Developments in the treatment of chronic hepatitis C

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Abstract
Hepatitis C virus is the most common chronic, blood-bourne infection, affecting 170 million people worldwide, approximately 3% of the global population. Of those infected with hepatitis C virus, 50 – 85% will develop chronic hepatitis C. Although hepatitis C is primarily a disease of the liver, a diagnosis is currently defined by the presence of the hepatitis C virus and treatment success is defined by the clearance of the virus. IFN-α is currently the mainstay of chronic hepatitis C therapy; the antiviral and anti-inflammatory components of IFN target both the infectious and the hepatic manifestations of the disease. However, even in combination with ribavirin, interferon therapy is not fully efficacious. Recently, the search for a more effective treatment has led investigators to optimise interferon therapy by developing pegylated interferons. Challenges facing our current treatment of hepatitis C virus include lack of efficacy in patients with difficult-to-treat disease, such as patients with cirrhosis...