Heart drug gel might soothe heel pain in new trial
NCT ID NCT07480876
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study tests whether applying a nitroglycerin gel (glyceryl trinitrate) to the heel using ultrasound (phonophoresis) can reduce pain and thickening of the plantar fascia. Eighty adults with chronic plantar fasciitis will receive either the gel plus exercises or exercises alone. The goal is to see if the gel helps more than standard care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- glyceryl trinitrate gel
- What this could lead to
- If it works, this could offer a new non-surgical option to ease pain and improve function for people with stubborn plantar fasciitis.
- What could go wrong
- This is a small, early-stage trial with only 80 participants, so results may not apply to everyone. The gel can cause headaches or skin irritation, and the benefit over standard care is unproven.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 44 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age between 18-44 years . * Patients BMI 18.5 to 24.9 kg / m2. * The diagnosis of PF appear clinically according to the history and physical - examination findings of point tenderness at or near the medial calcaneal insertion of the plantar fascia . * Diagnosis of plantar fasciitis, with plantar fascia of more than 4 mm thickness as evaluated by ultrasonography. * Painful symptoms lasting three months or more . Exclusion Criteria: * Diabetes mellitus, peripheral neuropathy, vasculitis and vasculopathy. * Any pathology in ankle/foot (instability, arthritis, malignancy, acute infection, and skin disorders) . * Pregnancy or lactation, coronary artery disease, hypertension, renal diseases and anemia . * Atrophy/ scar or skin ulcers at the site of intervention. * Patients with allergy to nitrates. * Heart pacemaker use . * Anticoagulant use and absence of coagulation disease.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Cairo university
Cairo, Cairo Governorate, 11311, Egypt
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