[Efficacy of CHOP+/-Rituximab-like therapy plus radiation therapy for patients with diffuse large B-cell lymphoma stage I].

Clinically, R-CHOP-like therapy plus radiation therapy is commonly performed for patients with limited stage diffuse large B-cell lymphoma. However, the efficacy and the safety of the management have not been evaluated properly. In particular, we have few definitive reports about patients with stage I DLBCL. This time we evaluated the effect of CHOP+/-R-like therapy plus radiation therapy, by analyzing 28 patients with stage I DLBCL, retrospectively. 15 patients were treated with the RCHOP-like therapy, and 13 received CHOP-like therapy combined with radiation therapy. A complete response was observed in all of the patients. With a median follow-up time of 14 months, 1-year progression-free survival (PFS) was 100%, and the 1-year overall survival (OS) was 100% for the patients receiving the R-CHOP-like therapy. With a median follow-up time of 68 months, 5-year PFS was 84. 6%, and 5-year OS was 100% for patients receiving the CHOP-like therapy. Since the followup time was not enough and the patient numbers were too few, the benefit of the addition of Rituximab to the CHOP therapy could not be clarified. We need to assess the safety and the efficacy of the combined modality therapy for patients with limited-stage DLBCL by a larger prospective study.