An Efficacy, Safety and Pharmacokinetics Study of Simeprevir, Daclatasvir and Sofosbuvir in Participants With Chronic Hepatitis C Virus Genotype 1 or 4 Infection and Decompensated Liver Disease

Inclusion Criteria: * Documented chronic Hepatitis C virus (HCV) infection: diagnosis of HCV more than (\>) 6 months before the Screening visit, either by detectable HCV ribonucleic acid (RNA), a HCV positive antibody or the presence of histological changes consistent with chronic hepatitis * HCV genotype 1 or 4 infection and HCV RNA plasma level \>10,000 international unit per milliliter (IU/mL) (both determined at screening) * Presence of cirrhosis, which is defined as a FibroScan with a result of \>14.5 kilopascals (kPa) at Screening * HCV treatment-naive participants: participant has not received treatment with any approved or investigational drug for the treatment of HCV infection and HCV treatment-experienced participants: participant has had at least 1 documented previous course of a non-direct-acting antiviral agent (DAA), interferon (IFN)-based HCV therapy (with or without Ribavirin \[RBV\]). Last dose in this previous course should have occurred at least 2 months prior to Screening * Decompensated liver disease: Panel 1: Child Pugh A (mild hepatic impairment) with evidence of portal hypertension \[confirmed by the presence of esophageal varices on gastroscopy or hepatic venous pressure gradient (HVPG) greater than or equal to (\>=) 10 millimeter of mercury (mm Hg)\], Panel 2: Child-Pugh B (moderate hepatic impairment) 7 to 9 (extremes included) Exclusion Criteria: * Co-infection with any HCV genotype * Co-infection with human immunodeficiency virus (HIV)-1 or -2 …