Don’t use greater than 2 mg/kg/day of methylprednisolone (or equivalent) for the initial treatment of graft-versus-host disease.

Published studies have shown no advantage to using methylprednisolone-equivalent doses higher than 2 mg/kg/day in acute graft-versus-host disease. In addition, using higher doses increases risks of corticosteroid related toxicity. Furthermore, at least in patients with grade I-II acute graft-versus-host disease, initial therapy with lower-dose corticosteroids at 1 mg/kg/day may be equivalent.

Sources:

Martin PJ, et al. First- and second-line systemic treatment of acute graft-versus-host disease: recommendations of the American Society of Blood and Marrow Transplantation. Biol Blood Marrow Transplant. 2012 Aug;18(8):1150-63. PMID: 22510384.