Late Relapse After Hepatitis C Virus Treatment Is Rare

Few patients treated with a sofosbuvir-containing regimen for hepatitis C virus infection had late recurrent viremia, and most occurrences appeared to be reinfections.

Use of direct antiviral agents (DAAs) for the treatment of hepatitis C virus (HCV) infection has been associated with sustained viral suppression by 12 weeks after therapy (SVR12) in >90% of patients. Because HCV infection does not confer full protective immunity, it is important to determine the frequency of recurrences after SVR12 is achieved and to distinguish between posttreatment relapse and reinfection.

To explore these issues, researchers in Germany, Russia, France, and the U.S. conducted an industry-supported study, examining samples from 11 phase III trials that used the NS5B inhibitor sofosbuvir, alone or in combination. To distinguish late relapse from reinfection, they conducted NS5B deep sequencing analysis, short-fragment NS5B …

Reviewing Author

Neil M. Ampel, MD

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Editorial BoardsUpToDate

Leadership Positions in Professional SocietiesCoccidioidomycosis Study Group (Past President, Secretary, Treasurer)

Neil M. Ampel, MD

Disclosures

Editorial BoardsUpToDate

Leadership Positions in Professional SocietiesCoccidioidomycosis Study Group (Past President, Secretary, Treasurer)

Late Relapse After Hepatitis C Virus Treatment Is Rare

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Reviewing Author