The purpose of this study is to determine if Tocilizumab is a safe and effective treatment for steroid-refractory acute graft versus host disease.

Phase II Study of Tocilizumab for Patients With Glucocorticoid-refractory Acute GVHD After Allogeneic Hematopoetic Stem Cell Transplant (HSCT)

Tocilizumab (an Anti-human IL-6 Receptor Monoclonal Antibody) as a First Line Therapy for Patients With Glucocorticoid-refractory Acute Graft vs. Host Disease (aGVHD) After Allogeneic Hematopoetic Stem Cell Transplant (HSCT), a Phase II Study.