PMID- 27615506 OWN - NLM STAT- MEDLINE DCOM- 20170804 LR - 20211204 IS - 1399-3062 (Electronic) IS - 1398-2273 (Linking) VI - 18 IP - 6 DP - 2016 Dec TI - Preemptive reduction of immunosuppression upon high urinary polyomavirus loads improves patient survival without affecting kidney graft function. PG - 872-880 LID - 10.1111/tid.12603 [doi] AB - BACKGROUND: Polyomavirus (PV) is a major cause of kidney graft disease. Monitoring by polymerase chain reaction (PCR) on blood is currently recommended. In order to avoid irreversible lesions, we investigated the clinical impact of preemptive reduction of immunosuppression (IS) in kidney transplant recipients (KTR) upon detection of high urinary PV (Upv) load, including BK virus and JC virus. MATERIAL AND METHODS: From 2000 to 2011, in our single center, 789 consecutive KTR were distributed into 4 groups, according to the maximal Upv levels (by PCR) during the first year and the therapeutic option: (A) Upv <10(4) copies (cp)/mL (n=573), (B) >/=10(4) Upv <10(7) cp/mL (n=100), and (C) Upv >/=10(7) cp/mL (n=116); in group C, the IS drug doses were reduced in subgroup Ca (n=102) only, as 14 patients (subgroup Cb) were at risk for graft rejection. RESULTS: The preemptive reduction of IS (group Ca) increased patient survival as compared with all other groups (P<.05), did not modify graft function, and increased graft survival vs group A (risk ratio: 5.7, confidence interval: 1.8-18.1, P=.003). Differences for risk factors are as follows (groups Ca vs A): incidence of human leukocyte antigen (HLA) immunization (>5% panel reactive antibodies): 3% vs 8% (P=.05), number of HLA mismatches: 2.7 vs 2.5 (P=.049), and incidence of acute rejection: 9.8% vs 24.2% (P=.005). PV-associated nephropathy occurred only in group Ca (2% of total grafts) without effect on patient or graft outcome. CONCLUSION: The reduction of IS in patients with high Upv loads is beneficial for patient survival and does not affect graft survival or graft function. CI - (c) 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. FAU - Broeders, Emine Nilufer AU - Broeders EN AUID- ORCID: 0000-0001-5377-9335 AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. FAU - Hamade, Anwar AU - Hamade A AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. FAU - El Mountahi, Fadoua AU - El Mountahi F AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. FAU - Racape, Judith AU - Racape J AD - Research Center of Biostatistics, Epidemiology and Clinical Research, School of Public Health, Universite Libre de Bruxelles, Brussels, Belgium. FAU - Hougardy, Jean-Michel AU - Hougardy JM AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. FAU - Le Moine, Alain AU - Le Moine A AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. FAU - Vereerstraeten, Pierre AU - Vereerstraeten P AD - Department of Nephrology, Dialysis and Transplantation, Cliniques Universitaires de Bruxelles, Hopital Erasme, Brussels, Belgium. LA - eng PT - Comparative Study PT - Journal Article DEP - 20161020 PL - Denmark TA - Transpl Infect Dis JT - Transplant infectious disease : an official journal of the Transplantation Society JID - 100883688 RN - 0 (HLA Antigens) RN - 0 (Immunosuppressive Agents) SB - IM MH - BK Virus/*drug effects/isolation & purification MH - Female MH - Graft Rejection/*epidemiology/immunology/virology MH - Graft Survival/*drug effects MH - HLA Antigens/immunology MH - Humans MH - Immunosuppression Therapy/*adverse effects/methods MH - Immunosuppressive Agents/*administration & dosage/therapeutic use MH - JC Virus/*drug effects/isolation & purification MH - Kidney Diseases/epidemiology/urine/virology MH - Kidney Transplantation/*adverse effects MH - Male MH - Middle Aged MH - Polyomavirus Infections/epidemiology/urine/virology MH - Retrospective Studies MH - Risk Factors MH - Transplant Recipients/statistics & numerical data MH - Treatment Outcome MH - Tumor Virus Infections/epidemiology/urine/virology MH - Viral Load/*drug effects MH - Viremia/*urine/virology OTO - NOTNLM OT - graft function OT - immunosuppression OT - kidney transplantation OT - polyomavirus OT - survival EDAT- 2016/10/21 06:00 MHDA- 2017/08/05 06:00 CRDT- 2016/09/13 06:00 PHST- 2015/12/20 00:00 [received] PHST- 2016/04/16 00:00 [revised] PHST- 2016/05/07 00:00 [revised] PHST- 2016/06/12 00:00 [revised] PHST- 2016/06/29 00:00 [accepted] PHST- 2016/10/21 06:00 [pubmed] PHST- 2017/08/05 06:00 [medline] PHST- 2016/09/13 06:00 [entrez] AID - 10.1111/tid.12603 [doi] PST - ppublish SO - Transpl Infect Dis. 2016 Dec;18(6):872-880. doi: 10.1111/tid.12603. Epub 2016 Oct 20.