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ISRN Oncology
Volume 2013 (2013), Article ID 863909, 5 pages
Clinical Study

Infusion Rate Escalation Study of Rituximab in Patients with CD20+ B-Cell Lymphomas: A Single Institution Analysis in Japan

1Department of Hematology, Cancer Institute Hospital, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
2Division of Pathology, The Cancer Institute, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
3Pathology Project for Molecular Targets, The Cancer Institute, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
4Division of Hematology, Department of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan

Received 11 February 2013; Accepted 28 February 2013

Academic Editors: W. Kildal and Y.-Y. Liu

Copyright © 2013 Masahiro Yokoyama et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. To determine the maximum tolerable infusion rate of rituximab, and investigate the safety and feasibility of rapid infusion of rituximab for patients with CD20 positive B-cell lymphomas (CD20+NHL). Patients and Methods. 18 patients with CD20+NHL were registered. This study had six cohorts of administration rate of rituximab. The median age was 56 years (range, 38–79), and five of 18 patients were male. Two patients (11%) with diffuse large B-cell lymphoma were receiving R-CHOP therapy, two (11%) with indolent lymphoma were receiving R-CVP therapy, and 14 (78%) with indolent lymphoma were receiving rituximab as maintenance therapy. Results. A total of 88 cycles of rituximab was administered. Rapid infusion of rituximab was well tolerated, with only one grade 3 leukocytepenia and one grade 4 neutropenia. Four patients (22%) developed grade 1 infusion-related toxicities at the first administration of rituximab. No patient with severe drug-related events was observed. Conclusions. We determined that the maximum tolerable infusion rate of rituximab is 300 mL/h (under 700 mg/h), and confirmed that administration of over 60 minutes is safe and feasible. We recommend rapid administration of rituximab for practice setting in patients with CD20+NHL being treated with rituximab or rituximab-containing chemotherapy. (Clinical trial no. JFCR2009-1027).