Epidemiological, clinical and therapeutic associations of hepatitis C types in western European patients

Peter Simmonds, Janet Mellor, Antonio Craxi, Jose Maria Sanchez-Tapias, Alfredo Alberti, Jesus Prieto, Massimo Colombo, Maria Grazia Rumi, Oreste Lo Iacano, Sergi Ampurdanes-Mingall, Xavier Forns-Bernhardt, Liliane Chemello, Maria Pilar Civeira, Christopher Frost, Geoffrey M. Dusheiko

Research output: Contribution to journalArticle

Abstract

Background/Aims: Different variants of hepatitis C virus might show different susceptibility to interferon a treatment, but it is important to understand whether this difference in sensitivity reflects an association with other factors, such as cirrhosis or age. Methods: We have used an enzyme-linked immunosorbent hepatitis C virus typing assay based upon the detection of antibody in patient's sera to type-specific NS-4 antigens to investigate the effect of hepatitis C virus type in 610 patients with chronic hepatitis C virus infection. The influence of viral types and their interdependency with host factors were separately analyzed to establish which factors executed an independent effect on the probability of sustained response. Results: There was a marked difference in the distribution of hepatitis C virus types with age: infection with type 3 was more common in younger patients. The distribution of hepatitis C virus type with age is accounted for by differences in risk-factors for infection in different age groups. The frequency of cirrhosis increased markedly with age. Even after standardization for age, center and the presence of cirrhosis, viral type was strongly related to the outcome of infection. Conclusions: Our data suggest that enzyme-linked immunosorbent hepatitis C virus typing could assist in patient selection for interferon treatment to improve sustained response rates. Together with measurement of viral load, hepatitis C virus typing may serve to indicate the probability of response in patients with chronic hepatitis C, and to elucidate antiviral mechanisms in the disease. The serotyping assay provides a relatively inexpensive screening method to determine the infecting hepatitis C virus type, which could facilitate therapeutic decisions and strategies in patients with chronic hepatitis C.

Original languageEnglish
Pages (from-to)517-524
Number of pages8
JournalJournal of Hepatology
Volume24
Issue number5
DOIs
Publication statusPublished - May 1996

Keywords

  • Antiviral
  • Chronic hepatitis
  • Genotypes
  • Hepatitis C
  • Hepatitis C virus
  • Interferon

ASJC Scopus subject areas

  • Gastroenterology

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    Simmonds, P., Mellor, J., Craxi, A., Sanchez-Tapias, J. M., Alberti, A., Prieto, J., Colombo, M., Rumi, M. G., Lo Iacano, O., Ampurdanes-Mingall, S., Forns-Bernhardt, X., Chemello, L., Civeira, M. P., Frost, C., & Dusheiko, G. M. (1996). Epidemiological, clinical and therapeutic associations of hepatitis C types in western European patients. Journal of Hepatology, 24(5), 517-524. https://doi.org/10.1016/S0168-8278(96)80135-8