enrolment in the study)

  8. Use of recreational Cannabis within 2 months (Participants who have previously usedrecreational Cannabis may be included if they have a 2-month period without use ofrecreational Cannabis prior to enrolment in the study)

  9. Use of psychotropic medications with serotonergic activity (e.g. Selective SerotoninReuptake Inhibitors, Tricyclic Antidepressants, Atypical Neuroleptics) within oneweek

  10. Use of narcotic medications (e.g. Codeine, Morphine, Oxycontin) within one week

  11. Use of any other medication known to interact with medicinal Cannabis within oneweek.

  12. Allergy or known intolerance to any of the compounds within the study preparation.

  13. Resting heart rate HR < 50 bpm or > 100 bpm or seated blood pressure < 100/60 orhigher than 140/90

  14. Inability of study participants to attend and complete all study visits

  15. Bleeding disorder

  16. Known low hematocrit

Study Design

Total Participants: 20
Treatment Group(s): 1
Primary Treatment: Cannabidiol
Phase: 1
Study Start date:
October 26, 2024
Estimated Completion Date:
November 30, 2025

Study Description

Cannabis formulations are typically administered by the oral route of administration. This route represents the most common administration route for most pharmaceuticals due to the ease of administration and convenience. Inhalational products are not acceptable for the sport's athlete population due to potential damage to lung tissues. Topical products do not have adequate bioavailability to meet our therapeutic objectives. Our PK studies, then, need to employ the same dosage form and route of administration we expect to use in future clinical efficacy trials.

Given the low bioavailability expected with CBD oral formulations, we wish to assess two different formulations and the relative extent of CBD absorption. Our future planned CBD intervention studies in athletes will require use of larger doses of CBD. The formulation with the larger bioavailability will help to reduce the overall size of the dose utilized and therefore reduce the amount of product exposure in our clinical intervention studies. This will increase the likelihood that a Cannabis company can supply the necessary amount of product and reduce the overall cost associated with the studies. Generally speaking, based on current literature published around CBD administration for therapeutic application, higher doses of CBD (i.e., 50mg/kg/d) were found to correlate to more positive outcomes than lower doses (i.e., 1mg/kg/d). Assuming an average weight of 70 kg, a 1000 mg dose would be around 14.29 mg/kg, and a 3000 mg dose around 42.86 mg/kg. This will allow us to investigate the pharmacokinetics of CBD on both ends of the hypothetical efficacy trend. Studies have examined single orally administered doses up to 6000 mg with no serious adverse effects reported.

Connect with a study center

  • University of Saskatchewan

    Saskatoon, Saskatchewan S7N 5E5
    Canada

    Active - Recruiting

Not the study for you?

Let us help you find the best match. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.