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OsteoarthritisMagnumCRCTNCT01247038

A Multicentre Trial to Compare Two Articulating Bearing Surfaces as Used in Cementless Primary Hip Arthroplasty

A study testing Metal on ceramic articulation and Metal-on-Metal in people with Osteoarthritis, run by Zimmer Biomet at 2 sites in 2 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 aim of this study is to demonstrate the non-inferiority of the ceramic-on-metal articulation using large diameter bearings (38mm to 60mm) compared to the metal on metal articulation using the same cup in regards to the composite clinical success (CCS) rate at 2 years postoperatively (delta = 10% minimum clinically… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Osteoarthritis
What is being tested?
Metal on ceramic articulation and Metal-on-Metal
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
130 participants
Where
2 sitesin 2 countries
Study dates
Jan 2011to 10 Jul 2015
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 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Primary total hip replacement
  • Patient with degenerative joint disease (inflammatory or non-inflammatory) or any of the composite diagnoses of osteoarthritis,avascular necrosis, legg perthes, rheumatoid arthritis, diastrophic variant, fracture of the pelvis, fused hip, slipped capital epiphysis, subcapital fractures, traumatic arthritis
  • Patients preoperative Harris hip score < 80 points
  • Patients with limited co-morbidity - ASA I - III
  • Patients with normal urea and electrolyte levels and creatinine levels
  • Patients must be able to understand instructions and be willing to return for follow-up
  • Patients willing to provide blood and urine samples for metal ion analysis at follow-up

Who cannot join

  • Patient preoperative Harris hip score > 80 points
  • Pre-existing metal implants
  • Patients with significant co-morbidity - ASSA IV - V
  • Dementia and inability to understand and follow instructions
  • Neurological conditions affecting movement
  • Women younger than 45 years old
Show all 9Show fewer
  • Presence of symptomatic arthritis in other lower limb joints
  • Patients requiring smaller than 38mm and larger than 60mm diameter femoral heads
  • Patients taking NSAIDs and / all drugs that will affect bone metabolism

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Bosnia and Herzegovina1 site
  • Orthopaedic Hospital & Rehabilitation Clinic of "Dr Miroslav Zotovic"

    Banja Luka

Other trials in Bosnia and Herzegovina

South Africa1 site
  • Johannesburg Hospital

    Parktown

Other trials in South Africa

About this study

Official title: A Multicentre Prospective Randomised Control Trial to Compare Two Articulating Bearing Surfaces, Ceramic on Metal and Metal on Metal Large Diameter Femoral Heads, as Used in Cementless Primary Hip Arthroplasty

The aim of this study is to demonstrate the non-inferiority of the ceramic-on-metal articulation using large diameter bearings (38mm to 60mm) compared to the metal on metal articulation using the same cup in regards to the composite clinical success (CCS) rate at 2 years postoperatively (delta = 10% minimum clinically significant difference in rates).

Read the detailed description

This multicentre randomised controlled trial will compare the clinical outcome of the ceramic-on-metal articulation against a metal-on-metal articulation using the same Recap Acetabular cup.

The metal ion release will be evaluated at predetermined postoperative intervals during the first 36 months. A trial will be conducted as a clinical trial in accordance with the Medical Devices Directive 93/42/EEC (2002).

A total of 150 patients have to be recruited from the South African centre (2 groups)

The initial study assessment period will be 48 months; 24 months recruitment and 24 months follow-up. The follow-up reviews will be at 6 weeks, 6 months, 1 year, 2 years and 3 years. A 5 year and 10 year clinical review will also be carried out with all patients.

An assessment of incidences of adverse events and metal ion release concentrations will be made when all patients are at 6 months postoperatively.

Conditions
Osteoarthritis
Being tested
Metal on ceramic articulation, Metal-on-Metal
Medical subject headings
Osteoarthritis

What participants receive

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

  • Metal on ceramic articulationDevice

    Also called MagnumC

    Metal on ceramic articulation against metal-on-metal articulation using the same Recap Acetabular cup

  • Metal-on-MetalDevice

    Also called Magnum

    Metal on Metal articulation

Study groups in NCT01247038
Study groupRoleWhat they receive
Metal on ceramic articulationExperimentalThe arm consists of patients with Ceramic femoral heads articulating with metal acetabular cups
Receives: Device: Metal on ceramic articulation
Metal-on-metalActive comparatorThe arm consists of patients with Metal femoral heads articulating with metal acetabular cups
Receives: Device: Metal-on-Metal

What is being measured

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

  1. Metal ion concentration in blood and urine

    Metal ion concentration will be determined from patients blood and urine at prescribed intervals

    Measured: 2 years post operatively

Secondary outcomes (1)
  1. Composite Clinical Score (CCS) rate at 2 years post operative

    Measured: 2 years post operatively

Timeline

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

  1. First posted24 Nov 2010 (estimated)
  2. Study startJan 2011
  3. Primary completion10 Jul 2015
  4. Study completion10 Jul 2015

Why it stopped: Biomet's focus has changed and we no longer expect further developments

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
Single blind
Who is masked
Participant
Enrolment
130 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01247038
Sponsor's protocol ID
BMETEU.CR.EU33
Other IDs
Biomet UK Healthcare Ltd
Acronym
MagnumCRCT
Status last verified
Jun 2017
First submitted
22 Nov 2010
Last updated
21 Jun 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Metal on ceramic articulation and Metal-on-Metal in people with Osteoarthritis, run by Zimmer Biomet at 2 sites in 2 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 7 inclusion and 9 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 21 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Bosnia and Herzegovina, South Africa. 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: Biomet's focus has changed and we no longer expect further developments). 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?

Metal ion concentration in blood and urine (time frame: 2 years post operatively). 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 21 Jun 2017.

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