Overview Leflunomide Treatment for IgG4-RD Status: Unknown status Trial end date: 2020-12-31 Target enrollment: Participant gender: Summary This study is an open-label randomized controlled trial aiming to investigate whether the efficacy and side effect of Leflunpomide plus glucocorticoid. Phase: N/A Details Lead Sponsor: Peking Union Medical College HospitalTreatments: LeflunomidePrednisone