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  • Title: Clinical utility of rituximab in chronic graft-versus-host disease.
    Author: Bates JS, Engemann AM, Hammond JM.
    Journal: Ann Pharmacother; 2009 Feb; 43(2):316-21. PubMed ID: 19193571.
    Abstract:
    OBJECTIVE: To evaluate the use of rituximab in the clinical management of steroid-refractory chronic graft-versus-host disease (GVHD). DATA SOURCES: Literature was accessed through MEDLINE and International Pharmaceutical Abstracts (1990-September 2008), both indexed and nonindexed citations, using the terms rituximab, graft-versus-host disease, monoclonal antibodies, and CD20. In addition, reference citations from the publications identified were reviewed. STUDY SELECTION AND DATA EXTRACTION: All articles discussing rituximab as a therapeutic option in the treatment of GVHD that were published in English and enrolled human study participants were evaluated. DATA SYNTHESIS: Rituximab is a genetically engineered chimeric murine monoclonal antibody that binds to the CD20 differentiation antigen found on B-lymphocytes. GVHD is the leading cause of procedural-related morbidity and mortality following allogeneic hematopoietic stem cell transplantation (HSCT). Chronic GVHD (cGVHD) occurs in up to 70% of individuals undergoing HSCT, and approximately 40% of those patients are refractory to conventional T-lymphocyte-directed therapies. Limited treatments are available for individuals with steroid-refractory cGVHD. Rituximab therapy in individuals with extensive cGVHD has demonstrated clinical efficacy with manageable toxicities in retrospective and prospective studies. CONCLUSIONS: Available data suggest that rituximab is a treatment option for patients with extensive steroid-refractory cGVHD. Rituximab may be particularly effective for individuals with steroid-refractory cGVHD manifesting as thrombocytopenia or with sclerodermatous, cutaneous, and rheumatologic involvement.
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