Some case reports and a Japanese series suggest benefit from the use of rituximab in patients with intravascular large B-cell lymphoma (IVL). Rituximab efficacy was evaluated in Western patients with IVL, comparing outcome of 10 patients treated with rituximab + chemotherapy (R-CT) and of 20 patients treated with chemotherapy alone (CT). There were no significant differences in patients' characteristics between the two subgroups. The addition of rituximab was associated with improved complete remission rate (90% vs. 50%; P = 0.04), event-free survival (3-year: 89% vs. 35%; P = 0.003) and overall survival (3-year: 89% vs. 38%; P = 0.01). In conclusion, rituximab may substantially change the dismal prognosis of IVL.
- Anti-CD20 therapy
- Extranodal lymphoma
- Intravascular large B-cell lymphoma
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