Prior rituximab administration is associated with reduced rate of acute GVHD after in vivo T-cell depleted transplantation in lymphoma patients
2011
Rituximab is one of the most commonly used drugs in the treatment of B-cell non-Hodgkin lymphoma. Because of its ability to target CD20 + lymphocytes, its use before allogeneic stem cell transplantation seemed to reduce risk of graft-vs.-host disease (GVHD) occurrence. We retrospectively analyzed the outcomes of adult patients diagnosed with CD20 + lymphoproliferative disease undergoing allogeneic stem cell transplantation and receiving, or not receiving, rituximab up to 3 months before transplantation. Analysis on a cohort of 57 patients showed a protective role of rituximab on the occurrence of acute GVHD for those receiving anti-thymocyte globulin during conditioning (n = 39). Grade 2 to 4 and 3 to 4 acute GVHD occurred in 10% vs. 48% ( p = 0.03) and 0% vs. 24% ( p = 0.08) in the rituximab and no-rituximab groups, respectively. No impact on chronic GVHD was observed. These results confirm a protective role of rituximab on the occurrence of GVHD and enhance further investigation on future studies aimed at reducing GVHD incidence.
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