Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry

Introduction: Data on age-related differences in rejection rates, infectious episodes, and tacrolimus exposure in pediatric kidney transplant recipients (pKTRs) on a tacrolimus-based immunosuppressive regimen are scarce. Methods: We performed a large-scale analysis of 802 pKTRs from the Cooperative...

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Main Authors: Maral Baghai Arassi, Manuel Feißt, Kai Krupka, Atif Awan, Elisa Benetti, Ali Düzova, Isabella Guzzo, Jon Jin Kim, Birgitta Kranz, Mieczysław Litwin, Jun Oh, Anja Büscher, Lars Pape, Licia Peruzzi, Mohan Shenoy, Sara Testa, Lutz T. Weber, Jakub Zieg, Britta Höcker, Alexander Fichtner, Burkhard Tönshoff
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Kidney International Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468024924019107
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author Maral Baghai Arassi
Manuel Feißt
Kai Krupka
Atif Awan
Elisa Benetti
Ali Düzova
Isabella Guzzo
Jon Jin Kim
Birgitta Kranz
Mieczysław Litwin
Jun Oh
Anja Büscher
Lars Pape
Licia Peruzzi
Mohan Shenoy
Sara Testa
Lutz T. Weber
Jakub Zieg
Britta Höcker
Alexander Fichtner
Burkhard Tönshoff
author_facet Maral Baghai Arassi
Manuel Feißt
Kai Krupka
Atif Awan
Elisa Benetti
Ali Düzova
Isabella Guzzo
Jon Jin Kim
Birgitta Kranz
Mieczysław Litwin
Jun Oh
Anja Büscher
Lars Pape
Licia Peruzzi
Mohan Shenoy
Sara Testa
Lutz T. Weber
Jakub Zieg
Britta Höcker
Alexander Fichtner
Burkhard Tönshoff
author_sort Maral Baghai Arassi
collection DOAJ
description Introduction: Data on age-related differences in rejection rates, infectious episodes, and tacrolimus exposure in pediatric kidney transplant recipients (pKTRs) on a tacrolimus-based immunosuppressive regimen are scarce. Methods: We performed a large-scale analysis of 802 pKTRs from the Cooperative European Paediatric Renal Transplant Initiative (CERTAIN) registry from 40 centers in 14 countries. The inclusion criteria were a tacrolimus-based immunosuppressive regimen and at least 2 years of follow-up. The patient population was divided into 3 age groups (infants and young children aged <6 years, school-aged children 6–12 years, and adolescents aged >12 years) to assess age-related differences in outcome. Results: Median follow-up was 48 months (interquartile range [IQR], 36–72). Within the first 2 years posttransplant, infants, and young children had a significantly higher incidence of infections (80.6% vs. 55.0% in adolescents, P < 0.001) and a significantly higher number of cumulative hospital days (median 13 days vs. 7 days in adolescents, P < 0.001). Adolescents had a significantly higher rate of biopsy-proven acute rejection episodes in the first-year posttransplant (21.7%) than infants and young children (12.6%, P = 0.007). Infants and young children had significantly lower tacrolimus trough levels, lower tacrolimus concentration-to-dose (C/D) ratios as an approximation for higher tacrolimus clearance, and higher tacrolimus interpatient variability (TacIPV) (all P < 0.01) than adolescents. Conclusion: This is the largest study to date in European pKTRs on a tacrolimus-based immunosuppressive regimen, and it shows important age-related differences in rejection rates, infection episodes, as well as tacrolimus exposure and clearance. This data suggests that immunosuppressive therapy in pKTRs should be tailored and personalized according to the age-specific risk profiles of this heterogeneous patient population. The data may serve as a benchmark for future studies with novel immunosuppressive drugs.
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spelling doaj-art-ca6a1b48d17040e08caf0c75fdd127d92025-08-20T03:21:18ZengElsevierKidney International Reports2468-02492024-11-019113265327710.1016/j.ekir.2024.08.025Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN RegistryMaral Baghai Arassi0Manuel Feißt1Kai Krupka2Atif Awan3Elisa Benetti4Ali Düzova5Isabella Guzzo6Jon Jin Kim7Birgitta Kranz8Mieczysław Litwin9Jun Oh10Anja Büscher11Lars Pape12Licia Peruzzi13Mohan Shenoy14Sara Testa15Lutz T. Weber16Jakub Zieg17Britta Höcker18Alexander Fichtner19Burkhard Tönshoff20Department of Pediatrics I, Medical Faculty, Heidelberg University, University Children’s Hospital Heidelberg, Heidelberg, Germany; Structural and Computational Biology Unit, European Molecular Biology Laboratory Heidelberg, Heidelberg, Germany; Correspondence: Maral Baghai Arassi, Department of Pediatrics I, University Children’s Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany.Institute of Medical Biometry, Heidelberg University, Heidelberg, GermanyDepartment of Pediatrics I, Medical Faculty, Heidelberg University, University Children’s Hospital Heidelberg, Heidelberg, GermanyNational Pediatric Haemodialysis Centre and Renal Transplant Unit, Temple Street Children’s University Hospital, Dublin, IrelandPediatric Nephrology Unit, Department of Women’s and Children’s Health, Padua University Hospital, ItalyDivision of Pediatric Nephrology, Hacettepe University Faculty of Medicine, Ankara, TürkiyeDivision of Nephrology, Dialysis and Transplant Unit, Bambino Gesù Children’s Hospital, IRCCS, Rome, ItalyDepartment of Pediatric Nephrology, Nottingham University Hospitals, Nottingham, UKDepartment of General Pediatrics, University Children’s Hospital Münster, Münster, GermanyDepartment of Nephrology, Kidney Transplantation and Hypertension, The Children's Memorial Health Institute, Warsaw, PolandDivision of Pediatric Nephrology, University Hamburg-Eppendorf, Hamburg, GermanyDepartment of Pediatrics II, University Hospital of Essen, Essen, GermanyDepartment of Pediatrics II, University Hospital of Essen, Essen, GermanyPediatric Nephrology Unit, Regina Margherita Department, Azienda Ospedaliero-Universitaria Città Della Salute e della Scienza, Torino, ItalyDepartment of Pediatric Nephrology, Royal Manchester Children's Hospital, Manchester, UKPediatric Nephrology Unit, Dialysis and Transplantation Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, ItalyPediatric Nephrology, Children's and Adolescents' Hospital, University Hospital of Cologne, Faculty of Medicine, University of Cologne, Köln, GermanyDepartment of Pediatrics, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech RepublicDepartment of Pediatrics I, Medical Faculty, Heidelberg University, University Children’s Hospital Heidelberg, Heidelberg, GermanyDepartment of Pediatrics I, Medical Faculty, Heidelberg University, University Children’s Hospital Heidelberg, Heidelberg, GermanyDepartment of Pediatrics I, Medical Faculty, Heidelberg University, University Children’s Hospital Heidelberg, Heidelberg, GermanyIntroduction: Data on age-related differences in rejection rates, infectious episodes, and tacrolimus exposure in pediatric kidney transplant recipients (pKTRs) on a tacrolimus-based immunosuppressive regimen are scarce. Methods: We performed a large-scale analysis of 802 pKTRs from the Cooperative European Paediatric Renal Transplant Initiative (CERTAIN) registry from 40 centers in 14 countries. The inclusion criteria were a tacrolimus-based immunosuppressive regimen and at least 2 years of follow-up. The patient population was divided into 3 age groups (infants and young children aged <6 years, school-aged children 6–12 years, and adolescents aged >12 years) to assess age-related differences in outcome. Results: Median follow-up was 48 months (interquartile range [IQR], 36–72). Within the first 2 years posttransplant, infants, and young children had a significantly higher incidence of infections (80.6% vs. 55.0% in adolescents, P < 0.001) and a significantly higher number of cumulative hospital days (median 13 days vs. 7 days in adolescents, P < 0.001). Adolescents had a significantly higher rate of biopsy-proven acute rejection episodes in the first-year posttransplant (21.7%) than infants and young children (12.6%, P = 0.007). Infants and young children had significantly lower tacrolimus trough levels, lower tacrolimus concentration-to-dose (C/D) ratios as an approximation for higher tacrolimus clearance, and higher tacrolimus interpatient variability (TacIPV) (all P < 0.01) than adolescents. Conclusion: This is the largest study to date in European pKTRs on a tacrolimus-based immunosuppressive regimen, and it shows important age-related differences in rejection rates, infection episodes, as well as tacrolimus exposure and clearance. This data suggests that immunosuppressive therapy in pKTRs should be tailored and personalized according to the age-specific risk profiles of this heterogeneous patient population. The data may serve as a benchmark for future studies with novel immunosuppressive drugs.http://www.sciencedirect.com/science/article/pii/S2468024924019107allograft rejectionhospitalizationinfectionpediatric kidney transplantationtacrolimus
spellingShingle Maral Baghai Arassi
Manuel Feißt
Kai Krupka
Atif Awan
Elisa Benetti
Ali Düzova
Isabella Guzzo
Jon Jin Kim
Birgitta Kranz
Mieczysław Litwin
Jun Oh
Anja Büscher
Lars Pape
Licia Peruzzi
Mohan Shenoy
Sara Testa
Lutz T. Weber
Jakub Zieg
Britta Höcker
Alexander Fichtner
Burkhard Tönshoff
Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
Kidney International Reports
allograft rejection
hospitalization
infection
pediatric kidney transplantation
tacrolimus
title Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
title_full Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
title_fullStr Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
title_full_unstemmed Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
title_short Age-Related Differences in Rejection Rates, Infections, and Tacrolimus Exposure in Pediatric Kidney Transplant Recipients in the CERTAIN Registry
title_sort age related differences in rejection rates infections and tacrolimus exposure in pediatric kidney transplant recipients in the certain registry
topic allograft rejection
hospitalization
infection
pediatric kidney transplantation
tacrolimus
url http://www.sciencedirect.com/science/article/pii/S2468024924019107
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