When Diego was diagnosed with acute lymphoblastic leukemia, his family was devastated and turned to City of Hope for help. Thanks to the innovative use of CAR T cells and stem cell donations from his sister, Diego is now cancer-free, back to playing the trumpet, and excited for what the future holds. “Everybody there totally knows what they’re doing. Everyone really cares about the patients,” said Diego’s father Isaias about the care his son received at City of Hope.