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RecruitingNCT06379139BIOPAVIR2Updated Apr 23, 2024

Dynamic Full-field Optical Coherence Tomography for Structural and Microbiological Characterization of Endotracheal Tube Biofilm in Critically Ill Patients

An observational study in Healthcare Associated Infection, Critically Ill and Endotracheal Tube, sponsored by Centre Hospitalier Universitaire Dijon. Recruiting at 2 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-04-23.

Sponsored by Centre Hospitalier Universitaire Dijon · Observational

From the registry’s dates

  • Primary completion was expected by Mar 2025, 1 year 7 months ago, but the record still lists the study as recruiting.
  • Started Mar 2024; still recruiting 2 years 7 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
80
Ages
18 Years and older
Sex
All
01

Study summary

Biofilm is a microstructure organised into aggregates of microbiological species within a polymeric matrix. As early as the 2000s, the Centers for Disease Control and Prevention (CDC) recognised the possible role of the biofilm lining endotracheal endotracheal tubes in the development of ventilator-associated pneumonia (VAP) , the most common infection in intensive care, with a high morbidity and mortality rate and a significant increase in hospital costs.

Targeting biofilm therefore now appears to be a new area of interest for limiting the risk of VAP, and this rationale has led to the development of an intraluminal for abrading biofilm deposited on the inside of the intubation probe

. Evaluation of this type of strategy nevertheless justifies the introduction of more precise methods for characterisation of the biofilm.

To this end, the investigator carried out an initial clinical study describing the biofilm on intubation probes, BIOPAVIR 1, showing the existence of several biofilm structures, each associated with a specific microbiological signature. Several limitations including a lack of power due to an insufficient number of patients and the use of number of patients, and the use of a confocal microscopy technique with poor axial without the possibility of acquiring metabolic images of the biofilm.

Based on the previous description of biofilm by optical coherence tomography (OCT), and a recent experience with an optimised form of high-resolution OCT, called full-field OCT, the investigator hypothesise that full-field OCT will allow more accurate characterisation of biofilm, due to its high spatial resolution and its potential ability to capture metabolic activity in the biofilm BIOPAVIR 2 proposes to use the performance of full-field OCT to better characterise the biofilm lining endotracheal tubes in patients undergoing mechanical ventilation in intensive care units. This project represents a first step towards understanding the link between the development of biofilm on intubation and the occurrence of VAP

02

Conditions studied

  • Healthcare Associated Infection
  • Critically Ill
  • Endotracheal Tube
03

In context

Cross Infection

239 studies on the registry are indexed under Cross Infection; 48 are open to participants now.

This study's planned enrollment of 80 is below the median of 400 across 97 observational studies indexed under Cross Infection.

Browse Cross Infection studies →

Lead sponsor

Centre Hospitalier Universitaire Dijon is the lead sponsor of 495 studies on the registry; 105 are open to participants now.

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

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 over 18 years of age having declared their nonobjection and exposed to mechanical ventilation for at least two calendar days

Inclusion criteria

  • Patient or relative informed of the study and having declared their nonobjection
  • Patient over 18 years of age
  • Patient exposed to mechanical ventilation for at least two calendar days

Exclusion criteria

Exclusion Criteria:

  • Patient unable to declare their nonobjection
  • Patient whose endotracheal tube collection is impossible
  • Patient whose endotracheal tube is collected following self-extubation (sample contamination)
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
80 participants (estimated)
Patient registry
No

Groups and cohorts

  • BIOPAVIR 2 cohort

    Adult critically ill patients (\> 18 years of age) exposed to endotracheal tube for at least two calendar days

    Other: •Dynamic Full-Field Optical Coherence Tomography analysis of endotracheal tube

Interventions

  • Other•Dynamic Full-Field Optical Coherence Tomography analysis of endotracheal tube

    Dynamic full-field optical coherence tomography analysis of endotracheal tube sections to better apprehend strucural characterization of endotracheal tube-deposited biofilm

06

What researchers measure

Primary outcomes

  1. Dynamic Full-Field Optical Coherence Tomography-based biofilm structure type

    shape data

    Time frame: At Day 0, within 72hours following endothracheal tube removal

  2. type of microbiological associated with each shape

    Time frame: At Day 0, within 72hours following endothracheal tube removal

07

Study locations

2 of 2 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 23, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06379139
Lead sponsor
Centre Hospitalier Universitaire Dijon
Responsible party
Sponsor
First posted
Apr 23, 2024
Start date
Mar 1, 2024
Primary completion
Mar 2025 (estimated)
Completion
Mar 2025 (estimated)
Last update
Apr 23, 2024

Study contacts

Thomas MALDINEY
Contact
thomas.maldiney@ch-chalon71.fr
385910474 ext. +33
Thomas MALDINEY
principal investigator · CH William Morey

Oversight

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

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