Safety and efficacy of low dose versus high dose corticosteroid for graft versus host disease (GVHD): A systematic review.

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e24047 Background: Graft-versus-host disease (GVHD) is an immune-mediated complication of allogeneic hematopoietic stem cell transplantations. Current standard dose of corticosteroids used by the most hospitals for GVHD patients is 1-2 mg/kg/day. The prednisone dose used in the treatment of a GVHD has been a matter of debate. In this systematic review, we aimed to compare low dose prednisone to high/standard dose prednisone in terms of multiple prognostic outcomes of the patients undergoing allogenic hematopoietic stem-cell transplantations. Methods: We searched the databases PubMed, Cochrane library, and clinicaltrials.gov for all studies investigating the efficacy and safety of low dose and high dose steroid for GVHD. We set the search strategy incorporating the search terms, Graft-versus-host disease," "low dose cortico-steroid," and "high dose corticosteroid", and operated using the Boolean operators ‘AND’, and ‘OR’. Thus, retrieved articles were then exported on an Excel sheet, and duplicates were removed. After selecting the study based on inclusion criteria, data on study characteristics and biomarker description was extracted on a pre-determined data extraction table on the Microsoft Excel. Results: The search revealed 547 studies and 3 studies that met the eligibility criteria of this review have been included.During relapse, chronic GVHD, mortality, and malignancy outcomes were generally similar between doses, low-dose prednisone showed benefits for leukemia-free, relapse-free, and overall survival. Overall, the randomized trial by Chang et al. found lower risks of HZV and pulmonary infections with low-dose prednisone compared to standard-dose. (Table 1) Other infections were similar between groups. Conclusions: Low-dose prednisone showed similar efficacy to standard-dose for most GVHD outcomes (relapse risk, mortality), with potential benefits on survival, reduced HZV/pulmonary infections, and reduced adverse effect of higher cumulative dose of corticosteroids. [Table: see text]