ClinicalTrials.gg
Not yet recruitingNCT07776405Updated Sep 3, 2026

A Double-Blinded Study on Rapid and Sustained Pain Relief Topical Cannabidiol for Plantar Fasciitis

A Phase 2 interventional study of transdermal CBD cream (Tolcylen®, Marlinz Pharma) and Matched Placebos in Plantar Fasciitis, sponsored by University of Florida. Not yet recruiting at 1 site in United States. Open to participants aged 18 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-03.

Sponsored by University of Florida · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 45 studies in Fasciitis, Plantar with a site in United States — 6 open to participants now, 6 under way, none of them phase 3. Fasciitis, Plantar · United States.

Planned enrollment
23rd of 44
50 · median 55
Started
2026
with 1 other
Phase 2
7 of 45
2 open now
Registered
45th of 45
by date
Lead sponsor
2 of 45
University of Florida

Among the 45 studies in Fasciitis, Plantar with a site in United States, this one is the 23rd largest by planned enrollment of the 44 interventional ones that give a count, is one of 2 that started in 2026, is one of 7 in phase 2, and was the 45th registered.

Fasciitis, Plantar

223 studies on the registry are indexed under Fasciitis, Plantar; 58 are open to participants now.

This study's planned enrollment of 50 is below the median of 56 across 194 interventional studies indexed under Fasciitis, Plantar.

Browse Fasciitis, Plantar studies →

Open to participants now

6 of the 45 studies in Fasciitis, Plantar with a site in United States are open now, in 1 country. Each count lists the studies.

All 6 open studies →

Where they have run

Who these studies take

Of the 29 Fasciitis, Plantar studies recruiting now, 5 (17%) set no upper age limit and 21 (72%) stop at 75 or younger; 0 take children under 18; 4 take healthy volunteers.

This study: 18 Years to 85 Years · all sexes · healthy volunteers too.

The full table on the hub →
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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 45 studies in Fasciitis, Plantar with a site in United States, or all of them as a file.
02

Study summary

This prospective, double-blinded, placebo-controlled study evaluates the efficacy of a 6000 mg transdermal CBD cream in adults with plantar fasciitis. Fifty participants will apply either CBD or placebo once daily for one month.

Read the detailed description

Plantar fasciitis is one of the most common causes of plantar heel pain, affecting millions of adults annually and accounting for a large proportion of musculoskeletal complaints seen in orthopaedic and sports medicine clinics. The condition is typically caused by repetitive microtrauma and inflammation at the plantar fascia's insertion on the calcaneus, leading to chronic pain, functional impairment, and limitations in daily activities. Despite its prevalence, effective and well-tolerated long-term treatments remain limited. Current management strategies, including stretching, orthotics, corticosteroid injections, and physical therapy, often provide only temporary relief or are associated with adverse effects from repeated use.

Cannabidiol (CBD), a non-psychoactive phytocannabinoid derived from hemp, has gained attention for its potential anti-inflammatory and analgesic properties. Preclinical and clinical studies have demonstrated CBD's ability to modulate inflammatory markers, reduce cytokine activity, and improve pain perception in various musculoskeletal and neuropathic conditions. These mechanisms make it a promising candidate for targeting inflammation-driven pain disorders such as plantar fasciitis. Although CBD has been studied for arthritis, tendon injuries, and generalized pain syndromes, no published trials have yet evaluated its efficacy in plantar fasciitis specifically.

A recent scoping review on topical CBD interventions confirmed this absence of evidence, highlighting a significant gap in the current literature regarding CBD's role in localized foot and heel pain. This lack of research underscores an unmet clinical need to assess whether transdermal delivery of CBD could provide measurable short- and long-term benefits in patients with plantar fasciitis.

This study aims to address that gap by evaluating a 6000 mg transdermal CBD cream (Tolcylen®, Marlinz Pharma) for both immediate and sustained pain reduction in adults with plantar fasciitis. By using a randomized, double-blinded, placebo-controlled design, we intend to determine whether topical CBD can offer a safe, non-invasive, and effective alternative or adjunct to current treatments. The results of this investigation may contribute to the emerging evidence on topical cannabinoids in orthopaedic pain management and inform future clinical practice guidelines.

03

Conditions studied

  • Plantar Fasciitis

Browse trials for

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients aged 18-85
  • Clinical diagnosis of plantar fasciitis by a qualified provider
  • Symptomatic for at least four weeks with plantar heel pain consistent with plantar fascia involvement
  • Baseline average pain score that meets eligibility threshold as defined in the protocol (?)
  • Willing to apply assigned cream once daily and attend needed visits (?)

Exclusion criteria

Exclusion Criteria:

  • Special populations and consent limitations. Pregnancy, breastfeeding, prisoners, inability to provide , or inability to complete study procedures
  • to topical products or CBD. History of allergy or sensitivity to cannabinoids, , or topical creams used in the study
  • Confounding dermatologic conditions at the application site. Open wounds, active infection, dermatitis, ulceration, or recent burns on the heel or midfoot
  • Recent or planned procedures that alter outcomes. injection, rich plasma, surgery, immobilization, or shockwave therapy within the protocol washout window
  • Concurrent therapies that confound pain outcomes. Routine use of systemic opioids, regular use of nonsteroidal anti-inflammatory drugs beyond rescue parameters, new analgesic starts during the study, or use of other topical analgesics on the study area
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Participants who receive a transdermal cannabidiol cream

    Dosing is three pumps per application which delivers approximately one point five milliliters of cream. Application is once daily to the most tender plantar fascia region for the entire study month

    Drug: transdermal CBD cream (Tolcylen®, Marlinz Pharma)

  • Placebo comparator
    Participants who receive a matched placebo

    Dosing is three pumps per application which delivers approximately one point five milliliters of cream. Application is once daily to the most tender plantar fascia region for the entire study month

    Drug: Matched Placebos

Interventions

  • The active product is the study CBD cream supplied by the manufacturer. Dosing is three pumps per application which delivers approximately one point five milliliters of cream. Application is once daily to the most tender plantar fascia region for the entire study month. The first dose will be taught and supervised in clinic using a glove. The cream will be massaged into the affected area for at least forty-five seconds. Skin must be clean and dry before application. No other topical agents may be placed on the study area during the study period.

  • DrugMatched Placebos

    The control group will receive a placebo cream identical in appearance, texture, scent, and packaging to the active product but containing no cannabidiol.

06

What researchers measure

Primary outcomes

  1. • Immediate pain relief, measured by change in numeric rating scale (0-10) from baseline to ten minutes after supervised application.

    Time frame: Daily for one month

  2. • One-month changes in average daily pain score compared to baseline.

    Time frame: Daily for one month

  3. • Global patient satisfaction

    measured using a five-point Likert scale assessing overall perceived improvement.

    Time frame: Daily for one month.

Secondary outcomes

  1. Duration of immediate pain relief following initial application

    Time frame: Daily for one month

  2. Adherence to protocol measured by patient logs and pump counts

    Time frame: Daily for one month

  3. Incidence of adverse effects

    Occurrence of negative side effects

    Time frame: Daily for one month

  4. Rescue analgesic use

    Time frame: Daily for one month

  5. Time to perceived improvement in symptoms

    Time frame: Daily for one month

  6. 6. PROMIS Pain Interference questionnaire

    Time frame: At enrollment and at end of once month

  7. 7. Foot Function Index questionnaires

    Time frame: At enrollment and at one month

  8. 8. Return to normal activity - the number of days required for participants to resume full standing or walking tolerance without pain

    Time frame: Once during one month

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Sep 2026; primary completion for Mar 2027, 6 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 17, 2026
First posted
Aug 20, 2026
StartEst.
Sep 1, 2026
Primary completionEst.
Mar 31, 2027
CompletionEst.
Mar 31, 2027
Last update
Sep 3, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 3, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07776405
Responsible party
Sponsor
First posted
Aug 20, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Mar 31, 2027 (estimated)
Completion
Mar 31, 2027 (estimated)
Last update
Sep 3, 2026

Study contacts

Antony Merendino, DPM
Contact
merena@ortho.ufl.edu
352-273-7044
Shea Herlihy, MS
Contact
herliso@ortho.ufl.edu
352-273-7361

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Cannabidiol

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