TY - JOUR
T1 - Risk and prognosis of posttransplant lymphoproliferative disease in Epstein-Barr virus–seronegative kidney transplant recipients — an observational cohort study from Norway and western Denmark
AU - Ludvigsen, Lene Ugilt Pagter
AU - Åsberg, Anders
AU - Spetalen, Signe
AU - Sørensen, Mia Dahl
AU - Hamilton-Dutoit, Stephen
AU - Gramkow, Ann Maria
AU - Christiansen, Christian Fynbo
AU - Kro, Grete Birkeland
AU - Thomsen, Marianne Kragh
AU - Ulrichsen, Sinna Pilgaard
AU - Pedersen, Rune Micha
AU - Holte, Harald
AU - Thiesson, Helle Charlotte
AU - Bjerre, Anna
AU - D'Amore, Francesco
AU - Dahle, Dag Olav
AU - Jespersen, Bente
AU - Jensen-Fangel, Søren
AU - Reisæter, Anna Varberg
N1 - Publisher Copyright:
© 2025 The Authors
PY - 2025
Y1 - 2025
N2 - Posttransplant lymphoproliferative disorder (PTLD) poses a serious challenge in kidney transplant recipients. Epstein-Barr virus (EBV)-seronegative recipients have a significantly increased risk of PTLD, but few studies have investigated risk factors for PTLD in EBV-seronegative recipients in the current era of immunosuppression. This cohort study from Norway and western Denmark included first-time kidney transplant recipients between 2007 and 2021 and estimated the cumulative incidence, risk, and prognosis of PTLD. In total, 80 of 5084 recipients developed biopsy-proven PTLD (median follow-up of 6.8 years). Two-year cumulative incidence of PTLD was 7.3% in EBV-seronegative adults and 14.1% in EBV-seronegative children. The age-adjusted hazard ratio (HR) for PTLD was 30.7 (95% CI, 13.9-67.9) in EBV-seronegative vs EBV-seropositive adults and 5.4 (95% CI, 1.1-26.9) in children. Recipients receiving induction therapy with antithymocyte globulin had an increased risk of PTLD (HR, 4.4; 95% CI, 1.8-10.6), while rituximab induction was associated with a lower risk of PTLD (HR, 0.20; 95% CI, 0.03-1.49). The age-adjusted mortality rate was higher in EBV-seronegative recipients with vs without PTLD (HR, 3.3; 95% CI, 1.3-8.3). In conclusion, the risk of PTLD in EBV-seronegative kidney transplant recipients is high in the contemporary era of immunosuppression. Induction therapy should be carefully considered in this high-risk population.
AB - Posttransplant lymphoproliferative disorder (PTLD) poses a serious challenge in kidney transplant recipients. Epstein-Barr virus (EBV)-seronegative recipients have a significantly increased risk of PTLD, but few studies have investigated risk factors for PTLD in EBV-seronegative recipients in the current era of immunosuppression. This cohort study from Norway and western Denmark included first-time kidney transplant recipients between 2007 and 2021 and estimated the cumulative incidence, risk, and prognosis of PTLD. In total, 80 of 5084 recipients developed biopsy-proven PTLD (median follow-up of 6.8 years). Two-year cumulative incidence of PTLD was 7.3% in EBV-seronegative adults and 14.1% in EBV-seronegative children. The age-adjusted hazard ratio (HR) for PTLD was 30.7 (95% CI, 13.9-67.9) in EBV-seronegative vs EBV-seropositive adults and 5.4 (95% CI, 1.1-26.9) in children. Recipients receiving induction therapy with antithymocyte globulin had an increased risk of PTLD (HR, 4.4; 95% CI, 1.8-10.6), while rituximab induction was associated with a lower risk of PTLD (HR, 0.20; 95% CI, 0.03-1.49). The age-adjusted mortality rate was higher in EBV-seronegative recipients with vs without PTLD (HR, 3.3; 95% CI, 1.3-8.3). In conclusion, the risk of PTLD in EBV-seronegative kidney transplant recipients is high in the contemporary era of immunosuppression. Induction therapy should be carefully considered in this high-risk population.
KW - antithymocyte globulin
KW - antiviral prophylaxis
KW - ATG
KW - combined kidney and pancreas transplantation
KW - EBV
KW - Epstein-Barr virus
KW - kidney transplantation
KW - posttransplant lymphoproliferative disease
KW - posttransplant lymphoproliferative disorder
KW - PTLD
KW - rituximab
UR - http://www.scopus.com/inward/record.url?scp=85217933151&partnerID=8YFLogxK
U2 - 10.1016/j.ajt.2025.01.035
DO - 10.1016/j.ajt.2025.01.035
M3 - Journal article
C2 - 39884653
AN - SCOPUS:85217933151
SN - 1600-6135
JO - American Journal of Transplantation
JF - American Journal of Transplantation
ER -