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Li Q, Kong X, Tian M, Wang J, Yang Z, Yu L, Liu S, Wang C, Wang X, Sun S. Clinical features of children with anti-CFH autoantibody-associated hemolytic uremic syndrome: a report of 8 cases. Ren Fail 2022; 44:1061-1069. [PMID: 35730179 PMCID: PMC9225730 DOI: 10.1080/0886022x.2022.2089167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Objective To explore the clinical characteristics, treatment protocol and prognosis of children with anti-complement factor H (CFH) autoantibody (Ab)-associated hemolytic uremic syndrome (HUS). Methods Clinical data of 8 patients with anti-CFH Ab-associated HUS who were admitted to Shandong Provincial Hospital from January 2011 to December 2020 were collected retrospectively. Results The age at disease onset ranged between 5.83 and 13.5 years, with a male: female ratio of 1.67:1. The time of onset was distributed from May to June and November to December. Digestive and upper respiratory tract infections were common prodromal infections. Positivity for anti-CFH Ab and reduced C3 levels were observed among all patients. Heterozygous mutation of the CHFR5 gene (c.669del A) and homozygous loss of the CFHR1 gene [loss2(EXON:2-6)] were found in two patients. All patients received early treatment with plasma exchange and corticosteroid therapy. Six patients were given immunosuppressive agents (cyclophosphamide and/or mycophenolate mofetil) for persistent proteinuria. The follow-up period was 12–114 months. Four of 8 patients achieved complete remission, 3 achieved partial remission, and 1 died. Relapse occurred in two patients. Conclusion Children with anti-CFH Ab-associated HUS were mainly school-aged and predominantly male, with onset times of summer and winter. Digestive and upper respiratory tract infections were common prodromal infections. Plasma exchange combined with methylprednisolone pulse therapy in the acute phase and cyclophosphamide or mycophenolate mofetil treatment for maintenance can be utilized in children with anti-CFH Ab-associated HUS if eculizumab is not available.
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Affiliation(s)
- Qian Li
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Xinxin Kong
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Minle Tian
- School of Basic Medical Sciences, Shandong First Medical University, Taian, Shandong, China
| | - Jing Wang
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Zhenle Yang
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Lichun Yu
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Suwen Liu
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Cong Wang
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Xiaoyuan Wang
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Shuzhen Sun
- Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P. R. China.,Department of Pediatric Nephrology and Rheumatism and Immunology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan, P. R. China
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Matrat L, Bacchetta J, Ranchin B, Tanné C, Sellier-Leclerc AL. Pediatric atypical hemolytic-uremic syndrome due to auto-antibodies against factor H: is there an interest to combine eculizumab and mycophenolate mofetil? Pediatr Nephrol 2021; 36:1647-1650. [PMID: 33774745 DOI: 10.1007/s00467-021-05025-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Atypical hemolytic and uremic syndrome (aHUS), a thrombotic micro-angiopathy (TMA) caused by deregulation in the complement pathway, is sometimes due to the presence of anti-complement factor H (CFH) auto-antibodies. The "standard" treatment for such aHUS combines plasma exchange therapy and immunosuppressive drugs. Eculizumab, a monoclonal antibody that blocks the terminal pathway of the complement cascade, could be an interesting alternative in association with an immunosuppressive treatment for maintenance regimen. CASE-DIAGNOSIS/TREATMENT We report on two children, diagnosed with mildly severe aHUS due to anti-CFH antibodies, who were treated with the association eculizumab-mycophenolate mofetil (MMF). Neither side effects nor relapses were observed during the 3 years of follow-up; MMF was even progressively tapered and withdrawn successfully in one patient. CONCLUSIONS The association of eculizumab and MMF appears to be an effective and safe option in pediatric cases of aHUS due to anti-CFH antibodies of mild severity.
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Affiliation(s)
- Lucie Matrat
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie Rhumatologie Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, 59 Boulevard Pinel, 69677, Bron Cedex, France.
| | - Justine Bacchetta
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie Rhumatologie Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, 59 Boulevard Pinel, 69677, Bron Cedex, France.,Faculté de Médecine Lyon Est, Université Lyon 1, Lyon, France
| | - Bruno Ranchin
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie Rhumatologie Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, 59 Boulevard Pinel, 69677, Bron Cedex, France
| | - Corentin Tanné
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie Rhumatologie Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, 59 Boulevard Pinel, 69677, Bron Cedex, France.,Faculté de Médecine Lyon Est, Université Lyon 1, Lyon, France.,Service de pédiatrie et néonatalogie, médecine du sport, hôpitaux du pays du Mont-Blanc, Sallanches, France
| | - Anne-Laure Sellier-Leclerc
- Centre de Référence des Maladies Rénales Rares, Service de Néphrologie Rhumatologie Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, 59 Boulevard Pinel, 69677, Bron Cedex, France.
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Raina R, Grewal MK, Radhakrishnan Y, Tatineni V, DeCoy M, Burke LLG, Bagga A. Optimal management of atypical hemolytic uremic disease: challenges and solutions. Int J Nephrol Renovasc Dis 2019; 12:183-204. [PMID: 31564951 PMCID: PMC6732511 DOI: 10.2147/ijnrd.s215370] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022] Open
Abstract
Atypical hemolytic uremic syndrome (aHUS) is a chronic life threatening condition that arises from genetic abnormalities resulting in uncontrolled complement amplifying activity. The introduction of eculizumab, the humanized monoclonal antibody, has brought about a paradigm shift in the management of aHUS. However, there are many knowledge gaps, diagnostic issues, access and cost issues, and patient or physician challenges associated with the use of this agent. Limited data on the natural history of aHUS along with the underlying genetic mutations make it difficult to predict the relapses and thereby raising concerns about the appropriate duration and monitoring of treatment. In this review, we discuss the safety and efficacy of eculizumab in patients with aHUS and its associated challenges.
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Affiliation(s)
- Rupesh Raina
- Department of Nephrology, Akron Children’s Hospital, Akron, OH, USA
- Akron Nephrology Associates, Cleveland Clinic Akron General, Akron, OH, USA
| | - Manpreet K Grewal
- Akron Nephrology Associates, Cleveland Clinic Akron General, Akron, OH, USA
| | | | - Vineeth Tatineni
- Department of Internal Medicine, Summa Health, Akron City Hospital, Akron, OH, USA
| | - Meredith DeCoy
- Atypical Hemolytic Uremic Syndrome Alliance, Cape Elizabeth, ME, USA
| | - Linda LG Burke
- Atypical Hemolytic Uremic Syndrome Alliance, Cape Elizabeth, ME, USA
| | - Arvind Bagga
- Division of Paediatric Nephrology, All India Institute of Medical Sciences, New Delhi, India
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4
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Deville C, Garrouste C, Coppo P, Evrard B, Lautrette A, Heng AE. Efficacy of rituximab and plasmapharesis in an adult patient with antifactor H autoantibody-associated hemolytic uremic syndrome: A case report and literature review. Medicine (Baltimore) 2016; 95:e5007. [PMID: 27684863 PMCID: PMC5265956 DOI: 10.1097/md.0000000000005007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Antifactor H antibody (anti-CFHAb) is found in 6% to 25% cases of atypical hemolytic uremic syndrome (aHUS) in children, but has been only exceptionally reported in adults. There is no consensus about the best treatment for this type of aHUS. We report the case of an adult patient treated successfully with plasma exchange (PE), steroids, and rituximab.A 27-year-old Caucasian male presented to hospital with anemia, thrombocytopenia, and acute renal failure. One week earlier, he had digestive problems with diarrhea. The diagnosis of anti-CFHAb-associated aHUS (82,000 AU/mL) without CFHR gene mutations was established.He received Rituximab 375 mg/m (4 pulses) with PE and steroids. This treatment achieved renal and hematological remission at day (D) 31 and negative anti-CFHAb at D45 (<100 AU/mL). At D76, a fifth rituximab pulse was performed while CD19 was higher than 10/mm. Steroids were stopped at month (M) 9. The patient has not relapsed during long-term follow-up (M39).Rituximab therapy can be considered for anti-CFHAb-associated aHUS. Monitoring of anti-CFHAb titer may help to guide maintenance therapeutic strategies including Rituximab infusion.
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Affiliation(s)
- Clemence Deville
- CHU Clermont-Ferrand, Service de Néphrologie, Pôle REUNNIRH, Clermont-Ferrand
| | - Cyril Garrouste
- CHU Clermont-Ferrand, Service de Néphrologie, Pôle REUNNIRH, Clermont-Ferrand
- Correspondence: Dr Cyril Garrouste, Department of Nephrology, Clermont-Ferrand University Hospital, CHU Gabriel Montpied, 58 Rue Montalembert, 63003 Clermont-Ferrand, France (e-mail: )
| | - Paul Coppo
- CHU Paris Est, Hôpital Saint-Antoine, Service d’Hématologie, AP-HP
- Centre de Référence des Microangiopathies Thrombotiques
- Université Pierre et Marie Curie UPMC Université Paris 6, Paris
| | | | - Alexandre Lautrette
- CHU Clermont-Ferrand, Service de Réanimation, Pôle REUNNIRH, Clermont-Ferrand, France
| | - Anne Elisabeth Heng
- CHU Clermont-Ferrand, Service de Néphrologie, Pôle REUNNIRH, Clermont-Ferrand
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5
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Sahutoglu T, Basturk T, Sakaci T, Koc Y, Ahbap E, Sevinc M, Kara E, Akgol C, Caglayan FB, Unsal A, Daha MR. Can eculizumab be discontinued in aHUS?: Case report and review of the literature. Medicine (Baltimore) 2016; 95:e4330. [PMID: 27495036 PMCID: PMC4979790 DOI: 10.1097/md.0000000000004330] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The management of atypical hemolytic uremic syndrome (aHUS) has evolved into better control of thrombotic microangiopathy (TMA) and recovery of renal functions since the recent introduction of the terminal complement cascade blocker, eculizumab, into clinical use. Better characterization of genotype-phenotype relations has become possible with genetic and clinical studies. However, these advances brought up some important issues, such as the possibility and timing of discontinuation of eculizumab and strategy of follow-up that need to be enlightened. CASE SUMMARY One of our aHUS cases with a novel complement factor H mutation, who developed unusual laboratory findings (thrombocytopenia and mild creatinine elevation without other features of TMA) following discontinuation of eculizumab was presented. Literature and case reports relevant to discontinuation of eculizumab in aHUS patients were reviewed. CONCLUSION Limited experience suggests that the risk of recurrence of TMA following discontinuation of eculizumab is relatively low for patients with MCP mutations, homozygous CFHR3/R1 deletions, anti-CFH antibodies, CFI mutations, and no identifiable mutations, whereas there is a major risk for patients with CFH mutations. Early detection of TMA recurrence and prompt retreatment with eculizumab seem to be efficient in controlling of TMA and restoration of kidney functions.
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Affiliation(s)
- Tuncay Sahutoglu
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
- Correspondence: Tuncay Sahutoglu, Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Halaskargazi Cad. Etfal Sk., 34377 Sisli, Istanbul, Turkey (e-mail: )
| | - Taner Basturk
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Tamer Sakaci
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Yener Koc
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Elbis Ahbap
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Mustafa Sevinc
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Ekrem Kara
- Department of Internal Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Cuneyt Akgol
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | | | - Abdulkadir Unsal
- Department of Nephrology, Sisli Hamidiye Etfal Educational and Research Hospital, Istanbul
| | - Mohamed R. Daha
- Department of Nephrology, C3-P, Leiden University Medical Center, Leiden, The Netherlands
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6
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An international consensus approach to the management of atypical hemolytic uremic syndrome in children. Pediatr Nephrol 2016; 31:15-39. [PMID: 25859752 DOI: 10.1007/s00467-015-3076-8] [Citation(s) in RCA: 343] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 01/26/2015] [Accepted: 02/16/2015] [Indexed: 12/19/2022]
Abstract
Atypical hemolytic uremic syndrome (aHUS) emerged during the last decade as a disease largely of complement dysregulation. This advance facilitated the development of novel, rational treatment options targeting terminal complement activation, e.g., using an anti-C5 antibody (eculizumab). We review treatment and patient management issues related to this therapeutic approach. We present consensus clinical practice recommendations generated by HUS International, an international expert group of clinicians and basic scientists with a focused interest in HUS. We aim to address the following questions of high relevance to daily clinical practice: Which complement investigations should be done and when? What is the importance of anti-factor H antibody detection? Who should be treated with eculizumab? Is plasma exchange therapy still needed? When should eculizumab therapy be initiated? How and when should complement blockade be monitored? Can the approved treatment schedule be modified? What approach should be taken to kidney and/or combined liver-kidney transplantation? How should we limit the risk of meningococcal infection under complement blockade therapy? A pressing question today regards the treatment duration. We discuss the need for prospective studies to establish evidence-based criteria for the continuation or cessation of anticomplement therapy in patients with and without identified complement mutations.
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7
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Picard C, Burtey S, Bornet C, Curti C, Montana M, Vanelle P. Pathophysiology and treatment of typical and atypical hemolytic uremic syndrome. ACTA ACUST UNITED AC 2015; 63:136-43. [DOI: 10.1016/j.patbio.2015.03.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/03/2015] [Indexed: 12/21/2022]
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8
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Cloarec S, Prat L, Merieau E, Benoit S, Halimi JM. Syndrome hémolytique et urémique en pédiatrie. Arch Pediatr 2015; 22:32-3. [DOI: 10.1016/s0929-693x(15)30017-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Abstract
First identified in human serum in the late 19th century as a 'complement' to antibodies in mediating bacterial lysis, the complement system emerged more than a billion years ago probably as the first humoral immune system. The contemporary complement system consists of nearly 60 proteins in three activation pathways (classical, alternative and lectin) and a terminal cytolytic pathway common to all. Modern molecular biology and genetics have not only led to further elucidation of the structure of complement system components, but have also revealed function-altering rare variants and common polymorphisms, particularly in regulators of the alternative pathway, that predispose to human disease by creating 'hyperinflammatory complement phenotypes'. To treat these 'complementopathies', a monoclonal antibody against the initiator of the membrane attack complex, C5, has received approval for use. Additional therapeutic reagents are on the horizon.
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Affiliation(s)
- M K Liszewski
- Division of Rheumatology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - J P Atkinson
- Division of Rheumatology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
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