Overview The Research of Standard Diagnosis and Treatment for Severe HSP in Children Status: Recruiting Trial end date: 2020-07-01 Target enrollment: Participant gender: Summary This study is performed to evaluate the efficacy and safety of various measures in the treatment of severe HSP in children. Phase: Phase 2 Details Lead Sponsor: Nanjing Children's HospitalTreatments: BB 1101DexamethasoneDexamethasone 21-phosphateDexamethasone acetategamma-GlobulinsImmunoglobulins, IntravenousRho(D) Immune Globulin