What is the role of genetic testing in the management of hepatitis C (hep C) infection?

Updated: Oct 07, 2019
  • Author: Vinod K Dhawan, MD, FACP, FRCPC, FIDSA; Chief Editor: BS Anand, MD  more...
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In addition to HCV genotype, a growing body of research indicates that patient genetics play a role in the response to treatment. The single-nucleotide polymorphism (SNP) rs12979860, located near the IL28B gene on chromosome 19, which encodes type III interferon, is associated with more than a two-fold difference in the rate of sustained virologic response (SVR) to antiviral treatment with pegylated interferon and ribavirin. This SNP can be detected by PCR and is an independent predictor of SVR regardless of HCV genotype. [66]

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