Phase I Trial for Patients w/ Advanced Hematologic Malignancies Undergoing Allogeneic HCT

On Day 0, participants will receive an infusion of Orca-T HSPCs and Orca-T Tregs. On Day +2 or +3 (between approximately 48 to 72 hours of Day 0), patients will receive an infusion of the Orca-T Tcons. There is no dose escalation or de-escalation planned for the Orca-T investigational product.