Evaluate the safety and tolerance of multiple subcutaneous injections of SHR-2173 in ITP patients
Participants must fully understand the trial content, procedures, and potential adverse reactions, and voluntarily sign a written informed consent form (ICF).
Age at signing the ICF must be ≥ 18 years (including the boundary value), regardless of gender.
Confirmed diagnosis of primary ITP for at least 3 months at screening.
Previous treatment with corticosteroids.
Diagnosis of secondary thrombocytopenia or concomitant autoimmune hemolytic anemia
Received platelet transfusion, whole blood transfusion, plasma exchange, or any other emergency treatment drugs within 14 days prior to the first infusion of SHR-2173
Received immunosuppressants (other than corticosteroids) such as Janus kinase [JAK] inhibitors or Bruton tyrosine kinase [BTK] inhibitors within either 5 times the drug elimination half-life or 14 days prior to the first infusion of SHR-2173 (whichever is longer)
Previous treatment with SHR-2173