{"groups":[{"description":"Participants will receive one of two standard myeloablative conditioning regimens for their stem cell transplant, and will receive an aGvHD prophylaxis regimen including cyclosporine, methotrexate, and abatacept.\n\nAbatacept: Participants will receive one of two standard myeloablative conditioning regimens for their stem cell transplant, and will receive an aGvHD prophylaxis regimen including cyclosporine, methotrexate, and abatacept.","id":"FG000","title":"Abatacept"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"10"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"10"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}],"preAssignmentDetails":"One patient signed consent but was determined to be an assignment failure prior to starting study activities."}