Peginterferon Alfa-2b Therapy in Acute Hepatitis C: Impact of Onset of Therapy on Sustained Virologic Response
Kamal, Sanaa M.; Fouly, Amr E.; Kamel, Refaat R.; Hockenjos, Bridgette; Al Tawil, Ahmed; Khalifa, Khalifa; He, Qi; Koziel, Margaret J.; El Naggar, Khairy M.; Rasenack, Jens; Afdhal, Nezam H.;
Abstract
Background & Aims: Pegylated interferon therapy has not been adequately evaluated in acute hepatitis C virus (HCV) infection. This randomized trial assessed the efficacy, safety, and timing of pegylated interferon alfa-2b for treatment of acute hepatitis C. Methods: One hundred seventy-five patients acutely infected with HCV were screened. Patients whose infection did not spontaneously resolve by week 8 were randomized to once weekly peginterferon alfa-2b monotherapy (1.5 μg/kg per week) started at weeks 8, 12, or 20 for a duration of 12 weeks. The primary endpoint was undetectable HCV RNA 24 weeks after the end of treatment (sustained virologic response [SVR]). All patients were followed for 48 weeks after cessation of therapy. Results: One hundred twenty-nine subjects started treatment at week 8 (group A, n = 43), week 12 (group B, n = 43), or week 20 (group C, n = 43). By using an intent-to-treat analysis, the overall SVR rate was 87%. The SVR rates were 95%, 92%, and 76% with treatment onset at 8, 12, and 20 weeks, respectively. Overall, SVR rates were better for patients infected with genotypes 2, 3, and 4 than those infected with genotype 1. Earlier initiation of therapy improved SVR rates for patients infected with genotype 1 with high viral load. Peginterferon alfa-2b was well tolerated. Subjects with SVR maintained undetectable HCV RNA 48 weeks after therapy. Conclusions: Peginterferon alfa-2b monotherapy in acute hepatitis C induces high sustained virologic response rates, prevents chronic evolution, and is well tolerated. Initiation of treatment at week 8 or 12 results in higher sustained virologic rates than initiation at week 20. © 2006 by the American Gastroenterological Association Institute.
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Title | Peginterferon Alfa-2b Therapy in Acute Hepatitis C: Impact of Onset of Therapy on Sustained Virologic Response | Authors | Kamal, Sanaa M. ; Fouly, Amr E. ; Kamel, Refaat R. ; Hockenjos, Bridgette ; Al Tawil, Ahmed ; Khalifa, Khalifa ; He, Qi ; Koziel, Margaret J. ; El Naggar, Khairy M. ; Rasenack, Jens ; Afdhal, Nezam H. | Issue Date | 2006 | Journal | Gastroenterology | DOI | 3 632 https://api.elsevier.com/content/abstract/scopus_id/33644857481 130 10.1053/j.gastro.2006.01.034 |
PubMed ID | 130 | Scopus ID | 2-s2.0-33644857481 |
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