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Joint DiseaseTOPAZNCT02668211

Radiostereometric Analysis (RSA) of the PROFEMUR® Preserve Classic Femoral Components

A study testing PROFEMUR Preserve Classic Femoral Components in people with Joint Disease and Osteoarthritis, run by MicroPort Orthopedics Inc. at 1 site in Canada.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

MicroPort Orthopedics (MPO) is conducting this study to investigate the primary stability of its PROFEMUR® Preserve Femoral Components using radiostereometric analysis (RSA). RSA allows precise measurement of micromotion around orthopedic implants and hence, may estimate long-term fixation to bone. Read more about this study

Who is it for?
Ages 21 to 76 years
Conditions the study is for
Joint Disease, Osteoarthritis
What is being tested?
PROFEMUR Preserve Classic Femoral Components
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteCanada
Study dates
Nov 2016to Dec 2019
Phase
Interventional
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 21 to 76 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is a candidate for primary THA for osteoarthritis
  • Subject is able to undergo primary THA procedure
  • Subject is a candidate to be implanted with the specified combination of components
  • Subject is willing and able to complete required study visits and assessments
  • Subject is willing to sign the approved Informed Consent document

Who cannot join

  • Subject has any of the following contraindications at the time of the implantation:
  • Overt infection;
  • Distant foci of infections (which may cause hematogenous spread to the implant site);
  • Rapid disease progression as manifested by joint destruction or bone absorption apparent on roentgenogram;
  • Skeletally immature (less than 21 years of age at time of surgery);
  • Inadequate neuromuscular status (e.g., prior paralysis, fusion, and/or inadequate abductor strength), poor bone stock, poor skin coverage around the joint which would make the procedure unjustifiable;
Show all 18Show fewer
  • Subjects 76 years of age or older
  • Subjects with post-traumatic arthritis in the affected hip
  • Subjects with rheumatoid arthritis in the affected hip
  • Subjects with hip dysplasia in the affected hip
  • Subjects with prior arthroplasty of the affected hip
  • Subjects that are morbidly obese (BMI > 35)
  • Subjects that are immuno-suppressed
  • Subjects with known or tested-positive allergy to metals
  • Subjects currently enrolled in another clinical investigation which could affect the endpoints of this protocol
  • Subjects unwilling or unable to sign the Informed Consent document
  • Subjects with substance abuse issues
  • Subjects who are incarcerated or have pending incarceration

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Hopital Maisonneuve Rosemont

    Montreal, Quebec, H1T 2M4

Other trials in Canada

About this study

MicroPort Orthopedics (MPO) is conducting this study to investigate the primary stability of its PROFEMUR® Preserve Femoral Components using radiostereometric analysis (RSA). RSA allows precise measurement of micromotion around orthopedic implants and hence, may estimate long-term fixation to bone.

Being tested
PROFEMUR Preserve Classic Femoral Components
Keywords
osteoarthritis, radiostereometric analysis, correction of functional deformity, procedures, total hip arthroplasty, musculoskeletal diseases
Medical subject headings
Joint Diseases, Osteoarthritis, Musculoskeletal Diseases

What participants receive

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

  • PROFEMUR Preserve Classic Femoral ComponentsDevice

    Also called Total Hip Arthroplasty System

Study groups in NCT02668211
Study groupRoleWhat they receive
PROFEMUR Preserve RSAOtherSingle cohort of subjects prospectively implanted with PROFEMUR® Preserve Classic femoral components
Receives: Device: PROFEMUR Preserve Classic Femoral Components

What is being measured

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

  1. Assess the stability of the PROFEMUR® Preserve Classic stem with RSA to estimate its long-term performance.

    Assessment of the quantity of migration to determine if the total migration of the stem and cup at 2 years post¬operatively are less than 1.2 mm and 2.6mm, and also less than 0.4mm. Assessment of continuous migration to determine if continuous migration, defined as 0.2mm of motion between 1 and 2 years as measured with RSA exists in the stem and cup.

    Measured: 24 months

  2. Determine the migration patterns of the PROFEMUR® Preserve Classic stem with RSA

    Assessment of migration in each individual plane (x, y, and z), as measured in mm.

    Measured: 24 months

  3. Assess if migration pattern is greater than 0.2mm between 1 and 2 years

    To determine if the wear rate device is substantially less than the scientifically accepted threshold of 0.1 mm/year for osteolysis. The outcomes will be compared to data from the literature, which states that motion greater than 0.2mm between 1 and 2 years suggests an implant is at risk for early loosening.

    Measured: 24 months

Secondary outcomes (1)
  1. Patient functional outcomes (HOOS)

    The secondary objective is to determine if there is a significant difference in health status and functional outcomes (using the HOOS questionnaire) before and after total hip arthroplasty (THA) using the PROFEMUR® Preserve Femoral Components.

    Measured: 24 months

Timeline

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

  1. First posted29 Jan 2016 (estimated)
  2. Study startNov 2016
  3. Primary completionDec 2019 (estimated)
  4. Study completionDec 2019 (estimated)

Why it stopped: Not feasible - RSA machine not available. RSA images needed for study endpoints

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02668211
Sponsor's protocol ID
14LJH002
Acronym
TOPAZ
Status last verified
Dec 2016
First submitted
9 Nov 2015
Last updated
15 Dec 2016
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing PROFEMUR Preserve Classic Femoral Components in people with Joint Disease and Osteoarthritis, run by MicroPort Orthopedics Inc. at 1 site in Canada.

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 5 inclusion and 18 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: withdrawn, as of the sponsor's last update on 15 Dec 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. 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 withdrawn before enrolling participants, so there are no results.

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?

Assess the stability of the PROFEMUR® Preserve Classic stem with RSA to estimate its long-term performance. (time frame: 24 months). The study lists 3 primary outcomes in all. 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 15 Dec 2016.

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