This is a phase II, double-blinded, placebo-controlled study to investigate the safety, efficacy, and pharmacokinetic profile of two doses of EPA-E in adult subjects with NASH. Subjects are required to have a liver biopsy with proven NASH in the 6 month period prior to screening. Up to 70 subjects will be enrolled into each treatment arm in a 1:1:1 ratio, for a total of 210 subjects. Subjects will be stratified at randomization by presence or absence of diabetes. Duration of treatment is 12 months.