Chiara Magnani, PhD, University of Milano-Bicocca, Milan, Italy & Fondazione Tettamanti, Monza Italy, discusses the ongoing phase I/II trial on donor-derived CD19 CAR cytokine-induced killer (CIK) cells engineered with a sleeping beauty (SB) transposon for relapsed B-cell acute lymphoblastic leukemia (B-ALL). Dr Magnani outlines the manufacturing process and reveals that SB-engineered CARCIK-CD19 cells can expand and persist in pediatric and adult B-ALL patients who have relapsed after hematopoietic stem cell transplantation (HSCT). This interview took place at the 2nd European CAR T-Cell Meeting in Sitges, Spain.