A Collaborative & Global Research Initiative

TRINITY

Transplant Research Innovation — International Network — Data Initiative

Harmonizing clinical, histological, immunological, virological and molecular data from patient populations worldwide — to advance precision medicine in solid organ transplantation.

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Latest Meeting · ASN Kidney Week 2026

The TRINITY Dinner
in Denver

Date
21 Oct. 2026Biannual meeting
City
DenverColorado, USA
During
Kidney WeekAmerican Society of Nephrology

Investigators and partners met over dinner at ASN Kidney Week for the consortium's biannual meeting on network and project advances: results from the BK polyomavirus, recurrence (PRECISE-RGN) and early dd-cfDNA studies, the 2027 research roadmap, and a first-hand account from UT Southwestern Medical Center on joining TRINITY as a large Texas center.

Since 2025
4TRINITY meetings
Shared cohorts
22K+American patients
Published
4Peer-reviewed papers
TRINITY logo crest
Save the date · Next meeting
TRINITY Consortium Dinner
at the American Transplant Congress 2027

Congress5–9 June 2027
WhereSeattle, WA
OccasionATC 2027
DinnerDate to be announced
Register your interest
Where we last gathered

Highlights from previous TRINITY meetings

Our Mission

Moving transplant care from reactive management toward precision-guided surveillance.

Despite advances in immunosuppression, kidney transplant recipients still face significant risks from rejection, viral infection, disease recurrence and graft failure. Early detection and accurate risk stratification remain unmet needs.

Single-center studies, while foundational, cannot account for the heterogeneity in immunological risk, immunosuppressive strategies and clinical practice that exists across transplant populations worldwide. TRINITY was established to close this gap — building a shared, evolving research infrastructure that enables multicenter validation at scale.

Researchers collaborating around transplant data visualizations
The Network

An unprecedented scale of harmonized, real‑world evidence.

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Academic Centers
0
Countries
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Continents
0K+
Patients
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Harmonized Variables
World map showing 50+ TRINITY transplant centers as connected nodes
Europe
France · Belgium · Croatia ·
Spain · Switzerland · Germany ·
Finland · Italy
Americas
USA · Brazil · Chile · Argentina
Canada
Asia
Republic of Korea · Japan
Oceania
Australia
Active Science

Four areas of investigation on one shared infrastructure.

Each project operates on the same harmonized datalake, with distinct scientific objectives and data requirements. Three flagship studies are under way: BK polyomavirus, PRECISE-RGN and early dd-cfDNA.

01 · Prognostication Abstract visualization of an allograft survival risk model

Extended validation of the iBox system

A prognostic system for kidney allograft failure, integrating eGFR, proteinuria, histology and immunology. Already validated across seven countries and randomized trials; TRINITY extends it to new centers and populations, including North American and African-American validation cohorts.

8,683
Recipients · validation cohort
2,570
North American recipients
02 · Biomarker Donor-derived cell-free DNA strands over a kidney biopsy

Donor-derived cell-free DNA

A non-invasive biomarker of graft injury. TRINITY validates the dd-cfDNA model across cohorts and evaluates its association with Banff 2022 microvascular inflammation phenotypes and early post-transplant settings. A prospective, IRB-approved study of serial dd-cfDNA in the first month post-transplant is starting at five US centers, coordinated by Duke University.

7,103
Biopsies paired with dd-cfDNA
5,256
Recipients
03 · Virology BK polyomavirus particles and longitudinal viral-load curves

BK polyomavirus

One of the largest international BK cohorts in kidney transplantation — integrating viral loads with biopsy findings, dd-cfDNA and outcomes to identify risk factors and build progression-risk tools. Twenty-four centers in six countries study viral trajectories, clearance and rebound.

19,652
Recipients
315,549
BK viral loads
24
Centers
04 · Recurrence Histology montage of recurrent native kidney disease

Recurrence of native disease

An undercharacterized contributor to graft loss. Kidney transplant recipients made up only 0.3% of participants in recent pivotal trials of new native-disease drugs. The PRECISE-RGN study defines the natural history of recurrence across IgA nephropathy, FSGS, membranous and membranoproliferative disease, and tests proteinuria as a surrogate endpoint after transplant. Final analyses are expected in Q1 2027.

650
Biopsy-proven recurrences
19,351
Recipients
Portrait of Pr. Alexandre Loupy, MD PhD
Principal Investigator

Alexandre Loupy, MD, PhD

Head of the PITOR Institute

Pr. Loupy's research focuses on the development and validation of prognostic models and molecular biomarkers in kidney transplantation. He led the development of the iBox system and the large-scale evaluation of dd-cfDNA for rejection detection.

TRINITY's coordination — data harmonization, quality control and analytical planning — is centrally managed at the Paris Institute for Transplantation & Organ Regeneration. The initiative convenes biannually to review results and define research priorities.

ERC Consolidator Grant 2023 iBox · BMJ 2019 dd-cfDNA · Nature Medicine 2024
The Consortium

The institutions & investigators behind TRINITY.

A growing community of academic transplant centers and the people who drive the science forward.

Member Institutions
PITOR Institute · Paris
AP-HP · Paris
University of Alberta · Edmonton
CHU Grenobles · Grenoble
CHU Montpellier · Montpellier
CHU Toulouse · Toulouse
Cedars Sinai · Los Angeles
Cleveland Clinic · Cleveland
Hospital Do Rim · Sao Paulo
Duke · Durham
ECMC · Buffalo
Emory University · Atlanta
Foch Hospital · Paris
Georgetown · Washington
Hackensack · New Jersey
Helsinki University Hospital
Intermountain · Salt Lake City
KUMC · Kansas City
MGH · Boston
Medical College of Wisconsin · Milwaukee
Mayo Clinic · Jacksonville
Miami Transplant Institute · Miami
NYU Langone · New York
Necker Hospital • Paris
University of Pennsylvania · Philadelphia
São Paulo Hospital · Sao Paulo
University of Sarajevo · Sarajevo
Sharp Grossmont · La Mesa
Sorbonne (& Tenon & Pitié-Salpêtrière) · Paris
Saint-Louis (& Bichat) · Paris
Tokyo Women's Hospital · Tokyo
Tampa General · Tampa
Tufts Medical Center · Boston
UCLA · Los Angeles
UCSF · San Francisco
USC Hospital · Los Angeles
University of Texas Southwestern · Dallas
University of Wisconsin · Madison
University of Utah · Utah
Virginia Commonwealth University · Richmond
Vanderbilt · Nashville
Washington University · Saint-Louis
Yonsei University · Seoul
University of Zagreb · Zagreb
Temple · Philadelphia
Weill Cornell Hospital · New York
Robert-Debré Hospital · Paris
KU Leuven · Leuven
Investigators & Collaborators
Alexandre Loupy
Alexandre Loupy
Professor of Nephrology & Epidemiology · PITOR
Tarek Alhamad
Tarek Alhamad
Associate Professor of Medicine · Wash U
Nicole Ali
Nicole Ali
Transplant nephrologist · NYU
Rajendra Baliga
Rajendra Baliga
Medical Director, Kidney & Pancreas Transplant Program · Tampa
Arpita Basu
Arpita Basu
Assistant Professor of Medicine · Emory
Christian Bolanos
Christian Bolanos
Transplant nephrologist · Tampa General Hospital / Florida
Dan Brennan
Dan Brennan
Professor of Nephrology · Johns Hopkins
Nadiesda Costa
Nadiesda Costa
Transplant nephrologist · Georgetown
David Cucchiari
David Cucchiari
Nephrologist · Hospital Clinic Barcelona/ Brigham and Women's Hospital
Darshana Dadhania
Darshana Dadhania
Associate Professor of Medicine · Cornell
Gillian Divard
Gillian Divard
Transplant nephrologist · Hôpital Saint-Louis (AP-HP) & PITOR; Chief Medical Officer · Okeiro
Arman Faravardeh
Arman Faravardeh
Transplant nephrologist · SHARP
Gustavo Ferreira
Gustavo Ferreira
Nephrologist · Brazil registry
John Friedewald
John Friedewald
Professor of Medicine & Surgery · Northwestern
Alessia Giarraputo
Alessia Giarraputo
Post-doctoral researcher · MGH & PITOR
Reginald Gohh
Reginald Gohh
Transplant nephrologist · Georgetown
Michael J. Goldstein, MD
Michael J. Goldstein
Director, Division of Organ Transplantation · Hackensack
Simon Gressens
Simon Gressens
Infectious Diseases / Immunology, Hôpital Saint-Louis (AP-HP) & PITOR
Giselle Guerra
Giselle Guerra
Professor of Clinical Medicine & Surgery · Miami
Abdolreza Haririan
Abdolreza Haririan
Professor of Medicine (Nephrology) · Maryland
Ilkka Helanterä
Ilkka Helanterä
Transplant nephrologist · Helsinki university
Julien Hogan
Julien Hogan
Professor, Pediatric nephrologist · Robert-Debre Hospital, AP-HP & PITOR
Petra Hruba
Petra Hruba
Researcher · CZ registry
Dr. Ajay Israni
Ajay Israni
Professor & Chair of Internal Medicine · UTMB
Paresh Jadav
Paresh Jadav
Transplant nephrologist · Memorial Hermann
Ivana Juric
Ivana Juric
Transplant nephrologist · PITOR
Liise Kayler
Liise Kayler
Clinical Professor of Surgery & Chief, Division of Transplant Surgery · ECMC
Allan Kirk
Allan Kirk
David C. Sabiston Jr. Distinguished Professor of Surgery · Duke
Kateryna Krynychka
Kateryna Krynychka
Post-doctoral researcher with Allan Kirk · Duke
Dhiren Kumar
Dhiren Kumar
Associate Professor of Medicine, transplant nephrology · VCU
Christian Larsen
Christian Larsen
Professor of Surgery · Emory
Juhan Lee
Juhan Lee
Transplant surgeon · Yonsei University
Carmen Lefaucheur
Carmen Lefaucheur
Professor of Nephrology · PITOR
Bonnie Lonze
Bonnie Lonze
Associate Professor of Surgery · NYU
Hector Madariaga
Hector Madariaga
Transplant nephrologist · Tufts
Didier Mandelbrot
Didier Mandelbrot
Professor of Medicine; transplant nephrologist · Wisconsin
Massimo Mangiola
Massimo Mangiola
Clinical Associate Professor (Pathology) · NYU
Raphael Meier
Raphael Meier
Liver/kidney/pancreas & hepatobiliary transplant surgeon-scientist · Maryland
christina mejia
christina Mejia
Assistant Professor of Medicine · Johns Hopkins
Muhammad  Mohiuddin
Muhammad Mohiuddin
Professor of Surgery · Maryland
Miklos Molnar
Miklos Molnar
Professor, transplant nephrology · Utah (Rochester)
Robert A Montgomery
Robert A Montgomery
Chair, Dept. of Surgery & Director · NYU
Sandesh Parajuli
Sandesh Parajuli
Associate Professor of Medicine, transplant nephrology · Wisconsin
Anita Patel
Anita Patel
Transplant nephrologist · Henry Ford
Vishnu Potluri
Vishnu Potluri
Assistant Professor of Medicine · U Penn
Evgenia Preka
Evgenia Preka
Pediatric nephrologist · Necker-Enfants Malades Hospital, AP-HP & PITOR
Yasir Qazi
Yasir Qazi
Associate Professor of Clinical Medicine · Saint Joseph
Peter Reese
Peter Reese
Professor of Medicine & Epidemiology · Vanderbilt
Leonardo RIella
Leonardo RIella
Harold & Ellen Danser Endowed Chair in Transplantation · MGH
Deirdre Sawinski
Deirdre Sawinski
Assistant Professor of Medicine (interim) · Cornell
Puneet Sood
Puneet Sood
Transplant nephrologist · UCSF
Robert Stratta
Robert Stratta
Professor of Surgery · Wake Health
Ondrej Viklicky
Ondrej Viklicky
Professor of Nephrology · CZ registry
Hani Wadei
Hani Wadei
Professor of Medicine; transplant nephrologist · Mayo Jacksonville
Changxi Wang
Changxi Wang
Professor and Director · Sun Yat-Sen University
David Wojciechowski
David Wojciechowski
Professor of Internal Medicine (Nephrology) · UT Southwestern
Anju Yadav MD FASN FAST
Anju Yadav
Transplant nephrologist · Johns Hopkins
Helix Zhang
Helix Zhang
Transplant Surgeon · Sun Yat-Sen University

Join TRINITY.

Centers interested in joining, or contributing data to specific projects, are warmly invited to contact the coordinating team. Investigators may also propose new research projects aligned with the consortium's scientific priorities. TRINITY provides multicenter scientific coordination, support with IRB and data extraction, curation, quality control and statistics, and manuscript coordination.

Paris Institute for Transplantation
& Organ Regeneration (PITOR)
INSERM - Institut National de la Santé et de la Recherche Médicale
Assistance Publique – Hôpitaux de Paris
Université Paris Cité - UPC
75015 Paris, France