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Vitamin E-Infused hip implants face off against ceramic in wear test

NCT ID NCT05175300

Disease control Sponsor: GCS Ramsay Santé pour l'Enseignement et la Recherche 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study compares two types of hip replacement materials in 100 adults aged 18 to 65 who need a total hip replacement. One group gets a ceramic-on-polyethylene implant where the polyethylene is infused with vitamin E to reduce wear. The other group gets a standard ceramic-on-ceramic implant. The main goal is to measure how much the implant wears down over five years, which could help younger, active patients keep their hip replacements working longer.

What this could mean

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

Active substance
Hip replacement device: either a ceramic-on-highly-cross-linked-polyethylene (with vitamin E) or a ceramic-on-ceramic prosthesis
What this could lead to
If successful, this could show that vitamin E-infused polyethylene lasts longer and causes less wear in hip replacements for younger patients, potentially reducing the need for repeat surgeries.
What could go wrong
This is a relatively small study (100 people) and only measures wear over 5 years, not long-term outcomes. The results may not apply to older or less active patients, and both devices are already in use, so no breakthrough is expected.

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

About 100 people

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

Started

Mar 2023

Expected to finish

Mar 2032

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.

Ages

18 to 65 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: * Patient aged 18 to 65 years, * Who have signed their consent to participate in the study, * For whom an indication for total hip arthroplasty has been given Exclusion Criteria: * History of hip surgery * Indication for a dual mobility prosthesis (obese patient, dynamic spino-pelvic anomaly) * Hip dysplasia * Inflammatory rheumatic disease or any other progressive concomitant condition that may impact the patient's vital or functional prognosis * Sequelae of neurological disease or stroke * Pregnant or breastfeeding women * Mental deficiency or any other reason that may hinder the understanding or the strict application of the protocol * Patient likely not to return for follow-up visits * Patient already included in another therapeutic study protocol * Patient under court protection, guardianship or curatorship.

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Conditions

The condition(s) this trial relates to.

arthropathy osteoarthritis, hip

As listed by the trial registrant

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

Hip arthropathy

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

  • Hôpital Privé Jean Mermoz

    RECRUITING

    Lyon, 69008, France

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