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CompletedNCT05593874Updated May 8, 2024

Predictive Value of Nu.Q™ Biomarkers to Help Guiding the Management of Osteoarticular Infections

An observational study in Diabetic Foot, Chronic Osteomyelitis and Septic Arthritis, sponsored by University Hospital, Geneva. Completed at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-05-08.

Sponsored by University Hospital, Geneva · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
30
Ages
18 Years and older
Sex
All
01

Study summary

Diabetic foot ulcers are frequent with average lifetime risk of 15%, and can lead to bone and joint infections. Current protocols for their management include evaluation of ischemia, assessment of underlying bone infection, sharp debridement, off-loading and use of dressings that promote moist wound healing. Extensive debridement is optimal for wound healing and decreases the risk of recurrence. However, extension of surgical debridement is left at the clinician judgement and thus lacks standardised protocols. Plus, there is currently no known risk factors or specific biomarkers that can help guide the clinician for the extent of debridement or that can predict a recurrence in case of non-extensive debridement. The main objectives of the study are to either unravel a new biomarker, and/or identify risk factors associated with poor prognosis following surgical debridement in diabetic foot ulcers. Histones, more specifically H3.1 subtype, have been associated with sepsis.

The main hypothesis is that higher blood levels of H3.1 will be present in participants showing poor prognosis (i.e., having additional surgeries, amputation, death) and that a rise in H3.1 blood levels compared to baseline (before the 1st surgical intervention) would provide an early warning of relapse or treatment failure.

02

Conditions studied

  • Diabetic Foot
  • Chronic Osteomyelitis
  • Septic Arthritis

Keywords

  • diabetic foot
  • osteoarticular infections
03

In context

Diabetic Foot

1,077 studies on the registry are indexed under Diabetic Foot; 222 are open to participants now.

This study's enrollment of 30 is below the median of 100 across 191 observational studies indexed under Diabetic Foot.

Browse Diabetic Foot studies →

Lead sponsor

University Hospital, Geneva is the lead sponsor of 379 studies on the registry; 70 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
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All diabetic patients fulfilling the inclusion criteria with no exclusion criteria.

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

  • Adults (age ≥ 18 years old) suffering from diabetes mellitus (type 1 or 2)
  • Diabetic foot ulcer with severe infection (grade 3 and 4 according to IWGDF 2019 classification)
  • Scheduled surgical debridement

Exclusion criteria

Exclusion Criteria:

  • Spondylodiscitis
  • Pregnant or lactating women
  • Previous enrolment in a clinical trial
  • Consent declined by participant or tutor in case of incapacitation
  • Tutor cannot be reached for consent in case of incapacitation
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
30 participants (actual)
Target follow-up
2 Months
Patient registry
Yes
Biospecimen retention
Samples with dna

Groups and cohorts

  • Diabetic foot ulcer with osteoarticular infections

    Diabetic patients suffering from ulcer that led to an osteoarticular infection (e.g. chronic osteomyelitis, septic arthritis)

    Diagnostic Test: Histones H3.1 blood levels

Interventions

  • Diagnostic testHistones H3.1 blood levels

    Measure of blood concentrations of histone subtype H3.1

06

What researchers measure

Primary outcomes

  1. Clinical failure

    Presence of infection (IWGDF 2019 criteria) and No change in H3.1 blood levels from baseline (day -1) or secondary increase after an initial decline ≥ 75%

    Time frame: day 30 and day 60

Secondary outcomes

  1. Mortality

    Death during the study period from day-1 (day of the 1st intervention)

    Time frame: day 30 and day 60

  2. Amputation rate

    Frequency of the event 'amputation' as incidence rate from day-1 (day of the 1st intervention)

    Time frame: day 1 to day 60

  3. Additional surgical interventions rate

    Frequency of the event 'additional surgical intervention' (i.e., debridement, amputation) as incidence rate from day-1 (day of the 1st intervention)

    Time frame: day 1 to day 60

  4. Time-to-amputation

    Measured in days from day-1 (day of the 1st intervention)

    Time frame: day 1 to day 60

  5. Time-to-additional-intervention

    Measured in days from day-1 (day of the 1st intervention)

    Time frame: day 1 to day 60

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Study locations

1 site
  • University Hospitals Geneva
    Geneva, 1211, Switzerland
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References and documents

Publications

  • Monteiro-Soares M, Russell D, Boyko EJ, Jeffcoate W, Mills JL, Morbach S, Game F; International Working Group on the Diabetic Foot (IWGDF). Guidelines on the classification of diabetic foot ulcers (IWGDF 2019). Diabetes Metab Res Rev. 2020 Mar;36 Suppl 1:e3273. doi: 10.1002/dmrr.3273. PubMed 32176445 ↗
  • Lebrun E, Tomic-Canic M, Kirsner RS. The role of surgical debridement in healing of diabetic foot ulcers. Wound Repair Regen. 2010 Sep-Oct;18(5):433-8. doi: 10.1111/j.1524-475X.2010.00619.x. PubMed 20840517 ↗
  • Thiam HR, Wong SL, Qiu R, Kittisopikul M, Vahabikashi A, Goldman AE, Goldman RD, Wagner DD, Waterman CM. NETosis proceeds by cytoskeleton and endomembrane disassembly and PAD4-mediated chromatin decondensation and nuclear envelope rupture. Proc Natl Acad Sci U S A. 2020 Mar 31;117(13):7326-7337. doi: 10.1073/pnas.1909546117. Epub 2020 Mar 13. PubMed 32170015 ↗
  • Wong SL, Demers M, Martinod K, Gallant M, Wang Y, Goldfine AB, Kahn CR, Wagner DD. Diabetes primes neutrophils to undergo NETosis, which impairs wound healing. Nat Med. 2015 Jul;21(7):815-9. doi: 10.1038/nm.3887. Epub 2015 Jun 15. PubMed 26076037 ↗
  • Li Y, Liu B, Fukudome EY, Lu J, Chong W, Jin G, Liu Z, Velmahos GC, Demoya M, King DR, Alam HB. Identification of citrullinated histone H3 as a potential serum protein biomarker in a lethal model of lipopolysaccharide-induced shock. Surgery. 2011 Sep;150(3):442-51. doi: 10.1016/j.surg.2011.07.003. PubMed 21878229 ↗
  • Eichhorn T, Linsberger I, Laukova L, Tripisciano C, Fendl B, Weiss R, Konig F, Valicek G, Miestinger G, Hormann C, Weber V. Analysis of Inflammatory Mediator Profiles in Sepsis Patients Reveals That Extracellular Histones Are Strongly Elevated in Nonsurvivors. Mediators Inflamm. 2021 Mar 17;2021:8395048. doi: 10.1155/2021/8395048. eCollection 2021. PubMed 33790693 ↗
  • Morimont L, Dechamps M, David C, Bouvy C, Gillot C, Haguet H, Favresse J, Ronvaux L, Candiracci J, Herzog M, Laterre PF, De Poortere J, Horman S, Beauloye C, Douxfils J. NETosis and Nucleosome Biomarkers in Septic Shock and Critical COVID-19 Patients: An Observational Study. Biomolecules. 2022 Jul 27;12(8):1038. doi: 10.3390/biom12081038. PubMed 36008932 ↗

Individual participant data

Plan to share: No

09

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

Ran from Oct 2022 to primary completion in Aug 2023, 10 months.

Of 65 non-industry observational studies under Diabetic Foot, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 94. This study's 10 months is below that.

Counting every sponsor, half of 90 studies reached it within 28 months; a quarter within 15 and three quarters within 59.

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

Registered
Oct 17, 2022
First posted
Oct 25, 2022
StartActual
Oct 10, 2022
Primary completionActual
Aug 18, 2023
CompletionActual
Oct 31, 2023
Last update
May 8, 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 May 8, 2024, 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
NCT05593874
Responsible party
Mikael de Lorenzi-Tognon (Principal Subinvestigator, University Hospital, Geneva) — Principal investigator
First posted
Oct 25, 2022
Start date
Oct 10, 2022
Primary completion
Aug 18, 2023
Completion
Oct 31, 2023
Last update
May 8, 2024

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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