R-CHOP therapy alone for limited-stage follicular lymphoma.

Irradiation therapy alone is a standard strategy for limited-stage FL, leading to a 10-year progression-free survival (PFS) rate of 30-50%. However, we have been administering R-CHOP therapy alone to patients with limited-stage FL. A total of 35 patients with newly diagnosed FL received R-CHOP therapy with curative intent between 2002 and 2009. The median age of the 35 patients was 61 years; 7 patients had in CS 1 FL, and 28 patients, CS 2 FL. The median number of R-CHOP cycles was 6. On completion of the R-CHOP therapy, 33 patients achieved complete response and 1 showed partial response (PR). The patient showing PR after the completion of R-CHOP was administered additional irradiation. The remaining 1 patient was not evaluated because of discontinuation of hospital visit. In all the 35 patients, the 5-year PFS rate was 70%, and the 5-year overall survival rate was 92%. In the 15 patients with a PFS>5 years, only 1 patient showed disease progression. The outcome of R-CHOP therapy alone in patients with limited-stage FL was at least equivalent to the reported outcome of irradiation therapy alone. R-CHOP therapy could be an alternative to irradiation therapy in limited-stage FL patients.
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