Health Dictionary
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Pegylated interferon alfa-2a microbiology
Introduction
Microbiology
Microbiology
Antiviral Activity in Cell Culture
In the stable HCV cell culture model system (HCV replicon), ribavirin inhibited autonomous HCV RNA replication with an effective concentration (EC50) value of 11-21 mcm. In the same model, PEG-IFN α-2a also inhibited HCV RNA replication, with an EC50 value of 0.1-3 ng/mL. The combination of PEG-IFN α-2a and ribavirin was more effective at inhibiting HCV RNA replication than either agent alone.
Resistance
Different HCV genotypes display considerable clinical variability in their response to PEG-IFN-α and ribavirin therapy. Viral genetic determinants associated with the variable response have not been definitively identified.
Cross-resistance
Cross-resistance between IFN-α and ribavirin has not been observed.[1]
References
References
- ↑ “http://www.accessdata.fda.gov/drugsatfda_docs/label/2011/103964s5204lbl.pdf” (PDF). External link in
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Adapted from the FDA Package Insert.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]