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Storck K, Stenzl A, Regenbogen C, Hofauer B, Knopf A. [Neuro-otological manifestations in Fabry disease-a retrospective single center study]. HNO 2024; 72:16-24. [PMID: 37747492 PMCID: PMC10781801 DOI: 10.1007/s00106-023-01360-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Fabry disease (FD) is one of the X‑linked lysosomal storage diseases that can affect any organ. They have a specific lysosomal dysfunction in common, which results in substrate accumulation in lysosomes instead of metabolite degradation. Due to the deficiency/absence of α‑galactosidase, globotriaosylceramides (Gb3) are deposited in lysosomes of the organs. In addition to acroparesthesia, angiokeratomas, autonomic dysfunction, vortex keratopathies, ischemic cerebral or cardiac complications and chronic renal failure, also vestibulocochlear dysfunctions with sudden or progressive asymmetric hearing loss, tinnitus and vertigo may be observed. PATIENTS AND METHODS In this retrospective study, 33 patients (men = 16 and women = 17) with FD were evaluated. All patients presented to us in interdisciplinary cooperation as part of routine examinations by the specialized center for lysosomal storage diseases of the in-house department of nephrology. This presentation is carried out as a screening examination independent of neuro-otological symptoms. RESULTS The mean age at diagnosis was 34.76 (±11.55) years. The first presentation in our ENT department was at 40.45 (±11.71) years. We were able to demonstrate a significant correlation between neurological symptoms or apoplexy and hearing loss (p = 0.001) and between cardiac manifestations and hearing loss (p = 0.024). CONCLUSION Hearing loss is a potential symptom of Fabry disease and is not limited to the classic male phenotype. Due to possible positive correlations with neurological and cardiological manifestations of the disease, routine ENT screening examinations should be carried out to be able to identify and treat neuro-otological deficits at an early stage. In addition, FD should also be considered and tested as a differential diagnosis, especially in younger patients with sudden unilateral or bilateral hearing loss and a family history.
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Affiliation(s)
- Katharina Storck
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar, TU München, München, Deutschland.
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar, Technische Universität München, Ismaningerstr. 22, 81675, München, Deutschland.
| | - Anna Stenzl
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar, TU München, München, Deutschland
| | - Claudia Regenbogen
- Innere Medizin II, Nephrologie, Klinikum rechts der Isar, TU München, München, Deutschland
| | - Benedikt Hofauer
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar, TU München, München, Deutschland
| | - Andreas Knopf
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Universität Freiburg, Freiburg, Deutschland
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Muacevic A, Adler JR. Late-Onset Fabry Disease Affecting the Kidneys and Liver While Sparing the Heart: A Case Report. Cureus 2022; 14:e30989. [PMID: 36475199 PMCID: PMC9715366 DOI: 10.7759/cureus.30989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2022] [Indexed: 01/25/2023] Open
Abstract
Fabry disease (FD), also known as Anderson-Fabry disease, is an X-linked inherited lysosomal storage disorder caused by the deficiency or reduced activity of alpha-galactosidase A enzyme, which results in the accumulation of globotriaosylceramide (Gb3) in the cells. Atypical (late-onset) FD is characterized by the preserved residual activity of alpha-galactosidase A enzyme resulting in a later presentation in life than classic FD. Patients with late-onset FD are usually present in their third to seventh decades of life with the heart being the most commonly affected organ. FD can also affect the renal and gastrointestinal (GI) systems, however, in the literature, FD limited to the kidneys is scarcely reported and there is no data to suggest disease involvement of the liver. We present a rare case of late-onset FD affecting the kidneys and liver without cardiac or other organ involvement in a patient without having a family history of FD.
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Holy R, Hlozkova T, Prochazkova K, Kalfert D, Hybnerova F, Ebelova D, Streubel B, Chovanec M, Gal B, Linhart A, Astl J. Prevalence of Fabry disease in men with tinnitus and sensorineural hearing loss. J Appl Biomed 2021; 19:57-61. [PMID: 34907716 DOI: 10.32725/jab.2021.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 01/22/2021] [Indexed: 02/05/2023] Open
Abstract
Fabry disease (FD) is a lysosomal storage disorder caused by pathogenic mutations in the alpha-galactosidase A (AGALA) encoding gene region. This rare disease affects several organs including the cochlea-vestibular system. Tinnitus and sensorineural hearing loss (SNHL) are reported among otoneurological symptoms. Early and correct diagnosis of FD is important with a view to available therapy. The aim of the study was to screen for alpha-galactosidase deficiency in men with tinnitus/SNHL. A prospective multicentric study including consecutive patients with SNHL confirmed by tone audiometry or tinnitus evaluated (10/2016-8/2019). The diagnosis of AGALA deficiency was done by dry blood spot method using a threshold of 1.2 µmol/l/h. Only men aged 18-60 were included. 181 patients were subject to evaluation. SNHL was reported in 126 (70%) patients, 50 (28%) patients had unilateral, 76 (42%) patients had bilateral SNHL. Tinnitus was found in 161 (89%) patients, unilateral in 96 (53%) and bilateral in 65 (36%) patients. Suspected FD was not detected in any patient; alpha-galactosidase The AGALA values ranged 1.5-8.8 µmol/l/h, an average of 3.4 µmol/l/h. None of the 181 patients participating in the study had AGALA levels below the threshold 1.2 µmol/l/h. The occurrence of tinnitus and sensorineural hearing loss in men appears to be an irrelevant clinical sign for FD systematic screening.
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Affiliation(s)
- Richard Holy
- Charles University, Third Faculty of Medicine, Military University Hospital, Department of Otorhinolaryngology and Maxillofacial Surgery, Prague, Czech Republic
| | - Tereza Hlozkova
- Masaryk University, Medical Faculty, St. Anne's University Hospital, Department of Otorhinolaryngology and Head and Neck Surgery, Brno, Czech Republic
| | - Klara Prochazkova
- Charles University, Third Faculty of Medicine, Faculty Hospital Kralovske Vinohrady, Department of Otorhinolaryngology, Prague, Czech Republic
| | - David Kalfert
- Charles University, First Faculty of Medicine, University Hospital Motol, Department of Otorhinolaryngology and Head and Neck Surgery, Prague, Czech Republic
| | - Frantiska Hybnerova
- Charles University, Third Faculty of Medicine, Military University Hospital, Department of Otorhinolaryngology and Maxillofacial Surgery, Prague, Czech Republic
| | - Denisa Ebelova
- Charles University, First Faculty of Medicine, General University Hospital, 2nd Department of Medicine - Department of Cardiovascular Medicine, Prague, Czech Republic
| | - Berthold Streubel
- Medical University of Vienna, Clinical Institute for Pathology, Vienna, Austria
| | - Martin Chovanec
- Charles University, Third Faculty of Medicine, Faculty Hospital Kralovske Vinohrady, Department of Otorhinolaryngology, Prague, Czech Republic
| | - Bretislav Gal
- Masaryk University, Medical Faculty, St. Anne's University Hospital, Department of Otorhinolaryngology and Head and Neck Surgery, Brno, Czech Republic
| | - Ales Linhart
- Charles University, First Faculty of Medicine, General University Hospital, 2nd Department of Medicine - Department of Cardiovascular Medicine, Prague, Czech Republic
| | - Jaromir Astl
- Charles University, Third Faculty of Medicine, Military University Hospital, Department of Otorhinolaryngology and Maxillofacial Surgery, Prague, Czech Republic
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4
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Trinh TT, Blasco H, Maillot F, Bakhos D. Hearing loss in inherited metabolic disorders: A systematic review. Metabolism 2021; 122:154841. [PMID: 34333001 DOI: 10.1016/j.metabol.2021.154841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022]
Abstract
Inherited metabolic disorders (IMDs) have been observed in individuals with hearing loss (HL), but IMDs are rarely the cause of syndromic HL. With early diagnosis, management of HL is more effective and cortical reorganization is possible with hearing aids or cochlear implants. This review describes relationships between IMDs and HL in terms of incidence, etiology of HL, pathophysiology, and treatment. Forty types of IMDs are described in the literature, mainly in case reports. Management and prognosis are noted where existing. We also describe IMDs with HL given age of occurrence of HL. Reviewing the main IMDs that are associated with HL may provide an additional clinical tool with which to better diagnose syndromic HL.
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Affiliation(s)
- T-T Trinh
- CHRU de Tours, service ORL et Chirurgie Cervico-Faciale, Tours, France.
| | - H Blasco
- Laboratoire de Biochimie et Biologie Moléculaire, Tours, France; Université François Rabelais, Tours, France; INSERM U1253, Tours, France
| | - F Maillot
- Université François Rabelais, Tours, France; INSERM U1253, Tours, France; CHU de Tours, service de Médecine Interne, Tours, France
| | - D Bakhos
- CHRU de Tours, service ORL et Chirurgie Cervico-Faciale, Tours, France; Université François Rabelais, Tours, France; INSERM U1253, Tours, France
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5
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Moreno-Martinez D, Aguiar P, Auray-Blais C, Beck M, Bichet DG, Burlina A, Cole D, Elliott P, Feldt-Rasmussen U, Feriozzi S, Fletcher J, Giugliani R, Jovanovic A, Kampmann C, Langeveld M, Lidove O, Linhart A, Mauer M, Moon JC, Muir A, Nowak A, Oliveira JP, Ortiz A, Pintos-Morell G, Politei J, Rozenfeld P, Schiffmann R, Svarstad E, Talbot AS, Thomas M, Tøndel C, Warnock D, West ML, Hughes DA. Standardising clinical outcomes measures for adult clinical trials in Fabry disease: A global Delphi consensus. Mol Genet Metab 2021; 132:234-243. [PMID: 33642210 DOI: 10.1016/j.ymgme.2021.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Recent years have witnessed a considerable increase in clinical trials of new investigational agents for Fabry disease (FD). Several trials investigating different agents are currently in progress; however, lack of standardisation results in challenges to interpretation and comparison. To facilitate the standardisation of investigational programs, we have developed a common framework for future clinical trials in FD. METHODS AND FINDINGS A broad consensus regarding clinical outcomes and ways to measure them was obtained via the Delphi methodology. 35 FD clinical experts from 4 continents, representing 3389 FD patients, participated in 3 rounds of Delphi procedure. The aim was to reach a consensus regarding clinical trial design, best treatment comparator, clinical outcomes, measurement of those clinical outcomes and inclusion and exclusion criteria. Consensus results of this initiative included: the selection of the adaptative clinical trial as the ideal study design and agalsidase beta as ideal comparator treatment due to its longstanding use in FD. Renal and cardiac outcomes, such as glomerular filtration rate, proteinuria and left ventricular mass index, were prioritised, whereas neurological outcomes including cerebrovascular and white matter lesions were dismissed as a primary or secondary outcome measure. Besides, there was a consensus regarding the importance of patient-related outcomes such as general quality of life, pain, and gastrointestinal symptoms. Also, unity about lysoGb3 and Gb3 tissue deposits as useful surrogate markers of the disease was obtained. The group recognised that cardiac T1 mapping still has potential but requires further development before its widespread introduction in clinical trials. Finally, patients with end-stage renal disease or renal transplant should be excluded unless a particular group for them is created inside the clinical trial. CONCLUSION This consensus will help to shape the future of clinical trials in FD. We note that the FDA has, coincidentally, recently published draft guidelines on clinical trials in FD and welcome this contribution.
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Affiliation(s)
- D Moreno-Martinez
- Lysosomal Storage Disorders Unit, Royal Free Hospital NHS Foundation Trust and University College London, London, UK
| | - P Aguiar
- Inborn Errors of Metabolism Reference Centre, North Lisbon Hospital Centre, Lisbon, Portugal
| | - C Auray-Blais
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Canada
| | - M Beck
- Institute of Human Genetics, University Medical Centre, University of Mainz, Mainz, Germany
| | - D G Bichet
- Unité de Recherche Clinique, Centre de Recherche et Service de Néphrologie, Hôpital du Sacré-Coeur de Montreal, Montreal, Quebec, Canada
| | - A Burlina
- Neurological Unit, St. Bassiano Hospital, Bassano del Grappa, Italy
| | - D Cole
- Department of Medical Biochemistry and Immunology, University Hospital of Wales, Cardiff, Wales, UK
| | - P Elliott
- Barts Cardiac Centre, University College London, London, UK
| | - U Feldt-Rasmussen
- Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen, Denmark
| | - S Feriozzi
- Division of Nephrology, Belcolle Hospital, Viterbo, Italy
| | - J Fletcher
- Genetics and Molecular Pathology, SA Pathology Women's and Children's Hospital, North Adelaide, Australia
| | - R Giugliani
- Medical Genetics Service, HCPA, Department of Genetics, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - A Jovanovic
- Department of Endocrinology and Metabolic Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - C Kampmann
- Centre for Paediatric and Adolescent Medicine, University Medical Centre, University of Mainz, Mainz, Germany
| | - M Langeveld
- Department of Endocrinology and Metabolism, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - O Lidove
- Department of Internal Medicine, Université Paris 7, Hôpital Bichat Claude-Bernard, Paris, France
| | - A Linhart
- Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - M Mauer
- Department of Paediatrics, University of Minnesota, Minneapolis, MN, United States
| | - J C Moon
- Cardiac Imaging Department, Barts Heart Centre, London, UK
| | - A Muir
- Belfast Heart Centre, Royal Victoria Hospital, Belfast, UK
| | - A Nowak
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - J P Oliveira
- Service of Medical Genetics, São João University Hospital Centre, Alameda Hernãni Monteiro, Porto, Portugal
| | - A Ortiz
- Fundación Jiménez Díaz (IIS-FJD) Área de Patología Cardiovascular, Renal e Hipertensión, Madrid, Spain
| | - G Pintos-Morell
- Rare and Metabolic Diseases Unit, Vall Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J Politei
- Fundation for the Study of Neurometabolic Diseases, FESEN, Argentina
| | - P Rozenfeld
- Departamento de Ciencias Biológicas, CONICET, Facultad de Ciencias Exactas, IIFP, Universidad Nacional de La Plata, La Plata, Argentina
| | - R Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, Dallas, TX, USA
| | - E Svarstad
- Department of Clinical Medicine, University of Bergen and Haukeland University Hospital, Bergen, Norway
| | - A S Talbot
- Department of Nephrology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - M Thomas
- Department of Nephrology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - C Tøndel
- Clinical Trials Unit, Haukeland University Hospital, Bergen, Norway
| | - D Warnock
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - M L West
- Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - D A Hughes
- Lysosomal Storage Disorders Unit, Royal Free Hospital NHS Foundation Trust and University College London, London, UK.
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Azevedo O, Gago MF, Miltenberger-Miltenyi G, Sousa N, Cunha D. Fabry Disease Therapy: State-of-the-Art and Current Challenges. Int J Mol Sci 2020; 22:ijms22010206. [PMID: 33379210 PMCID: PMC7794923 DOI: 10.3390/ijms22010206] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022] Open
Abstract
Fabry disease (FD) is a lysosomal storage disorder caused by mutations of the GLA gene that lead to a deficiency of the enzymatic activity of α-galactosidase A. Available therapies for FD include enzyme replacement therapy (ERT) (agalsidase alfa and agalsidase beta) and the chaperone migalastat. Despite the large body of literature published about ERT over the years, many issues remain unresolved, such as the optimal dose, the best timing to start therapy, and the clinical impact of anti-drug antibodies. Migalastat was recently approved for FD patients with amenable GLA mutations; however, recent studies have raised concerns that "in vitro" amenability may not always reflect "in vivo" amenability, and some findings on real-life studies have contrasted with the results of the pivotal clinical trials. Moreover, both FD specific therapies present limitations, and the attempt to correct the enzymatic deficiency, either by enzyme exogenous administration or enzyme stabilization with a chaperone, has not shown to be able to fully revert FD pathology and clinical manifestations. Therefore, several new therapies are under research, including new forms of ERT, substrate reduction therapy, mRNA therapy, and gene therapy. In this review, we provide an overview of the state-of-the-art on the currently approved and emerging new therapies for adult patients with FD.
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Affiliation(s)
- Olga Azevedo
- Cardiology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.F.G.); (G.M.-M.); (N.S.); (D.C.)
- ICVS/3Bs PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- Correspondence: ; Tel.: +351-253-540-330; Fax: +351-253-513-592
| | - Miguel Fernandes Gago
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.F.G.); (G.M.-M.); (N.S.); (D.C.)
- ICVS/3Bs PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- Neurology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Gabriel Miltenberger-Miltenyi
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.F.G.); (G.M.-M.); (N.S.); (D.C.)
- ICVS/3Bs PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- Genetics Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.F.G.); (G.M.-M.); (N.S.); (D.C.)
- ICVS/3Bs PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Damião Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.F.G.); (G.M.-M.); (N.S.); (D.C.)
- ICVS/3Bs PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
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7
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Germain DP, Elliott PM, Falissard B, Fomin VV, Hilz MJ, Jovanovic A, Kantola I, Linhart A, Mignani R, Namdar M, Nowak A, Oliveira JP, Pieroni M, Viana-Baptista M, Wanner C, Spada M. The effect of enzyme replacement therapy on clinical outcomes in male patients with Fabry disease: A systematic literature review by a European panel of experts. Mol Genet Metab Rep 2019; 19:100454. [PMID: 30775256 PMCID: PMC6365982 DOI: 10.1016/j.ymgmr.2019.100454] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/17/2022] Open
Abstract
Background Enzyme replacement therapy (ERT) with recombinant human α-galactosidase has been available for the treatment of Fabry disease since 2001 in Europe and 2003 in the USA. Treatment outcomes with ERT are dependent on baseline patient characteristics, and published data are derived from heterogeneous study populations. Methods We conducted a comprehensive systematic literature review of all original articles on ERT in the treatment of Fabry disease published up until January 2017. This article presents the findings in adult male patients. Results Clinical evidence for the efficacy of ERT in adult male patients was available from 166 publications including 36 clinical trial publications. ERT significantly decreases globotriaosylceramide levels in plasma, urine, and in different kidney, heart, and skin cell types, slows the decline in estimated glomerular filtration rate, and reduces/stabilizes left ventricular mass and cardiac wall thickness. ERT also improves nervous system, gastrointestinal, pain, and quality of life outcomes. Conclusions ERT is a disease-specific treatment for patients with Fabry disease that may provide clinical benefits on several outcomes and organ systems. Better outcomes may be observed when treatment is started at an early age prior to the development of organ damage such as chronic kidney disease or cardiac fibrosis. Consolidated evidence suggests a dose effect. Data described in male patients, together with female and paediatric data, informs clinical practice and therapeutic goals for individualized treatment.
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Key Words
- ACEi, angiotensin-converting enzyme inhibitor
- ANS, autonomic nervous system
- ARB, angiotensin receptor blocker
- BPI, Brief Pain Inventory
- CES-D, Center for Epidemiologic Studies Depression Scale
- CNS, central nervous system
- CR, case report
- CT, clinical trial
- ECG, electrocardiogram/electrocardiography
- EOW, every other week
- ERT, enzyme replacement therapy
- Fabry disease
- GFR, glomerular filtration rate
- GI, gastrointestinal
- GL-3, globotriaosylceramide
- IENFD, intra-epidermal nerve fibre density
- IVST, intraventricular septum thickness
- LPWT, left posterior wall thickness
- LVEDD, left ventricular end-diastolic diameter
- LVEF, left ventricular ejection fraction
- LVH, left ventricular hypertrophy
- LVM, left ventricular mass
- LVMi, left ventricular mass index
- LVWT, left ventricular wall thickness
- MG, mixed gender
- MRI, magnetic resonance imaging
- MWT, maximal wall thickness
- NYHA, New York Heart Association
- OS, observational study
- PNS, peripheral nervous system
- QoL, quality of life
- RCT, randomized controlled trial
- SF-36, 36-item Short Form Health Survey
- TIA, transient ischaemic attack
- WMH, white matter hyperintensities.
- adult male patients
- agalsidase alfa
- agalsidase beta
- eGFR, estimated glomerular filtration rate
- enzyme replacement therapy
- lyso-GL-3, globotriaosylsphingosine
- systematic literature review
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Affiliation(s)
- Dominique P. Germain
- French Referral Center for Fabry disease, Division of Medical Genetics and INSERM U1179, University of Versailles, Paris-Saclay University, Montigny, France
- Corresponding author.
| | - Perry M. Elliott
- University College London and Barts Heart Centre, London, United Kingdom
| | - Bruno Falissard
- INSERM U1018, University of Paris-Sud, University of Paris-Descartes, Paris, France
| | - Victor V. Fomin
- Department of Internal Diseases No.1, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Max J. Hilz
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ana Jovanovic
- Mark Holland Metabolic Unit, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, University of Turku, Turku, Finland
| | - Aleš Linhart
- Second Department of Medicine – Department of Cardiovascular Medicine, 1st Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Renzo Mignani
- Department of Nephrology, Infermi Hospital, Rimini, Italy
| | - Mehdi Namdar
- Service de Cardiologie, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Albina Nowak
- Department of Internal Medicine, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - João-Paulo Oliveira
- Department of Genetics, São João Hospital Centre and Faculty of Medicine and “Instituto de Investigação e Inovação em Saúde (iS3)”, University of Porto, Porto, Portugal
| | | | - Miguel Viana-Baptista
- Serviço de Neurologia, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental; CEDOC Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Christoph Wanner
- Division of Nephrology, University Clinic, University of Würzburg, Würzburg, Germany
| | - Marco Spada
- Department of Paediatrics, University of Torino, Torino, Italy
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8
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Köping M, Shehata-Dieler W, Cebulla M, Rak K, Oder D, Müntze J, Nordbeck P, Wanner C, Hagen R, Schraven S. Cardiac and renal dysfunction is associated with progressive hearing loss in patients with Fabry disease. PLoS One 2017; 12:e0188103. [PMID: 29161295 PMCID: PMC5697846 DOI: 10.1371/journal.pone.0188103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/15/2017] [Indexed: 01/05/2023] Open
Abstract
Background Fabry disease (FD) is an X-linked recessive hereditary lysosomal storage disorder which results in the accumulation of globotriaosylceramid (Gb3) in tissues of kidney and heart as well as central and peripheral nervous system. Besides prominent renal and cardiac organ involvement, cochlear symptoms like high-frequency hearing loss and tinnitus are frequently found with yet no comprehensive data available in the literature. Objective To examine hearing loss in patients with FD depending on cardiac and renal function. Material and methods Single-center study with 68 FD patients enrolled between 2012 and 2016 at the Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery of the University of Würzburg. Every subject underwent an oto-rhino-laryngological examination as well as behavioral, electrophysiological and electroacoustical audiological testing. High-frequency thresholds were evaluated by using a modified PTA6 (0.5, 1, 2, 4, 6, 8) and HF-PTA (6, 8 kHz). Renal function was measured by eGFR, cardiac impairment was graduated by NYHA class. Results Sensorineural hearing loss was detected in 58.8% of the cohort, which occurred typically in sudden episodes and affected especially high frequencies. Hearing loss is asymmetric, beginning unilaterally and affecting the contralateral ear later. Tinnitus was reported by 41.2%. Renal and cardiac impairment influenced the severity of hearing loss (p < 0.05). Conclusions High frequency hearing loss is a common problem in patients with FD. Although not life-threatening, it can seriously reduce quality of life and should be taken into account in diagnosis and therapy. Optimized extensive hearing assessment including higher frequency thresholds should be used.
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Affiliation(s)
- Maria Köping
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
- * E-mail:
| | - Wafaa Shehata-Dieler
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
| | - Mario Cebulla
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
| | - Kristen Rak
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
| | - Daniel Oder
- Department of Internal Medicine I, Comprehensive Heart Failure Center (CHFC) and Fabry Center for Interdisciplinary Therapy (FAZIT), University Hospital Würzburg, Würzburg, Germany
| | - Jonas Müntze
- Department of Internal Medicine I, Comprehensive Heart Failure Center (CHFC) and Fabry Center for Interdisciplinary Therapy (FAZIT), University Hospital Würzburg, Würzburg, Germany
| | - Peter Nordbeck
- Department of Internal Medicine I, Comprehensive Heart Failure Center (CHFC) and Fabry Center for Interdisciplinary Therapy (FAZIT), University Hospital Würzburg, Würzburg, Germany
| | - Christoph Wanner
- Department of Internal Medicine I, Comprehensive Heart Failure Center (CHFC) and Fabry Center for Interdisciplinary Therapy (FAZIT), University Hospital Würzburg, Würzburg, Germany
| | - Rudolf Hagen
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
| | - Sebastian Schraven
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University Hospital Würzburg, Würzburg, Germany
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Schiffmann R, Hughes DA, Linthorst GE, Ortiz A, Svarstad E, Warnock DG, West ML, Wanner C, Christensen EI, Correa-Rotter R, Elliott PM, Feriozzi S, Fogo AB, Germain DP, Hollak CE, Hopkin RJ, Johnson J, Kantola I, Kopp JB, Kröner J, Linhart A, Martins AM, Matern D, Mehta AB, Mignani R, Najafian B, Narita I, Nicholls K, Obrador GT, Oliveira JP, Pisani A, Politei J, Ramaswami U, Ries M, Terryn W, Tøndel C, Torra R, Vujkovac B, Waldek S, Walter J. Screening, diagnosis, and management of patients with Fabry disease: conclusions from a "Kidney Disease: Improving Global Outcomes" (KDIGO) Controversies Conference. Kidney Int 2016; 91:284-293. [PMID: 27998644 DOI: 10.1016/j.kint.2016.10.004] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/08/2016] [Accepted: 10/13/2016] [Indexed: 01/16/2023]
Abstract
Patients with Fabry disease (FD) are at a high risk for developing chronic kidney disease and cardiovascular disease. The availability of specific but costly therapy has elevated the profile of this rare condition. This KDIGO conference addressed controversial areas in the diagnosis, screening, and management of FD, and included enzyme replacement therapy and nonspecific standard-of-care therapy for the various manifestations of FD. Despite marked advances in patient care and improved overall outlook, there is a need to better understand the pathogenesis of this glycosphingolipidosis and to determine the appropriate age to initiate therapy in all types of patients. The need to develop more effective specific therapies was also emphasized.
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Affiliation(s)
- Raphael Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, Dallas, Texas, USA.
| | - Derralynn A Hughes
- Department of Haematology, Royal Free London NHS Foundation Trust, & University College London, UK
| | - Gabor E Linthorst
- Department of Endocrinology and Metabolism, Academic Medical Center, Amsterdam, Netherlands
| | - Alberto Ortiz
- Unidad de Dialisis, IIS-Fundacion Jimenez Diaz/UAM, IRSIN, Madrid, Spain
| | - Einar Svarstad
- Department of Clinical Medicine, University of Bergen, Bergen, Norway; Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - David G Warnock
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Michael L West
- Department of Medicine, Dalhousie University, Halifax, Canada
| | - Christoph Wanner
- Department of Medicine, Division of Nephrology, University Hospital of Würzburg, Würzburg, Germany.
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Ciceran A, De Maio S. Cochleovestibular Manifestations in Fabry Disease. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2016. [DOI: 10.1177/2326409816661354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Alberto Ciceran
- Otolaryngologist Service, Juan Fernandez Hospital, Buenos Aires, Argentina
| | - Sonia De Maio
- Otolaryngologist Service, Juan Fernandez Hospital, Buenos Aires, Argentina
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El Dib R, Gomaa H, Carvalho RP, Camargo SE, Bazan R, Barretti P, Barreto FC. Enzyme replacement therapy for Anderson-Fabry disease. Cochrane Database Syst Rev 2016; 7:CD006663. [PMID: 27454104 PMCID: PMC6481759 DOI: 10.1002/14651858.cd006663.pub4] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Anderson-Fabry disease is an X-linked defect of glycosphingolipid metabolism. Progressive renal insufficiency is a major source of morbidity, additional complications result from cardio- and cerebro-vascular involvement. Survival is reduced among affected males and symptomatic female carriers.This is an update of a Cochrane review first published in 2010, and previously updated in 2013. OBJECTIVES To evaluate the effectiveness and safety of enzyme replacement therapy compared to other interventions, placebo or no interventions, for treating Anderson-Fabry disease. SEARCH METHODS We searched the Cystic Fibrosis and Genetic Disorders Group's Inborn Errors of Metabolism Trials Register (date of the most recent search: 08 July 2016). We also searched 'Clinical Trials' on The Cochrane Library, MEDLINE, Embase and LILACS (date of the most recent search: 24 September 2015). SELECTION CRITERIA Randomized controlled trials of agalsidase alfa or beta in participants diagnosed with Anderson-Fabry disease. DATA COLLECTION AND ANALYSIS Two authors selected relevant trials, assessed methodological quality and extracted data. MAIN RESULTS Nine trials comparing either agalsidase alfa or beta in 351 participants fulfilled the selection criteria.Both trials comparing agalsidase alfa to placebo reported on globotriaosylceramide concentration in plasma and tissue; aggregate results were non-significant. One trial reported pain scores measured by the Brief Pain Inventory severity, there was a statistically significant improvement for participants receiving treatment at up to three months, mean difference -2.10 (95% confidence interval -3.79 to -0.41; at up to five months, mean difference -1.90 (95% confidence interval -3.65 to -0.15); and at up to six months, mean difference -2.00 (95% confidence interval -3.66 to -0.34). There was a significant difference in the Brief Pain Inventory pain-related quality of life at over five months and up to six months, mean difference -2.10 (95% confidence interval -3.92 to -0.28) but not at other time points. Death was not an outcome in either of the trials.One of the three trials comparing agalsidase beta to placebo reported on globotriaosylceramide concentration in plasma and tissue and showed significant improvement: kidney, mean difference -1.70 (95% confidence interval -2.09 to -1.31); heart, mean difference -0.90 (95% confidence interval -1.18 to -0.62); and composite results (renal, cardiac, and cerebrovascular complications and death), mean difference -4.80 (95% confidence interval -5.45 to -4.15). There was no significant difference between groups for death; no trials reported on pain.Only two trials compared agalsidase alfa to agalsidase beta. One of them showed no significant difference between the groups regarding adverse events, risk ratio 0.36 (95% confidence interval 0.08 to 1.59), or any serious adverse events; risk ratio 0.30; (95% confidence interval 0.03 to 2.57).Two trials compared different dosing schedules of agalsidase alfa. One of them involved three different doses (0.2 mg/kg every two weeks; 0.1 mg/kg weekly and; 0.2 mg/kg weekly), the other trial evaluated two further doses to the dosage schedules: 0.4 mg/kg every week and every other week. Both trials failed to show significant differences with various dosing schedules on globotriaosylceramide levels. No significant differences were found among the schedules for the primary efficacy outcome of self-assessed health state, or for pain scores.One trial comparing agalsidase alfa to agalsidase beta showed no significant difference for any adverse events such as dyspnoea and hypertension.The methodological quality of the included trials was generally unclear for the random sequence generation and allocation concealment. AUTHORS' CONCLUSIONS Trials comparing enzyme replacement therapy to placebo show significant improvement with enzyme replacement therapy in regard to microvascular endothelial deposits of globotriaosylceramide and in pain-related quality of life. There is, however, no evidence identifying if the alfa or beta form is superior or the optimal dose or frequency of enzyme replacement therapy. With regards to safety, adverse events (i.e., rigors, fever) were more significant in the agalsidase beta as compared to placebo. The long-term influence of enzyme replacement therapy on risk of morbidity and mortality related to Anderson-Fabry disease remains to be established. This review highlights the need for continued research into the use of enzyme replacement therapy for Anderson-Fabry disease.
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Affiliation(s)
- Regina El Dib
- Institute of Science and Technology, Unesp ‐ Univ Estadual PaulistaDepartment of Biosciences and Oral DiagnosisBotucatuBrazil
| | - Huda Gomaa
- Department of Pharmacy,Tanta Chest Hospital3 Ahmed Kamal Street,TantaGharbiaEgypt112311
| | - Raíssa Pierri Carvalho
- Botucatu Medical School, UNESP ‐ Univ Estadual PaulistaAvenida Camilo Mazoni, 1055 ‐ F23Jardim ParaisoBotucatuSao PauloBrazil18610‐285
| | - Samira E Camargo
- São Paulo State University ‐ UNESPDepartment of Biosciences and Oral Diagnosis777 Francisco Jose LongoSão Jose dos CamposSão PauloSão PauloBrazil12245‐000
| | - Rodrigo Bazan
- Botucatu Medical School, Universidade Estadual Paulista (UNESP)Department of NeurologyDistrict of Rubiao JuniorBotucatu, São PauloBrazil
| | - Pasqual Barretti
- Botucatu Medical School, UNESP ‐ Univ Estadual PaulistaClinical MedicineDistrito de Rubião Junior, s/nBotucatuSão PauloBrazil18618‐900
| | - Fellype C Barreto
- Universidade Católica do ParanáSchool of Medicine PontifíciaRua Imaculada Conceição, 1155CuritibaParanáBrazil80215‐901
- Universidade Federal do Paraná (UFPR)Department of Internal MedicineCuritibaParanáBrazil
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Vibert D, Blaser B, Ozdoba C, Häusler R. Fabry's Disease: Otoneurologic Findings in Twelve Members of One Family. Ann Otol Rhinol Laryngol 2016; 115:412-8. [PMID: 16805371 DOI: 10.1177/000348940611500603] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fabry's disease corresponds to an inherited disorder transmitted by an X-linked recessive gene. It generates a dysfunction of glycosphingolipid metabolism due to an enzymatic deficiency of α-galactosidase activity, resulting in glycosphingolipid deposits in all areas of the body. The clinical (heart, kidney, and central nervous system) manifestations are more severe in hemizygous boys than in heterozygous girls. They appear during childhood or adolescence: acroparesthesia, joint pain, angiokeratoma, corneal dystrophy, hypohydrosis or anhydrosis, and renal failure. The otoneurologic symptoms consist of hearing fluctuation, progressive unilateral or bilateral hearing loss, and episodes of vertigo or dizziness. Otoneurologic findings in 12 of 26 members of the same family are presented: the mother and 9 of her 12 children, as well as 2 of her 14 grandchildren: 4 healthy persons, 4 heterozygous female carriers, and 4 hemizygous male patients. Three of the male patients had fluctuation of hearing, sudden hearing loss, and episodes of vertigo and dizziness. The otoneurologic examinations showed a bilateral cochleovestibular deficit (n = 1), a right cochleovestibular deficit (n = 1), and a bilateral hearing loss combined with a right vestibular deficit (n = 1). Histopathologic evidence of glycosphingolipid accumulation in vascular endothelial and ganglion cells, as well as atrophy of the stria and spiral ligament, might explain the otoneurologic symptoms and findings.
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Affiliation(s)
- Dominique Vibert
- Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, University of Berne, Berne, Switzerland
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Suntjens EB, Smid BE, Biegstraaten M, Dreschler WA, Hollak CEM, Linthorst GE. Hearing loss in adult patients with Fabry disease treated with enzyme replacement therapy. J Inherit Metab Dis 2015; 38:351-8. [PMID: 25395255 DOI: 10.1007/s10545-014-9783-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 10/01/2014] [Accepted: 10/14/2014] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Data on prevalence, natural history, and effect of enzyme replacement therapy (ERT) on hearing loss (HL) in Fabry disease (FD) are scarce. METHODS This is a retrospective study with cross-sectional and longitudinal analyses. Low and high-frequency HL in the Dutch FD cohort was studied in four groups: classical and non-classical FD patients with or without ERT. To study effects of ERT, longitudinal data, corrected for age and gender according to ISO-1999 guidelines, were analyzed with mixed models. RESULTS In the cross-sectional analysis, 107 FD patients (41 males), median age 47.6 years (18.8-80.6) were analyzed. At baseline, i.e., before start of ERT, HL was present in 18 patients (16.8 %), of whom four had bilateral sensorineural HL. HL was more often present in patients with the classical phenotype than non-classical patients (p < 0.01). Likewise, males had more often HL than females. Compared to the general population, FD patients show a median HL of 8.2 dB at low frequencies (p < 0.01) and 29.5 dB at ultra-high frequencies (p < 0.01). Longitudinal analyses (n = 91) revealed that ERT treated patients show a similar rate of decline, not significantly different from healthy controls. CONCLUSION Adult FD patients, especially classical affected males, show impaired hearing. Longitudinal analyses during ERT in these patients demonstrates a decline of HL similar to healthy controls, but HL present before initiation of therapy cannot be reversed. Whether early therapy can prevent hearing loss is unknown.
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Affiliation(s)
- Eefje B Suntjens
- Sphinx-Amsterdam Lysosome Center, Department of Endocrinology and metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Anderson LJ, Wyatt KM, Henley W, Nikolaou V, Waldek S, Hughes DA, Pastores GM, Logan S. Long-term effectiveness of enzyme replacement therapy in Fabry disease: results from the NCS-LSD cohort study. J Inherit Metab Dis 2014; 37:969-78. [PMID: 24831586 DOI: 10.1007/s10545-014-9717-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 03/13/2014] [Accepted: 04/10/2014] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To determine the effectiveness of enzyme replacement therapy (ERT) for adults and children with Fabry disease. DESIGN Cohort study including prospective and retrospective clinical data. Age- and gender-adjusted treatment effects were estimated using generalised linear mixed models. Treated patients contributed data before and during treatment and untreated patients contributed natural history data. PARTICIPANTS Consenting adults (N = 289) and children (N = 22) with a confirmed diagnosis of Fabry disease attending a specialist Lysosomal Storage Disorder treatment centre in England. At recruitment 211 adults and seven children were on ERT (range of treatment duration, 0 to 9.7 and 0 to 4.2 years respectively). OUTCOME MEASURES Clinical outcomes chosen to reflect disease progression included left ventricular mass index (LVMI); proteinuria; estimated glomerular filtration rate (eGFR); pain; hearing and transient ischaemic attacks (TIA)/stroke. RESULTS We found evidence of a statistically significant association between time on ERT and a small linear decrease in LVMI (p = 0.01); a reduction in the risk of proteinuria after adjusting for angiotensin-converting enzyme inhibitors and angiotensin receptor blockers (p < 0.001) and a small increase in eGFR in men and women without pre-treatment proteinuria (p = 0.01 and p < 0.001 respectively). The same analyses in children provided no statistically significant results. No associations between time on ERT and pain, risk of needing a hearing aid, or risk of stroke or TIAs, were found. CONCLUSIONS These data provide some further evidence on the long-term effectiveness of ERT in adults with Fabry disease, but evidence of effectiveness could not be demonstrated in children.
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Affiliation(s)
- L J Anderson
- Institute of Health Research, University of Exeter Medical School, Veysey Building, Salmon Pool Lane, Exeter, Devon, UK, EX2 4SG
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Abstract
BACKGROUND Anderson-Fabry disease is an X-linked defect of glycosphingolipid metabolism. Progressive renal insufficiency is a major source of morbidity, additional complications result from cardio- and cerebro-vascular involvement. Survival is reduced among affected males and symptomatic female carriers. OBJECTIVES To evaluate the effectiveness and safety of enzyme replacement therapy compared to other interventions, placebo or no interventions, for treating Anderson-Fabry disease. SEARCH METHODS We searched 'Clinical Trials' on The Cochrane Library, MEDLINE, EMBASE, LILACS and the Cystic Fibrosis and Genetic Disorders Group's Inborn Errors of Metabolism Trials Register (date of the most recent search: 11 September 2012). The original search was performed in September 2008.Date of the most recent search of the Cystic Fibrosis and Genetic Disorders Group's Inborn Errors of Metabolism Trials Register: 11 September 2012. SELECTION CRITERIA Randomized controlled trials of agalsidase alfa or beta in participants diagnosed with Anderson-Fabry disease. DATA COLLECTION AND ANALYSIS Two authors selected relevant trials, assessed methodological quality and extracted data. MAIN RESULTS Six trials comparing either agalsidase alfa or beta in 223 participants fulfilled the selection criteria.Both trials comparing agalsidase alfa to placebo reported on globotriaosylceramide concentration in plasma and tissue; aggregate results were non-significant. One trial reported pain scores, there was a statistically significant improvement for participants receiving treatment at up to three months, mean difference -2.10 (95% confidence interval (CI) -3.79 to -0.41); at up to five months, mean difference -1.90 (95% CI -3.65 to -0.15); and at up to six months, mean difference -2.00 (95% CI -3.66 to -0.34). There was a significant difference in pain-related quality of life at over five months and up to six months, mean difference -2.10 (95% CI -3.92 to -0.28) but not at other time-points. Neither trial reported deaths.One of the three trials comparing agalsidase beta to placebo reported on globotriaosylceramide concentration in plasma and tissue and showed significant improvement: kidney, mean difference -1.70 (95% CI -2.09 to -1.31); heart, mean difference -0.90 (95% CI -1.18 to -0.62); and composite results (renal, cardiac, and cerebrovascular complications and death), mean difference -4.80 (95% CI -5.45 to -4.15). There was no significant difference between groups for death; no trials reported on pain.Only one trial compared agalsidase alfa to agalsidase beta. There was no significant difference between the groups for any adverse events, risk ratio 0.36 (95% CI 0.08 to 1.59), or any serious adverse events; risk ratio 0.30; 95% CI 0.03 to 2.57). AUTHORS' CONCLUSIONS Six small, poor quality randomised controlled trials provide no robust evidence for use of either agalsidase alfa and beta to treat Anderson-Fabry disease.
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Affiliation(s)
- Regina P El Dib
- Botucatu Medical School, Universidade Estadual Paulista (UNESP), Botucatu, Brazil.
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17
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Abstract
Fabry disease results from deficient activity of the enzyme α-galactosidase A and progressive lysosomal deposition of globotriaosylceramide (GL-3) in cells throughout the body. The main neurological presentations of Fabry disease patients are painful neuropathy, hypohidrosis, and stroke. Fabry neuropathy is characterized as a length-dependent peripheral neuropathy affecting mainly the small myelinated (Aδ) fibers and unmyelinated (C) fibers. Enzyme replacement therapy (ERT) has been shown to have some positive effects on the reduction of neuropathic pain, the improvement of detection threshold for thermal sensation, and sweat function. On the contrary, the effect of ERT on the central nervous system has not been established. Early initiation of ERT before irreversible organ failure is extremely important, and alternative therapeutic approaches are currently being explored. Heterozygotes suffer from peripheral neuropathy at a higher rate than previously shown, significant multisystemic disease, and severely decreased quality of life. As well as being carriers, heterozygotes also display symptoms of Fabry disease, and should be carefully monitored and given adequate therapy.
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Affiliation(s)
- Keiko Toyooka
- Department of Neurology, National Hospital Organization Toneyama National Hospital, Toyonaka, Osaka, Japan.
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Pisani A, Visciano B, Roux GD, Sabbatini M, Porto C, Parenti G, Imbriaco M. Enzyme replacement therapy in patients with Fabry disease: state of the art and review of the literature. Mol Genet Metab 2012; 107:267-75. [PMID: 22963910 DOI: 10.1016/j.ymgme.2012.08.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 08/04/2012] [Accepted: 08/04/2012] [Indexed: 12/25/2022]
Abstract
Anderson-Fabry disease is an X-linked lysosomal storage disorder resulting from the deficiency of the hydrolytic enzyme alpha galactosidase A, with consequent accumulation of globotrioasoyl ceramide in cells and tissues of the body, resulting in a multi-system pathology including end organ failure. In the classical phenotype, cardiac failure, renal failure and stroke result in a reduced median life expectancy. The current causal treatment for Fabry disease is the enzyme replacement therapy (ERT): two different products, Replagal (agalsidase alfa) and Fabrazyme (agalsidase beta), have been commercially available in Europe for almost 10 years and they are both indicated for long-term treatment. In fact, clinical trials, observational studies and registry data have provided many evidences for safety and efficacy of ERT in improving symptoms of pain, gastrointestinal disturbances, hypohidrosis, left ventricular mass index, glomerular filtration rate and quality of life. Few data are available on comparison of the two treatments and on the clinical course of the disease. This article reviews the published evidence for clinical efficacy of the two available enzyme preparations.
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Affiliation(s)
- Antonio Pisani
- Department of Nephrology, University Federico II, Napoli, Italy
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Fabry disease presenting with sudden hearing loss and otosclerosis: a case report. J Med Case Rep 2012; 6:112. [PMID: 22507244 PMCID: PMC3342865 DOI: 10.1186/1752-1947-6-112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 04/16/2012] [Indexed: 12/02/2022] Open
Abstract
Introduction Fabry disease is an X-linked lysosomal storage disorder resulting in a multiple-system disorder with a wide spectrum of physical signs and symptoms, predominantly affecting the central and peripheral nervous systems, skin, heart, kidneys, and eyes. Case presentation We describe the case of a 26-year-old European Caucasian man who had Fabry disease and who presented with episodic sudden unilateral hearing loss and was treated with glucocorticoids, pentoxifylline, hyperbaric oxygen, and fluoride because of concomitant audiometric evidence of otosclerosis. This case demonstrates the partial and transient beneficial effect of standard treatment for sudden hearing loss not related to Fabry disease and analyzes the possible connection between typical Fabry disease inner-ear lesions and otosclerosis. Whereas hearing loss has been described in connection with Fabry disease, otosclerosis-associated hearing loss in Fabry disease has not yet been described. Conclusions Although progressive hearing loss in patients with Fabry disease seems to be influenced by replacement therapy, few data concerning treatment of sudden hearing loss are available. The lack of literature concerning the pathogenesis of the otological involvement in Fabry disease makes it impossible to identify a connection between the latter and otosclerosis. Therefore, this report may help to reinforce the importance of a thorough evaluation of hearing in patients with Fabry disease and may be of help with therapeutic decision-making.
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Abstract
Fabry disease (FD) is caused by progressive accumulation of neutral glycosphingolipids, including in ganglion neural and vascular endothelial cells, as a result of lysosomal α-galactosidase deficiency. High frequencies progressive sensorineural hearing loss (HL), sudden deafness, tinnitus and dizziness are otological symptoms frequently reported.A 45-year-old man with FD, on haemodialysis since age 25, complaining of progressive HL, was started on enzyme replacement therapy (ERT) because of cardiac complications. A bilateral sloping sensorineural HL was found at baseline audiological evaluation. Computed tomography of the ears showed enlargement of the intradiploic vascular channels, principally in the petrous bone. The magnetic resonance angiography showed elongation and ectasia of the middle cerebral arteries and the arteries of the Circle of Willis, particularly the internal carotid and the basilar arteries. Follow-up audiological evaluations documented progressive worsening of HL, mainly in the high frequencies range, despite high dose ERT and evidence of cardiac improvement.The intradiploic vascular abnormalities of the temporal bones reported herein have never been described in association with FD and may have contributed to the pathogenesis of progressive HL, by a 'stealing' effect upon the cochlear blood supply (like in cavernous haemangioma of the internal auditory meatus), in addition to the other mechanisms of ischaemic injury to the Organ of Corti described in FD. This clinical observation shows the value of comprehensive neuroimaging investigation of HL in FD and emphasizes the importance of early institution of specific therapy, before the occurrence of irreversible inner ear lesions and hearing damage.
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Pichon M, Lidove O, Roudaire ML, Barry B, Herman P, Gobert D, Pasqualoni E, Compain C, Chauveheid MP, Papo T. [Auditory and vestibular findings in Fabry disease: a study of 25 patients]. Rev Med Interne 2012; 33:364-9. [PMID: 22365473 DOI: 10.1016/j.revmed.2012.01.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 01/05/2012] [Accepted: 01/21/2012] [Indexed: 11/28/2022]
Abstract
PURPOSE Fabry disease (FD, OMIM 301500) is an X-linked lysosomal storage disorder due to deficient activity of the enzyme alpha-galactosidase A. Males and females exhibit severe organ involvement. The high incidence of otological symptoms was recently reported. PATIENTS AND METHODS Monocentric and retrospective study of twenty-five patients with FD (13 families; seven males and 18 females). The patients underwent audiological assessment before initiation and during enzyme replacement therapy. We also analysed neurologic heart and kidney status. RESULTS Twenty patients (80%; 13 females and seven males) complained of otologic symptoms. Audiological evaluation showed a sensorineural hearing loss in 17 patients, bilateral in 16 out of them. Vestibular examination showed a functional impairment in two patients (one female, one male). Correlations were found between hearing loss and either kidney disease (73,3%), neurological complications (100%) and cardiomyopathy (80%). Fourteen patients (56%; seven females, seven males) received enzyme replacement therapy. Improvement or stabilization of the audiological evaluation was reported in seven patients, whereas worsening was observed in three patients. CONCLUSION This study confirms the high frequency of audiological involvements in females and males with FD. Our analysis suggests that the frequency of hearing loss is increased in the presence of renal or neurologic involvement or cardiomyopathy. There is no clinically significant efficacy of enzyme replacement therapy on hearing function. Although the pathophysiology remains unknown, a vascular mechanism responsible of the inner ear involvement seems to be privileged.
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Affiliation(s)
- M Pichon
- Service de médecine interne, hôpital Bichat Claude Bernard, 46, rue Henri-Huchard, 75877 Paris cedex 18, France
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Clinkard DJ, Amoodi H, Lin VYW, Chen JM, Nedzelski JM. Improved hearing with cochlear implantation in Fabry's disease. Cochlear Implants Int 2012; 12:238-40. [PMID: 22251813 DOI: 10.1179/1754762811y0000000004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVE To describe our center's experience with cochlear implantation in patients suffering from Fabry's disease, an inherited mutation resulting in an alpha-galactosidase A enzyme deficiency. CLINICAL PRESENTATION Case report of two patients aged 49 and 59 at implant, with genetically confirmed Fabry's disease and progressive hearing loss. INTERVENTION Surgical implantation of Clarion (Advanced Bionics) and Nucleus Freedom (Cochlear) cochlear implants. CONCLUSION Cochlear implantation improves hearing discrimination by 60 points on the HINT scale. This suggests that cochlear implantation is a safe and effective intervention that improves hearing discrimination in patients suffering from Fabry's disease.
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García de Lorenzo A. Consenso para el estudio y tratamiento de la enfermedad de Fabry. Fundación GETER. Med Clin (Barc) 2011; 137:178-83. [DOI: 10.1016/j.medcli.2011.02.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 02/21/2011] [Accepted: 02/24/2011] [Indexed: 12/13/2022]
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Ramaswami U. Update on role of agalsidase alfa in management of Fabry disease. Drug Des Devel Ther 2011; 5:155-73. [PMID: 21552486 PMCID: PMC3084298 DOI: 10.2147/dddt.s11985] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Indexed: 02/05/2023] Open
Abstract
Fabry disease (FD) is an X-linked lysosomal storage disorder that affects both men and women. The manifestations of this heterogeneous disease are multisystemic and progressive. Prior to the development of enzyme replacement therapy, the management and treatment for Fabry disease was largely nonspecific and supportive. Because enzyme replacement therapy became commercially available in 2001, a variety of clinical benefits in Fabry patients have been consistently reported, including improved renal pathology and cardiac function, and reduced severity of neuropathic pain and improved pain-related quality of life. This update focuses on published data on the efficacy and tolerability of enzyme replacement therapy with agalsidase alfa, and gives a brief overview on some of the outstanding management issues in the treatment of this complex disease.
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Affiliation(s)
- Uma Ramaswami
- Paediatric Metabolic Unit, Cambridge University Hospitals, Cambridge, UK.
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Alfadhel M, Sirrs S. Enzyme replacement therapy for Fabry disease: some answers but more questions. Ther Clin Risk Manag 2011; 7:69-82. [PMID: 21445281 PMCID: PMC3061846 DOI: 10.2147/tcrm.s11987] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Indexed: 02/05/2023] Open
Abstract
Fabry disease (FD) is a multisystem, X-linked disorder of glycosphingolipid metabolism caused by enzyme deficiency of α-galactosidase A. Affected patients have symptoms including acroparesthesias, angiokeratomas, and hypohidrosis. More serious manifestations include debilitating pain and gastrointestinal symptoms, proteinuria and gradual deterioration of renal function leading to end-stage renal disease, hypertrophic cardiomyopathy, and stroke. Heterozygous females may have symptoms as severe as males with the classic phenotype. Before 2001, treatment of patients with FD was supportive. The successful development of enzyme replacement therapy (ERT) has been a great advancement in the treatment of patients with FD and can stabilize renal function and cardiac size, as well as improve pain and quality of life of patients with FD. In this review, we have provided a critical appraisal of the literature on the effects of ERT for FD. This analysis shows that data available on the treatment of FD are often derived from studies which are not controlled, rely on surrogate markers, and are of insufficient power to detect differences on hard clinical endpoints. Further studies of higher quality are needed to answer the questions that remain concerning the efficacy of ERT for FD.
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Affiliation(s)
- Majid Alfadhel
- Division of Biochemical Diseases, Department of Paediatrics, BC Children's and Women's Hospital, University of British Columbia, Vancouver, BC, Canada
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Abstract
PURPOSE Fabry disease is a progressive multiorgan, multisystem disorder that is caused by a deficiency in the lysosomal enzyme α-galactosidase A. Serious renal, cardiac, and cerebrovascular involvement are responsible for much of the morbidity and premature mortality associated with Fabry disease, and neuropathic pain, gastrointestinal problems, and hypohidrosis negatively affect quality of life of patients with Fabry disease. Fabry disease is X-linked, but women are often symptomatic and may be as severely affected as men. METHODS We propose a series of therapeutic and symptomatic goals for use in setting the expectations of enzyme replacement therapy and for assessing the response to enzyme replacement therapy in the treatment of Fabry disease. RESULTS Enzyme replacement therapy has been available since 2001 and has been associated with benefit in clinical trials, including stabilization of kidney function, improvement of cardiac structure and function, reduction in severity of neuropathic pain, and improvement in gastrointestinal involvement. CONCLUSIONS The presentation of these therapeutic goals will aid in the evaluation of response to enzyme replacement therapy and be useful in establishing an overall management plan for individual patients.
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Effects of enzyme replacement therapy in Fabry disease--a comprehensive review of the medical literature. Genet Med 2011; 12:668-79. [PMID: 20962662 DOI: 10.1097/gim.0b013e3181f13b75] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Enzyme replacement therapy with α-galactosidase A has been used to treat Fabry disease since 2001. This article reviews the published evidence for clinical efficacy of the two available enzyme preparations. We focused on heart, kidney, and nervous system manifestations, which impact both quality of life and overall prognosis. A literature search was undertaken to identify prospective open or randomized controlled trials of enzyme replacement therapy in patients with Fabry disease published since 2001. To date, no definitive conclusion can be drawn from studies that have directly compared therapeutic responses between the two commercially available enzyme preparations. Significant clinical benefits of enzyme replacement therapy have been demonstrated, mainly in patients at an early phase of the disease, with beneficial effects on heart, kidneys, pain, and quality of life in treated patients. Incidence of antibodies against agalsidase alfa and agalsidase beta observed during major clinical studies suggests a greater antigenic response to agalsidase beta. Further studies are required to confirm the long-term clinical benefits of enzyme replacement therapy. More studies with female patients are needed as are investigations of early initiation of enzyme replacement therapy to determine the optimal time to start treatment to prevent irreversible organ damage. The value of adjunctive and supportive therapies should also be rigorously analyzed.
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Guest JF, Jenssen T, Houge G, Aaseboe W, Tøndel C, Svarstad E. Modelling the resource implications of managing adults with Fabry disease in Norway favours home infusion. Eur J Clin Invest 2010; 40:1104-12. [PMID: 21070219 DOI: 10.1111/j.1365-2362.2010.02363.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aim of this study was to estimate the resource implications and budget impact of managing adults with Fabry disease in Norway, from the perspective of the publicly funded healthcare system. METHODS A decision model was constructed using published clinical outcomes and clinician-derived resource utilization estimates. The model was used to estimate the annual healthcare cost of managing a cohort of 64 adult Fabry patients in an average year. RESULTS The expected annual cost of managing 60 existing Fabry patients and four new patients in Norway each year was estimated to be NOK 55·8 million (€6·7 million). In an average year, patients receiving enzyme replacement therapy (ERT) with agalsidase alfa (Replagal(®)) at 0·2 mg kg⁻¹ or agalsidase beta (Fabrazyme(®)) at 1·0 mg kg⁻¹ are collectively expected to make 586 attendances to their family practitioner's office for their infusions, which equates to 128 eight-hour days associated with ERT. Encouraging more patients to undergo home-based infusions has substantial potential to free-up community-based resources. In comparison, the community-related benefit that can be obtained by switching from agalsidase beta (1·0 mg kg⁻¹) to agalsidase alpha (0·2 mg kg⁻¹) is marginal, and dependent on the two doses being clinically equivalent. CONCLUSION Maximizing the proportion of adults with Fabry disease undergoing home-based infusions has the potential to release community-based resources for alternative use by non-Fabry patients, thereby improving the efficiency of the publicly funded healthcare system in Norway.
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Affiliation(s)
- Julian F Guest
- Catalyst Health Economics Consultants, Northwood, Middlesex, UK.
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Abstract
Fabry disease is an X-linked lysosomal storage disorder that is caused by a deficiency in the enzyme α-galactosidase A. Manifestations emerge during childhood, including neuropathic pain, hypohidrosis and gastrointestinal problems. Major organ involvement typically occurs during adulthood and includes progressive kidney dysfunction, cardiomyopathy and valve disease, and stroke. Enzyme-replacement therapy with agalsidase alfa has been available since 2001 and is associated with clinical benefit in adult men and women, as well as in children, with Fabry disease. The responses to agalsidase alfa include reduction in the severity of neuropathic pain, stabilization of kidney function and reduction in left ventricular mass in patients with baseline left ventricular hypertrophy. Several issues, including when to initiate treatment and whether long-term treatment will extend survival, remain to be answered. This article covers the clinical development of agalsidase alfa and the postmarketing reports of its safety and effectiveness.
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Affiliation(s)
- Atul Mehta
- a Royal Free Hospital and University College Medical School, Pond Street, NW3 2QG, London, UK.
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Abstract
BACKGROUND Anderson-Fabry disease is an X-linked defect of glycosphingolipid metabolism. Progressive renal insufficiency is a major source of morbidity, additional complications result from cardio- and cerebro-vascular involvement. Survival is reduced among affected males and symptomatic female carriers. OBJECTIVES To evaluate the effectiveness and safety of enzyme replacement therapy compared to other interventions, placebo or no interventions, for treating Anderson-Fabry disease. SEARCH STRATEGY We searched 'Clinical Trials' on The Cochrane Library, MEDLINE, EMBASE, LILACS and the Cystic Fibrosis and Genetic Disorders Group's Inborn Errors of Metabolism Trials Register (date of the most recent search: 07 April 2010). SELECTION CRITERIA Randomized controlled trials of agalsidase alfa or beta in participants diagnosed with Anderson-Fabry disease. DATA COLLECTION AND ANALYSIS Two authors selected relevant trials, assessed methodological quality and extracted data. MAIN RESULTS Five studies comparing either agalsidase alfa or beta in 187 participants fulfilled the selection criteria.Both trials comparing agalsidase alfa to placebo reported on globotriaosylceramide concentration in plasma and tissue; aggregate results were non-significant. One study reported pain scores, there was a statistically significant improvement for participants receiving treatment at up to three months, mean difference -2.10 (95% confidence interval (CI) -3.79 to -0.41); at up to five months, mean difference -1.90 (95% CI -3.65 to -0.15); and at up to six months, mean difference -2.00 (95% CI -3.66 to -0.34). There was a significant difference in pain-related quality of life at over five months and up to six months, mean difference -2.10 (95% CI -3.92 to -0.28) but not at other time-points. Neither study reported deaths.One of the three trials comparing agalsidase beta to placebo reported on globotriaosylceramide concentration in plasma and tissue and showed significant improvement: kidney, mean difference -1.70 (95% CI -2.09 to -1.31); heart, mean difference -0.90 (95% CI -1.18 to -0.62); and composite results (renal, cardiac, and cerebrovascular complications and death), mean difference -4.80 (95% CI -5.45 to -4.15). There was no significant difference between groups for death; no studies reported on pain. AUTHORS' CONCLUSIONS Five small, poor quality randomised controlled trials provide no robust evidence for use of either agalsidase alfa and beta to treat Anderson-Fabry disease.
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Affiliation(s)
- Regina P El Dib
- Department of Surgery, St. Joseph's Healthcare Hamilton, McMaster University, 50 Charlton Avenue East, Hamilton, ON, Canada, L8N 4A6
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Morel CF, Clarke JTR. The use of agalsidase alfa enzyme replacement therapy in the treatment of Fabry disease. Expert Opin Biol Ther 2010; 9:631-9. [PMID: 19368525 DOI: 10.1517/14712590902902296] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Fabry disease is an X-linked lysosomal storage disease caused by deficiency of alpha-galactosidase A (alpha-Gal A), encoded by the GLA gene. The deficiency causes accumulation of neutral glycosphingolipids in various tissues, leading to neuronopathic pain, progressive renal dysfunction, cardiomyopathy and stroke. Enzyme replacement therapy (ERT) with agalsidase alfa (Replagal, Shire Human Genetic Therapies) is approved for use by 40 countries, but not the US. OBJECTIVE To evaluate agalsidase alfa in therapy of Fabry disease. METHODS An examination of relevant reports. RESULTS/CONCLUSIONS Clinical trials data, along with experience of the treatment collected through participation of treating physicians in a world-wide Fabry disease registry, have demonstrated that it improves pain and stabilizes renal function, as well as cardiomyopathy, in some patients. More data are needed to evaluate the role of treatment with this drug in the prevention of stroke and adverse cardiac events, and its overall effect on the lifespan and quality of life of affected individuals.
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Affiliation(s)
- Chantal F Morel
- Department of Medicine, University Health Network and Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.
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Inner ear pathology of alpha-galactosidase A deficient mice, a model of Fabry disease. Auris Nasus Larynx 2009; 37:274-80. [PMID: 19900774 DOI: 10.1016/j.anl.2009.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 07/05/2009] [Accepted: 08/11/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Fabry disease is characterized by genetic alpha-galactosidase A deficiency, resulting in accumulation of glycolipids (GL-3) and tissue damage. Hearing loss is also common and attributed to GL-3 accumulation in the inner ear. The only reported histological studies dealt with murine and human specimens. Accordingly, histopathological studies of the cochlea were performed on an alpha-galactosidase A deficient murine model of Fabry disease, using C57BL6/J mice as the controls. METHODS The hearing ability was evaluated using the ABR threshold, while cochlear specimens were observed light microscopically and ultrathin temporal bone sections by TEM. RESULTS HE staining showed no accumulation of GL-3 or abnormal cochlear morphology in the alpha-galactosidase A deficient mice, but toluidine blue staining and TEM revealed GL-3 accumulation in the stria vascularis and kidney. No GL-3 accumulation was detected in the C57BL6/J controls by either HE staining or TEM. The alpha-galactosidase A deficient mice and the controls showed no clear differences in the ABR threshold (hearing acuity), but for older animals the threshold was higher in the C57BL6/J controls. CONCLUSION In summary, although the alpha-galactosidase A deficient mice showed no clear hearing loss, GL-3 accumulation was demonstrated in the cochlea.
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Hoffmann B, Mayatepek E. Fabry disease-often seen, rarely diagnosed. DEUTSCHES ARZTEBLATT INTERNATIONAL 2009; 106:440-7. [PMID: 19623315 DOI: 10.3238/arztebl.2009.0440] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2008] [Accepted: 12/18/2008] [Indexed: 12/27/2022]
Abstract
BACKGROUND Data obtained from screened newborns and from persons at known risk for Fabry disease suggest that this condition is much more common in Germany than previously assumed. Its clinical manifestations are very diverse, and its differential diagnosis is correspondingly broad. Thus, there is often a delay before the diagnosis of Fabry disease is established. METHODS Selective literature search with special attention to studies of large groups of patients with respect to clinical manifestations, diagnostic evaluation, and treatment. RESULTS The number of patients carrying the diagnosis of Fabry disease in Germany lies far below what would be expected from published prevalence figures from other countries. Angiokeratoma, acroparesthesia, hypertrophic cardiomyopathy, impaired sweating and corneal opacification (cornea verticillata) are typical manifestations of Fabry disease; many patients also have other, nonspecific complaints, such as gastrointestinal disturbances. It has been clearly shown that women can manifest the entire range of clinical manifestations. Studies involving large groups of patients have improved our understanding of hearing impairment and tinnitus in Fabry disease. Therapeutic trials are currently in progress to determine whether enzyme substitution can delay the occurrence of life-threatening sequelae such as progressive renal failure and cerebrovascular events. CONCLUSIONS Fabry disease is still underdiagnosed. The average delay from the onset of symptoms to diagnosis is more than a decade. Treatment with human alpha-galactosidase A produced with genetic technology can improve most of the disease's manifestations.
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Affiliation(s)
- Björn Hoffmann
- Klinik für Allgemeine Pädiatrie, Universitätsklinikum Düsseldorf, Heinrich-Heine-Universität, Düsseldorf, Germany.
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Beck M. Agalsidase alfa for the treatment of Fabry disease: new data on clinical efficacy and safety. Expert Opin Biol Ther 2009; 9:255-61. [PMID: 19236256 DOI: 10.1517/14712590802658428] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Fabry disease is an X-linked disease caused by the deficiency of the lysosomal enzyme alpha-galactosidase A. The lack of enzyme activity leads to progressive depositions of undegraded glycolipids in a great number of organs, resulting in a multisystemic disorder. OBJECTIVES Enzyme replacement therapy is available for patients with Fabry disease. Two enzyme preparations have been approved in the European Union by the European Agency for the Evaluation of Medicinal Products (EMEA): agalsidase beta (Fabrazyme, Genzyme Corporation), produced in Chinese hamster ovary cells; and agalsidase alfa (Replagal, Shire Human Genetic Therapies, Inc.), produced in human cell lines. METHODS This review details the latest reports regarding the clinical efficacy and tolerability of agalsidase alfa in patients with Fabry disease. RESULTS Agalsidase alfa was shown to be effective in treating pain and in reducing heart size in patients with Fabry disease, to stabilize kidney function and to improve hearing, sweating and quality of life. It is able slow down progression of renal failure in patients with end-stage renal disease.
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Affiliation(s)
- Michael Beck
- University of Mainz, Children's Hospital, Langenbeckstrasse 1, 55101 Mainz, Germany.
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Sakurai Y, Kojima H, Shiwa M, Ohashi T, Eto Y, Moriyama H. The hearing status in 12 female and 15 male Japanese Fabry patients. Auris Nasus Larynx 2009; 36:627-32. [PMID: 19261412 DOI: 10.1016/j.anl.2009.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 12/11/2008] [Accepted: 01/04/2009] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Fabry disease (FD) is an x-linked inherited disease that causes a lack of a lysosomal enzyme, alpha-galactosidaseA, leading to cellular accumulation of glycosphingolipids of the whole body. This accumulation in the inner ear causes hearing loss also. However, FD is rare, and the frequency is lower in females than in males. Thus, there have been few comparative studies between women and men for hearing loss in FD. Accordingly, we examined the hearing status of both male and female FD patients and elucidated the similarities and differences. We also analyzed for correlations between the hearing status and renal and heart disorders. METHODS 12 women and 15 men were studied by means of pure tone audiometry, the relationships between the hearing status and the renal and cardiac functions. RESULTS The audiogram type was the flat type in a majority of both women and men, followed by the high type and low type, while the U-shaped type was rare. Examination of the thresholds average showed abnormality in one woman and four men. Comparison to threshold for each age bracket of normal subjects showed abnormality in three women and nine men. No correlations were found between the hearing loss and either the renal or cardiac function. All the patients with renal dysfunction had abnormal hearing. CONCLUSIONS The frequency of hearing loss in FD was higher in men than in women. Also, there may be some relationship between renal function and hearing loss in FD.
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Affiliation(s)
- Yuika Sakurai
- Department of Otorhinolaryngology, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo 105-8461, Japan.
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Abstract
Fabry disease, an X-linked disorder of glycosphingolipids that is caused by the deficiency of alpha-galactosidase A, is associated with dysfunction of many cell types and includes a systemic vasculopathy. As a result, patients have a markedly increased risk of developing small-fiber peripheral neuropathy, stroke, myriad cardiac manifestations and chronic renal disease. Virtually all complications of Fabry disease are non-specific in nature and clinically indistinguishable from similar abnormalities that occur in the context of more common disorders in the general population. Although Fabry disease was originally thought to be very rare, recent studies have found a much higher incidence of mutations of the GLA gene, suggesting that this disorder is under-diagnosed. Although the etiology of Fabry disease has been known for many years, the mechanism by which the accumulating alpha-D-galactosyl moieties cause this multi-organ disorder has only recently been studied and is yet to be completely elucidated. Specific therapy for Fabry disease has been developed in the last few years but its role in the management of the disorder is still being investigated. Fortunately, standard 'non-specific' medical and surgical therapy is effective in slowing deterioration or compensating for organ failure in patients with Fabry disease. All these aspects are discussed in detail in the present review.
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Affiliation(s)
- Raphael Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX 75226, USA.
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Parini R, Rigoldi M, Santus F, Furlan F, De Lorenzo P, Valsecchi G, Concolino D, Strisciuglio P, Feriozzi S, Di Vito R, Ravaglia R, Ricci R, Morrone A. Enzyme replacement therapy with agalsidase alfa in a cohort of Italian patients with Anderson-Fabry disease: testing the effects with the Mainz Severity Score Index. Clin Genet 2008; 74:260-6. [PMID: 18445046 DOI: 10.1111/j.1399-0004.2008.01012.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Anderson-Fabry disease (AFD) is a rare X-linked disorder caused by lysosomal storage of several glycosphingolipids, affecting virtually all organs and systems. Enzyme replacement therapy (ERT) for AFD has been available since 2001. Due to the highly variable nature of clinical manifestations in patients with AFD, it is very difficult to assess disease progression and the effects of therapy. We used the Mainz Severity Score Index (MSSI) as a measure of disease severity to study the effects of ERT in a population of 30 patients treated with agalsidase alfa for a median of 2.9 years (range, 1.0-6.2 years). Our data show that the MSSI captures the correlation between disease severity and both gender and age (1 - males performing worse than females at baseline and 2 - severity of diseases progresses with age in both sex). Furthermore, after at least 1 year of ERT, total MSSI scores were significantly lower than those at baseline (p < 0.001), suggesting a marked clinical improvement under ERT. In conclusion, the MSSI is a sensitive and useful tool for monitoring disease progression and assessing the effects of ERT in a population of patients from different treatment centres.
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Affiliation(s)
- R Parini
- Rare Metabolic Diseases Unit Fondazione Mariani, Pediatric Clinic, Azienda Ospedaliera San Gerardo, Monza, Italy.
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Choi JH, Cho YM, Suh KS, Yoon HR, Kim GH, Kim SS, Ko JM, Lee JH, Park YS, Yoo HW. Short-term efficacy of enzyme replacement therapy in Korean patients with Fabry disease. J Korean Med Sci 2008; 23:243-50. [PMID: 18437007 PMCID: PMC2526436 DOI: 10.3346/jkms.2008.23.2.243] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Fabrazyme has been widely used for treatment of Fabry disease since its approval by the U.S. Food and Drug Administration in 2003. This study was undertaken to assess the short-term efficacy and safety of enzyme replacement therapy (ERT) for Fabry disease in Korea. Eight male patients and three female symptomatic carriers aged 13 to 48 yr were included. Fabrazyme was administered by intravenous infusion at a dose of 1 mg/kg every 2 weeks. Plasma and urine globotriaosylceramide (GL-3) levels, serum creatinine, creatinine clearance, and 24-hr urine protein levels were measured every 3 months. Kidney biopsies, ophthalmologic exams, and pure tone audiometry were performed before and 1 yr after ERT. Kidney function, including serum creatinine, creatinine clearance, and the 24-hr urine protein level, remained stable during ERT. Plasma and urine GL-3 levels were reduced within 3 to 6 months of ERT initiation. Microvascular endothelial deposits of GL-3 were decreased from renal biopsy specimens after 1 yr of treatment. The severity of sensorineural hearing loss and tinnitus did not improve after ERT. ERT is safe and effective in stabilizing renal function and clearing microvascular endothelial GL-3 from kidney biopsy specimen in Korean patients with Fabry disease.
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Affiliation(s)
- Jin-Ho Choi
- Department of Pediatrics, Research Institute for Medical Sciences, Chungnam National University Hospital, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Young Mi Cho
- Department of Pathology, Research Institute for Medical Sciences, Chungnam National University Hospital, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Kwang-Sun Suh
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hye-Ran Yoon
- Medical Genetics Clinic and Laboratory, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gu-Hwan Kim
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Su Kim
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Min Ko
- Biomedical and Pharmaceutical Analysis Laboratory, Department of Analytical Chemistry, School of Pharmacy, Duksung Women's University, Seoul, Korea
| | - Joo Hoon Lee
- Biomedical and Pharmaceutical Analysis Laboratory, Department of Analytical Chemistry, School of Pharmacy, Duksung Women's University, Seoul, Korea
| | - Young Seo Park
- Biomedical and Pharmaceutical Analysis Laboratory, Department of Analytical Chemistry, School of Pharmacy, Duksung Women's University, Seoul, Korea
| | - Han-Wook Yoo
- Biomedical and Pharmaceutical Analysis Laboratory, Department of Analytical Chemistry, School of Pharmacy, Duksung Women's University, Seoul, Korea
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Hoffmann B, Schwarz M, Mehta A, Keshav S. Gastrointestinal symptoms in 342 patients with Fabry disease: prevalence and response to enzyme replacement therapy. Clin Gastroenterol Hepatol 2007; 5:1447-53. [PMID: 17919989 DOI: 10.1016/j.cgh.2007.08.012] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Fabry disease is an X-linked deficiency of alpha-galactosidase A, resulting in lysosomal deposition of globotriaosylceramide in nearly all tissues. The disease frequently causes diarrhea and abdominal pain, which are assumed to arise from malfunction of enteric neurons and which mimic diarrhea-predominant irritable bowel syndrome (IBS). There are limited data about the prevalence and nature of gastrointestinal symptoms in patients with Fabry disease and the response to enzyme replacement therapy (ERT) in large cohorts. The aims of this study were to evaluate the nature and prevalence of gastrointestinal symptoms and their impact on health-related quality of life (HRQoL) in patients with Fabry disease and to analyze changes after 12 and 24 months of treatment with agalsidase alfa. METHODS Information about gastrointestinal symptoms was obtained from regular interviews before and during the time of ERT. Data on HRQoL were collected by using the EQ-5D questionnaire. RESULTS The overall prevalence of gastrointestinal symptoms was 52%, with abdominal pain and diarrhea being most frequent. Female patients were more frequently affected than male patients, and there was a high prevalence in children (abdominal pain, 49.3%; diarrhea 25.4%). ERT with agalsidase alfa reduced the prevalence of abdominal pain, with a statistically significant decrease in male patients and in children after 12 months of treatment. CONCLUSIONS The gastrointestinal symptomatology of Fabry disease is very similar to diarrhea-predominant IBS; however, pathophysiologic similarities remain to be elucidated. ERT reduced the prevalence of gastrointestinal symptoms in Fabry disease, particularly in children and male patients.
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Affiliation(s)
- Bjoern Hoffmann
- Department of General Pediatrics, University Children's Hospital, Heinrich-Heine-University, Duesseldorf, Germany
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Ries M, Clarke JT, Whybra C, Mehta A, Loveday KS, Brady RO, Beck M, Schiffmann R. Enzyme replacement in Fabry disease: pharmacokinetics and pharmacodynamics of agalsidase alpha in children and adolescents. J Clin Pharmacol 2007; 47:1222-30. [PMID: 17698592 DOI: 10.1177/0091270007305299] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This multicenter, open-label study evaluated pharmacokinetics, pharmacodynamics, and safety of agalsidase alpha in pediatric compared with adult patients with Fabry disease. The pharmacokinetic parameters of pediatric patients (19 boys, 5 girls, 6-18 years old; mean age, 11.8 years) were compared to those of adult male and female patients who participated in other clinical studies. All patients received agalsidase alpha at a dose of 0.2 mg/kg infused over 40 minutes every other week. Agalsidase alpha exhibited a biphasic serum elimination profile with a maximum serum concentration at the end of the 40-minute infusion; <1% of the maximum concentration was detected 8 hours after dosing. In children, serum clearance was 2.0 to 9.4 mL/min/kg and tended to decrease with increasing age. The average clearance in children, 3.7 +/- 1.5 mL/min/kg (mean +/- SD), was significantly greater than that measured in 33 adults (2.3 +/- 0.7 mL/min/kg, P < .0001). Mean terminal elimination half-life of agalsidase alpha was prolonged in week 25 compared with baseline (150 vs 66 minutes) in 8 of 19 male children. The magnitude of the reduction of plasma globotriaosylceremide was similar in all age groups and was independent of area under the curve and other pharmacokinetic parameters. Except for clearance in younger patients, agalsidase alpha appears to have comparable pharmacokinetic and pharmacodynamic profiles in pediatric and adult Fabry patients of both genders.
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Affiliation(s)
- Markus Ries
- Developmental and Metabolic Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Building 10, Room 3D03, 9000 Rockville Pike, Bethesda, MD 20892-1260, USA
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Lidove O, Bekri S, Goizet C, Khau Van Kien A, Aractingi S, Knebelmann B, Choukroun G, Tsimaratos M, Redonnet-Vernhet I, Lacombe D, Jaussaud R. Maladie de Fabry: propositions d'ungroupe d'experts français concernant le diagnostic, le traitement et le suivi des patients. Presse Med 2007; 36:1084-97. [PMID: 17276649 DOI: 10.1016/j.lpm.2007.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fabry disease is a rare and under-recognized disease associated with an altered X-linked gene controlling hydrolase alpha-galactosidase A activity. This mutation impairs the glycosphingolipid metabolism. A multisystemic disease with a highly variable clinical presentation, its principal symptom is acroparesthesia. Manifestations of Fabry disease occur mostly in hemizygous males but also in heterozygous females. Before enzyme replacement therapy was available, life expectancy was about 50 years in men and 70 years in women. Early diagnosis is essential to prevent irreversible organ damage. Diagnosis is based on an assay of alpha-galactosidase A activity in male patients and on genetic analysis in female patients. Prognosis is related principally to three complications: involvement of the central nervous system, kidneys, and heart. Management of Fabry patients should in all cases combine symptomatic therapy and regular clinical, laboratory and morphological follow-up by specialists in genetic metabolic diseases. Enzyme replacement therapy should be considered in all adult male patients and should probably begin early. In adult heterozygous female patients and in children, this treatment should be considered only for patients with severe pain, organ damage, or central nervous system, kidney, or heart involvement. After a proband is identified, a genealogical tree should be used to identify other affected members of the family.
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43
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Sergi B, Conti G. Hearing loss in a family affected by Fabry disease. J Inherit Metab Dis 2007; 30:370-4. [PMID: 17487569 DOI: 10.1007/s10545-007-0523-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2006] [Revised: 03/07/2007] [Accepted: 03/09/2007] [Indexed: 01/15/2023]
Abstract
Fabry disease is an inborn error of metabolism due to deficient activity of the lysosomal enzyme alpha-galactosidase A. The enzyme defect leads to the systemic accumulation of neutral glycosphingolipids in tissues. Otological manifestations consist of hearing loss and mild vestibular disorders. In this report we describe a family of five members affected by Fabry disease with four subjects showing inner ear involvement.
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Affiliation(s)
- Bruno Sergi
- Clinic of Otorhinolaryngology, Catholic University of Scared Heart of Rome, Largo F Vito 1, 00168, Rome, Italy.
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Hollak CEM, Vedder AC, Linthorst GE, Aerts JMFG. Novel therapeutic targets for the treatment of Fabry disease. Expert Opin Ther Targets 2007; 11:821-33. [PMID: 17504019 DOI: 10.1517/14728222.11.6.821] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Fabry disease is an X-linked lysosomal storage disorder resulting from deficient activity of alpha-galactosidase A. The traditional concept that is used to explain the complications of the disease involves progressive accumulation of globotriaosylceramide in endothelial and smooth muscle cells, resulting in vascular damage. Clinically, progressive renal insufficiency, cardiac involvement and brain pathology evolves. Two pharmaceutical companies have developed enzyme replacement therapy in Fabry disease. Although the first clinical trials showed great promise, it is clear that long-term effects are not as robust as was anticipated. Stabilisation of renal function and decreases in cardiac hypertrophy has been observed, but some patients may experience progressive complications. As there are recent indications that serum components contribute to the pathophysiology of Fabry disease, fundamental studies are needed to unravel the precise role and identity of these factors. Combination of these basic studies with clinical follow up may ultimately reveal when the 'point of no return' is reached. Advanced renal insufficiency seems to be a clinical indicator of lack of response, but other signs and symptoms are probably related to adverse outcome. It is anticipated that in the future controlled studies in early symptomatic or presymptomatic patients will be required. In addition, alternative strategies such as substrate reduction or chaperone therapy, either alone or in combination with enzyme replacement therapy, should be explored. Because Fabry disease is rare, collaborative efforts should be undertaken and openness of data should be strived for.
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Affiliation(s)
- Carla E M Hollak
- Academic Medical Center, Department of Internal Medicine, Division of Endocrinology and Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
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Abstract
BACKGROUND Fabry disease is an X-linked lysosomal storage disease involving deficient activity of alpha-galactosidase A, which leads initially to pain, and later to renal insufficiency, cardiomyopathy and stroke. Until now few details are available on hearing impairment in patients with Fabry disease, and especially few relating to female patients. PATIENTS AND METHODS We examined 43 female and 29 male patients. In this study we looked into the question of whether and to what extent patients of both genders are affected by hearing impairment. RESULTS Hearing loss is characteristic being more severe at high frequencies frequencies. Overall, 22 female and 15 male patients were found to have suffered a hearing loss. Patients with severe symptoms of Fabry disease usually demonstrate more prominent hearing losses. CONCLUSIONS Both men and women with Fabry disease are affected by hearing impairment. It seems that the hearing loss is less marked in female than in male patients. Children with Fabry disease complain of tinnitus more frequently than other children and quite early in the course of the disease.
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Affiliation(s)
- A Limberger
- Klinik für HNO und Kommunikationsstörungen, Universitätsklinik Mainz, Mainz.
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46
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Sirrs SM, Clarke JT. Agalsidase alfa therapy for Fabry disease. Expert Rev Endocrinol Metab 2007; 2:147-154. [PMID: 30754174 DOI: 10.1586/17446651.2.2.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Fabry disease is a lysosomal storage disorder that results in neuropathic pain, progressive renal dysfunction, cardiomyopathy and stroke in affected individuals. The disease is caused by mutations in the GLA gene coding for α galactosidase A. The resulting deficiency of this enzyme causes accumulation of neutral glycosphingolipids in various tissues. Recombinant human agalsidase alfa has been developed to treat patients with Fabry disease. Preliminary data on this form of enzyme replacement therapy suggest that it improves pain, stabilizes renal function and improves cardiac hypertrophy in some patients. More data are needed on the ability of this therapy to prevent cardiac events, stroke and death.
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Affiliation(s)
- Sandra M Sirrs
- a Diamond Health Care Center, Adult Metabolic Diseases Clinic, 4th Floor, 2775 Laurel Street, Vancouver, BC, Canada; University of British Columbia, Division of Endocrinology, Department of Medicine, Vancouver, BC, Canada.
| | - Joe Tr Clarke
- b Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8; Centre Hospitalier Universitaire de Sherbrooke, 3001 12e ave Nord, Sherbrooke, Québec, Canada J1H 5N4. ;
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Lidove O, Joly D, Barbey F, Bekri S, Alexandra JF, Peigne V, Jaussaud R, Papo T. Clinical results of enzyme replacement therapy in Fabry disease: a comprehensive review of literature. Int J Clin Pract 2007; 61:293-302. [PMID: 17263716 DOI: 10.1111/j.1742-1241.2006.01237.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Enzyme replacement therapy (ERT) has been used to treat Fabry disease - a progressive lysosomal storage disorder - since 2001. Two preparations of the enzyme alpha-galactosidase A are available in Europe: agalsidase alpha, produced in a human cell line, and agalsidase beta, produced in Chinese hamster ovary cells. To review critically the published evidence for the clinical efficacy of these two enzyme preparations. A systematic literature search was undertaken to identify open or randomised controlled trials published on Fabry disease since 2001. Eleven trials fulfilled the criteria for inclusion in this review, of a total of 586 references on Fabry disease. To date, no direct comparisons exists between the two available enzyme preparations. Significant clinical benefits compared with placebo, however, have been demonstrated with ERT, with positive effects on the heart, kidneys, nervous system and quality of life. The quality of most of these publications was less than optimal. Further prospective studies are required to confirm the long-term clinical benefits of ERT. More studies are also needed on the effects of ERT in women and on the use of ERT early in the course of Fabry disease, to prevent organ damage. Large national and international outcomes databases will also be invaluable in evaluating treatment effects and safety.
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Affiliation(s)
- O Lidove
- Department of Internal Medicine, Faculté de Médecine Xavier Bichat, Bichat Hospital, Université Paris 7, Paris, France.
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Rivera Gallego A, López Rodríguez M, Barbado Hernández FJ, Barba Romero MA, García de Lorenzo Y Mateos A, Pintos Morelle G. [Fabry disease in Spain: first analysis of the response to enzyme replacement therapy]. Med Clin (Barc) 2007; 127:481-4. [PMID: 17043001 DOI: 10.1157/13093265] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND OBJECTIVE Fabry disease is a X-linked lysosomal disorder caused by a deficient activity of the enzyme alfa-galactosidase A. Lack of enzyme activity results in progressive accumulation of globotriaosylceramide (Gb3) leading to multiorgan dysfunction and early death. Enzyme replacement therapy (ERT) has recently become available and the database Fabry Outcome Survey (FOS) of Spain gives us the opportunity to asses the efficacy of this therapy. Our objective is to describe the safety and the effects on renal, cardiac and neurological (pain) aspects of ERT with agalsidase alfa. PATIENTS AND METHOD The effects of 1, 2, 3 and 4 years of ERT with agalsidase alfa on renal function (assessed by estimated glomerular filtration rate), proteinuria, heart size (assessed by echocardiography), arrhythmias, cardiac valvular anomalies and pain (assessed by the need of concomitant pain therapy) were analyzed in 33 patients under treatment. Safety of ERT was assessed by the reported infusion-related reactions in FOS. RESULTS Overall, treatment with agalsidase alfa stabilized renal function, but the final result depends on the onset of ERT: there is a tendency to stabilization of renal function in those patients with mild deterioration of renal function, a tendency to improve in those patients with moderate deterioration and to worse in those with severe deterioration of renal function. Proteinuria and left ventricular heart size also estabilized under ERT, and pain improved. TSE infusion-related reactions occurred with an incidence of 0.7%. CONCLUSIONS ERT with agalsidase alfa is safe and stabilized the abnormal clinical parameters observed in patients with Fabry disease.
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Affiliation(s)
- Alberto Rivera Gallego
- Servicio de Medicina Interna. Complexo Hospitalario Universitario de Vigo. Vigo. Pontevedra. España.
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Ries M, Kim HJ, Zalewski CK, Mastroianni MA, Moore DF, Brady RO, Dambrosia JM, Schiffmann R, Brewer CC. Neuropathic and cerebrovascular correlates of hearing loss in Fabry disease. Brain 2006; 130:143-50. [PMID: 17105746 PMCID: PMC1950668 DOI: 10.1093/brain/awl310] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Fabry disease, OMIM 301500, is a progressive multisystem storage disorder due to the deficiency of alpha-galactosidase A (GALA). Neurological and vascular manifestations of this disorder with regard to hearing loss have not been analysed quantitatively in large cohorts. We conducted a retrospective cross sectional analysis of hearing loss in 109 male and female patients with Fabry disease who were referred to and seen at the Clinical Center of the National Institutes of Health, Bethesda, MD, USA on natural history and enzyme replacement study protocols. There were 85 males aged 6-58 years (mean 31 years, SD 13) and 24 females aged 22-72 years (mean 42 years, SD 12). All patients underwent a comprehensive audiological evaluation. In addition, cerebral white matter lesions, peripheral neuropathy, and kidney function were quantitatively assessed. HL(95), defined as a hearing threshold above the 95th percentile for age and gender matched normal controls, was present in 56% [95% CI (42.2-67.2)] of the males. Prevalence of HL(95) was lower in the group of patients with residual GALA enzyme activity compared with those without detectable activity (33% versus 63%) HL(95) was present in the low-, mid- and high-frequency ranges for all ages. Male patients with HL(95) had a higher microvascular cerebral white matter lesion load [1.4, interquartile range (IQR) 0-30.1 +/- versus 0, IQR 0-0], more pronounced cold perception deficit [19.4 +/- 5.5 versus 13.5 +/- 5.5 of just noticeable difference (JND) units] and lower kidney function [creatinine: 1.6 +/- 1.2 versus 0.77 +/- 0.2 mg/dl; blood urea nitrogen (BUN): 20.1 +/- 14.1 versus 10.3 +/- 3.28 mg/dl] than those without HL(95) (P < 0.001). Of the females, 38% had HL(95). There was no significant association with cold perception deficit, creatinine or BUN in the females. Word recognition and acoustic reflexes analyses suggested a predominant cochlear involvement. We conclude that hearing loss involving all frequency regions significantly contributes to morbidity in patients with Fabry disease. Our quantitative analysis suggests a correlation of neuropathic and vascular damage with hearing loss in the males. Residual GALA activity appears to have a protective effect against hearing loss.
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Affiliation(s)
- M Ries
- Developmental and Metabolic Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-1260, USA
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50
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Jardim LB, Gomes I, Netto CBO, Nora DB, Matte US, Pereira F, Burin MG, Kalakun L, Giugliani R, Becker J. Improvement of sympathetic skin responses under enzyme replacement therapy in Fabry disease. J Inherit Metab Dis 2006; 29:653-9. [PMID: 16972173 DOI: 10.1007/s10545-006-0339-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 04/22/2006] [Accepted: 06/06/2006] [Indexed: 11/29/2022]
Abstract
AIM To report the effect of enzyme replacement therapy (ERT) in sympathetic skin responses (SSR) of patients with Fabry disease. PATIENTS AND METHODS Seven male patients were included in an open-label protocol using agalsidase-alfa, continued at regular intervals. Five patients completed 24 months of ERT and two of them completed 18 months. Two main measurements were performed at baseline, as well as 1 and 2 years after ERT: (1) a standard neurological examination (NE), with a detailed evaluation of the sensory perception of light touch, pinprick, cold, hot, and vibratory stimuli; (2) the SSR amplitudes. RESULTS Although there were no significant differences between NE in this time period, all patients reported general improvement in their subjective reports of acroparaesthesia and sweating. Before starting ERT, the SSR amplitudes were either too small (3/7 patients) or absent (4/7 patients): the average (range) amplitude of 122 microV (0 through 492) was statistically smaller than that found in a control group, i.e. 1453.6 microV (619.7-2754) (p<0.0001, t-test). Mean +/- SD SSR amplitude increased to 1088+/- 690 microV in the second year of ERT, reaching the range found in a normal control group (p=0.004). CONCLUSION ERT improved SSR continuously in Fabry patients in 2 years of observation. Although the mechanism of the SSR improvement is unknown, this response to ERT can be clinically significant if it reflects a normalization in sweating.
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Affiliation(s)
- L B Jardim
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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