Bioactive glass may help seal the ear after cholesteatoma surgery
NCT ID NCT05921643
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This trial tests whether a bioactive glass material can effectively fill the mastoid bone after surgery for cholesteatoma, a non-cancerous but destructive ear growth. Adults having their first cholesteatoma operation will receive the glass filler to stabilize the repair and prevent the growth from coming back. The study measures how well the mastoid fills in over six months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- bioactive glass (GlassBONE or Bonalive)
- What this could lead to
- If successful, this could offer a better way to prevent cholesteatoma from coming back after surgery, reducing the need for repeat operations.
- What could go wrong
- This is a small, early-stage study with only 70 participants, and the filler's long-term safety and effectiveness are not yet proven.
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.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2023
- Expected to finish
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Apr 2030
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.
Who is studied
Adult patients referred to the ENT surgery department of the Hospices Civils de Lyon with cholesteatoma that had never been operated on. All patients will benefit from surgical management for cholesteatoma initially in the operating room under general anesthesia. The surgical technique (closed technique) is the reference technique for the management of cholesteatoma in adults. It involves a cartilaginous removal to reconstruct the attical region. Then a filling material is used to fill the mastoid (GlassBONE™ or Bonalive™), and above all to stabilize the cartilaginous fragment to prevent a recurrence.
- Ages
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18 years and older
- 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: * Patients at least 18 years old * Patients with proven cholesteatoma * Patient requiring and agreeing to surgery with filling of the mastoid or tympanic epi (closed technique with filling) * Patient having a surgery with filling in first intention Exclusion Criteria: * Background: * Known outer, middle or inner ear malformation * Congenital cholesteatoma * Previously operated cholesteatoma * Cholesteatoma requiring an open technique or presenting with chronic non-cholesteatomatous otitis * Contraindications to the use of GlassBONE™ or Bonalive™ * Pregnant, parturient or nursing mothers * Persons deprived of their liberty by a judicial or administrative decision, persons subject to psychiatric care, adults subject to a measure of legal protection or unable to express themselves * Patient participating in interventional research excluding routine care research (old regulations) and category 2 research that does not interfere with the analysis of the primary endpoint * Patient objecting to the use of their data
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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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Hôpital Lyon Sud
RECRUITINGLyon, Pierre-Bénite, 69495, France