PMID- 35669972 OWN - NLM STAT- MEDLINE DCOM- 20220608 LR - 20220716 IS - 1432-2277 (Electronic) IS - 0934-0874 (Print) IS - 0934-0874 (Linking) VI - 35 DP - 2022 TI - Alloimmune Risk Stratification for Kidney Transplant Rejection. PG - 10138 LID - 10.3389/ti.2022.10138 [doi] LID - 10138 AB - Different types of kidney transplantations are performed worldwide, including biologically diverse donor/recipient combinations, which entail distinct patient/graft outcomes. Thus, proper immunological and non-immunological risk stratification should be considered, especially for patients included in interventional randomized clinical trials. This paper was prepared by a working group within the European Society for Organ Transplantation, which submitted a Broad Scientific Advice request to the European Medicines Agency (EMA) relating to clinical trial endpoints in kidney transplantation. After collaborative interactions, the EMA sent its final response in December 2020, highlighting the following: 1) transplantations performed between human leukocyte antigen (HLA)-identical donors and recipients carry significantly lower immunological risk than those from HLA-mismatched donors; 2) for the same allogeneic molecular HLA mismatch load, kidney grafts from living donors carry significantly lower immunological risk because they are better preserved and therefore less immunogenic than grafts from deceased donors; 3) single-antigen bead testing is the gold standard to establish the repertoire of serological sensitization and is used to define the presence of a recipient's circulating donor-specific antibodies (HLA-DSA); 4) molecular HLA mismatch analysis should help to further improve organ allocation compatibility and stratify immunological risk for primary alloimmune activation, but without consensus regarding which algorithm and cut-off to use it is difficult to integrate information into clinical practice/study design; 5) further clinical validation of other immune assays, such as those measuring anti-donor cellular memory (T/B cell ELISpot assays) and non-HLA-DSA, is needed; 6) routine clinical tests that reliably measure innate immune alloreactivity are lacking. CI - Copyright (c) 2022 Bestard, Thaunat, Bellini, Bohmig, Budde, Claas, Couzi, Furian, Heemann, Mamode, Oberbauer, Pengel, Schneeberger and Naesens. FAU - Bestard, Oriol AU - Bestard O AD - Department of Nephrology and Kidney Transplantation, Vall d'Hebron University Hospital, Barcelona, Spain. FAU - Thaunat, Olivier AU - Thaunat O AD - Department of Transplantation, Nephrology, and Clinical Immunology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France. FAU - Bellini, Maria Irene AU - Bellini MI AD - Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy. FAU - Bohmig, Georg A AU - Bohmig GA AD - Department of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria. FAU - Budde, Klemens AU - Budde K AD - Department of Nephrology and Medical Intensive Care, Charite Universitatsmedizin Berlin, Berlin, Germany. FAU - Claas, Frans AU - Claas F AD - Eurotransplant Reference Laboratory, Department of Immunology, Leiden University Medical Center, Leiden, Netherlands. FAU - Couzi, Lionel AU - Couzi L AD - Department of Nephrology, Transplantation and Dialysis, Bordeaux University Hospital, Bordeaux, France. FAU - Furian, Lucrezia AU - Furian L AD - Kidney and Pancreas Transplantation Unit, University of Padua, Padua, Italy. FAU - Heemann, Uwe AU - Heemann U AD - Department of Nephrology, Technical University of Munich, Munich, Germany. FAU - Mamode, Nizam AU - Mamode N AD - Department of Transplantation, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom. FAU - Oberbauer, Rainer AU - Oberbauer R AD - Department of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria. FAU - Pengel, Liset AU - Pengel L AD - Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom. FAU - Schneeberger, Stefan AU - Schneeberger S AD - Department of General, Transplant, and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria. FAU - Naesens, Maarten AU - Naesens M AD - Department of Microbiology, Immunology, and Transplantation, KU Leuven, Leuven, Belgium. LA - eng PT - Editorial DEP - 20220520 PL - Switzerland TA - Transpl Int JT - Transplant international : official journal of the European Society for Organ Transplantation JID - 8908516 RN - 0 (HLA Antigens) SB - IM MH - Graft Rejection MH - Graft Survival MH - HLA Antigens MH - Histocompatibility Testing MH - Humans MH - *Kidney Transplantation MH - Living Donors MH - Risk Assessment MH - Tissue Donors PMC - PMC9163827 OTO - NOTNLM OT - alloimmune risk OT - crossmatch OT - high-risk transplantation OT - individualized immunosuppression OT - molecular HLA mismatch COIS- OB has received research funding from Chiesi and served as adviser for Hansa Biopharma. OT has received research funding from bioMerieux, Bristol Myers Squibb, and Immucor; and has consultancy agreements with Biotest and Novartis. GB has received honoraria and/or research funding from Astellas, CareDx, CSL Behring, Fresenius, Hansa, Neovii, and Vitaeris. KB has received honoraria and/or research funding from Alexion, Astellas, Bristol Myers Squibb, Chiesi, Fresenius, Hansa, Hexal, Merck, Novartis, Otsuka, Pfizer, Roche, Sandoz, Siemens, and Veloxis. FC is a scientific adviser for GenDx and Immucor. LF has received honoraria and/or research funding from Astellas, Chiesi, Hansa, and Novartis. UH has received grants/research support from Baxter, Chiesi, and Neovii; speakers' bureaux/honoraria from Chiesi and Hansa; and consulting fees from Astellas, Hansa, Neovii, Novartis, and Teva. NM has received honoraria from Hansa, Chiesi, Novartis, and Takeda. RO has received grants/research support from Amgen, Astellas, and Chiesi; and speakers' bureaux/honoraria from Amgen, Astellas, Chiesi, Hansa, Neovii, Novartis, and Teva. SS has received grants/research support from Bridge to Life, Chiesi, Neovii, Novartis, Organ Recovery Systems, and Sandoz; speakers' bureaux/honoraria from Astellas, BMS, Chiesi, Novartis, OrganOx, and Sanofi; and consulting fees from Astellas, Atara, Merck, NefroHealth, Novartis, Sandoz, and Teva. The remaining authors declare that the work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/06/08 06:00 MHDA- 2022/06/09 06:00 PMCR- 2022/05/20 CRDT- 2022/06/07 02:50 PHST- 2021/10/21 00:00 [received] PHST- 2022/01/26 00:00 [accepted] PHST- 2022/06/07 02:50 [entrez] PHST- 2022/06/08 06:00 [pubmed] PHST- 2022/06/09 06:00 [medline] PHST- 2022/05/20 00:00 [pmc-release] AID - 10138 [pii] AID - 10.3389/ti.2022.10138 [doi] PST - epublish SO - Transpl Int. 2022 May 20;35:10138. doi: 10.3389/ti.2022.10138. eCollection 2022.