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© Research
Publication : Medecine et maladies infectieuses

New treatments for chronic hepatitis C virus infection

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Medecine et maladies infectieuses - 20 Jul 2011

Corouge M, Pol S

Link to Pubmed [PMID] – 21764234

Med Mal Infect 2011 Nov;41(11):579-87

The treatment of hepatitis C virus infection (HCV) by a combination of pegylated interferon and ribavirin, according to early viral kinetics, leads to a sustained virological response (SVR) in more than 50% of patients with chronic infection. This SVR is a complete recovery of the infection but more than 50% of genotype 1-infected patients do not achieve SVR. A better understanding of the viral cycle, and the characterization of viral enzymes which are potential targets, resulted in the development of new molecules, direct acting antivirals (DAA) targeted against HCV, either specific of genotype 1 (protease inhibitors NS3/NS4A and polymerase inhibitors NS5B) or with a wider spectrum (NS5A or entry inhibitors), and non-specific antivirals (new interferons, cyclophilin inhibitors). We describe the results of phase II and III trials which clearly demonstrated a 20 to 30% increase in the SVR rate of genotype 1-infected patients, either naïve or treatment experienced. These new drugs should be approved by the end of 2011, after a temporary approval for compassionate use in cirrhotic patients with previous relapse or partial response to the combination therapy. In the future, the main limitations of triple therapy will be safety (cutaneous rash or anemia which may be controlled), cost, compliance, viral resistance, and drug interactions that must be avoided by educating patients and physicians.

https://www.ncbi.nlm.nih.gov/pubmed/21764234