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New thumb implant could speed recovery from arthritis surgery

NCT ID NCT06078189

Symptom relief Sponsor: Clinique Bizet Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 11, 2026 · Updated 2 times

Summary

This study compares two surgical treatments for rhizarthrosis, a type of arthritis at the base of the thumb. One group gets a new prosthesis (HORUS implant), the other gets the standard trapezectomy. Researchers will measure hand function and pain in 50 patients over the short term to see which approach leads to faster recovery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
HORUS trapezium-metacarpal prosthesis (a device)
What this could lead to
If the prosthesis works better, it could offer faster recovery and less pain than the standard surgery for thumb arthritis.
What could go wrong
This is a small, early-stage trial with only 50 people, so results may not apply to everyone. The new device could have complications or not improve outcomes.

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

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2023

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

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

Patients with symptomatic disabling osteoarthritis in failure of medical treatment

Ages

45 to 85 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Age \>45 years 2. Symptomatic trapezius-metacarpal osteoarthritis after failure of medical treatment ( night orthosis 3 months + failure of 2 infiltrations/year) 3. Patient who has given his/her consent to participate in the study after being informed by the surgeon, 4. Patient living in France and able to answer the survey alone. 5. Subject affiliated to a social security system or beneficiary of such a system 6. No participation in any other clinical study Exclusion Criteria: 1. Minor patient 2. Trapezium height \< 8 mm 3. Major subject protected by law, under curatorship or guardianship 4. Known allergy to the materials of the medical device 5. Local infection 6. Local skin necrosis or unhealed wound 7. Pregnant or nursing women

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Conditions

The condition(s) this trial relates to.

osteoarthritis, hand

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Rhizarthrosis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Clinique BIZET

    RECRUITING

    Paris, 75116, France

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