Follicular lymphoma in the United States: first report of the
national LymphoCare study. JW Friedberg, MD Taylor, JR Cerhan, CR Flowers, H Dillon, CM
Farber, ES Rogers, JD Hainsworth, EK Wong, JM Vose, AD
Zelenetz, BK Link J Clin Oncol 2009 3;27(8):1202-8
| Posted on |
Apr 22, 2009 |
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Follicular lymphoma (FL) is the second most common subtype of non-
Hodgkins lymphoma (NHL), with an estimated 14000 cases diagnosed
each year in the United States. Considered an indolent NHL, 10-year
overall survival ranges from 36-71% depending on associated risk
factors. The Follicular Lymphoma International Prognostic Index (FLIPI)
was developed in 2004 as a prognostic tool to standardize treatment
approaches and interpretation of clinical trials, although its application
has been limited due to variations in practice patterns. Friedberg et al
established the National LymphoCare study (NLCS) and prospectively
collected data on 2728 patients with newly-diagnosed FL seen and
treated at 265 different treatment centers in the United States from
2004-2007. Median age was 61 years; 43% had grade 1 histology, and
66% had Stage III-IV disease. Initial management was: observation,
17.7%; radiotherapy alone, 5.5%; rituximab alone, 13.9%;
chemotherapy plus rituximab, 51.9%. Only 6.1% were treated on clinical
trials. Among patients with Stage I disease, only 23.4% received
radiotherapy, despite recommendations from the National
Comprehensive Cancer Network and the European Society for Medical
Oncology recommending primary radiotherapy for limited stage FL.
Management approaches differed geographically and also for academic
vs community treatment centers. FLIPI risk groups were distributed
equally, although FLIPI could not be calculated in 18% of patients due to
missing information. The lack of uniformity in management, the absence
of adequate prognostic information (for FLIPI determination) in nearly
one-fifth of cases, and the miniscule proportion of FL patients on clinical
trials, illustrate the need for a consensus regarding management of FL. -
Alfred Ian Lee, M.D, Ph.D., and Ann S. LaCasce, M.D.
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