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Knee ArthritisPhase 2/3NCT05020028

Cannabidiol (CBD) in Pain Reduction for Knee Osteoarthritis

A Phase 2/3 study testing Cannabidiol (CBD) in people with Knee Arthritis, run by NYU Langone Health at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

The purpose of this study is to see if cannabidiol (CBD) orally dissolving tablets (ODTs) can lessen pain, improve function, and improve patient satisfaction in cases of knee osteoarthritis. CBD comes from the cannabis plant and is non-psychoactive (i.e. Read more about this study

Who is it for?
Ages 40 to 75 years
Conditions the study is for
Knee Arthritis
What is being tested?
Cannabidiol (CBD)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
100 participants
Where
1 siteUnited States
Study dates
22 Jun 2022to Sep 2027
Phase
Phase 2/3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients presenting with knee osteoarthritis (KL Grade II-III)
  • Knee pain for at least three months, occurring in at least half of the days in that period
  • VAS ≥ 4
  • Patients ages 40-75, inclusive
  • If female patients are pre-menopausal they must be currently practicing effective forms of two types of birth control, which are defined as those, alone or in combination, that result in a low failure rate (less than 1% per year) when used consistently and correctly
  • Male patients must be using an effective form of contraception

Who cannot join

  • Knee Injections within the last 3 months (cortisone, PRP, hyaluronic acid)
  • Legally incompetent or mentally impaired (e.g., minors, Alzheimer's subjects, dementia, etc.)
  • Younger than 40 years of age
  • Older than 75 years of age
  • Any patient considered a vulnerable subject: pregnant women or fetuses, children, cognitively impaired adults, prisoners
  • History of cannabis abuse or dependence
Show all 24Show fewer
  • History of coagulation abnormalities and thromboembolic disease or current abnormal coagulation test values
  • History of stroke or acute coronary syndromes within 3 months
  • Abnormal coagulation profile
  • Renal failure (serum creatinine > 250 μmol/L [2.83 mg/dL]) or liver cirrhosis
  • Patients that have been on opioid management for any reason just prior to the study
  • Patients with known inflammatory arthritis (such as rheumatoid arthritis, gout, pseudogout etc)
  • Patients with a large effusion
  • Patients with a BMI > 35
  • Patients meeting the DSM-V for major psychiatric illness, such as bipolar disorder
  • Patients diagnosed with major depression, psychosis, or substance abuse disorder
  • Patients with current or a history of suicidal ideation
  • Breastfeeding females
  • Abnormal LFTs
  • Patients with major neurological disorders, such as dementia, Parkinson's disease, cognitive impairment, epilepsy, history of traumatic brain/head injury, or seizures
  • Patients with moderate (Child-Pugh B) and severe hepatic impairment (Child-Pugh C).
  • Patients taking moderate or strong inhibitors of CYP3A4 and CYP2C19 (listed below) concomitantly will be considered for exclusion if determined to be clinically significant by the treating physicians
  • Patients taking strong CYP3A4 and CYP2C19 inducers (listed below) concomitantly will be considered for exclusion if determined to be clinically significant by the treating physicians
  • Patients taking substrates of UTG1A9, UTGB17, CYP2A1, CYP2B6, CYP2C8, CYP2C9 and CYP2C19 (listed below) concomitantly will be considered for exclusion if determined to be clinically significant by the treating physicians

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Michael J Alaia, MD contact

646-501-7223

michael.alaia@nyulangone.org

Layne Estes contact

Layne.estes@nyulangone.org

United States1 site, 1 recruiting
  • NYU Langone Health

    New York, New York, 10016

    Michael Alaia, MD

    Recruiting

Other trials in United States

About this study

Official title: The Use of Cannabidiol (CBD) in Pain Reduction for Knee Osteoarthritis. A Double-Blind, Randomized Control Study

The purpose of this study is to see if cannabidiol (CBD) orally dissolving tablets (ODTs) can lessen pain, improve function, and improve patient satisfaction in cases of knee osteoarthritis. CBD comes from the cannabis plant and is non-psychoactive (i.e. does not produce a 'high' or altered mental state) as compared to tetrahydrocannabinol (THC), another compound found in cannabis. Researchers are studying different forms of CBD for potential use in treating pain, inflammation, and illnesses.

Read the detailed description

This will be a multi-center, double-blinded, randomized, placebo-controlled study. The study is comparing pain, outcomes, and patient satisfaction in two cohorts: patients with knee OA undergoing physiotherapy/home exercises who receive CBD and a placebo group with PT/home exercise program. Patients will be asked on treatment Day 1, 2, 7, and 14, 28, 42, and 84 to rate their pain according to the VAS scale. Additionally, patient satisfaction and clinical outcomes will be measured.

Conditions
Knee Arthritis
Being tested
Cannabidiol (CBD), Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cannabidiol (CBD)Drug

    Also called Cannabidiol

    Patients will be dispensed enough 25mg cannabidiol (CBD) Orally Disintegrating Tablets (ODT) to take a standard dose of 50mg three times daily for 84 days.

  • PlaceboDrug

    25mg Placebo ODT looks like the cannabidiol (CBD) Orally Disintegrating Tablets (ODT), but contains no active ingredients.

Study groups in NCT05020028
Study groupRoleWhat they receive
CBD GroupExperimentalThe first cohort will take two 25mg cannabidiol (total dose: 50mg) Orally Disintegrating Tablets (CBD ODT) three times daily for a maximum dose of 150mg per day.
Receives: Drug: Cannabidiol (CBD)
Placebo GroupPlacebo comparatorCohort 2 will receive the same instructions, but with the placebo Orally Disintegrating Tablets (ODT) instead.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 1

  2. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 2

  3. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 7

  4. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 14

  5. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 28

  6. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 42

  7. VAS Pain Severity Score

    A Visual Analogue Scale (VAS) will be used to measure differences in pain between patients receiving CBD with knee OA undergoing physiotherapy compared to patients who do not receive CBD. Patients rate their pain on a scale ranging from 0 (no pain) to 10 (worst pain imaginable). Total scores range from 0-10; higher scores indicates greater pain intensity.

    Measured: Day 84

Secondary outcomes (12)
  1. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    KOOS is a knee-specific instrument, developed to assess patients' opinion about their knee and associated problems. The five patient-relevant subscales of KOOS are scored separately: Pain (9 items); Symptoms (7 items); ADL Function (17 items); Sport and Recreation Function (5 items); Quality of Life (4 items).

    Patients rank each item using a 5-piont Likert scale ranging from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores are calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems.

    Measured: Baseline

  2. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    KOOS is a knee-specific instrument, developed to assess patients' opinion about their knee and associated problems. The five patient-relevant subscales of KOOS are scored separately: Pain (9 items); Symptoms (7 items); ADL Function (17 items); Sport and Recreation Function (5 items); Quality of Life (4 items).

    Patients rank each item using a 5-piont Likert scale ranging from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores are calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems.

    Measured: Week 6

  3. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    KOOS is a knee-specific instrument, developed to assess patients' opinion about their knee and associated problems. The five patient-relevant subscales of KOOS are scored separately: Pain (9 items); Symptoms (7 items); ADL Function (17 items); Sport and Recreation Function (5 items); Quality of Life (4 items).

    Patients rank each item using a 5-piont Likert scale ranging from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores are calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems.

    Measured: Week 12

  4. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    KOOS is a knee-specific instrument, developed to assess patients' opinion about their knee and associated problems. The five patient-relevant subscales of KOOS are scored separately: Pain (9 items); Symptoms (7 items); ADL Function (17 items); Sport and Recreation Function (5 items); Quality of Life (4 items).

    Patients rank each item using a 5-piont Likert scale ranging from 0 (No Problems) to 4 (Extreme Problems) and each of the five scores are calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems.

    Measured: Week 60

  5. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 1

  6. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 2

  7. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 7

  8. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 14

  9. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 28

  10. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 42

  11. VAS Satisfaction with Pain Management Score

    A Visual Analogue Scale (VAS) will be used to measure patient satisfaction with pain management. Patients rate their satisfaction on a scale ranging from 0 (no satisfaction) to 10 (as satisfied as possible). Total scores range from 0-10; higher scores indicates greater satisfaction with pain management.

    Measured: Day 84

  12. Number of Patients Requiring Rescue Corticosteroid Use

    Measured: Up to Week 60

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Aug 2021
  2. Study start22 Jun 2022
  3. Primary completionSep 2027 (estimated)
  4. Study completionSep 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05020028
Sponsor's protocol ID
21-00334
Status last verified
Jun 2026
First submitted
13 Jul 2021
Last updated
9 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: The data will only be available to the researchers involved in this study.

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Cannabidiol (CBD) in people with Knee Arthritis, run by NYU Langone Health at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 9 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Michael J Alaia, MD (646-501-7223, michael.alaia@nyulangone.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

VAS Pain Severity Score (time frame: Day 1). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jun 2026.

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