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Extended Validation of Donor-derived Cell-free DNA in Kidney Transplant Recipients (VALiDATE)
Multinational Study to Evaluate the Performance of Donor-derived Cell-free DNA in Detecting Kidney Allograft Rejection Across Context of Use, Populations, and Injury Phenotypes
This is a multinational, multi-center, observational cohort study.
Kidney allograft rejection is poorly detected by standard-of-care biomarkers. Although dd-cfDNA has been associated with improved rejection detection when added to standard-of-care biomarkers and clinical parameters, little is known about its performance across Banff 2022 rejection phenotypes and injury patterns, in various clinical scenarios and populations, and when measured repeatedly over time.
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Allograft rejection remains a leading cause of kidney transplant failure, and standard-of-care monitoring detects it late.
Recently, combining dd-cfDNA with functional, immunological and clinical parameters has been shown to improve rejection detection under the Banff 2019 framework. However, the Banff 2022 revision formally recognized microvascular inflammation without DSA or C4d (MVI, DSA-negative, C4d-negative) and probable antibody-mediated rejection as distinct rejection phenotypes, raising the question of whether dd-cfDNA can help detecting these phenotypes. Its performance also remains unclear across the broader spectrum of Banff rejection phenotypes and injury patterns, when the complete diagnostic workup is unavailable, in the early post-transplant period, in specific populations, and when measured repeatedly over time.
The investigators therefore aim to evaluate the association between dd-cfDNA and Banff rejection phenotypes and its added diagnostic value to detect them, across the clinical situations in which the biomarker is used.
The study has three objectives:
- To assess the association between dd-cfDNA and Banff 2022 rejection phenotypes and injury patterns, including antibody-mediated, T cell-mediated and mixed rejection, borderline changes, probable antibody-mediated rejection and MVI, DSA-negative, C4d-negative, together with its relationship to the severity of the underlying lesions, with particular attention to microvascular inflammation.
- To assess the diagnostic value of dd-cfDNA, alone and within the integrative dd-cfDNA model, for the detection of biopsy-proven rejection as defined by the Banff 2022 classification, and beyond standard-of-care monitoring.
- To assess whether this performance is maintained across clinical scenarios and populations, including incomplete diagnostic workup, the first month post-transplant, delayed graft function, and specific subpopulations.
Secondarily, the investigators aim to assess whether serial dd-cfDNA improves the detection of rejection, and its prognostic value for death-censored allograft failure.
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studie Locaties
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Leuven, België
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
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São Paulo, Brazilië
- Nephrology Division, Hospital do Rim, Fundação Osvaldo Ramos, Federal University of São Paulo, São Paulo, Brazil
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Berlin, Duitsland
- Department of Nephrology and Internal Intensive Care Medicine, Charité Universitätsmedizin Berlin
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Paris, Frankrijk
- Hopital Necker
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Paris, Frankrijk, 75015
- Department of Nephrology and Dialysis, Hôpital Européen Georges-Pompidou, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
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Paris, Frankrijk
- 11- Pediatric Nephrology Department, Robert-Debré Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
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Paris, Frankrijk
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris;
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Toulouse, Frankrijk
- Department of Nephrology-Dialysis-Transplantation, CHU de Toulouse, Toulouse, France
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Barcelona, Spanje
- Translational Nephrology and Kidney Transplant Research Laboratory, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
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California
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Los Angeles, California, Verenigde Staten, 90048
- Department of Medicine, Division of Nephrology, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Los Angeles, California, Verenigde Staten, 90048
- Department of Pediatrics, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.
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Los Angeles, California, Verenigde Staten, 90095
- Division of Nephrology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Florida
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Tampa, Florida, Verenigde Staten, 33606
- Department of Nephrology, Tampa General Hospital, Tampa, FL, USA
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Georgia
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Atlanta, Georgia, Verenigde Staten, 30322
- Division of Pediatric Nephrology, Emory University School of Medicine, Atlanta, GA, USA
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Missouri
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St Louis, Missouri, Verenigde Staten, 63110
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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St Louis, Missouri, Verenigde Staten, 63110
- Division of Pediatric Nephrology, Washington University School of Medicine and St. Louis Children's Hospital, St. Louis, MO, USA
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New York
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New York, New York, Verenigde Staten, 10065
- Division of Nephrology, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY, USA
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Ohio
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Cleveland, Ohio, Verenigde Staten, 44195-0001
- Cleveland Clinic, 2050 East 96th Street, Cleveland, OH
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Texas
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Dallas, Texas, Verenigde Staten, 75390-8856
- Department of Medicine, Division of Nephrology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Utah
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Murray, Utah, Verenigde Staten, 84107
- Transplant Services, Intermountain Medical Center, Murray, UT, USA
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Salt Lake City, Utah, Verenigde Staten, 84132
- Division of Nephrology, Department of Medicine, University of Utah Health, Salt Lake City, UT, USA
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Virginia
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Richmond, Virginia, Verenigde Staten, 23219
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
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Wisconsin
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Madison, Wisconsin, Verenigde Staten, 53705
- Department of Medicine, Division of Nephrology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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Seoul, Zuid -Korea
- Division of Nephrology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
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Geneva, Zwitserland, 1205
- Service de Néphrologie, Département de Médecine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Recipients transplanted from a deceased or living donor
- Kidney allograft biopsy concomitantly with dd-cfDNA measurement
- Written informed consent at the time of transplantation for inclusion the center database
Exclusion Criteria:
- Combined organ transplantation
- Pregnant women
- Grafts from monozygotic twins
- Recipient of a bone marrow transplant
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
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French Cohort
Necker and Saint Louis Hospitals Kidney Transplant Recipients Cohorts
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Cell-free DNA (cfDNA) is fragmented extracellular DNA released in the bloodstream from cells undergoing apoptosis or necrosis.
In transplantation, donor-derived cfDNA (dd-cfDNA) is detected in the blood of kidney recipients and has been proposed as a noninvasive biomarker to detect rejection.
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External Validation Cohort
Multinational cohort comprising transplant centers across Europe, North America, South America and Asia (see involved transplant centres in contacts and locations).
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Cell-free DNA (cfDNA) is fragmented extracellular DNA released in the bloodstream from cells undergoing apoptosis or necrosis.
In transplantation, donor-derived cfDNA (dd-cfDNA) is detected in the blood of kidney recipients and has been proposed as a noninvasive biomarker to detect rejection.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Allograft active injury
Tijdsspanne: Periprocedural (At time of biopsy)
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Antibody-mediated rejection (active or chronic active) T cell-mediated rejection (active or chronic active) Mixed rejection Microvascular Inflammation, DSA-negative, C4d-negative Probable AMR
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Periprocedural (At time of biopsy)
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Allograft loss
Tijdsspanne: Rate of participants reaching graft loss between transplantation and last follow up (up to 10 years post-transplant)
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Return to dialysis or re-transplantation
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Rate of participants reaching graft loss between transplantation and last follow up (up to 10 years post-transplant)
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Medewerkers en onderzoekers
Publicaties en nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Andere studie-ID-nummers
- VALIDATE
Plan Individuele Deelnemersgegevens (IPD)
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