Early virologic response value as predictive factor of sustained virologic response to treatment with interferon alpha-2b plus ribavirin in chronic hepatitis C patients with or without HIV coinfection

Buenestado-García, J.; Rubio-Rivas, M.; Reñé-Espinet, J.M.; Piñol-Felis, C.; Egido-García, R.ón.; Rubio-Caballero, M.

Medicina Clinica 127(15): 561-566

2006


ISSN/ISBN: 0025-7753
PMID: 17145012
DOI: 10.1157/13093999
Accession: 048853260

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Abstract
The most effective currently available therapy for chronic hepatitis C virus infection is the combination of interferon alpha-2b plus ribavirin both, in patients with human immunodeficiency virus (HIV) coinfection and in patients without coinfection. In an attempt to avoid morbidity and health costs we searched for an indicator of early virologic response (EVR). We evaluated the EVR efficiency at 4 and 12-weeks after the initiation of antiviral combination therapy. A total of consecutive 127 patients with chronic hepatitis C virus infection treated with combination therapy for 12 months in genotypes 1 and 4 and for 6 months in genotypes 2 and 3, were studied, 62 HIV-coinfected and 65 non-coinfected. They were evaluated for sustained virologic response and EVR at 4 and 12-weeks to initial therapy. Sustained virologic response was greater in the non-coinfected group than coinfected group; these differences were significant for genotypes 1 and 4. In both groups EVR had a 100% predictive negative value at 12-weeks after the initiation of therapy in genotypes 1 and 4, however came down in 79% at 4-weeks. The EVR at 12-weeks after the initiation of therapy has a 100% predictive negative value in coinfected and non-coinfected patients. Patient adherence to prescribed antiviral therapy is a predictive value of response.