Ear cartilage to the rescue? a tiny biopsy could rebuild knees
NCT ID NCT07755579
First seen Aug 10, 2026 · Last updated Aug 11, 2026 · Updated 1 time
Summary
This trial is testing whether a single injection of micrografts made from a patient's own ear cartilage can improve symptoms and knee function in adults with moderate knee osteoarthritis. The micrografts are prepared from a small ear cartilage sample using a special device, without lab culture. Researchers will track changes in knee pain, stiffness, and function over 12 months, and use MRI scans to see if cartilage thickness improves.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Autologous ear cartilage micrografting (Mytocel MSK) using Rigenera Technology
- What this could lead to
- If successful, this could offer a minimally invasive, one-time injection to ease knee osteoarthritis pain and potentially improve cartilage condition, delaying or avoiding more invasive surgery.
- What could go wrong
- This is a small, early-stage trial, so results may not be conclusive or generalizable. The procedure involves a biopsy and injection, which carry risks like infection or pain, and the micrografts may not effectively regenerate cartilage.
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
-
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
-
33 people
The number who actually took part.
- Started
-
May 2023
- Expected to finish
-
Dec 2027
An estimate. End dates often move.
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 75 years
- Sex
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Anyone
- Healthy volunteers
-
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: * Diagnosed knee OA L-K grade II-III * Symptomatic knee OA (with pain) * Reduced mobility Exclusion Criteria: * Knee OA L-K grade IV * Systemic Joint Disease (e.g. rheumatoid arthritis) * Active autoimmune disease * Active Oncologic process * If other orthobiologic treatments administered in the last 3 months
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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.
Contacts and locations
Locations
-
Semmelweis University
Budapest, 1085, Hungary
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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