Study Status: Completed
Recruit Status: Unknown status
Study Type: Interventional
Official Title: Safety and Tolerability Trial of Abatacept-based Immunosuppression for Prevention of Acute GvHD During Unrelated Donor Hematopoietic Stem Cell Transplant
Brief Summary: The primary objective of the study is to determine the safety and tolerability when adding abatacept to acute Graft versus Host Disease in transplants for malignant diseases using unrelated donor bone marrow or peripheral blood stem cell grafts.