A randomized, controlled study of peginterferon lambda-1a/ribavirin +/- daclatasvir for hepatitis C virus genotype 2 or 3
AuthorFoster, GR; Chayama, K; Chuang, W-L; Fainboim, H; Farkkila, M; Gadano, A; Gaeta, GB; Hezode, C; Inada, Y; Heo, J; ...
PublisherSPRINGER INTERNATIONAL PUBLISHING AG
University of Melbourne Author/sThompson, Alexander
AffiliationMedicine (St Vincent's)
Document TypeJournal Article
CitationsFoster, G. R., Chayama, K., Chuang, W. -L., Fainboim, H., Farkkila, M., Gadano, A., Gaeta, G. B., Hezode, C., Inada, Y., Heo, J., Kumada, H., Lu, S. -N., Marcellin, P., Moreno, C., Roberts, S. K., Strasser, S. I., Thompson, A. J., Toyota, J., Paik, S. W. ,... Portsmouth, S. D. (2016). A randomized, controlled study of peginterferon lambda-1a/ribavirin +/- daclatasvir for hepatitis C virus genotype 2 or 3. SPRINGERPLUS, 5 (1), https://doi.org/10.1186/s40064-016-2920-z.
Access StatusOpen Access
BACKGROUND AND PURPOSE: Peginterferon Lambda was being developed as an alternative to alfa interferon for the treatment of chronic hepatitis C virus (HCV) infection. We compared peginterferon Lambda-1a plus ribavirin (Lambda/RBV) and Lambda/RBV plus daclatasvir (DCV; pangenotypic NS5A inhibitor) with peginterferon alfa-2a plus RBV (alfa/RBV) in treatment-naive patients with HCV genotype 2 or 3 infection. METHODS: In this multicenter, double-blind, phase 3 randomized controlled trial, patients were assigned 2:2:1 to receive 24 weeks of Lambda/RBV, 12 weeks of Lambda/RBV + DCV, or 24 weeks of alfa/RBV. The primary outcome measure was sustained virologic response at post-treatment Week 12 (SVR12). RESULTS: Overall, 874 patients were treated: Lambda/RBV, n = 353; Lambda/RBV + DCV, n = 349; alfa/RBV, n = 172. Patients were 65 % white and 33 % Asian, 57 % male, with a mean age of 47 years; 52 % were infected with genotype 2 (6 % cirrhotic) and 48 % with genotype 3 (9 % cirrhotic). In the Lambda/RBV + DCV group, 83 % (95 % confidence interval [CI] 78.5, 86.5) achieved SVR12 (90 % genotype 2, 75 % genotype 3) whereas SVR12 was achieved by 68 % (95 % CI 63.1, 72.9) with Lambda/RBV (72 % genotype 2, 64 % genotype 3) and 73 % (95 % CI 66.6, 79.9) with peginterferon alfa/RBV (74 % genotype 2, 73 % genotype 3). Lambda/RBV + DCV was associated with lower incidences of flu-like symptoms, hematological abnormalities, and discontinuations due to adverse events compared with alfa/RBV. CONCLUSION: The 12-week regimen of Lambda/RBV + DCV was superior to peginterferon alfa/RBV in the combined population of treatment-naive patients with genotype 2 or 3 infection, with an improved tolerability and safety profile compared with alfa/RBV.
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