Safety, Tolerability, PK and PD of SCH 900518 in Naive or Treatment-Experienced Subjects Infected With HCV Genotype 1 (Protocol No. P04695)

"Drug: SCH 900518~Biologic: Peginterferon alfa-2b(PegIntron)~Period 1: Amorphous SCH 900518 800 mg or placebo TID administered as an oral suspension for 7 days .~Period 2: Amorphous SCH 900518 800 mg or placebo TID administered as an oral suspension for 14 days in combination with 1.5 µg/kg PegIntron administered subcutaneously weekly."

"Drug: SCH 900518~Biologic: Peginterferon alfa-2b~Period 1: Amorphous SCH 900518 800 mg or placebo TID administered as an oral suspension for 7 days~Period 2: Amorphous SCH 900518 800 mg or placebo TID administered as an oral suspension for 14 days in combination with 1.5 µg/kg PegIntron administered subcutaneously weekly."

"Drug: SCH 900518~Drug: Ritonavir (RTV)~Biologic: Peginterferon alfa-2b (PegIntron)~Period 1: Amorphous SCH 900518 (400 mg) or placebo BID administered as oral suspension + ritonavir (200 mg BID) (2-100 mg oral capsules) for 7 days.~Period 2: Amorphous SCH 900518 (400 mg) or placebo BID administered as oral suspension+ ritonavir (200 mg BID) (2-100 mg oral capsules) + PegIntron (1.5 µg/kg QW) for 14 days."

"Drug: SCH 900518~Drug: Ritonavir (RTV)~Biologic: Peginterferon alfa-2b (PegIntron)~Period 1, Amorphous SCH 900518 (400 mg) or placebo BID administered as an oral suspension + RTV (200 mg BID) oral capsules (2-100 mg capsules) for 7 days.~Period 2, SCH 900518 (400 mg) or placebo BID as an oral suspension + RTV (200 mg BID) oral capsules (2-100 mg capsules) +PegIntron (1.5 µg/kg SC QW) for 14 days."