Can donated stem cells ease arthritic joints?
NCT ID NCT05147675
First seen Oct 16, 2026 · Last updated Oct 16, 2026
Summary
Researchers are testing whether donated mesenchymal stem cells from umbilical cord or placental tissue are safe for people with osteoarthritis. Participants receive the cells both intravenously and directly into the affected joint. The trial tracks side effects and changes in joint pain and function scores. This early-stage study aims to see if the approach is safe and worth testing further.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cells
- What this could lead to
- If it works, donated stem cells could offer a new way to ease joint pain and stiffness in osteoarthritis, possibly slowing the damage.
- What could go wrong
- This is an early safety trial, so researchers mainly want to know if the cells cause harm. Any relief may be modest or temporary, and donated cells can trigger immune reactions.
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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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 92 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2022
- Expected to finish
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Dec 2027
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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Children (under 18), adults (18 to 64) and older adults (65 and over)
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diagnosis of Osteoarthritis * Understanding and willingness to sign a written informed consent document Exclusion Criteria: * Active infection * Active cancer * Chronic multisystem organ failure * Pregnancy * Clinically significant Abnormalities on pre-treatment laboratory evaluation * Medical condition that would (based on the opinion of the investigator) compromise patient's safety. * Continued drug abuse * Pre-menopausal women not using contraception * Previous organ transplant * Hypersensitivity to sulfur
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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
2 sites in 2 countries. 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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Prodromos Stem Cell Institute
RECRUITINGNaples, Florida, 34102, United States
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Prodromos Stem Cell Institute
RECRUITINGAthens, Greece
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