Hematology, blood chemistry, liver function tests, virologic and immunologic measurements will be obtained at baseline (week 0), weeks 4, 12, 24, 36, and 48. In addition to blood chemistry evaluations, fasting blood samples will be obtained at baseline and weeks 24 and 48 for triglycerides, total cholesterol, direct HDL cholesterol and LDL cholesterol. Pancreatic amylase and serum lipase levels will be determined if serum amylase results are >2x ULN (see Section 5.4.2 Laboratory Evaluations).