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Can a cementless hip stem hold up in asian patients?

NCT ID NCT07828080

Disease control Sponsor: Seoul National University Bundang Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 18, 2026 · Last updated Sep 18, 2026

Summary

Researchers at a Korean hospital are following 210 adults who receive a cementless total hip replacement using the collarless Actis femoral stem. The study focuses on Asian patients, who tend to be younger at surgery and more often need the operation because of lost blood supply to the hip bone. Participants attend routine checkups for five years, and the team records complications such as dislocation, infection, loosening, or fracture around the implant.

What this could mean

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

Active substance
A collarless Actis femoral stem used in cementless total hip replacement
What this could lead to
If the stem holds up well, doctors could have clearer guidance on using it in Asian patients, who often have hip replacement at younger ages and for different reasons than Western patients.
What could go wrong
This is an observational study, not a randomized trial, so it cannot prove the stem causes good outcomes. Results from one hospital may not apply elsewhere, and some implants may loosen, dislocate, or need revision surgery within five years.

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 210 people

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

Started

Jun 2025

Expected to finish

Dec 2031

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 years and older

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: * Age 18 years or older * Scheduled to undergo primary total hip arthroplasty for one of the following: osteoarthritis of the hip, developmental dysplasia of the hip, rheumatoid arthritis, non-rheumatoid inflammatory arthritis, post-traumatic arthritis, osteonecrosis of the femoral head, or displaced femoral neck fracture * Willing and able to provide written informed consent Exclusion Criteria: * Age under 18 years * Total hip arthroplasty performed with a femoral stem other than the collarless Actis stem * Severe medical comorbidity precluding participation * Unwilling to participate in the study

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Conditions

The condition(s) this trial relates to.

arthritic joint disease avascular necrosis developmental dysplasia of the hip familial avascular necrosis of femoral head femoral neck fracture Hip Dislocation osteoarthritis, hip rheumatoid arthritis

As listed by the trial registrant

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

Arthritis rheumatoid Arthritis, post-traumatic Developmental dysplasia of hip Femoral neck fractures Femur head necrosis Osteoarthritis, hip

How to take part

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  1. The places running it

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  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

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Contacts and locations

Locations

  • Seoul National University Bundang Hospital

    RECRUITING

    Seongnam-si, Gyeonggi-do, 13620, South Korea

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