PMID- 31990685 OWN - NLM STAT- MEDLINE DCOM- 20210126 LR - 20210126 IS - 1558-8238 (Electronic) IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 130 IP - 5 DP - 2020 May 1 TI - Phase I trial of donor-derived modified immune cell infusion in kidney transplantation. PG - 2364-2376 LID - 133595 [pii] LID - 10.1172/JCI133595 [doi] AB - BACKGROUNDPreclinical experiments have shown that donor blood cells, modified in vitro by an alkylating agent (modified immune cells [MICs]), induced long-term specific immunosuppression against the allogeneic donor.METHODSIn this phase I trial, patients received either 1.5 x 106 MICs per kg BW on day -2 (n = 3, group A), or 1.5 x 108 MICs per kg BW on day -2 (n = 3, group B) or day -7 (n = 4, group C) before living donor kidney transplantation in addition to post-transplantation immunosuppression. The primary outcome measure was the frequency of adverse events (AEs) until day 30 (study phase) with follow-up out to day 360.RESULTSMIC infusions were extremely well tolerated. During the study phase, 10 treated patients experienced a total of 69 AEs that were unlikely to be related or not related to MIC infusion. No donor-specific human leukocyte antigen Abs or rejection episodes were noted, even though the patients received up to 1.3 x 1010 donor mononuclear cells before transplantation. Group C patients with low immunosuppression during follow-up showed no in vitro reactivity against stimulatory donor blood cells on day 360, whereas reactivity against third-party cells was still preserved. Frequencies of CD19+CD24hiCD38hi transitional B lymphocytes (Bregs) increased from a median of 6% before MIC infusion to 20% on day 180, which was 19- and 68-fold higher, respectively, than in 2 independent cohorts of transplanted controls. The majority of Bregs produced the immunosuppressive cytokine IL-10. MIC-treated patients showed the Immune Tolerance Network operational tolerance signature.CONCLUSIONMIC administration was safe and could be a future tool for the targeted induction of tolerogenic Bregs.TRIAL REGISTRATIONEudraCT number: 2014-002086-30; ClinicalTrials.gov identifier: NCT02560220.FUNDINGFederal Ministry for Economic Affairs and Technology, Berlin, Germany, and TolerogenixX GmbH, Heidelberg, Germany. FAU - Morath, Christian AU - Morath C AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. AD - TolerogenixX GmbH, Heidelberg, Germany. FAU - Schmitt, Anita AU - Schmitt A AD - TolerogenixX GmbH, Heidelberg, Germany. AD - Department of Hematology, Oncology and Rheumatology. FAU - Kleist, Christian AU - Kleist C AD - Transplantation Immunology, Institute of Immunology. AD - Department of Nuclear Medicine. FAU - Daniel, Volker AU - Daniel V AD - Transplantation Immunology, Institute of Immunology. FAU - Opelz, Gerhard AU - Opelz G AD - Transplantation Immunology, Institute of Immunology. FAU - Susal, Caner AU - Susal C AD - Transplantation Immunology, Institute of Immunology. FAU - Ibrahim, Eman AU - Ibrahim E AD - Transplantation Immunology, Institute of Immunology. FAU - Kalble, Florian AU - Kalble F AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. FAU - Speer, Claudius AU - Speer C AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. FAU - Nusshag, Christian AU - Nusshag C AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. FAU - Pego da Silva, Luiza AU - Pego da Silva L AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. AD - TolerogenixX GmbH, Heidelberg, Germany. FAU - Sommerer, Claudia AU - Sommerer C AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. FAU - Wang, Lei AU - Wang L AD - TolerogenixX GmbH, Heidelberg, Germany. AD - Department of Hematology, Oncology and Rheumatology. FAU - Ni, Ming AU - Ni M AD - Department of Hematology, Oncology and Rheumatology. FAU - Huckelhoven-Krauss, Angela AU - Huckelhoven-Krauss A AD - Department of Hematology, Oncology and Rheumatology. FAU - Czock, David AU - Czock D AD - Department of Clinical Pharmacology and Pharmacoepidemiology. FAU - Merle, Uta AU - Merle U AD - Department of Gastroenterology. FAU - Mehrabi, Arianeb AU - Mehrabi A AD - Department of General, Visceral and Transplantation Surgery. FAU - Sander, Anja AU - Sander A AD - Institute of Medical Biometry and Informatics. FAU - Hackbusch, Matthes AU - Hackbusch M AD - Institute of Medical Biometry and Informatics. FAU - Eckert, Christoph AU - Eckert C AD - Institute of Pathology, and. FAU - Waldherr, Rudiger AU - Waldherr R AD - Institute of Pathology, and. FAU - Schnitzler, Paul AU - Schnitzler P AD - Virology, Center for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany. FAU - Muller-Tidow, Carsten AU - Muller-Tidow C AD - Department of Hematology, Oncology and Rheumatology. FAU - Hoheisel, Jorg D AU - Hoheisel JD AD - Division of Functional Genome Analysis, DKFZ, Heidelberg, Germany. FAU - Mustafa, Shakhawan A AU - Mustafa SA AD - Division of Functional Genome Analysis, DKFZ, Heidelberg, Germany. AD - Kurdistan Institution for Strategic Studies and Scientific Research, Kurdistan Region, Iraq. FAU - Alhamdani, Mohamed Ss AU - Alhamdani MS AD - Division of Functional Genome Analysis, DKFZ, Heidelberg, Germany. FAU - Bauer, Andrea S AU - Bauer AS AD - Division of Functional Genome Analysis, DKFZ, Heidelberg, Germany. FAU - Reiser, Jochen AU - Reiser J AD - Department of Medicine, Rush Medical College, Rush University, Chicago, Illinois, USA. FAU - Zeier, Martin AU - Zeier M AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. FAU - Schmitt, Michael AU - Schmitt M AD - Department of Hematology, Oncology and Rheumatology. FAU - Schaier, Matthias AU - Schaier M AD - Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany. AD - TolerogenixX GmbH, Heidelberg, Germany. FAU - Terness, Peter AU - Terness P AD - Transplantation Immunology, Institute of Immunology. LA - eng SI - ClinicalTrials.gov/NCT02560220 SI - EudraCT/2014-002086-30 PT - Clinical Trial, Phase I PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Immunosuppressive Agents) SB - IM CIN - J Clin Invest. 2020 May 1;130(5):2189-2191. PMID: 32250338 MH - Allografts MH - Female MH - Follow-Up Studies MH - Humans MH - Immunosuppressive Agents/*administration & dosage MH - *Kidney Transplantation MH - *Leukocyte Transfusion MH - Male MH - *Tissue Donors PMC - PMC7190926 OTO - NOTNLM OT - Clinical Trials OT - Tolerance OT - Transplantation COIS- Conflict of interest: CM, A. Schmitt, CK, GO, MZ, M. Schmitt, M. Schaier, and PT, together with the University of Heidelberg, are cofounders of TolerogenixX GmbH, a biotechnology company that holds licenses for modified immune cell (MIC) treatment. CK, GO, and PT hold a patent for MIC treatment ("Immunosuppressive blood cells and methods of producing the same." Patent no. WO 2010/000730, EP 2318020). CM, A. Schmitt, CK, VD, GO, C. Susal, MZ, M. Schmitt, M. Schaier, and PT filed a patent application for MIC treatment ("MIC therapy for specific immunosuppression in transplantation." Patent no. PCT/EP2019/062857). JR is cofounder and shareholder of Trisaq, a biopharmaceutical company that develops novel therapies for kidney diseases. EDAT- 2020/01/29 06:00 MHDA- 2021/01/27 06:00 PMCR- 2020/08/01 CRDT- 2020/01/29 06:00 PHST- 2019/09/23 00:00 [received] PHST- 2020/01/22 00:00 [accepted] PHST- 2020/01/29 06:00 [pubmed] PHST- 2021/01/27 06:00 [medline] PHST- 2020/01/29 06:00 [entrez] PHST- 2020/08/01 00:00 [pmc-release] AID - 133595 [pii] AID - 10.1172/JCI133595 [doi] PST - ppublish SO - J Clin Invest. 2020 May 1;130(5):2364-2376. doi: 10.1172/JCI133595.