Histopathological Analysis of Renal Biopsies With Dynamic Full-field Optical Coherence Tomography, a Comparison to Conventional Histopathological Findings in Kidney Transplant Recipients (HARBOR) (HARBOR)

Histopathological Analysis of Renal Biopsies With Dynamic Full-field Optical Coherence Tomography, a Comparison to Conventional Histopathological Findings in Kidney Transplant Recipients

Banff classification stands as gold standard and international consensus for the identification, diagnosis and categorization of renal allograft pathology. In addition to multiple revision dedicated to the clarification and refinement of these diagnostic categories, a special attention is now dedicated to the development of automated protocols serving the use of artificial intelligence in digital pathology. To be integrated in the actual early post-transplant monitoring procedure, such original approach is considered to match various growing expectations of clinicians and pathologists regarding the future of transplant nephropathology : decrease inter-observer variability, reduce human errors and limit time-consuming analysis of kidney biopsy. Among these, an accelerated reading and access to Banff diagnostic criteria could help initiating both appropriate and immediate treatment to improve graft survival in kidney transplant recipients. Yet conventional histopathology still requires the preparation of a paraffin block, sections as well as subsequent colorations that altogether delay the final pathological diagnosis and urge the need for additional diagnostic modalities. Designed to overcome this critical limitation, the HARBOR study intends to test the performance of direct histopathological examination of fresh kidney biopsy with full-field optical coherence tomography for the identification of Banff elemental lesions and diagnostic categories.

Study Overview

Study Type

Observational

Enrollment (Actual)

16

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Saône-et-Loire
      • Chalon sur Saône, Saône-et-Loire, France, 71100
        • Centre Hospitalier William Morey - Chalon sur Saône

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

patient > 18 years of age who received renal transplant are registered in the DIVAT cohort. It comprises more than 300 clinical and biological parameters collected at the time of transplant, at 3 months, 6 months and at each anniversary of the transplant. The DIVAT cohort and network is accredited by the CNIL (Commission Nationale de l'Informatique et des Libertés)

Description

Inclusion Criteria:

  • patient > 18 years of age who received renal transplant registered in the DIVAT cohort with kidney biopsy between start study date and primary completion date

Exclusion Criteria:

  • inability to perform dynamic full-field optical coherence tomography observation at the moment of kidney biopsy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
The DIVAT cohort
patient > 18 years of age who received renal transplant are registered in the DIVAT cohort (standing for computerized and validated data in transplantation, "Données Informatisées VAlidées Transplantation"). It comprises more than 300 clinical and biological parameters collected at the time of transplant, at 3 months, 6 months and at each anniversary of the transplant. The DIVAT cohort and network is accredited by the CNIL (standing for "Commission Nationale de l'Informatique et des Libertés")
Dynamic full-field optical coherence tomography analysis of kidney transplant biopsy before conventional histopathological analysis

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Banff lesion scores based on dynamic full-field optical coherence tomography measurement
Time Frame: Outcome measure is assessed 15 days following kidney transplant biopsy

Provide a better understanding of the ability of dynamic full-field optical coherence tomography to identify and score the usual Banff lesions comprising interstitial inflammation, tubulitis, intimal arteritis, glomerulitis, peritubular capillaritis, interstitial fibrosis, tubular atrophy, vascular fibrous intimal thickening, glomerular basement membrane double contours, mesangial matrix expansion, arteriolar hyalinosis, hyaline arteriolar thickening, total inflammation and inflammation in the area of both interstitial fibrosis and tubular atrophy.

Note that the the Banff scoring system has three grades for each lesion : from mild (1) to moderate (2) and severe (3). In each case, the higher the score the worse the outcome, according to the 2018 Reference Guide to the Banff Classification of Renal Allograft Pathology

Outcome measure is assessed 15 days following kidney transplant biopsy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Banff diagnostic categories based on dynamic full-field optical coherence tomography measurement
Time Frame: Outcome measure is assessed 15 days following kidney transplant biopsy
Provide a better understanding of the ability of dynamic full-field optical coherence tomography to identify the usual Banff diagnostic categories comprising normal biopsy (or biopsy with nonspecific changes), biopsy with antibody-mediated changes, biopsy considered borderline or suspicious for acute T cell-mediated rejection, biopsy with T cell-mediated rejection, biopsy with both interstitial fibrosis and tubular atrophy, biopsy with changes not considered to be caused by acute or chronic rejection Note that the Banff Diagnostic Categories form the core of the Banff Classification of Renal Allograft Pathology according the 2018 Reference Guide to the Banff Classification of Renal Allograft Pathology
Outcome measure is assessed 15 days following kidney transplant biopsy

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Dany Anglicheau, Hôpital Necker-Enfants Malades

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 1, 2022

Primary Completion (Actual)

April 30, 2022

Study Completion (Actual)

April 30, 2023

Study Registration Dates

First Submitted

November 14, 2022

First Submitted That Met QC Criteria

November 22, 2022

First Posted (Actual)

December 2, 2022

Study Record Updates

Last Update Posted (Actual)

January 3, 2024

Last Update Submitted That Met QC Criteria

January 1, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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