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Prepublished online as a Blood First Edition Paper on May 8, 2003; DOI 10.1182/blood-2003-01-0287. This Article Full Text Full Text (PDF) All Versions of this Article: 2003-01-0287v1 102/5/1606    most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Rights and Permissions Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Press, O. W. Articles by Fisher, R. I. Search for Related Content PubMed PubMed Citation Articles by Press, O. W. Articles by Fisher, R. I. Related Collections Neoplasia Immunotherapy Clinical Trials and Observations Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  Blood, 1 September 2003, Vol. 102, No. 5, pp. 1606-1612 CLINICAL OBSERVATIONS, INTERVENTIONS, AND THERAPEUTIC TRIALS A phase 2 trial of CHOP chemotherapy followed by tositumomab/iodine I 131 tositumomab for previously untreated follicular non-Hodgkin lymphoma: Southwest Oncology Group Protocol S9911 Oliver W. Press, Joseph M. Unger, Rita M. Braziel, David G. Maloney, Thomas P. Miller, Michael LeBlanc, Ellen R. Gaynor, Saul E. Rivkin, and Richard I. Fisher From the Fred Hutchinson Cancer Research Center, Seattle, WA; Southwest Oncology Group Statistical Center, Seattle, WA; Oregon Health Sciences University, Portland, OR; Arizona Cancer Center, University of Arizona, Tucson; Loyola University Stritch School of Medicine, Maywood, IL; Puget Sound Oncology Consortium, Seattle, WA; and James P. Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY. Advanced follicular lymphoma is incurable with conventional chemotherapy and radiotherapy. The Southwest Oncology Group (SWOG) conducted a phase 2 trial (S9911) of a novel regimen consisting of 6 cycles of CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) chemotherapy followed 4 to 8 weeks later by tositumomab/iodine I 131 tositumomab (anti-CD20 antibody) in 90 eligible patients with previously untreated, advanced stage follicular lymphoma. Treatment was well tolerated. Reversible myelosuppression was the main adverse event and was more severe during CHOP chemotherapy than following radioimmunotherapy. The overall response rate to the entire treatment regimen was 90%, including 67% complete remissions (CRs plus unconfirmed CRs [CRu's]) and 23% partial remissions (PRs). Twenty-seven (57%) of the 47 fully evaluable patients who achieved less than a CR with CHOP improved their remission status after tositumomab/iodine I 131 tositumomab. With a median follow-up of 2.3 years, the 2-year progression-free survival (PFS) was estimated to be 81%, with a 2-year overall survival of 97%. This study has established the feasibility, tolerability, and efficacy of this regimen for patients with advanced follicular lymphoma. This novel treatment appears promising compared with the SWOG's historical experience using CHOP alone and is currently being compared with CHOP plus rituximab in a randomized phase 3 trial (S0016). CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: J. W. Sweetenham, B. Goldman, M. L. LeBlanc, J. R. Cook, R. R. Tubbs, O. W. Press, D. G. Maloney, R. I. Fisher, L. M. Rimsza, R. M. Braziel, et al. 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