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Hip OsteoarthritisNCT04326010

Prospective Clinical Follow-up of the Echo Bi-Metric Microplasty Stem for Total Hip Arthroplasty

An observational study of Hip Osteoarthritis, run by Zimmer Biomet at 6 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary objective of this study is to characterize survivorship of the Echo Bi-Metric Microplasty stem in unilateral or bilateral primary total hip arthroplasty at 5 years postoperative. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Hip Osteoarthritis
What is being tested?
Surgery
Type of treatment
Medical device
How many people
206 participants
Where
6 sitesUnited States
Study dates
20 Feb 2017to 4 Dec 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Adult, Older adult

Study population: The study population will comprise a cohort of a minimum of 200, and no more than 225, hips enrolled across up to 10 centers from subjects who require primary total hip arthroplasty. Subjects must be willing and able to attend required follow-up appointments. Candidates who express interest in study participation will undergo an informed consent procedure, be required to sign an IRB-approved informed consent with required HIPAA authorization1, and eligibility will be determined based upon the inclusion/exclusion criteria.

Who may be able to join

  • Subjects are eligible for this trial if they satisfy all of the following criteria:
  • Patient is 18 to 65 years of age, inclusive
  • Patient is skeletally mature
  • Patient qualifies for primary unilateral or bilateral total hip arthroplasty based on physical exam and medical history including at least one of the following:
  • Osteoarthritis
  • Avascular necrosis
Show all 12Show fewer
  • Rheumatoid arthritis
  • Correction of functional deformity
  • Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques
  • Patient has no history of previous total hip arthroplasty or arthrodesis of the affected hip joint(s)
  • Patient is willing and able to complete scheduled follow-up evaluations as described in the Informed Consent
  • Patient, or the patient's legally authorized representative, has participated in the Informed Consent process and is willing and able to sign an IRB- approved informed consent

Who cannot join

  • Subjects will be excluded from this trial if they satisfy any of the following criteria as determined by the research staff or in the judgment of the treating physician:
  • Patient has a total prosthetic hip replacement device (including surface replacement arthroplasty, endoprosthesis, etc.) in the affected hip joint(s)
  • Patient is septic or has an active infection
  • Patient is uncooperative patient or is incapable of following directions
  • Patient is diagnosed with osteoporosis
  • Patient is diagnosed with a metabolic disorder which may impair bone formation
  • Patient is diagnosed with osteomalacia
  • Patient has distant foci of infections which may spread to the implant site

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

United States6 sites
  • Growth Ortho

    Austin, Texas, 78751

  • OrthoSports Associates

    Birmingham, Alabama, 35211

  • Tidewater Orthpaedics

    Hampton, Virginia, 23666

  • Southern Joint Replacement Institute

    Nashville, Tennessee, 37203

  • University of CA - San Diego

    San Diego, California, 92037

  • Jordan-young Institute

    Virginia Beach, Virginia, 23462

Other trials in United States

About this study

The primary objective of this study is to characterize survivorship of the Echo Bi-Metric Microplasty stem in unilateral or bilateral primary total hip arthroplasty at 5 years postoperative.

Read the detailed description

Primary objective

The primary objective of this study is to characterize survivorship of the Echo Bi-Metric Microplasty stem in unilateral or bilateral primary total hip arthroplasty at 5 years postoperative.

Secondary Objectives

Safety will be evaluated by monitoring the frequency and incidence of adverse events over time to 10 years postoperative.

Clinical, functional, radiographic, and quality of life outcomes will be assessed over time to 7 years postoperative. Clinical Outcomes will be measured using the Harris Hip Score and Physical Exam form. Radiographs will be reviewed to assess alignment, radiolucencies and other radiographic parameters. Health status and functional ability will be measured using the EQ-5D-3L and the UCLA Activity score.

Being tested
Surgery
Medical subject headings
Osteoarthritis, Hip

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SurgeryDevice

    THA surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Implant Survival

    The primary objective of this study is to characterize survivorship of the Echo Bi-Metric Microplasty stem in unilateral or bilateral primary total hip arthroplasty at 5 years postoperative.

    Measured: 5 years postoperatively / Life of Study

Secondary outcomes (5)
  1. Clinical Outcomes

    Clinical Outcomes will be measured using the Harris Hip Score and Physical Exam form.

    Measured: 7 Years Post-Operative.

  2. Functional Outcomes

    Functional ability will be measured using the EQ-5D-3L.

    Measured: 7 Years Post-Operative

  3. Radiographic Outcomes

    Standard AP and lateral Hip radiographics of the implanted hip device will be assess the positioning of the device as well as lucencies and other potential anomalies

    Measured: 7 Years Post-Operative

  4. Quality of Life Outcomes

    Will be measured by UCLA Activity Score

    Measured: 7 Years Post-Operative

  5. Safety Outcomes

    Will be evaluated by monitoring the frequency and incidence of adverse events over time of the study

    Measured: 10 Years Post-Operative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Mar 2020
  2. Study start20 Feb 2017
  3. Primary completion14 Jun 2024
  4. Study completion4 Dec 2024

Why it stopped: Data collected up to this point has provided sufficient follow-up and will allow for a reasonable estimate of the five-year survivorship rate for the Echo Bi-Metric Microplasty stem in primary total hip arthroplasty.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
206 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04326010
Sponsor's protocol ID
H.CR.I.AM.16.6
Status last verified
Jan 2025
First submitted
24 Jan 2020
Last updated
5 Feb 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Hip Osteoarthritis, run by Zimmer Biomet at 6 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 5 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Data collected up to this point has provided sufficient follow-up and will allow for a reasonable estimate of the five-year survivorship rate for the Echo Bi-Metric Microplasty stem in primary total hip arthroplasty.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Implant Survival (time frame: 5 years postoperatively / Life of Study). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Feb 2025.

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