An Exploratory Study of Cluster of Differentiation 38 (CD38) Monoclonal Antibody Combined Corticosteroid in Acquired Hemophilia A

Inclusion Criteria: * Patients must meet all enrollment criteria before they can be enrolled: Diagnosed as AHA; Women are postmenopausal women or women of childbearing age with strict contraception; Patients with good compliance Exclusion Criteria: * Patients with any of the following items cannot be enrolled in this study: Congenital hemophilia with inhibitor; Pregnant and lactating women; Who are positive for hepatitis B surface antigen, hepatitis C antibody, HIV antibody (Ⅰ + Ⅱ) and syphilis antibody; Patients with poor compliance; Who cannot use contraception during the trial; Researchers believe that it is not appropriate for patients to participate in any other condition of this trial; Four weeks before entering the group, the patients received immunosuppressive therapy and the inhibitor showed a progressive decreasing trend (the change was less than 50%). Acquired von Willebrand disease