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Primary Total Hip ArthroplastySL-Plus HA MIANCT04036071

Clinical Observation Study of the Hydroxylapatite-coated SLPLUS™MIA Hip Shaft

An observational study of Primary Total Hip Arthroplasty, run by Smith & Nephew Orthopaedics AG at 3 sites in Austria.

Terminated

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

Official record
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Trial summary

Summary from initial protocol Goal: Validation of the HA (hydroxylapatite) coated SLPLUS ™ MIA stem within an observation study Study design: prospective, multicenter, observational, noncomparative study Study population: 300 consecutive cases (HA-coated implants), 60 cases per study site. Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Primary Total Hip Arthroplasty
What is being tested?
Total Hip Arthroplasty
Type of treatment
Medical device
How many people
165 participants
Where
3 sitesAustria
Study dates
15 May 2009to 27 Oct 2020
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 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients requiring primary total hip arthroplasty of the affected side (unilateral or bilateral).

Who may be able to join

  • Primary total hip endoprosthesis of the side affected (unilateral or bilateral)
  • Patient shall be provided with a HA coated SLPLUS™ MIA stem
  • Patient has no general medical contraindications regarding the surgery
  • Signed informed consent form for the participation in the study
  • X-ray examinations are possible
  • Patient is willing to participate in the post-operative follow-up program
  • Age: 18-75 years

Who cannot join

  • Previous failed hip joint surgery (endoprosthesis) of the side affected
  • Previous infections in the joint affected; systemic infections

Trial locations and contacts

3 sites in 1 country.

Austria3 sites
  • Orthopädische Landesklinik Salzburg

    Salzburg, 5020

  • Orthopädie LKH Steyr

    Steyr, 4400

  • Orthopädisches Krankenhaus Gersthof

    Vienna

Other trials in Austria

About this study

Summary from initial protocol Goal: Validation of the HA (hydroxylapatite) coated SLPLUS

™ MIA stem within an observation study Study design: prospective, multicenter, observational, noncomparative study Study population: 300 consecutive cases (HA-coated implants), 60 cases per study site. Intervention (if applicable): Implantation of a total hip endoprosthesis Main goals/endpoints: Radiological: radiolucent lines, osteolysis, hypo- and hypertrophy of the cortex, loosening of the implant or migration. Clinical: Harris Hip Score, HOOS Score, EQ-5D, implant-related complications, revisions Type and extent of the risks associated with the study participation as well as benefits for the patient: All patients will benefit from the hip prostheses without exception. There are no increased risks for the patients participating in the study compared to patients who do not participate. Normal, necessary follow-up exams will be performed over the course of 10 years. In addition, study patients are asked to provide information on their general state of health and the condition of their hip in two questionnaires. These clinical and radiological follow-up exams will then be quantitatively evaluated within the scope of the study in accordance with a standardized protocol. Accordingly, the direct benefit for the patients from the participation in the study is currently not yet foreseeable.

Being tested
Total Hip Arthroplasty
Keywords
HA (hydroxylapatite) coated SL-PLUS™ MIA stem

What participants receive

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

  • Total Hip ArthroplastyDevice

    Total Hip Arthroplasty using the SL-PLUS™ MIA cement free hip stem

What is being measured

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

  1. Harris Hip Score

    The Harris Hip Score (HHS) is a clinician-based outcome measure frequently used for the evaluation of patients following a total hip arthroplasty

    Measured: up 10 years after implantation

  2. WOMAC Osteoarthritis Index

    The Western Ontario and McMaster Universities Arthritis Index (WOMAC) is widely used in the evaluation of Hip and Knee Osteoarthritis. It is a self-administered questionnaire consisting of 24 items divided into 3 subscales:[1]

    Pain (5 items): during walking, using stairs, in bed, sitting or lying, and standing upright Stiffness (2 items): after first waking and later in the day Physical Function (17 items): using stairs, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy domestic duties, light domestic duties

    Measured: up 10 years after implantation

  3. EuroQuol-5D questionnaire

    EQ-5D is a standardised measure of health status developed by the EuroQol Group in order to provide a simple, generic measure of health for clinical and economic appraisal

    Measured: up 10 years after implantation

  4. Intra- und perioperative implant-related "Adverse Events" (AE) and complications until discharge

    Adverse Events, Adverse Device Effects, Serious Adverse Events, Serious Adverse Device Effects

    Measured: up to patient's discharge from the hospital / clinic (from surgery up to 7 days after surgery)

  5. Postoperative AE up to 10 years after the surgery

    Adverse Events, Adverse Device Effects, Serious Adverse Events, Serious Adverse Device Effects

    Measured: up 10 years after implantation

  6. Survival, Kaplan Meier

    Hip implants in situ after 10 years of follow-up

    Measured: up 10 years after implantation

Secondary outcomes (1)
  1. Radiographic changes defined as radiolucent lines,osteolysis, hypo- and hypertrophy of the cortex, loosening of the implant or migration.

    Measured: up 10 years after implantation

Timeline

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

  1. First posted29 Jul 2019
  2. Study start15 May 2009
  3. Primary completion27 Oct 2020
  4. Study completion27 Oct 2020

Why it stopped: Business reasons. High subject attrition at the 10-year time point leading to loss of statistical power and data value. Decision finalised: 05May2023.

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
165 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04036071
Sponsor's protocol ID
D10080-2
Acronym
SL-Plus HA MIA
Status last verified
May 2023
First submitted
10 Jul 2019
Last updated
1 Jun 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Primary Total Hip Arthroplasty, run by Smith & Nephew Orthopaedics AG at 3 sites in Austria.

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 2 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 1 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Austria. 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: Business reasons. High subject attrition at the 10-year time point leading to loss of statistical power and data value. Decision finalised: 05May2023.). 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?

Harris Hip Score (time frame: up 10 years after implantation). The study lists 6 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 1 Jun 2023.

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