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.
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
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.
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Kontakte und Standorte
Studienorte
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Leuven, Belgien
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
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São Paulo, Brasilien
- Nephrology Division, Hospital do Rim, Fundação Osvaldo Ramos, Federal University of São Paulo, São Paulo, Brazil
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Berlin, Deutschland
- Department of Nephrology and Internal Intensive Care Medicine, Charité Universitätsmedizin Berlin
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Paris, Frankreich
- Hopital Necker
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Paris, Frankreich, 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, Frankreich
- 11- Pediatric Nephrology Department, Robert-Debré Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
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Paris, Frankreich
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris;
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Toulouse, Frankreich
- Department of Nephrology-Dialysis-Transplantation, CHU de Toulouse, Toulouse, France
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Geneva, Schweiz, 1205
- Service de Néphrologie, Département de Médecine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
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Barcelona, Spanien
- Translational Nephrology and Kidney Transplant Research Laboratory, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
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Seoul, Südkorea
- Division of Nephrology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
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California
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Los Angeles, California, Vereinigte Staaten, 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, Vereinigte Staaten, 90048
- Department of Pediatrics, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.
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Los Angeles, California, Vereinigte Staaten, 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, Vereinigte Staaten, 33606
- Department of Nephrology, Tampa General Hospital, Tampa, FL, USA
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Georgia
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Atlanta, Georgia, Vereinigte Staaten, 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, Vereinigte Staaten, 63110
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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St Louis, Missouri, Vereinigte Staaten, 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, Vereinigte Staaten, 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, Vereinigte Staaten, 44195-0001
- Cleveland Clinic, 2050 East 96th Street, Cleveland, OH
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Texas
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Dallas, Texas, Vereinigte Staaten, 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, Vereinigte Staaten, 84107
- Transplant Services, Intermountain Medical Center, Murray, UT, USA
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Salt Lake City, Utah, Vereinigte Staaten, 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, Vereinigte Staaten, 23219
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
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Wisconsin
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Madison, Wisconsin, Vereinigte Staaten, 53705
- Department of Medicine, Division of Nephrology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Kind
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Anzahl der Gruppen / Kohorten
Kohorten und Interventionen
Gruppe / KohorteGruppe / Kohorte |
Intervention / BehandlungIntervention / Behandlung |
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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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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Allograft active injury
Zeitfenster: 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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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Allograft loss
Zeitfenster: 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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Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Publikationen und hilfreiche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
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