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Successful use of rituximab in Evans syndrome and refractory immune thrombocytopenic purpura
Muhammad Kashif1, Adnan Qureshi, Salman Naseem Adil
1Section of Hematology, Department of Pathology and Microbiology, The Aga Khan University, Karachi, Pakistan.
Immune cytopenias are mediated by auto-antibodies produced by B-lymphocytes. Conventional treatment of immune-mediated haematological disorders includes immunosuppression with steroids and other immune modulating therapies and in some refractory cases, splenectomy. Response rates to conventional and second-line agents are variable and a proportion of patients require lifelong immunosuppression to maintain the disease in remission. Rituximab, an anti- CD 20 monoclonal antibody has gained widespread acceptance in the management of B-cell malignancies. Additionally, it has been used to treat the disorders associated with autoantibody production. We report herein the successful use of Rituximab in the treatment of two patients with autoimmune cytopenias one had Evan's syndrome and other had refractory immune thrombocytopenic purpura. Both of these patients are still in remission at 16 and 25 months following treatment.
Immune cytopenias are mediated by auto-antibodies produced by B-lymphocytes. Conventional treatment of immune-mediated haematological disorders includes immunosuppression with steroids and other immune modulating therapies and in some refractory cases, splenectomy. Response rates to conventional and second-line agents are variable and a proportion of patients require lifelong immunosuppression to maintain the disease in remission. Rituximab, an anti- CD 20 monoclonal antibody has gained widespread acceptance in the management of B-cell malignancies. Additionally, it has been used to treat the disorders associated with autoantibody production. We report herein the successful use of Rituximab in the treatment of two patients with autoimmune cytopenias one had Evan's syndrome and other had refractory immune thrombocytopenic purpura. Both of these patients are still in remission at 16 and 25 months following treatment.