A Pilot Study of Fenofibrate and Ursodeoxycholic Acid in the Treatment of Newly Diagnosed Primary Biliary Cholangitis

This study is a prospective, single center, randomized controlled, exploratory clinical trial aimed at evaluating the efficacy and safety of fenofibrate in newly diagnosed PBC subjects.

Inclusion Criteria: * Must have provided written informed consent * Age 18-75 years; * BMI 17-28 kg/m2 * Male or female with a diagnosis of PBC, by at least two of the following criteria: 1. History of AP above ULN for at least six months; 2. Positive AMA titers (\>1/40 on immunofluorescence or M2 positive by enzyme linked immunosorbent assay (ELISA) or positive PBC-specific antinuclear antibodies; 3. Documented liver biopsy result consistent with PBC. * Not receiving UDCA treatment before enrollment, ALP\>ULN Exclusion Criteria: * History or presence of other concomitant liver diseases. * ALT or AST \> 5×ULN, TBIL \> 3×ULN. * If female: known pregnancy, or has a positive urine pregnancy test (confirmed by a positive serum pregnancy test), or lactating. * Allergic to fenofibrate or ursodeoxycholic acid. * Taking hepatotoxic drugs (e.g., dapsone, erythromycin, fluconazole, ketoconazole, rifampicin) for more than 2 weeks within 6 months, and long-term hormonal users. * Recurrent variceal bleeding, poorly controlled hepatic encephalopathy or refractory ascites. * Patients with a history of severe cardiac, cerebrovascular, renal, respiratory disease or functional failure, and psychiatric disorders (including those due to alcohol and drug abuse). * Creatinine \>1.5×ULN and creatinine clearance \