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Pisani A, Wilson KM, Batista JL, Kantola I, Ortiz A, Politei J, Al-Shaar L, Maski M, Crespo A, Ponce E, Linhart A. Clinical outcomes in patients switching from agalsidase beta to migalastat: A Fabry Registry analysis. J Inherit Metab Dis 2024. [PMID: 38961737 DOI: 10.1002/jimd.12773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 06/03/2024] [Accepted: 06/19/2024] [Indexed: 07/05/2024]
Abstract
Fabry Registry data were analyzed among 83 agalsidase beta-treated patients with Fabry disease who switched to migalastat. Outcomes (estimated glomerular filtration rate [eGFR], urine protein-creatinine ratio [UPCR], plasma globotriaosylceramide [GL-3], plasma globotriaosylsphingosine [lyso-GL-3], interventricular septal wall thickness [IVST], left posterior wall thickness [LPWT], left ventricular mass index [LVMI]) were assessed using linear mixed models to estimate annual change over time in the pre- and postswitch periods. eGFR decreased throughout both periods (preswitch: -0.85 mL/min/1.73 m2/year; postswitch: -1.96 mL/min/1.73 m2/year; both p < 0.0001), with steeper decline postswitch (ppre/post = 0.01) in both classic and late-onset patients. UPCR increased significantly postswitch (ppre/post = 0.003) among classic patients and was stable in both periods among late-onset patients. GL-3 trajectories worsened postswitch across phenotypes (ppre/post = 0.0005 classic, 0.02 late-onset). LPWT was stable preswitch (0.07 mm/year, p = 0.25) and decreased postswitch (-0.51 mm/year, p = 0.0005; ppre/post = 0.0009), primarily among late-onset patients. IVST and LVMI slopes varied significantly by phenotype. Among classic patients, IVST and LVMI were stable and decreasing, respectively preswitch and increasing postswitch (ppre/post = 0.02 IVST, 0.01 LVMI). Among late-onset patients, IVST significantly decreased postswitch (ppre/post = 0.0003); LVMI was stable over time (ppre/post = 0.89). Ultimately, eGFR and GL-3 trajectories worsened postswitch across phenotypes, while UPCR and cardiac measures worsened among classic and stabilized/improved among late-onset patients. These findings indicate variability in long-term outcomes after switching from ERT to migalastat, underscoring the importance of careful monitoring.
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Affiliation(s)
- Antonio Pisani
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | | | | | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, Turku University, Turku, Finland
| | - Alberto Ortiz
- Jiménez Díaz Foundation University Hospital and IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
- Department of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Juan Politei
- Neurology Department, Fundación SPINE, Buenos Aires, Argentina
| | | | | | | | | | - Aleš Linhart
- Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic
- General University Hospital, Prague, Czech Republic
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Pisani A, Pieruzzi F, Cirami CL, Riccio E, Mignani R. Interpretation of GFR slope in untreated and treated adult Fabry patients. Nephrol Dial Transplant 2023; 39:18-25. [PMID: 37442614 DOI: 10.1093/ndt/gfad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Indexed: 07/15/2023] Open
Abstract
Nephropathy is one of the main features of Fabry disease (FD) that leads, in untreated patients with classical mutations, to end-stage renal disease (ESRD) from the third to the fifth decade of life. The availability of a specific treatment modified the natural history of FD; in particular, it was widely reported that enzyme replacement therapy (ERT) is able to slow the progression of the disease. Regarding Fabry nephropathy, several reports have documented an elevated estimated glomerular filtration rate (eGFR) slope in untreated patients as expression of a rapid disease progression towards ESRD. Otherwise, the prompt start of treatment may be beneficial in stabilizing renal function or slowing its decline. Therefore, based on data in the literature about the effects of ERT on eGFR decline and on the evidence supporting the role of eGFR slope as a surrogate endpoint for chronic kidney disease progression, we suggest, in this 'Expert Opinion', that a treatment should be defined effective when eGFR decline is <1 ml/min/1.73 m2/year and not effective when eGFR loss remains ≥3 ml/min/1.73 m2/year (≥2.5 ml/min/1.73 m2/year in females). Moreover, practical clinical recommendations and guidance for Fabry patients suggests that a change in treatment may be appropriate if individualized therapeutic goals are not achieved. Since a dose-dependent efficacy has been demonstrated for ERT, we suggest considering a switch to a higher dose of ERT in symptomatic adult Fabry patients (ages 18-60 years) with an eGFR of 45-90 ml/min/1.73 m2 and treated with a stable dose of ERT for at least 1 year, in which a linear negative slope of eGFR of 3 ml/min/1.73 m2/year for males (2.5 ml/min/1.73 m2/year for females) was observed.
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Affiliation(s)
- Antonio Pisani
- Chair of Nephrology, Department of Public Health, Federico II University of Naples, Naples, Italy
| | - Federico Pieruzzi
- Clinical Nephrology, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | | | - Eleonora Riccio
- Chair of Nephrology, Department of Public Health, Federico II University of Naples, Naples, Italy
| | - Renzo Mignani
- Nephrology, Dialysis and Transplantation, IRCCS S. Orsola University Hospital, University of Bologna, Bologna, Italy
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Linhart A, Dostálová G, Nicholls K, West ML, Tøndel C, Jovanovic A, Giraldo P, Vujkovac B, Geberhiwot T, Brill-Almon E, Alon S, Chertkoff R, Rocco R, Hughes D. Safety and efficacy of pegunigalsidase alfa in patients with Fabry disease who were previously treated with agalsidase alfa: results from BRIDGE, a phase 3 open-label study. Orphanet J Rare Dis 2023; 18:332. [PMID: 37865771 PMCID: PMC10589982 DOI: 10.1186/s13023-023-02937-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/27/2023] [Indexed: 10/23/2023] Open
Abstract
BACKGROUND Pegunigalsidase alfa is a novel, PEGylated α-galactosidase-A enzyme-replacement therapy approved in the EU and US to treat patients with Fabry disease (FD). OBJECTIVE/METHODS BRIDGE is a phase 3 open-label, switch-over study designed to assess safety and efficacy of 12 months of pegunigalsidase alfa (1 mg/kg every 2 weeks) treatment in adults with FD who had been previously treated with agalsidase alfa (0.2 mg/kg every 2 weeks) for ≥ 2 years. RESULTS Twenty-seven patients were screened; 22 met eligibility criteria; and 20 (13 men, 7 women) completed the study. Pegunigalsidase alfa was well-tolerated, with 97% of treatment-emergent adverse events (TEAEs) being of mild or moderate severity. The incidence of treatment-related TEAEs was low, with 2 (9%) discontinuations due to TEAEs. Five patients (23%) reported infusion-related reactions. Overall mean (SD; n = 22) baseline estimated glomerular filtration rate (eGFR) was 82.5 (23.4) mL/min/1.73 m2 and plasma lyso-Gb3 level was 38.3 (41.2) nmol/L (men: 49.7 [45.8] nmol/L; women: 13.8 [6.1] nmol/L). Before switching to pegunigalsidase alfa, mean (standard error [SE]) annualized eGFR slope was - 5.90 (1.34) mL/min/1.73 m2/year; 12 months post-switch, the mean eGFR slope was - 1.19 (1.77) mL/min/1.73 m2/year; and mean plasma lyso-Gb3 reduced by 31%. Seven (35%) out of 20 patients were positive for pegunigalsidase alfa antidrug antibodies (ADAs) at ≥ 1 study timepoint, two of whom had pre-existing ADAs at baseline. Mean (SE) changes in eGFR slope for ADA-positive and ADA-negative patients were + 5.47 (3.03) and + 4.29 (3.15) mL/min/1.73 m2/year, respectively, suggesting no negative impact of anti-pegunigalsidase alfa ADAs on eGFR slope. CONCLUSION Pegunigalsidase alfa may offer a safe and effective treatment option for patients with FD, including those previously treated with agalsidase alfa. TRN: NCT03018730. Date of registration: January 2017.
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Affiliation(s)
- Aleš Linhart
- 2nd Department of Internal Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic.
| | - Gabriela Dostálová
- 2nd Department of Internal Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Kathy Nicholls
- Department of Nephrology, Royal Melbourne Hospital and The University of Melbourne, Parkville, Australia
| | - Michael L West
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Camilla Tøndel
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Nephrology and Rheumatology Unit, Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Ana Jovanovic
- Department of Inherited Metabolic Disease, Salford Royal, Salford, England, UK
| | - Pilar Giraldo
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Hospital de Dia Quiron, Zaragoza, Spain
| | - Bojan Vujkovac
- Department of Internal Medicine, General Hospital Slovenj Gradec, Slovenj Gradec, Slovenia
| | - Tarekegn Geberhiwot
- Department of Diabetes, Endocrinology and Metabolism, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, England, UK
| | | | - Sari Alon
- Protalix Biotherapeutics, Carmiel, Israel
| | | | | | - Derralynn Hughes
- Lysosomal Storage Disorders Unit, Royal Free London NHS Foundation Trust and University College London, London, England, UK
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