ArticleHepatology international2013
The virological response in Koreans infected with HCV genotype 1 did not differ between groups treated with a full dose or reduced dose (≥80 % full dose) of peginterferon alfa-2a: a prospective randomized multicenter trial.
Article in Hepatology international, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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18 authors at 14 institutions in 1 country.
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Abstract
purposeA high rate of sustained viral response (SVR) in Koreans with chronic hepatitis C (CHC) is related to a favorable IL28B genotype. We compared two dosing strategies for peginterferon alfa-2a in Koreans with CHC and defined the combined effect of polymorphisms and dosing on the virological response.
methodsA total of 178 treatment-naïve patients with CHC genotype 1 were prospectively enrolled. All patients were randomly assigned to treatment with one of two peginterferon alfa-2a regimens: 180 μg per week for 48 weeks (full-dose group) or 180 μg per week during the first 12 weeks followed by 135 μg per week for the next 36 weeks (dose-reduction group). Polymorphisms related to IL28B, ITPA, C20orf194 and SLC29A1 were studied.
resultsSVR rates did not differ between the full-dose and dose-reduction groups (56.5 and 51.2 %, respectively, p = 0.474). The frequency of additional reductions of the peginterferon dose because of adverse events was higher in the full-dose group than in the dose-reduction group. SVR rates in patients homozygous for the IL28B major allele were higher than those in patients for the other IL28B alleles. For patients with unfavorable IL28B genotypes, SVR was less likely to be achieved in the dose-reduction group than in the full-dose group.
conclusionsIn Koreans with HCV genotype 1, the virological response to treatment did not differ between a full dose and reduced dose (≥80 % of full dose) of peginterferon alfa-2a. However, in the patients with unfavorable IL28B genotypes, the full-dose treatment of peginterferon alfa-2a may be beneficial.
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