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ArthralgiaPhase 2NCT04754399

Cannabidiol (CBD) for Treatment of Aromatase Inhibitor-Associated Arthralgias

A Phase 2 study testing Cannabidiol (CBD) in people with Arthralgia and Breast Cancer, run by University of Michigan Rogel Cancer Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Study of Cannabidol to examine the safety and efficacy of 15 weeks of CBD in postmenopausal women with aromatase inhibitor-associated musculoskeletal symptoms (AIMSS). Investigators are looking to see if patients with joint pain see improvement with the use of CBD. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Arthralgia, Breast Cancer
What is being tested?
Cannabidiol (CBD)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteUnited States
Study dates
16 Apr 2021to 10 Oct 2023
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Postmenopausal according to standard clinical criteria OR receiving concomitant LHRH agonist therapy.
  • Taking aromatase inhibitor therapy (anastrozole, exemestane, or letrozole) for adjuvant treatment of breast cancer or for chemoprevention for at least 3 weeks and no more than 2 years at the time of enrollment.
  • Planning to take the same AI therapy for at least 15 weeks.
  • New or worsening joint pain and/or myalgias since starting the AI therapy.
  • Completion of surgery (mastectomy or lumpectomy/partial mastectomy) for treatment of breast cancer at least 3 months prior to enrollment.
  • The complete list of inclusion criteria is provided in the protocol.

Who cannot join

  • Metastatic breast cancer.
  • Planned surgery during the 15-week study period.
  • Clinically significant laboratory abnormalities.
  • Use of cannabidiol, THC, or marijuana (oral, inhaled, or topical) within the 6 weeks prior to enrollment.
  • History of or currently has suicidal ideation or attempted suicide.
  • History of seizure other than febrile seizures in childhood.
  • The complete list of exclusion criteria is provided in the protocol.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Michigan Rogel Cancer Center

    Ann Arbor, Michigan, 48109

Other trials in United States

About this study

Official title: Phase 2 Trial of Cannabidiol (CBD) for Treatment of Aromatase Inhibitor-Associated Arthralgias

Study of Cannabidol to examine the safety and efficacy of 15 weeks of CBD in postmenopausal women with aromatase inhibitor-associated musculoskeletal symptoms (AIMSS). Investigators are looking to see if patients with joint pain see improvement with the use of CBD.

Being tested
Cannabidiol (CBD)
Keywords
Cannabidiol
Medical subject headings
Arthralgia, Breast Neoplasms

What participants receive

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

  • Cannabidiol (CBD)Drug

    Also called Epidiolex

    week 1: 25 mg twice daily, approximately 12 hours apart, with food

    week 2: 50 mg twice daily, approximately 12 hours apart, with food

    week 3: 75 mg twice daily, approximately 12 hours apart, with food

    week 4+: 100 mg twice daily, approximately 12 hours apart, with food

Study groups in NCT04754399
Study groupRoleWhat they receive
Cannabidiol (CBD)ExperimentalOral solution given 2x daily.
Receives: Drug: Cannabidiol (CBD)

What is being measured

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

  1. Absolute Change in Brief Pain Inventory (BPI) Worst Pain From Baseline to Week 15

    The BPI is a patient self-rating scale that assesses joint pain and stiffness on a scale of 0 (no pain) to 10 (pain as bad as you can imagine). For the purpose of this measure, absolute change for only one BPI item will be assessed, "joint pain and stiffness at its worst in the last week".

    Measured: Baseline, week 15

Secondary outcomes (5)
  1. Number of Patients With at Least a 2-point Reduction in BPI Worst Pain From Baseline to Week 15

    The BPI is a patient self-rating scale that assesses joint pain and stiffness on a scale of 0 (no pain) to 10 (pain as bad as you can imagine). For the purpose of this measure, change from baseline to week 15 for only one BPI item, "joint pain and stiffness at its worst in the last week", will be assessed.

    Measured: Baseline, week 15

  2. Number of Patients With at Least a 2-point Reduction in BPI Average Pain From Baseline to Week 15

    The BPI is a patient self-rating scale that assesses joint pain and stiffness on a scale of 0 (no pain) to 10 (pain as bad as you can imagine). For the purpose of this measure, change from baseline to week 15 for only one BPI item, "joint pain and stiffness on the average", will be assessed.

    Measured: Baseline, week 15

  3. Change in Symptoms From Baseline, as Measured by the PROMIS-29+2 Profile v2.1

    The Patient-Reported Outcomes Measurement Information System (PROMIS)-29+2 Profile v2.1 (PROPr) is a validated questionnaire to assess patient-reported symptoms over the past 7 days in 7 PROMIS domains on a scale of 1 (worst) to 5 (best). Raw scores for each domain are calculated and then converted to a T-score, with a mean of 50 and a standard deviation of 10. Higher T-scores represent more of the concept being measured: for fatigue, sleep disturbance, depression, and anxiety, higher scores represent worse symptoms; for physical functioning, ability to participate in social roles and activities, and cognitive function-abilities, higher scores mean better function.

    Measured: Baseline, week 15

  4. Number of Treatment Related Adverse Events

    Treatment related adverse events include those that are determined to be possibly, probably or definitely related to the study drug. Number of events will be reported by dose level and grade, per Common Terminology Criteria for Adverse Events (CTCAE) v.5.

    Measured: End of study (15 weeks)

  5. Number of Participants With Undetectable Levels of Estradiol

    The number of participants with undetectable levels of estradiol circulating in blood plasma will be reported at baseline and 15 weeks.

    Measured: Baseline and week 15

Timeline

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

  1. First posted15 Feb 2021
  2. Study start16 Apr 2021
  3. Primary completion10 Oct 2023
  4. Study completion10 Oct 2023

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
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04754399
Sponsor's protocol ID
UMCC 2020.041
Other IDs
HUM00182109
Status last verified
May 2025
First submitted
9 Feb 2021
Last updated
9 May 2025
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Fleege NMG, Miller EA, Kidwell KM, Zacharias ZR, Houtman J, Scheu K, Kemmer K, Boehnke KF, Henry NL. Pilot Study of Cannabidiol for Treatment of Aromatase Inhibitor-Associated Musculoskeletal Symptoms in Breast Cancer. Cancer Med. 2025 Aug;14(15):e71117. doi: 10.1002/cam4.71117.

    PubMed 40751295

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Cannabidiol (CBD) in people with Arthralgia and Breast Cancer, run by University of Michigan Rogel Cancer Center 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 7 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: finished, as of the sponsor's last update on 9 May 2025. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this 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.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 May 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Absolute Change in Brief Pain Inventory (BPI) Worst Pain From Baseline to Week 15 (time frame: Baseline, week 15). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04754399, which also lists 1 linked publication.

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 May 2025.

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