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RENAL FIBROSIS clinical trials

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NCT ID: NCT06210555 Not yet recruiting - Clinical trials for Kidney Transplantation

Multiparametric MRI in a Prospective Cohort of Living Kidney Donors, Recipients, and Healthy Controls: Correlations With Markers of Renal Function, Fibrosis and Ageing

MpRenal
Start date: April 1, 2024
Phase:
Study type: Observational

Development of renal fibrosis is the irreversible culmination of various renal diseases and independently predicts adverse outcomes. Currently renal fibrosis can only be diagnosed by performing a renal biopsy. The procedure is invasive and is limited by sampling bias. In recent years there has been a significant development in magnetic resonance imaging (MRI) based techniques. MRI can provide highly detailed anatomical images. Other MRI measures allow quantitative measurements of perfusion, oxygenation, tissue stiffness and diffusion of water molecules within tissue. The combination of several MRI techniques sensitive to different biophysical tissue properties in a single scan session is referred to as multiparametric MRI (mpMRI). Emerging evidence suggests that mpMRI could represent a method for indirect characterization of renal microstructure and extent of fibrosis. So far, studies performed in living kidney donors and recipients have been mostly cross-sectional. For mpMRI to transition to the clinical setting there is a need for validation of MRI-based measures with currently used gold-standard methods for quantifying renal function and fibrosis. The aim of this prospective follow-up study in a cohort of living kidney donors, recipients and healthy controls is to investigate the utility of repeated mpMRI over a period of 2 years. MRI-based measures will be compared to current gold-standard methods for quantifying renal function and fibrosis. The investigators hypothesize that there will be significant correlations between MRI-based measures, renal function determined by precise measurement of glomerular filtration rate and extent of fibrosis determined by renal biopsy. MRI-based measures are expected to be predictive of renal function decline and development of renal fibrosis. This study could provide valuable data that will be helpful in moving the field of renal mpMRI forward, with the goal of providing a novel and non-invasive method for the diagnosis of renal pathology.

NCT ID: NCT03870542 Recruiting - Clinical trials for Kidney Transplant Failure

Multicenter, Prospective Study for Urinary Exosomal Biomarkers of Kidney Allograft Tubulointerstitial Fibrosis

UFO
Start date: May 11, 2019
Phase:
Study type: Observational

The investigators aim to identify urinary exosomal biomarkers that represent the extent of graft fibrosis from deceased donor kidney transplantation. Urinary samples will be collected from deceased kidney donors at the time of procurement and zero-day kidney graft biopsy will be performed at the time of transplant. The association between urinary exosomes and the degree of graft fibrosis will be analyzed to identify biomarkers that represent fibrosis. The correlation between these biomarkers and graft long term outcomes will be investigated.

NCT ID: NCT01613625 Completed - RENAL FIBROSIS Clinical Trials

Interest Of Renal Elastography In Children As A Diagnostic Tool Of Renal Fibrosis: Confrontation To Histological Features Of Renal Biopsies

Start date: February 4, 2011
Phase: N/A
Study type: Interventional

Elastography is a emerging imaging technique that has demonstrated high reliability in the assessment of tissues stiffness and quantification of fibrosis particularly in adult's livers. This ultrasound exploration has no secondary effects. There is no study published in the pediatric population concerning the role of ultrasound elastrography in kidney. The aim of this study is to look for a correlation between the elastography's results and the kidney fibrosis on children who have to undergo a renal biopsy. Elastography may play a potential diagnostic and/or prognostic role in the management of these patients which would limit invasive biopsy procedures.