Recruiting
Phase 2

Cannabinoid Tablets

Sponsor:

Pure Green

Code:

NCT04992962

Conditions

Osteoarthritis, Knee

Eligibility Criteria

Sex: All

Age: 21+

Healthy Volunteers: Not accepted

Interventions

CBD/CBN

CBD/THC

Placebo

Study Details

Brief summary:

The purpose of the study is to evaluate the efficacy of PG-OA-10CN and PG-OA-5TH tablets as a better pain reliever in patients with moderate to severe chronic pain due to osteoarthritis of the knee than a placebo.

Conditions

Osteoarthritis, Knee

Study ID

NCT04992962

Start date

Jul 29, 2021

Status verified date

Jul, 2021

Completion date

Nov 14, 2021

Anticipated

Primary completion date

Oct 30, 2021

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 21+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Subject is at least 21 years of age;
2. Subject has a diagnosis of osteoarthritis of the knee as determined by the subject's primary care physician or related health care provider.
3. Subject reports an average NPRS score of ≥ 5 in the 7 days prior to enrollment.
4. If female, the subject is postmenopausal (> 1 year), surgically sterile (> 3 months), had a hysterectomy, or is currently using 2 effective forms of birth control.
5. Subject has not taken marijuana (cannabis) in any form, chemicals or extracts or foods or beverages or topical creams, lotions, gels, patches containing marijuana (cannabinoids, or and cannabis derivatives) including synthetic marijuana and/or CBD for at least 14 days prior to this study, and agrees to not take marijuana (cannabis) in any form, chemicals or extracts or foods or beverages or topical creams, lotions, gels, patches containing marijuana (cannabinoids, or and cannabis derivatives) including synthetic marijuana and/or CBD while participating in this study.
6. If subject is currently taking a prohibited medication, subject must be willing to and complete a washout of these medications during the screening period and prior to starting study treatment.
7. Subject has not taken any NSAIDs and/or acetaminophen for at least 2 days prior to starting study treatment.
8. Subject is willing to provide his/her written informed consent to participate in the study as stated in the informed consent document.
9. Subject is willing to use an electronic diary to enter trial information for 29 days.

Exclusion Criteria:

1. Subject is pregnant or lactating;
2. Subject has an allergy to cannabis, the Cannabaceae plant family (e.g., hemp, hops), palmitoylethanolamide, or terpenes;
3. Subject has a known allergy to active or inert ingredients of the investigational product;
4. Subject is taking a concomitant medication or treatment that would complicate use or interpretation of the study drug's effects (examples include: Cannabis or any cannabinoid products; Any drug or herbal product that influences the endocannabinoid system (ECS));
5. Subject is taking marijuana (cannabis) in any form, chemicals or extracts or foods or beverages or topical creams, lotions, gels, patches containing marijuana (cannabinoids, or and cannabis derivatives) including synthetic marijuana and/or CBD for at least 14 days prior to this study, and does not promise that they will not take marijuana (cannabis) in any form, chemicals or extracts or foods or beverages or topical creams, lotions, gels, patches containing marijuana (cannabinoids, or and cannabis derivatives) including synthetic marijuana and/or CBD while participating in this study;
6. Subject is currently being treated with antibiotics for sinus, throat, or lung infections;
7. Subject has shortness of breath associated with allergies;
8. Subject has uncontrolled asthma;
9. Subject has a fever and/or productive cough;
10. Subject has unstable angina, uncontrolled hypertension;
11. Subject currently or has a history of congestive heart failure;
12. Subject has any other unstable medical condition;
13. Subject has a personal or family history of schizophrenia;
14. Subject has a personal history or currently has suicidal ideation or attempted suicide;
15. Subject has a major neurological disorder, such as dementia, Parkinson's disease, cognitive impairment, epilepsy, history of traumatic brain injury/head injury, and seizures.
16. Subject has taken pharmaceutical pain medicine, including OTC pain medicine of any kind, or has taken a NSAID and/or acetaminophen within 2 days of starting study treatment.
17. Subject has taken a prohibited medication during the screening period and prior to starting study treatment or is unwilling to stop these medications.
18. Subject has an allergy to, or has an intolerance to, NSAIDs or acetaminophen.
19. Subject has taken any form of steroids, including a local steroid injection in the knee, within 1 month of starting study treatment.
20. Subject has received any invasive interventions or surgery of the knee.
21. Subject has a history of substance or alcohol abuse.
22. Subject has clinically significant illness, including cardiovascular disorders.
23. Subject has any condition in which the investigator believes will confound the data of the study or could put the subject at risk of harm.
24. Subject does not have access to a smart phone or does not know how to use a smart phone application.

Study Design

Enrollment

66 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: CBD/CBN

Participants will receive a 28-day supply of CBD/CBN sublingual tablets to be taken 3 times a day for 28 days.

experimental: CBD/THC

Participants will receive a 28-day supply of CBD/THC sublingual tablets to be taken 3 times a day for 28 days.

placebo comparator: Placebo

A placebo sublingual tablet to be taken three times a day for 28 days

Interventions

CBD/CBN

A water-soluble sublingual tablet containing 10 mg of CBD and 10 mg of CBN.

CBD/THC

A water-soluble sublingual tablet containing 10 mg of CBD and 5 mg of THC.

Placebo

An inactive compound.

Primary outcome measure

  • Pain as assessed by Numerical Pain Rating Scale (NPRS) [ Time Frame: 28 Days ]
  • Pain as assessed by the Knee Injury and Osteoarthritis Outcome Score (KOOS) [ Time Frame: 28 Days ]

Central Contacts and Locations

Central contacts

Locations

Pure Green Pharmaceuticals

Recruiting

West Bloomfield, Michigan, United States, 48323

Contacts

Principal Investigator:

Debra Kimless, M.D.

More Information

Sponsor

Pure Green

Last update posted

Aug 6, 2021

Last verified

Jul, 2021

Keywords

  • CBD
  • Cannabidiol
  • CBN
  • Cannabinol
  • THC
  • Osteoarthritis
  • Pain
  • Placebo

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Pure Green on 2021-08-06.