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Hallux ValgusPhase 2/3NCT04103814

Effect of Topical CBD Cream for Degenerative Hallux Disorders

A Phase 2/3 study testing magnesium-cannabidiolic acid cream in people with Hallux Valgus and Hallux Rigidus, run by Rush University Medical Center at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Hallux rigidus and hallux valgus are chronic forefoot conditions associated with pain, inflammation and functional impairment. Topical cannabidiol (CBD) cream has been shown to decrease inflammation, swelling, and pain response in arthritis models with minimal side effects, although the intervention has never been… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hallux Valgus, Hallux Rigidus
What is being tested?
magnesium-cannabidiolic acid cream
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
11 participants
Where
1 siteUnited States
Study dates
20 Oct 2019to 15 May 2023
Phase
Phase 2/3
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with a new diagnosis of hallux rigidus or hallux valgus
  • VAS pain score of 4 or higher
  • Age > 18 years
  • The patient provides informed consent

Who cannot join

  • A previous operative procedure to the first metatarsal for treatment of hallux valgus or hallux rigidus
  • VAS pain score at presentation less than 4
  • Concomitant hallux valgus and hallux rigidus on the ipsilateral side
  • Allergy to CBD, Cannabidiolic acid (CBDa) or any other ingredient contained in the topical cream
  • Pregnant patients

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Midwest Orthopaedics at Rush

    Chicago, Illinois, 60612

Other trials in United States

About this study

Official title: Effect of Topical CBD Oil on Pain Scores for Hallux Disorders: A Randomized Controlled Trial

Hallux rigidus and hallux valgus are chronic forefoot conditions associated with pain, inflammation and functional impairment. Topical cannabidiol (CBD) cream has been shown to decrease inflammation, swelling, and pain response in arthritis models with minimal side effects, although the intervention has never been studied in hallux valgus or hallux rigidus. The purpose of this study is to determine if topical CBD cream is an effective treatment for pain secondary to hallux rigidus and hallux valgus.

Read the detailed description

Hallux rigidus and hallux valgus are chronic forefoot conditions associated with pain, inflammation and functional impairment. While operative interventions exist, nonoperative modalities are the mainstay of treatment for most patients. Options include shoe wear modification, manual and physical therapy, intraarticular injection of corticosteroids or sodium hyaluronate, oral nonsteroidal anti-inflammatories, and foot orthoses. Oral anti-inflammatories are the most effective non-operative strategy, but unfortunately, are associated with major adverse side effects and are contraindicated in many patients. Topical cannabidiol (CBD) cream has been shown to decrease inflammation, swelling, and pain response in arthritis models with minimal side effects, although the intervention has never been studied in hallux valgus or hallux rigidus. This prospective randomized trial will compare topical CBD cream vs placebo cream for the treatment of pain secondary to hallux valgus and hallux rigidus. The primary outcome of interest in the change in pre and post-treatment Visual Analog System (VAS) pain scores. VAS pain score is a measurement on a continuum of values of pain intensity. The purpose of this study is to determine if topical CBD cream is an effective treatment for pain secondary to hallux rigidus and hallux valgus.

Being tested
magnesium-cannabidiolic acid cream, Placebo cream
Medical subject headings
Hallux Valgus, Hallux Rigidus

What participants receive

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

  • magnesium-cannabidiolic acid creamDrug

    Patients will receive Mg-CBDa (magnesium-cannabidiolic acid) cream for topical treatment of hallux rigidus or hallux valgus.

  • Placebo creamDrug

    Patients will receive placebo cream (neutral emollient containing no active agent) for topical treatment of hallux rigidus or hallux valgus. The ingredients of the placebo cream are as follows: Butyrospermum parkii (shea butter), caprylic/capric triglycerides medium-chain triglycerides (MCT oil), food coloring to match the CBD oil. There will be 345 grams of shea butter and 62ml MCT oil per batch.

Study groups in NCT04103814
Study groupRoleWhat they receive
Mg-CBDa creamActive comparatorSubjects in this group will receive the active Mg-CBDa (magnesium-cannabidiolic acid) for topical treatment of hallux valgus or hallux rigidus.
Receives: Drug: magnesium-cannabidiolic acid cream
Placebo creamPlacebo comparatorSubjects in this group will receive the inactive CBD cream for topical treatment of hallux valgus or hallux rigidus. The ingredients of the placebo cream are: butyrospermum parkii (shea butter), caprylic/capric triglycerides medium-chain triglycerides (MCT oil), and food coloring to match the CBD oil. There will be 345 grams of shea butter and 62ml MCT oil per batch.
Receives: Drug: Placebo cream

What is being measured

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

  1. Post-treatment VAS Score Averaged Daily Over 4 Weeks.

    Weekly visual analog system (VAS) pain scores will be measured daily for four weeks. The VAS pain score is a measure of pain severity. It is measured on a scale from 0 to 10, with 10 being the worst pain the patient has experienced. No patients completed full enrollment so no data was analyzed.

    Measured: 4 weeks

  2. Weekly Foot Function Index

    The foot function index (FFI) is a questionnaire that measures foot pain and disability. It is self-administered and consists of 23 items divided into 3 subscales (pain, disability, and activity limitation). The pain subcategory consists of 9 questions (scored out of 90) and is a measure of pain in different situations, such as walking with shoes versus barefoot. The disability subcategory consists of 9 questions (scored out of 90) and measures functional activities, such as difficulty walking upstairs. The activity limitation subcategory consists of 5 questions (scored out of 50) and measures limitations caused by the foot problem. All three subcategories are summed together to get a final number, with higher numbers indicating worse pain.

    Measured: 4 weeks

Timeline

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

  1. First posted25 Sep 2019
  2. Study start20 Oct 2019
  3. Primary completion15 May 2023
  4. Study completion15 May 2023

Why it stopped: Lack of resources to continue enrollment

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
Model description
Enrolled patients will receive either active Mg-CBDa (magnesium-cannabidiolic acid) cream or placebo cream (neutral emollient containing no active agent) for topical treatment of hallux rigidus or hallux valgus.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04103814
Sponsor's protocol ID
19052902
Status last verified
Sep 2024
First submitted
23 Sep 2019
Last updated
15 Oct 2024
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing magnesium-cannabidiolic acid cream in people with Hallux Valgus and Hallux Rigidus, run by Rush University Medical 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 4 inclusion and 5 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: stopped early, as of the sponsor's last update on 15 Oct 2024. 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?

Yes. Results are posted in the registry (first posted 15 Oct 2024). 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?

Post-treatment VAS Score Averaged Daily Over 4 Weeks. (time frame: 4 weeks). The study lists 2 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 15 Oct 2024.

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