Volatile Organic Compounds as Markers of Acute Rejection in Lung Transplant

NCT ID: NCT03172091

Last Updated: 2021-04-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-06-27

Study Completion Date

2021-10-31

Brief Summary

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The aim of research is to identify markers of acute rejection by VOC analysis in exhaled breath of bilateral-lung transplanted patients. 120 bi-lung transplanted patients will be divided into two groups : patients with acute rejection diagnosed on transbronchial biopsies and patients with no acute rejection. Exhaled breath will be collected for VOC analysis woth electronic nose and mass spectrometry. VOC profiles will be compared between the two groups of patients.

Detailed Description

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Prospective single-center study. A single visit, no follow-up. The visit will take place before or within five days from date of transbronchial biopsies (BTB). It will include a noninvasive collection of exhaled breath for VOC analysis. VOC analysis will be conducted using two types of devices: "electronic nose" and mass spectrometry.

200 bi-lung transplanted patients will be enrolled and divided into two groups.

* Group A, Acute rejection: 100 patients. Diagnosis of acute rejection retained on transbronchial biopsies or functional anomalies with the necessity of modifying the immunosuppressive regimen.
* Group B, control: 100 patients. Patients without respiratory functional abnormality and normal transbronchial biopsy.

VOC, detected by electronic nose and identified by mass spectrometry, will be compared between patients with a confirmed diagnosis of acute rejection (group A) and patients without rejection (control group B)

The duration of participation of each patient is 1 day. The duration of the inclusion period is estimated at 54 months from the first inclusion. The expected total duration of the research is 54 months

Conditions

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Transplant; Complication, Rejection

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Acute rejection

Pulmonary transplant patients with acute rejection

Group Type EXPERIMENTAL

eNose (electronic nose)

Intervention Type DEVICE

Collection of exhaled breath for an immediate analysis by electronic nose

Spectrometry

Intervention Type DEVICE

Collection of exhaled breath for an immediate analysis by mass spectrometry

Control group

Pulmonary transplant patients without acute rejection

Group Type OTHER

eNose (electronic nose)

Intervention Type DEVICE

Collection of exhaled breath for an immediate analysis by electronic nose

Spectrometry

Intervention Type DEVICE

Collection of exhaled breath for an immediate analysis by mass spectrometry

Interventions

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eNose (electronic nose)

Collection of exhaled breath for an immediate analysis by electronic nose

Intervention Type DEVICE

Spectrometry

Collection of exhaled breath for an immediate analysis by mass spectrometry

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Bi-pulmonary transplant patient
* Acute rejection group: Patients with transbronchial biopsies performed as part of their usual follow-up or for functional abnormality ; Diagnosis of acute rejection retained on the following arguments: histological lesions of cellular rejection or histological lesions of humoral rejection or normal histology but diagnosis of "functional rejection" retained and immunosuppressive treatment indicated
* Control group: Patients benefiting from systematically programmed transbronchial biopsies as part of post-transplant follow-up with normal histology and absence of functional respiratory abnormality

Exclusion Criteria

* Patient unable to realize a vital capacity measure
* Neoplasia currently treated
* Unresolved acute bronchial complication (stenosis or dehiscence)
* Immunosuppressive treatment of acute rejection already begun
* Patient who has already participated in the protocol and already included in one of the two study groups
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hopital Foch

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jean-Louis Couderc, MD-PhD

Role: STUDY_CHAIR

Pneumologie Hopital Foch

Antoine Roux

Role: PRINCIPAL_INVESTIGATOR

Pneumologie Hopital Foch

Hélène Salvator, MD

Role: STUDY_CHAIR

Pneumologie Hopital Foch

Philippe Devillier, MD-PhD

Role: STUDY_CHAIR

UPRES EA 220 Hopital Foch

Locations

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Hopital Foch

Suresnes, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Hélène Salvator, MD

Role: CONTACT

+33(0)046252955

Facility Contacts

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Antoine Roux

Role: primary

+33(0)146253731

Other Identifiers

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2016-A00688-43

Identifier Type: OTHER

Identifier Source: secondary_id

2016/28

Identifier Type: -

Identifier Source: org_study_id

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