ClinicalTrials.gg
RecruitingNCT05227924Updated Aug 27, 2024

Safety and Performance Assessment of the SYMBOL Range of Medical Devices in Patients Underlying Total Hip Arthroplasty

An observational study in Degenerative Hip Joint Disease, Post-traumatic Osteoarthritis and Hip Arthritis, sponsored by Dedienne Sante S.A.S.. Recruiting at 9 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-08-27.

Sponsored by Dedienne Sante S.A.S. · Observational

From the registry’s dates

  • Started Sep 2021; still recruiting 5 years 1 month later.

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Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
747
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 38 studies in Osteoarthritis, Hip with a site in France — 10 open to participants now, 16 under way, none of them phase 3. Osteoarthritis, Hip · France.

Planned enrollment
3rd of 17
747 · median 250
Started
2021
with 6 others
Observational
17 of 38
6 open now
Primary completion
2034-09
later than 14 of 15 live
Registered
26th of 38
by date

Among the 38 studies in Osteoarthritis, Hip with a site in France, this one is the 3rd largest by planned enrollment of the 17 observational ones that give a count, is one of 7 that started in 2021, is one of 17 observational ones, reaches primary completion later than 14 of the 15 other live ones, and was the 26th registered.

Osteoarthritis, Hip

641 studies on the registry are indexed under Osteoarthritis, Hip; 120 are open to participants now.

Browse Osteoarthritis, Hip studies →

Open to participants now

10 of the 38 studies in Osteoarthritis, Hip with a site in France are open now. Recruiting first, the newest first:

4 more — sign in →

All 10 open studies →

A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →

Who these studies take

Of the 87 Osteoarthritis, Hip studies recruiting now, 54 (62%) set no upper age limit and 7 (8%) stop at 75 or younger; 3 take children under 18; 6 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

The purpose of this post-market clinical follow up study is to assess the safety and effectiveness of the SYMBOL range of medical devices. The study will evaluate the outcome of Total Hip Arthroplasty using medical devices from SYMBOL range over a period of 10 years.

03

Conditions studied

  • Degenerative Hip Joint Disease
  • Post-traumatic Osteoarthritis
  • Hip Arthritis
  • Femoral Neck Fractures
  • Avascular Necrosis of the Femoral Head
  • Failure of Prosthetic Joint Implant
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patient requiring total hip arthroplasty

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient age > 18 years at implantation.
  • Patient who will undergo, during the study's period of inclusion, a total hip arthroplasty (primary or revision) with at least one SYMBOL medical device (DEDIENNE Santé).
  • Patient informed of his/her participation and willing to participate in the study.
  • Patient able to read, write and understand French.

Exclusion criteria

Exclusion Criteria:

  • Patient deprived of freedom, under guardianship/curatorship or placed under judicial protection
  • Patient unable to follow study procedures.
  • Patient who has already been included in the study for a total hip arthroplasty (primary or revision) with at least one SYMBOL medical device.
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
747 participants (estimated)
Patient registry
No

Groups and cohorts

  • SYMBOL medical devices

    Patients undergoing total hip arthroplasty with at least one medical device from the SYMBOL range

    Device: Total hip arthroplasty (primary or revision)

Interventions

  • DeviceTotal hip arthroplasty (primary or revision)

    Total hip arthroplasty with at least one medical device from the SYMBOL range

06

What researchers measure

Primary outcomes

  1. Survivorship of 13 individual SYMBOL orthopaedic components

    The survival rate of an orthopaedic implant will be calculated on the basis of the first occurrence of implant revision from any cause.

    Time frame: 10 years post-operative

Secondary outcomes

  1. Survivorship of all individual SYMBOL orthopaedic components

    The survival rate of an orthopaedic implant will be calculated on the basis of the first occurrence of implant revision from any cause.

    Time frame: 6 months, 18 months and 5 years post-operative

  2. Survivorship of the SYMBOL STEM VARA CEM orthopaedic implant.

    The survival rate of an orthopaedic implant will be calculated on the basis of the first occurrence of implant revision from any cause.

    Time frame: 10 years post-operative

  3. Survivorship of the SYMBOL implants by component assembly (acetabular + femoral components)

    The survival rate of a combinaison of implant (acetabular + femoral component) will be calculated on the basis of the first occurrence of implant revision from any cause.

    Time frame: Through study completion, an average of 10 years

  4. Adverse Device Effects.

    All adverse device effects occurring from the time of subject enrollment until study termination or study completion including intra-operative adverse events. Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: Through study completion, an average of 10 years

  5. Radiographic assessment - Implant subsidence.

    Stem subsidence will be classified based on the following: * Stem subsidence \< 3mm * Stem subsidence between 3 and 5mm * Stem subsidence \> 5mm Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: 6 months, 18 months, 5 and 10 years post-operative

  6. Radiographic assessment - Osteolysis (granuloma).

    Assessment will consider: - Presence or absence of osteolysis. If osteolysis is present, impacted areas will be determined according to DeLee and Charnley or Gruen classification. Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: 6 months, 18 months, 5 and 10 years post-operative

  7. Radiographic assessment - Radiolucent lines.

    Assessment will consider: - Presence or absence of radiolucent lines. If radiolucent line is present: * Impacted areas will be determined according to DeLee and Charnley or Gruen classification. * Type of radiolucent lines will be classified based on the following : \< 2mm - regular or \> 2mm - irregular. Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: 6 months, 18 months, 5 and 10 years post-operative

  8. Radiographic assessment - Eterotopic ossifications.

    Assessment will consider: - Presence or absence of eterotopic ossifications. If eterotopic ossification, grade will be specified. This outcome will also be measured for subgroup analyses by component association.

    Time frame: 6 months, 18 months, 5 and 10 years post-operative

  9. Harris Hip Score (or modified Harris Hip Score) at each visit.

    The Harris Hip Score is a joint specific score that consists of 10 items covering domains of pain, function, functional activities, absence of deformity, and hip range of motion. Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: Pre-operative, 6 months, 18 months, 5 and 10 years post-operative

  10. Pain intensity (Numeric Rating Scale)

    Numeric Rating scale for pain intensity assessment: * Minimum value: 0 (=no pain) * Maximum value: 10 (= worst possible pain). (Higher scores mean worst outcome). Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: Pre-operative, 6 months, 18 months, 5 and 10 years post-operative

  11. EQ-5D-5L score

    The EQ-5D-5L score consists of two parts: a descriptive system and a visual analogue scale. The descriptive system is used to describe the subject's health state and consists of five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. The visual analogue scale records the subject's self-rated health on a vertical visual analogue scale. Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: Pre-operative, 18 months, 5 and 10 years post-operative

  12. Global patient satisfaction

    Ordinal scale for global patient satisfaction assessment: - Possible values are: not satisfied/quite satisfied/satisfied/very satisfied ("Very satisfied" is the best possible outcome).

    Time frame: 18 months post-operative

  13. Hip joint patient satisfaction (Numeric Rating Scale)

    Numeric rating scale : Percentage Scale for Hip Joint Patient Satisfaction Assessment. Range of values: from 0 to 100. (100 is the best possible outcome and is equivalent to a normal hip). Note: This outcome will also be used for subgroup analyses by component association.

    Time frame: 5 years and10 years post-operative

07

Study locations

8 of 9 sites recruiting
  • Hôpital Privé de la Châtaigneraie
    Beaumont, 63110, France
    Recruiting
  • CH de Marmande - CHIC
    Marmande, 47207, France
    Terminated

    Not enrolling at this site.

  • Hôpital Privé du Grand Narbonne
    Montredon-des-Corbières, 11100, France
    Recruiting
  • Polyclinique Grand Sud
    Nîmes, 30932, France
    Recruiting
  • Clinique Mutualiste Catalane
    Perpignan, 66140, France
    Recruiting
  • CH de Péronne
    Péronne, 80200, France
    Recruiting
  • Clinique Mutualiste
    Saint-Étienne, 83000, France
    Recruiting
  • Hôpital d'Instruction des Armées Saint-Anne
    Toulon, 83000, France
    Recruiting
  • Hôpital Robert Schuman - UNEOS
    Vantoux, 57070, France
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Sep 2021 (actual). Primary completion is estimated for Sep 2034, 156 months after the start.

Of 81 observational studies under Osteoarthritis, Hip, half reached primary completion within 53 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 113. This study's planned 156 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 2, 2021
First posted
Feb 8, 2022
StartActual
Sep 21, 2021
Primary completionEst.
Sep 2034
CompletionEst.
Sep 2034
Last update
Aug 27, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 27, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05227924
Lead sponsor
Dedienne Sante S.A.S.
Collaborators
EVAMED
Responsible party
Sponsor
First posted
Feb 8, 2022
Start date
Sep 21, 2021
Primary completion
Sep 2034 (estimated)
Completion
Sep 2034 (estimated)
Last update
Aug 27, 2024

Study contacts

Marion Burland
Contact
reg.aff@dedienne-sante.com
+33 (0)4 66 28 06 85
Thomas Rousseau
principal investigator · Clinique Mutualiste Catalane

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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