Atidarsagene autotemcel for metachromatic leukodystrophy
Copyright 2023 Clarivate..
Metachromatic leukodystrophy (MLD) is a rare autosomal recessive disorder of sphingolipid metabolism, due to a deficiency of the enzyme arylsulfatase A (ARSA). The main clinical signs of the disease are secondary to central and peripheral nervous system demyelination. MLD is subdivided into early- and late-onset subtypes based upon the onset of neurological disease. The early-onset subtype is associated with a more rapid progression of the disease that leads to death within the first decade of life. Until recently, no effective treatment was available for MLD. The blood-brain barrier (BBB) prevents systemically administered enzyme replacement therapy from reaching target cells in MLD. The evidence for the efficacy of hematopoietic stem cell transplantation is limited to the late-onset MLD subtype. Here, we review the preclinical and clinical studies that facilitated the approval of the ex vivo gene therapy atidarsagene autotemcel for early-onset MLD by the European Medicines Agency (EMA) in December 2020. This approach was studied in an animal model first and then in a clinical trial, eventually proving its efficacy in preventing disease manifestations in presymptomatic patients and stabilizing its progression in paucisymptomatic subjects. This new therapeutic consists of patients' CD34+ hematopoietic stem/progenitor cells (HSPCs) transduced with a lentiviral vector encoding functional ARSA cDNA. The gene-corrected cells get reinfused into the patients after a cycle of chemotherapy conditioning.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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Enthalten in: |
Drugs of today (Barcelona, Spain : 1998) - 59(2023), 2 vom: 01. Feb., Seite 63-70 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Messina, Martina [VerfasserIn] |
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Links: |
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Themen: |
Arylsulfatase A (ARSA) mimetics |
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Anmerkungen: |
Date Completed 24.02.2023 Date Revised 24.02.2023 published: Print Citation Status MEDLINE |
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doi: |
10.1358/dot.2023.59.2.3461911 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM35317694X |
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520 | |a Metachromatic leukodystrophy (MLD) is a rare autosomal recessive disorder of sphingolipid metabolism, due to a deficiency of the enzyme arylsulfatase A (ARSA). The main clinical signs of the disease are secondary to central and peripheral nervous system demyelination. MLD is subdivided into early- and late-onset subtypes based upon the onset of neurological disease. The early-onset subtype is associated with a more rapid progression of the disease that leads to death within the first decade of life. Until recently, no effective treatment was available for MLD. The blood-brain barrier (BBB) prevents systemically administered enzyme replacement therapy from reaching target cells in MLD. The evidence for the efficacy of hematopoietic stem cell transplantation is limited to the late-onset MLD subtype. Here, we review the preclinical and clinical studies that facilitated the approval of the ex vivo gene therapy atidarsagene autotemcel for early-onset MLD by the European Medicines Agency (EMA) in December 2020. This approach was studied in an animal model first and then in a clinical trial, eventually proving its efficacy in preventing disease manifestations in presymptomatic patients and stabilizing its progression in paucisymptomatic subjects. This new therapeutic consists of patients' CD34+ hematopoietic stem/progenitor cells (HSPCs) transduced with a lentiviral vector encoding functional ARSA cDNA. The gene-corrected cells get reinfused into the patients after a cycle of chemotherapy conditioning | ||
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