Clinical Research Directory

Inclusion Criteria: * Participants must be 18 years old or older, with no gender restrictions; * First-time allogeneic hematopoietic stem cell transplantation patients; * Platelet count between 20×10\*9/L ; * Absence of peripheral blood platelet transfusions in the three days prior to receiving human-induced pluripotent stem cell-derived platelets; * ECOG score of ≤ 2; * Participants and/or their guardians (if applicable) must comprehend and sign the informed consent form. Exclusion Criteria: * History of ineffective platelet transfusion ; * Platelet antibody positive, and/or donor-specific antibody (DSA) positive ； * Individuals with severe transfusion related allergic reactions in the past; Patients with recurrent malignant hematological tumors that have not yet improved; * Within 7 days prior to receiving the investigational drug; * Patients with existing severe bleeding (such as intracranial hemorrhage, severe gastrointestinal bleeding, or severe hemoptysis); * For patients with hemophilia and coagulation system diseases; * History of pulmonary embolism and hepatic vein thrombosis; * Patients with disseminated intravascular coagulation; * Use of anticoagulant medications within 7 days before screening; * Individuals with positive results in screening for antibodies against the human immunodeficiency virus or specific antibodies against Treponema pallidum (the causative agent of syphilis); or those who test positive for hepatitis C antibodies, hepatitis B surface antigen, or have a history of hepatitis B, or individuals with positive hepatitis B core antibodies and HBV-DNA ≥2000 IU/mL in the past 3 months; * Individuals with uncontrolled active infections; * Body weight exceeding 80 kg; * Have undergone hematopoietic stem cell transplantation and have an acute graft-versus-host disease that requires control; * Women of childbearing age who are pregnant or breastfeeding, and male participants who plan to donate sperm within 180 days after medication administration; * The investigator believes that due to any medical condition, the assessment cannot be part of this study, or the participant is unable to complete the follow-up investigation.