Co-Transplant of an Unmodified Haplo-Identical Graft With Cord Blood

This study is testing a stem cell transplant approach that combines a partially matched (haploidentical) donor graft with donated umbilical cord blood to treat high-risk blood cancers — aiming to reduce the risk of transplant rejection and complications. **You may be eligible if...** - You have been diagnosed with a high-risk blood cancer such as AML (acute myeloid leukemia), ALL (acute lymphoblastic leukemia), MDS, CML, NHL, or Hodgkin lymphoma - Your cancer is in remission or at a specific disease stage required by the study - You do not have a fully matched sibling donor available - Your overall health is sufficient to undergo a stem cell transplant **You may NOT be eligible if...** - Your cancer is active and not in remission - You have serious organ damage or infections - You have a fully matched sibling donor available (in most cases) Talk to your doctor to see if this trial is right for you.