This is a multicenter open label pilot study to evaluate the efficacy of fenofibrate in 20 patients with PBC treated for 1 year. A randomized design would not be feasible at this stage of the research. Two sites are enrolling patients: University of Florida, Gainesville, and Mayo Clinic Rochester, with the first as the coordinating site. The total number of patients to start treatment will not exceed 20. Our endpoints are 1) surrogate markers of disease activity -serum alkaline phosphatase and immunoglobulin M; 2) a well validated prognostic index -Mayo risk score and 3) the NIDDK quality of life questionnaire.