Cited by 265Metabolism and Genetic DisordersAmino Acid Enzymes and MetabolismNeonatal Health and Biochemistry

Tyrosinaemia type I and NTBC (2‐(2‐nitro‐4‐trifluoromethylbenzoyl)‐1,3‐cyclohexanedione)

Holme, E., Lindstedt, S.·1998·Journal of Inherited Metabolic Disease

Abstract

In tyrosinaemia type I (McKusick 276700), fatal liver disease results either because of liver failure during infancy or early childhood or because of development of hepatocellular carcinoma during childhood or adolescence. This is caused by toxic metabolites which accumulate because of deficiency of fumarylacetoacetase, the last enzyme in the tyrosine catabolic pathway. NTBC is a potent inhibitor of 4‐hydroxyphenylpyruvate dioxygenase and has been shown to efficiently prevent tyrosine degradation, and production of succinylacetone, in patients with tyrosinaemia. Since the first trial of NTBC treatment for tyrosinaemia type I in 1991, over 220 patients have been treated by the drug using a protocol which includes regular follow‐up with reports of clinical and laboratory investigations to the study centre in Gothenburg, where additional analysis of critical variables is done on regularly collected samples. The course of the disease in patients with acute tyrosinaemia has changed dramatically. Only 10% of the patients have not clinically responded to NTBC treatment. In half of these patients, successful liver transplantation has been performed which has further reduced the mortality rate during infancy to 5%. The international NTBC study has now been going for 5 years and data have emerged that indicate a decreased risk for early development of hepatocellular carcinoma in patients who started treatment at an early age. There are now 101 patients aged 2–8 years who have started NTBC treatment before 2 years of age, and no cancer has developed after 2 years of age among these patients. However, there is no safe age with respect to occurrence of liver cancer, which has been recognized at diagnosis at 1 year of age in one patient and after a few months of treatment in an infant who was given NTBC at 5 months of age.

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Crossref · 10.1023/a:1005410820201

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17 of 17 references verified0 citation errors · 0 not checkable

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  • Eye complications do not appear to be common in HT1.

    “Eye complications do not appear to be common [16,39] but periodic eye examination with a slit lamp may be indicated (for example annually).”

    From Recommendations for the management of tyrosinaemia type 1 (2013) · cites this paper as [16]

  • Plasma nitisinone concentrations in individuals are variable.

    “As the plasma concentrations in individuals are variable [16], if rapid assay of plasma nitisinone level is available it may be useful in detecting problems.”

    From Recommendations for the management of tyrosinaemia type 1 (2013) · cites this paper as [16]

  • On standard nitisinone dose 1 mg/kg/d, plasma concentrations that suppress succinylacetone are variable between individuals.

    “On the standard dose of 1 mg/kg/d, the plasma concentrations in individuals that suppress SA are variable [16,20].”

    From Recommendations for the management of tyrosinaemia type 1 (2013) · cites this paper as [16]

  • Nitisinone reduces the risk of long term complications.

    “The risk of long term complications is also reduced [16].”

    From Recommendations for the management of tyrosinaemia type 1 (2013) · cites this paper as [16]

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Authors
Holme, E., & Lindstedt, S.
Affiliations
Sahlgrenska University Hospital (SE)
Venue
Journal of Inherited Metabolic Disease
Publisher
Wiley
Published
1998-08
Volume
21
Issue
5
Pages
507-517
ISSN
  • 0141-8955 (ISSN-L)
  • 1573-2665
OpenAlex
W1567009066
Cited by
264
References
17
Citations by year
2026: 1 · 2025: 6 · 2024: 4 · 2023: 6 · 2022: 9 · 2021: 7 · 2020: 6 · 2019: 10 · 2018: 2 · 2017: 18 · 2016: 7 · 2015: 8 · 2014: 14 · 2013: 11 · 2012: 7
FWCI
5.92
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Inherited Metabolic Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Swedish Cancer Foundation
  • Vetenskapsrådet
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal Health and Biochemistry
Keywords
NTBC, tyrosine catabolism, hepatocellular carcinoma prevention, liver transplantation, succinylacetone, early treatment initiation, treatment response
MeSH terms
Amino Acid Metabolism, Inborn Errors, Animals, Clinical Trials as Topic, Cyclohexanones, Enzyme Inhibitors, Humans, Nitrobenzoates, Tyrosine, 4-Hydroxyphenylpyruvate Dioxygenase

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