Efficacy and Safety of Human Umbilical Cord-Derived Mesenchymal Stem Cells in the Treatment of Immune Thrombocytopenia: A Prospective, Single Centre, Single Arm, Phase I Trial

BackgroundPatients with refractory immune thrombocytopenia (ITP) often suffer severe bleeding events and have poor responses to various treatments. Umbilical cord-derived mesenchymal stem cells (UC-MSCs) have been used to treat multiple autoimmune diseases due to their low immunogenicity and strong immunomodulatory potential. To explore the safety and efficacy of UC-MSCs in treating refractory ITP, we conducted this phase Ⅰ clinical trial.