Fludarabine plus mitoxantrone with and without rituximab versus CHOP with and without rituximab as front-line treatment for patients with follicular lymphoma.
OBJECTIVE
Promising new therapeutic options for follicular lymphoma (FL) include fludarabine plus mitoxantrone (FM) and the mouse/human anti-CD20 antibody, rituximab. We performed a randomized comparative trial of FM with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) front-line chemotherapy with and without sequential rituximab.


METHODS
All previously untreated CD20(+) FL patients presenting in 15 Italian cooperative institutions from October 1999 were randomly allocated to FM or CHOP. Following clinical or molecular restaging, patients in complete remission (CR) with bcl-2/IgH negativity (CR(-)) received no further treatment; those in CR with bcl-2/IgH positivity (CR(+)) received rituximab, as did those in partial remission (PR) with bcl-2/IgH negativity (PR(-)) or positivity (PR(+)); nonresponders (NR subgroup) were off study.


RESULTS
After chemotherapy, the FM arm achieved higher rates of CR (68% [49 of 72 patients] v 42% [29 of 68 patients]; P =.003) and CR(-) (39% [28 of 72 patients] v 13 of 68 patients [19%]; P =.001). Rituximab elicited CR(-) in 55 of 95 treated patients (58%). The final CR(-) rate was higher in the FM arm (71% [51 of 72 patients] v 51% [35 of 68 patients]; P =.01). However, with a median follow-up of 19 months (range, 9 to 37 months), no statistically significant difference was found among the various study arms in terms of both progression-free (PFS) and overall survival (OS).


CONCLUSIONS
These results indicate that FM is superior to CHOP for front-line treatment of FL and that rituximab is an effective sequential treatment option. However, they also confirm that this superiority is unlikely to translate into either better PFS or OS.
Zinzani
Pier Luigi
PL
Institute of Hematology and Medical Oncology L. e A. Seràgnoli, University of Bologna, Italy. plzinzo@med.unibo.it
Pulsoni
Alessandro
A
Perrotti
Alessio
A
Soverini
Simona
S
Zaja
Francesco
F
De Renzo
Amalia
A
Storti
Sergio
S
Lauta
Vito Michele
VM
Guardigni
Luciano
L
Gentilini
Patrizia
P
Tucci
Alessandra
A
Molinari
Anna Lia
AL
Gobbi
Marco
M
Falini
Brunangelo
B
Fattori
Pier Paolo
PP
Ciccone
Fabrizio
F
Alinari
Lapo
L
Martelli
Maurizio
M
Pileri
Stefano
S
Tura
Sante
S
Baccarani
Michele
M
D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal / Q000494:pharmacology / Q000627:therapeutic use*; D058846:Antibodies, Monoclonal, Murine-Derived; D000970:Antineoplastic Agents / Q000494:pharmacology / Q000627:therapeutic use*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use*; D003520:Cyclophosphamide / Q000008:administration & dosage; D018572:Disease-Free Survival; D004317:Doxorubicin / Q000008:administration & dosage; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007262:Infusions, Intravenous; D008224:Lymphoma, Follicular / Q000188:drug therapy* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011241:Prednisone / Q000008:administration & dosage; D000069283:Rituximab; D016896:Treatment Outcome; D014750:Vincristine / Q000008:administration & dosage
D000911:Antibodies, Monoclonal; D058846:Antibodies, Monoclonal, Murine-Derived; D000970:Antineoplastic Agents; D000069283:Rituximab; D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone