R-CVP versus R-CHOP versus R-FM as first-line therapy for advanced-stage follicular lymphoma: Final results of FOLL05 trial from the Fondazione Italiana Linfomi (FIL).

8006 Background: The optimal chemotherapy regimen for patients with advanced, active follicular lymphoma (FL) has not been established yet. We conducted a randomized trial comparing R-CVP with R-CHOP and R-FM. Methods: Previously untreated patients with advanced FL were randomly assigned to receive 8 doses of rituximab associated to 8 cycles of CVP, or 6 cycles of CHOP or FM (fludarabine 25 mg/m2 day 1-3, mitoxantrone 10 mg/m2 day 1). No maintenance therapy was allowed. The principal study end point was Time to Treatment Failure (TTF). Events in TTF were failure of induction therapy, progressive or relapse disease and death from any causes. In order to show a hazard ratio between each experimental arms and standard arm of 0.53 we planned to accrue 534 patients (178 per arm) with 4 years of accrual and 1 year of follow-up. Statistical tests were two-sided with an alpha error of 0.05, adjusted by Bonferroni for multiple arm comparison, and power of 90%. Results: Between March 2006 and September 2010, 534 pa...