Phase 1 Study of Redirected Autologous T Cells Engineered to Contain an Anti-CD19 and Anti-CD20 scFv Coupled to CD3ζ and 4-1BB Signaling Domains in Patients With Relapsed/ Refractory CD19 or CD20 B-cell Acute Lymphoblastic Leukemia is a PHASE1 clinical asset sponsored by Medical College of Wisconsin in Acute Lymphoblastic Leukemia, in Relapse, Acute Lymphoblastic Leukemia With Failed Remission, Acute Lymphoblastic Leukemia Recurrent, Acute Lymphoblastic Leukemia Not Having Achieved Remission, Acute Lymphoblastic Leukemia, Pediatric, Acute Lymphoblastic Leukemia. SEO and diligence focus: CAR-20/19-T cells (5 x 10^5 CAR-20/19-T cells/kg), CAR-20/19-T cells (1 x10^6 CAR-20/19-T cells/kg), CAR-20/19-T cells (2.5 x10^6 CAR-20/19-T cells/kg), CAR-20/19-T cells, endpoint relevance, enrollment feasibility, competitive positioning, readout timing and IP durability.