Valopicitabine Alone and Together With Pegylated Interferon in Patients With Chronic Hepatitis C Who Have Failed to Respond to Standard Therapy

A Randomized, Phase IIb Clinical Trial to Evaluate the Safety and Antiviral Activity of NM283 and the Combination of Pegylated Interferon Plus NM283, in Patients With Chronic Hepatitis C Who Have Previously Failed to Respond to Standard Therapy

This study is being conducted to compare the safety, effectiveness and tolerance of valopicitabine (NM283) when used alone and when valopicitabine is used together with pegylated interferon in hepatitis C treatment failure patients. These results will be compared against the results of treatment with pegylated interferon plus ribavirin, the current standard therapy for treatment of hepatitis C viral infection.

Inclusion Criteria:

• Documented clinical history compatible with chronic hepatitis C and compensated liver disease
• Failed response to previous hepatitis C therapy of pegylated interferon/ribavirin

Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

• Patient is pregnant or breastfeeding
• Patient is co-infected with hepatitis B or HIV

Other protocol-defined exclusion criteria may apply.