RecruitingPhase 1Biological interventionPilot Study of Anti-CD19 Chimeric Antigen Receptor T Cells (CAR-T Cells) for the Treatment of Relapsed/Refractory CD19+ MalignanciesThis is an open label, non-randomized, phase 1 study of anti-CD19 CAR-T cells against relapsed CD19 positive NHL, CLL and ALL based in a lymphodepletion regimen (fludarabine and cyclophosphamide) and using a CellReGen-based process for manufacturing CAR-T cells. This study will utilize a staggered enrollment design with a safety observation period.