Hepatitis C variability, patterns of resistance, and impact on therapy

Cristina Simona Strahotin1, Michael Babich

  • 1Division of Gastroenterology, West Penn Allegheny Health System, 1307 Federal Street, Ste 301, Pittsburgh, PA 15212, USA.

Advances in Virology
|August 2, 2012
PubMed

Insights

Hepatitis C (HCV) treatment advances include new direct antiviral agents, improving cure rates but facing resistance. Future strategies may involve novel drug classes or a vaccine for HCV eradication.

Area of Science:

  • Hepatology and Virology
  • Infectious Diseases
  • Drug Development and Resistance

Background:

  • Hepatitis C virus (HCV) is a primary cause of chronic liver disease, cirrhosis, and liver cancer, frequently necessitating liver transplantation.
  • Despite declining incidence, an aging infected population suggests a growing HCV burden.
  • HCV exhibits resistance to antiviral therapies, highlighting incomplete knowledge and treatment challenges.

Purpose of the Study:

  • To review mechanisms of HCV drug resistance.
  • To analyze traditional and current standard-of-care treatments for Hepatitis C.
  • To explore future therapeutic directions and the potential for HCV vaccine development.

Main Methods:

  • Literature review of HCV resistance mechanisms.
  • Analysis of traditional treatments (PEG-IFN-α and ribavirin).
  • Evaluation of new direct-acting antiviral agents (telaprevir, boceprevir) in triple therapy regimens.

Main Results:

  • New triple therapy regimens combining PEG-IFN-α, ribavirin, and direct antivirals show increased viral cure rates.
  • Treatment failure remains a possibility despite advancements.
  • Emerging drug classes like nucleoside/nucleotide analogues and polymerase inhibitors show promise.

Conclusions:

  • Current HCV treatment has advanced with triple therapy, but challenges like resistance persist.
  • Future HCV treatment may mirror HIV therapy, utilizing novel drug classes.
  • Development of an HCV vaccine is crucial for cost-effective disease eradication.

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