title: Rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) for treatment of early-stage gastric diffuse large B-cell lymphoma.
abstract: BACKGROUND
  Diffuse large B-cell lymphoma (DLBCL) of the stomach is a relatively common disease. Recently, chemotherapy consisting of doxorubicin, cyclophosphamide, vincristine and prednisone (CHOP) has been reported as effective treatment for early-stage gastric DLBCL. Given the fact that the application of the CD20 antibody rituximab (R) in addition to CHOP has improved outcomes in nodal DLBCL, we have analysed our experience with application of R-CHOP in patients with early-stage gastric DLBCL.
  
  
  METHODS
  Patients with histologically verified early-stage gastric DLBCL undergoing treatment with R-CHOP for initial management were analysed.
  
  
  RESULTS
  Fifteen patients received a total of 79 cycles, with a median of six cycles per patient. All patients responded to therapy, 13 had a complete remission (CR) (87%) and two (13%) a partial remission. All patients in CR, except one who died unrelated to lymphoma, have remained so with a median follow-up of 15 months (range 4-42) after treatment. Subjective tolerance was moderate, and toxicities were mainly haematological, including leukocytopenia WHO grade 3 and 4 in 10 and five patients each. The addition of rituximab to the standard CHOP regimen did not appear to significantly increase toxicity.
  
  
  CONCLUSIONS
  Our data indicate that R-CHOP is an effective regimen for management of early-stage gastric DLBCL. However, given the excellent results with CHOP alone in such patients, the value of adding rituximab to standard CHOP remains to be determined in a randomised trial.
authors.affiliation: Department of Internal Medicine I, Division of Oncology, Center of Excellence in Clinical and Experimental Oncology (CLEXO), University of Vienna, Vienna, Austria.
authors.forename: S
authors.initials: S
authors.lastname: Wöhrer
authors.forename: A
authors.initials: A
authors.lastname: Püspök
authors.forename: J
authors.initials: J
authors.lastname: Drach
authors.forename: M
authors.initials: M
authors.lastname: Hejna
authors.forename: A
authors.initials: A
authors.lastname: Chott
authors.forename: M
authors.initials: M
authors.lastname: Raderer
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000911:Antibodies, Monoclonal / Q000008:administration & dosage / Q000627:therapeutic use; D058846:Antibodies, Monoclonal, Murine-Derived; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D015331:Cohort Studies; D003520:Cyclophosphamide / Q000008:administration & dosage; D004317:Doxorubicin / Q000008:administration & dosage; D005260:Female; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000188:drug therapy* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D011241:Prednisone / Q000008:administration & dosage; D000069283:Rituximab; D013274:Stomach Neoplasms / Q000188:drug therapy*; D015996:Survival Rate; D016896:Treatment Outcome; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D000911:Antibodies, Monoclonal; D058846:Antibodies, Monoclonal, Murine-Derived; D000069283:Rituximab; D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone