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Eculizumab transplant

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https://www.readbyqxmd.com/read/29417722/is-there-a-case-for-eculizumab-for-pediatric-renal-transplantation
#1
EDITORIAL
Guido Filler, Christoph Licht, Shih-Han Susan Huang
No abstract text is available yet for this article.
February 7, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29407333/eculizumab-for-prevention-of-antibody-mediated-rejection-in-blood-group-incompatible-renal-transplantation
#2
P West-Thielke, K Progar, M Campara, N Jasiak, L Gallon, I Tang, M Spaggiari, I Tzvetanov, E Benedetti
Antibody-mediated rejection (AMR) is one of the leading causes of allograft failure especially in patients undergoing ABO-incompatible (ABOi) renal transplantation. We hypothesized that complement inhibition with eculizumab, a C5 inhibitor, would protect against AMR and maintain graft function in ABOi renal transplant recipients. Four patients undergoing living donor kidney transplant from ABOi donors were treated with a 9-week eculizumab course without therapeutic plasma exchange, intravenous immunoglobulin, or splenectomy...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29377474/a-prospective-randomized-controlled-trial-of-eculizumab-to-prevent-ischemia-reperfusion-injury-in-pediatric-kidney-transplantation
#3
Michael Kaabak, Nadeen Babenko, Ron Shapiro, Allan Zokoyev, Olga Dymova, Edward Kim
Ischemia-reperfusion injury has multiple effects on a transplanted allograft, including delayed or impaired graft function, compromised long-term survival, and an association with an increased incidence of rejection. Eculizumab, a monoclonal antibody blocking terminal complement activation, has been postulated to be an effective agent in the prevention or amelioration of IRI. We performed a single-center prospective, randomized controlled trial involving 57 pediatric kidney transplant recipients between 2012 and 2016...
January 29, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29370420/c3-glomerulonephritis-secondary-to-mutations-in-factors-h-and-i-rapid-recurrence-in-deceased-donor-kidney-transplant-effectively-treated-with-eculizumab
#4
Neetika Garg, Yuzhou Zhang, Anne Nicholson-Weller, Eliyahu V Khankin, Nicolò Ghiringhelli Borsa, Nicole C Meyer, Susan McDermott, Isaac E Stillman, Helmut G Rennke, Richard J Smith, Martha Pavlakis
Background: C3 glomerulonephritis (C3GN) is caused by alternate complement pathway over-activation. It frequently progresses to end-stage renal disease, recurs in two-thirds of transplants and in half of these cases progresses to allograft loss. There is currently no proven treatment for C3GN. Case Presentation: We describe a family segregating pathogenic alleles of complement factor H and I (CFH and CFI). The only member carrying both mutations developed C3GN. Prolonged delayed graft function after deceased donor transplantation, heavy proteinuria and isolated C3 hypocomplementemia prompted an allograft biopsy confirming diagnosis of recurrent C3GN...
January 23, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29322327/combined-and-sequential-liver-kidney-transplantation-in-children
#5
Ryszard Grenda, Piotr Kaliciński
Combined and sequential liver-kidney transplantation (CLKT and SLKT) is a definitive treatment in children with end-stage organ failure. There are two major indications: - terminal insufficiency of both organs, or - need for transplanting new liver as a source of lacking enzyme or specific regulator of the immune system in a patient with renal failure. A third (uncommon) option is secondary end-stage renal failure in liver transplant recipients. These three clinical settings use distinct qualification algorithms...
January 10, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29315141/the-treatment-of-antibody-mediated-rejection-in-kidney-transplantation-an-updated-systematic-review-and-meta-analysis
#6
Susan S Wan, Tracey D Ying, Kate Wyburn, Darren M Roberts, Melanie Wyld, Steven J Chadban
BACKGROUND: Current treatments for antibody-mediated rejection (AMR) in kidney transplantation are based on low-quality data from a small number of controlled trials. Novel agents targeting B-cells, plasma-cells and the complement system have featured in recent studies of AMR. METHODS: We conducted a systematic review and meta-analysis of controlled trials in kidney transplant recipients using Medline, EMBASE and CENTRAL from inception to February 2017. RESULTS: Of 14,380 citations we identified 21 studies, including 10 randomized controlled trials, involving 751 participants...
January 8, 2018: Transplantation
https://www.readbyqxmd.com/read/29296809/in-vitro-evidence-of-complement-activation-in-transplantation-associated-thrombotic-microangiopathy
#7
Seth J Rotz, Nathan Luebbering, Bradley P Dixon, Eleni Gavriilaki, Robert A Brodsky, Christopher E Dandoy, Sonata Jodele, Stella M Davies
Transplantation-associated thrombotic microangiopathy is associated with complement activation in vitro.This data further supports the use of eculizumab for the treatment of patients with TA-TMA.
September 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29225802/effective-immunosuppressive-management-with-belatacept-and-eculizumab-in-post-transplant-ahus-due-to-a-homozygous-deletion-of-cfhr1-cfhr3-and-the-presence-of-cfh-antibodies
#8
Johannes Münch, Anette Bachmann, Maik Grohmann, Christof Mayer, Michael Kirschfink, Tom H Lindner, Carsten Bergmann, Jan Halbritter
Atypical haemolytic uraemic syndrome (aHUS) may clinically present as acute renal graft failure resulting from excessive activation of the complement cascade. While mutations of complement-encoding genes predispose for aHUS, it is generally thought to require an additional insult (e.g. drugs) to trigger and manifest the full-blown clinical syndrome. Calcineurin inhibitors (CNIs) used for immunosuppression act as potential triggers, especially in the post-transplantation setting. Therefore, CNI-free immunosuppressive regimens may be beneficial...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29214126/pharmacologic-complement-inhibition-in-clinical-transplantation
#9
REVIEW
Vasishta S Tatapudi, Robert A Montgomery
Purpose of Review: Over the past two decades, significant strides made in our understanding of the etiology of antibody-mediated rejection (AMR) in transplantation have put the complement system in the spotlight. Here, we review recent progress made in the field of pharmacologic complement inhibition in clinical transplantation and aim to understand the impact of this therapeutic approach on outcomes in transplant recipients. Recent Findings: Encouraged by the success of agents targeting the complement cascade in disorders of unrestrained complement activation like paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS), investigators are testing the safety and efficacy of pharmacologic complement blockade in mitigating allograft injury in conditions ranging from AMR to recurrent post-transplant aHUS, C3 glomerulopathies and antiphospholipid anti-body syndrome (APS)...
2017: Current Transplantation Reports
https://www.readbyqxmd.com/read/29199277/the-renaissance-of-complement-therapeutics
#10
REVIEW
Daniel Ricklin, Dimitrios C Mastellos, Edimara S Reis, John D Lambris
The increasing number of clinical conditions that involve a pathological contribution from the complement system - many of which affect the kidneys - has spurred a regained interest in therapeutic options to modulate this host defence pathway. Molecular insight, technological advances, and the first decade of clinical experience with the complement-specific drug eculizumab, have contributed to a growing confidence in therapeutic complement inhibition. More than 20 candidate drugs that target various stages of the complement cascade are currently being evaluated in clinical trials, and additional agents are in preclinical development...
January 2018: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29157988/de-novo-thrombotic-microangiopathy-after-kidney-transplantation
#11
REVIEW
Neetika Garg, Helmut G Rennke, Martha Pavlakis, Kambiz Zandi-Nejad
Thrombotic microangiopathy (TMA) is a serious complication of transplantation that adversely affects kidney transplant recipient and allograft survival. Post-transplant TMA is usually classified into two categories: 1) recurrent TMA and 2) de novo TMA. Atypical hemolytic uremic syndrome (aHUS) resulting from dysregulation and over-activation of the alternate complement pathway is a rare disease but the most common diagnosis associated with recurrence in the allografts. De novo TMA, on the other hand, represents an overwhelming majority of the cases of post-transplant TMA and is a substantially more heterogeneous entity than recurrent aHUS...
November 4, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/29136640/long-term-outcomes-of-the-atypical-hemolytic-uremic-syndrome-after-kidney-transplantation-treated-with-eculizumab-as-first-choice
#12
Luis Gustavo Modelli de Andrade, Mariana Moraes Contti, Hong Si Nga, Ariane Moyses Bravin, Henrique Mochida Takase, Rosa Marlene Viero, Trycia Nunes da Silva, Kelem De Nardi Chagas, Lilian Monteiro Pereira Palma
INTRODUCTION: The treatment of choice for Atypical Hemolytic Uremic Syndrome (aHUS) is the monoclonal antibody eculizumab. The objective of this study was to assess the efficacy and safety of eculizumab in a cohort of kidney transplant patients suffering from aHUS. METHODS: Description of the prospective cohort of all the patients primarily treated with eculizumab after transplantation and divided into the therapeutic (onset of aHUS after transplantation) and prophylactic use (patients with previous diagnosis of aHUS undergoing kidney transplantation)...
2017: PloS One
https://www.readbyqxmd.com/read/29069327/the-role-of-complement-inhibition-in-kidney-transplantation
#13
C Legendre, R Sberro-Soussan, J Zuber, V Frémeaux-Bacchi
Introduction and background: The complement system which belongs to the innate immune system acts both as a first line of defence against various pathogens and as a guardian of host homeostasis. The role of complement has been recently highlighted in several aspects of kidney transplantation: ischaemia-reperfusion, antibody-mediated rejection and native kidney disease recurrence. Sources of data: Experimental data, availability of complement-blocking molecules (mainly the anti-C5 monoclonal antibody, eculizumab) and several trials in human kidney transplant recipients has led to some areas of agreement and some disappointment...
October 21, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29042454/complement-activating-anti-hla-antibodies-in-kidney-transplantation-allograft-gene-expression-profiling-and-response-to-treatment
#14
Carmen Lefaucheur, Denis Viglietti, Luis G Hidalgo, Lloyd E Ratner, Serena M Bagnasco, Ibrahim Batal, Olivier Aubert, Babak J Orandi, Federico Oppenheimer, Oriol Bestard, Paolo Rigotti, Anna V Reisaeter, Nassim Kamar, Yvon Lebranchu, Jean-Paul Duong Van Huyen, Patrick Bruneval, Denis Glotz, Christophe Legendre, Jean-Philippe Empana, Xavier Jouven, Dorry L Segev, Robert A Montgomery, Adriana Zeevi, Philip F Halloran, Alexandre Loupy
Complement-activating anti-HLA donor-specific antibodies (DSAs) are associated with impaired kidney transplant outcome; however, whether these antibodies induce a specific rejection phenotype and influence response to therapy remains undetermined. We prospectively screened 931 kidney recipients for complement-activating DSAs and used histopathology, immunostaining, and allograft gene expression to assess rejection phenotypes. Effector cells were evaluated using in vitro human cell cultures. Additionally, we assessed the effect of complement inhibition on kidney allograft rejection phenotype and the clinical response to complement inhibition in 116 independent kidney recipients with DSAs at transplant receiving rejection prophylaxis with eculizumab or standard of care (plasma exchange and intravenous Ig) at ten international centers...
October 17, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28993886/thrombotic-microangiopathy-following-haematopoietic-stem-cell-transplant
#15
Eleanor G Seaby, Rodney D Gilbert
Thrombotic microangiopathy is a potentially lethal complication of haematopoietic stem cell (bone marrow) transplantation. The pathophysiology is incompletely understood, although endothelial damage appears to be central. Platelet activation, neutrophil extracellular traps and complement activation appear to play key roles. Diagnosis may be difficult and universally accepted diagnostic criteria are not available. Treatment remains controversial. In some cases, withdrawal of calcineurin inhibitors is adequate...
October 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28991129/a-heterozygous-cfhr3-cfhr1-gene-deletion-in-a-pediatric-patient-with-transplant-associated-thrombotic-microangiopathy-who-was-treated-with-eculizumab
#16
Akifumi Nozawa, Michio Ozeki, Tomohiro Hori, Norio Kawamoto, Masahiro Hirayama, Eiichi Azuma, Toshiyuki Fukao
Complement system dysregulation, such as complement Factor H (CFH) autoantibodies and deletions in CFH-related (CFHR) genes 3 and 1, might cause transplant-associated thrombotic microangiopathy (TA-TMA). The use of eculizumab, a terminal complement inhibitor, could be a targeted therapy for TA-TMA. We report a 1-year-old girl who developed TA-TMA, just after autologous peripheral blood stem cell transplantation in neuroblastoma therapy. Eculizumab improved TA-TMA. Investigation for the complement alternative pathway showed a heterozygous CFHR3-CFHR1 gene deletion, which is involved in complement activation...
October 4, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28947259/-hemolytic-and-uremic-syndrome-and-related-thrombotic-microangiopathies-treatment-and-prognosis
#17
C Rafat, P Coppo, F Fakhouri, V Frémeaux-Bacchi, C Loirat, J Zuber, E Rondeau
Major achievements in the understanding of thrombotic microangiopathies (TMA) have not only resulted in a reclassification of TMA but most of all they have culminated in the design of new treatments and have enabled clinicians to better delineate their prognosis. Recent multicenter studies have improved our understanding of the prognosis of atypical hemolytic and uremic syndromes (aHUS). More specifically, they have highlighted the role of genetic testing on predicting the recurrence of aHUS, the risk of chronic kidney disease and the recurrence following kidney transplantation...
December 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28946961/secondary-thrombotic-microangiopathy-and-eculizumab-a-reasonable-therapeutic-option
#18
Elena Román, Santiago Mendizábal, Isidro Jarque, Javier de la Rubia, Amparo Sempere, Enrique Morales, Manuel Praga, Ana Ávila, José Luis Górriz
Understanding the role of the complement system in the pathogenesis of atypical haemolytic uraemic syndrome and other thrombotic microangiopathies (TMA) has led to the use of anti-complement therapy with eculizumab in these diseases, in addition to its original use in patients with paroxysmal nocturnal haemoglobinuria andatypical haemolytic uraemic syndrome. Scientific evidence shows that both primary and secondary TMAs with underlying complement activation are closely related. For this reasons, control over the complement system is a therapeutic target...
September 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28940540/successful-kidney-transplantation-in-a-patient-with-congenital-thrombotic-thrombocytopenic-purpura-upshaw-schulman-syndrome
#19
Hasan Fattah, Dhiren Kumar, James N George, H Davis Massey, Anne L King, Kenneth D Friedman, Gaurav Gupta
BACKGROUND: Congenital thrombotic thrombocytopenic purpura (TTP) may not be recognized until organ failure related to the microvascular thrombosis occurs. Kidney failure may be the initial presenting clinical feature. Kidney transplantation has been contraindicated because of the assumption that the continuing microvascular thrombosis will cause inevitable graft failure. CASE REPORT: We report a 48-year-old nulliparous woman who presented with end-stage kidney disease that was attributed to hypertension...
September 20, 2017: Transfusion
https://www.readbyqxmd.com/read/28894081/eculizumab-in-renal-transplantation-a-2017-update
#20
Ryszard Grenda, Magdalena Durlik
Despite ongoing progress in renal transplantation, there are still emerging challenges in this field, including consequences of ischemia-reperfusion injury (IRI), pre-existing and produced de novo anti-HLA donor-specific antibodies (DSA), and acute/chronic humoral rejection (AMR), as well as the recurrence of atypical hemolytic-uremic syndrome (aHUS) in genetically predisposed patients. All these conditions are related to the prominent role of the complement system and are deleterious to the fate of the renal graft...
September 12, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
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