Journal
JOURNAL OF CLINICAL ONCOLOGY
Volume 31, Issue 3, Pages 314-320Publisher
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.2012.42.4101
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Funding
- GlaxoSmithKline
- Abbott
- Cephalon
- Eli Lilly
- Emergent BioSolutions
- Gilead Sciences
- Piramal
- SBio
- Seattle Genetics
- Spectrum Pharmaceuticals
- Genentech
- National Cancer Institute [CA32102, CA38926, CA11083, CA27057, CA13612, CA35431, CA20319, CA35090, CA35261, CA46282, CA45560, CA58861, CA35281, CA67575, CA35176, CA45377, CA35128, CA76429, CA22433, CA63844, CA12644, CA04919]
- Natl Canc Inst [CA45450, CA35119, CA35178, CA58416, CA67663, CA46441, CA35192, CA37981, CA76447, CA52654, CA16385, CA073590, CA45808, CA58882, CA14028, CA58723, CA74811, CA31946, R01 CA076287]
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Purpose Advanced follicular lymphomas (FL) are considered incurable with conventional chemotherapy and there is no consensus on the best treatment approach. Southwest Oncology Group (SWOG) and Cancer and Leukemia Group B compared the safety and efficacy of two immunochemotherapy regimens for FL in a phase III randomized intergroup protocol (SWOG S0016) that enrolled 554 patients with previously untreated, advanced-stage FL between March 1, 2001, and September 15, 2008. Patients and Methods Patients were eligible for the study if they had advanced-stage (bulky stage II, III, or IV) evaluable FL of any grade (1, 2, or 3) and had not received previous therapy. In one arm of the study, patients received six cycles of cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) chemotherapy at 3-week intervals with six doses of rituximab (CHOP-R). In another arm of the study, patients received six cycles of CHOP followed by consolidation with tositumomab/iodine I-131 tositumomab radioimmunotherapy (RIT). Results After a median follow-up period of 4.9 years, the 2-year estimate of progression-free survival (PFS) was 76% on the CHOP-R arm and 80% on the CHOP-RIT arm (P = .11). The 2-year estimate of overall survival (OS) was 97% on the CHOP-R arm and 93% on the CHOP-RIT arm (P = .08). Conclusion There was no evidence of a significant improvement in PFS comparing CHOP-RIT with CHOP-R. However, PFS and OS were outstanding on both arms of the study. Future studies are needed to determine the potential benefits of combining CHOP-R induction chemotherapy with RIT consolidation and/or extended rituximab maintenance therapy. J Clin Oncol 31:314-320. (C) 2012 by American Society of Clinical Oncology
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