A doctor that want to prescribe predinsone for possible igg4/psc treatment. are there any alternatives to predisone for liver autoimmune disorders?

Best proven Rx: IgG4-associated cholangitis, also known as IgG4-related (sclerosing) cholangitis (IgG4-RSC), is an immune-mediated inflammatory disease characterized by specific changes on biopsy and elevated IgG4 levels. Initial treatment includes high dose prednisone at the time of diagnosis and up to 3 months. Maintenance regimens may use low-dose prednisone (2.5–5 mg/day) and/or azathioprine (1–2 mg/kg/d)