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New knee system tracked in 700-Patient study

NCT ID NCT03495232

Disease control Sponsor: Zimmer Biomet Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 follows 700 people receiving a Persona total knee replacement to see how well the artificial joint works over time. Researchers will measure pain, function, and quality of life using patient questionnaires, and track how long the implant lasts (up to 10 years). The goal is to understand the real-world performance and safety of this knee system.

What this could mean

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

Active substance
Zimmer Biomet Persona total knee system (artificial knee joint)
What this could lead to
If successful, this could confirm that the Persona knee system provides good pain relief and function for at least 10 years after surgery.
What could go wrong
This is an observational study, not a randomized trial comparing treatments. Results may not apply to all patients, and some may still experience complications or need revision surgery.

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 700 people

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

Started

Nov 2016

Expected to finish

Dec 2032

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.

Who is studied

Any patient planned for primary total knee arthroplasty (TKA) on orthopedic surgeons' waiting list may be asked and selected for the study.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Clinical and radiological osteoarthritis of the knee set to receive a primary unilateral total knee replacement Exclusion Criteria: * Patients who are unwilling or unable to give consent, or to comply with the follow-up program. * Patients that meet any contraindications listed in the Instruction for Use

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Conditions

The condition(s) this trial relates to.

arthropathy osteoarthritis osteoarthritis, knee

As listed by the trial registrant

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

Knee arthropathy

Contacts and locations

Locations

  • Copenhagen University Hospital, Hvidovre

    Copenhagen, Denmark

  • Institute Locomoteur de L'Ouest

    Saint-Grégoire, 35760, France

  • Ortopedic Clinic, Motala Specialist Care Capio AB

    Motala, Sweden

  • St Olavs Hospital

    Trondheim, Norway

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