 - For patients with unknown hepatitis C virus ribonucleic acid HCV antibody status, must be tested during study screening; patients who are tested positive for HCV antibody are excluded from the study if they have inadequately controlled hepatitis C andor Child-Pugh Class B or C cirrhosis; patients with adequately controlled hepatitis are not excluded from the study as defined by having undetectable level of serum HCV antibody level prior to enrollment; patients who are currently on interferon or other anti-HCV therapy will be excluded from study 