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Arthroplasty, Replacement, KneeNCT01092312

Signature Personalised Patient Care System With the Vanguard Knee System Study

A study testing Vanguard Knee System with Signature Knee Guide and Vanguard Knee System with conventional Instruments in people with Arthroplasty, Replacement, Knee, run by Zimmer Biomet at 12 sites in 10 countries.

Terminated

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

Official record
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Trial summary

The purpose of this study is to determine whether the percentage cases which have ideal mechanical axial alignment using the Vanguard total Knee implant with the Signature cutting blocks is higher than those without the use of Signature when measured immediately post-operatively. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Arthroplasty, Replacement, Knee
What is being tested?
Vanguard Knee System with Signature Knee Guide and Vanguard Knee System with conventional Instruments
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
325 participants
Where
12 sitesin 10 countries
Study dates
Mar 2010to Sep 2016
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • painful and disabled knee joint resulting from osteoarthritis, rheumatoid arthritis, traumatic arthritis where one or more of the knee compartments are involved
  • correction of varus, valgus or posttraumatic deformity
  • correction or revision of unsuccessful osteotomy (wedge cut from bone to improve alignment), or arthrodesis (fusion)
  • need to obtain pain relief and improve function
  • ability and willingness to follow instructions, including control of weight and activity level.
  • a good nutritional state
  • must have reached full skeletal maturity
  • able and willing to undergo an MRI scan

Who cannot join

  • infection
  • sepsis
  • osteomyelitis
  • failure of a previous joint replacement

Trial locations and contacts

12 sites in 10 countries.

12 sites in 10 countries

Australia2 sites
  • The Queen Elizabeth Hospital

    Adelaide, South Australia, 5011

  • Logan Hospital

    Brisbane, Queensland, 4131

Other trials in Australia

Austria2 sites
  • General Hospital Kreuzschwestern

    Grieskirchen, Wels

  • The Orthopaedic Hospital Speising

    Vienna

Other trials in Austria

United States1 site
  • Insall Scott Kelly Institute

    New York, New York, 10065

Other trials in United States

Belgium1 site
  • St Luc General Hospital

    Brussels

Other trials in Belgium

Denmark1 site
  • Aalborg University Hospital

    Aalborg

Other trials in Denmark

France1 site
  • Medipole de Savoie

    Chambéry

Other trials in France

Netherlands1 site
  • Amphia Ziekenhuis Breda

    Breda

Other trials in Netherlands

Portugal1 site
  • Torres Verdras Hospital

    Torres Vedras, Lisbon District

Other trials in Portugal

Sweden1 site
  • Danderyd Hospital

    Stockholm

Other trials in Sweden

United Kingdom1 site
  • Addenbrooke's Hospital

    Cambridge

Other trials in United Kingdom

About this study

Official title: Study on the Signature Personalised Patient Care System With the Vanguard Knee System

The purpose of this study is to determine whether the percentage cases which have ideal mechanical axial alignment using the Vanguard total Knee implant with the Signature cutting blocks is higher than those without the use of Signature when measured immediately post-operatively.

Read the detailed description

The purpose of this study is to determine whether the percentage cases which have ideal mechanical axial alignment using the Vanguard total Knee implant with the Signature cutting blocks is higher than those without the use of Signature when measured immediately post-operatively. Other outcomes will include knee assessments and patient questionnaires.

Being tested
Vanguard Knee System with Signature Knee Guide, Vanguard Knee System with conventional Instruments
Keywords
knee, arthroplasty

What participants receive

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

  • Vanguard Knee System with Signature Knee GuideProcedure or surgery

    Use of Signature Knee Guide

  • Vanguard Knee System with conventional InstrumentsProcedure or surgery

    Vanguard Knee System with conventional Instruments

Study groups in NCT01092312
Study groupRoleWhat they receive
Signature Knee GuideExperimentalVanguard Knee System with Signature Knee Guide
Receives: Procedure: Vanguard Knee System with Signature Knee Guide
Conventional ApproachActive comparatorVanguard Complete Knee System with Conventional Approach
Receives: Procedure: Vanguard Knee System with conventional Instruments

What is being measured

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

  1. Mechanical Axial Alignment

    Femoral and tibial component alignment, femoral and tibial rotational alignment, tibial posterior slope

    Measured: Prior to Discharge: 0-2 weeks

Secondary outcomes (1)
  1. Clinical Outcome

    American Knee Society Score, Oxford Knee Score

    Measured: 6 months, 1 year

Timeline

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

  1. First posted24 Mar 2010 (estimated)
  2. Study startMar 2010
  3. Primary completionSep 2016
  4. Study completionSep 2016

Why it stopped: No difference in outcome between the two groups

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
325 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01092312
Sponsor's protocol ID
GBMET.CR.G4
Status last verified
Aug 2017
First submitted
7 Mar 2010
Last updated
5 Sep 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Vanguard Knee System with Signature Knee Guide and Vanguard Knee System with conventional Instruments in people with Arthroplasty, Replacement, Knee, run by Zimmer Biomet at 12 sites in 10 countries.

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 8 inclusion and 4 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 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 12 sites in Australia, Austria, United States, Belgium, Denmark and 5 more countries. 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: No difference in outcome between the two groups). 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?

Mechanical Axial Alignment (time frame: Prior to Discharge: 0-2 weeks). 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 Sep 2017.

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