Phase I Clinical Trial of CART Cell Therapy for Refractory/Relapsed Acute Lymphoblastic Leukemia in Children, Adolescents and Young Adults

A total of two doses of autologous CD19/CD22 CAR T cells (first dose of up to 0.75x106/kg fresh cells), and a second infusion of unfrozen cells (same dose) if there has been no ≥ grade 1 cytokine-release syndrome (CRS) in the next 72 h; intravenously.

A total of up to 3x106/kg allogeneic CART-NKG2D cells divided in three doses of up to 1x106/kg will be infused; intravenously. First infusion of fresh cells, and the 2nd and 3rd infusion of unfrozen cells (same dose) if there has been no ≥ grade 1 CRS (every 48 hours).