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RecruitingNCT04936958Updated Apr 13, 2023

RETR(Osteomyelitis)

An observational study in Osteomyelitis, sponsored by Hospices Civils de Lyon. Recruiting at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-04-13.

Sponsored by Hospices Civils de Lyon · Observational

From the registry’s dates

  • Primary completion was expected by May 2024, 2 years 6 months ago, but the record still lists the study as recruiting.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
50
Ages
18 Years and older
Sex
All
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Study summary

This is a retrospective study describing the management of osteomyelitis in a referece center, with success and failures.

Read the detailed description

Chronic osteomyelitis is a serious osteoarticular infection that most often occurs in the long bones (tibia, femur, humerus), responsible for significant morbidity with the risk of fracture and amputation. It is caused by the presence of bacteria in the bone marrow, sometimes responsible for an intraosseous abscess. Chronic osteomyelitis can have a hematogenous or more often exogenous origin, after trauma or surgery.

Despite the progress made in both antibiotics and surgical treatment, the probability of failure of this treatment (infectious recurrence) is of the order of 20%, and has unfortunately remained stable for more than 20 years.

An innovative treatment, Cerament-G (BONESUPPORT AB Laboratory, Sweden), a synthetic bone substitute composed of hydroxyapatite, calcium sulphate, and gentamicin (CE marking), fills the "dead space" which is formed during surgery, prevents this cavity filled with blood from becoming infected, and promotes the regeneration of the bone within this space, limiting the risk of fracture in the medium and long term. It also locally delivers very high doses of gentamicin for several weeks.

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Conditions studied

  • Osteomyelitis

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Keywords

  • hematogenous
  • bone substitute
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In context

Osteomyelitis

105 studies on the registry are indexed under Osteomyelitis; 30 are open to participants now.

This study's planned enrollment of 50 is below the median of 86 across 41 observational studies indexed under Osteomyelitis.

Browse Osteomyelitis studies →

Lead sponsor

Hospices Civils de Lyon is the lead sponsor of 1,866 studies on the registry; 448 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients who presented with osteomyelitis between 2017 and 2021 managed at the CRIOAc Lyon

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

  • Patients who presented with osteomyelitis between 2017 and 2021

Exclusion criteria

Exclusion Criteria:

  • Patients who objected to participating in the study
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
50 participants (estimated)
Patient registry
No

Groups and cohorts

  • patients having had an osteomyelitis since 2017

    Other: patients having had an osteomyelitis since 2017

Interventions

  • Otherpatients having had an osteomyelitis since 2017

    description of osteomyelitis and their management

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What researchers measure

Primary outcomes

  1. rate of osteomyelitis in BJI

    proportion of patients having had an osteomyelitis

    Time frame: between 2017 and 2021

  2. site of osteomyelitis

    localisation

    Time frame: between 2017 and 2021

  3. bone defect size

    dimension of the bone defect size

    Time frame: between 2017 and 2021

  4. type of osteomyelitis

    hematogenous or after a trauma or after a surgery

    Time frame: between 2017 and 2021

  5. rate of bacteria involved in osteomyelitis

    description of bacteria responsible for osteomyelitis

    Time frame: between 2017 and 2021

  6. Description of patients

    comorbidities, age

    Time frame: between 2017 and 2021

  7. Description of the follow up of the patients

    duration of the follow up of patients

    Time frame: between 2017 and 2021

  8. description of patients : medical treatment

    description and duration of antibiotics

    Time frame: between 2017 and 2021

  9. Description of patients : surgical treatment

    description of surgery performed

    Time frame: between 2017 and 2021

  10. rate of patient treated with CERAMENT

    proportion of patients having had CERAMENT

    Time frame: between 2017 and 2021

  11. rate of treatment failure

    treatment failure is defined by local clinical and/or microbiological relapse; and/or need for additional surgery; death of septic origin

    Time frame: between 2017 and 2021

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Study locations

1 of 1 sites recruiting
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References and documents

Related links

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for May 2023; primary completion for May 2024, 12 months later.

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

Registered
Jun 15, 2021
First posted
Jun 23, 2021
StartEst.
May 1, 2023
Primary completionEst.
May 1, 2024
CompletionEst.
May 1, 2025
Last update
Apr 13, 2023
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 Apr 13, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04936958
Responsible party
Sponsor
First posted
Jun 23, 2021
Start date
May 1, 2023 (estimated)
Primary completion
May 1, 2024 (estimated)
Completion
May 1, 2025 (estimated)
Last update
Apr 13, 2023

Study contacts

Tristan Ferry, Md,PhD
Contact
tristan.ferry@chu-lyon.fr
04 26 73 29 38
Johanna Boulant, CRA
Contact
johanna.boulant@chu-lyon.fr
04 26 73 29 38

Oversight

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

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