title: Treatment results in localized primary gastric lymphoma: data of patients registered within the German multicenter study (GIT NHL 02/96).
abstract: OBJECTIVE
  In the prospective study 02/96 on primary GI lymphoma, we have collected data on histology, clinical features, and treatment results. In particular, in stages I and II localized primary gastric lymphoma (PGL), our objectives were to reduce treatment intensity and to confirm our hypothesis from study 01/92, which maintained that an organ-preserving approach is not inferior to primary surgery.
  
  
  METHODS
  Patients receiving radiotherapy and/or chemotherapy were stratified for histologic grade, stage, and whether surgery had been carried out or not (as decided by each participating center). Patients with aggressive PGL received six cycles of CHOP-14 (cyclophosphamide, doxorubicin, vincristine, and prednisone) followed by involved-field radiotherapy (40 Gy). Patients with indolent PGL (including patients experiencing treatment failure with antibiotic therapy for Helicobacter pylori) were treated with extended-field radiotherapy. The volume depended on stage. The irradiation dose was 30 Gy, followed by a boost of 10 Gy (the latter omitted after complete resection) to the tumor region.
  
  
  RESULTS
  Seven hundred forty-seven patients were accrued. Of these patients, 393 with localized PGL were treated with radiotherapy and/or chemotherapy only or additional surgery between December 1996 and December 2003. The survival rate at 42 months for patients treated with surgery was 86% compared with 91.0% for patients without surgery.
  
  
  CONCLUSIONS
  In this nonrandomized study (02/96), we reproduced the previous results of study 01/92 showing no disadvantage for an organ-preserving treatment. Therefore, primary stomach resection should be questioned.
authors.affiliation: Department of Medicine -Hematology, Institute for Informatics and Biomathematics, Westfälische-Wilhelms-Universität, Münster, Germany. prfkoch@aol.com
authors.forename: Peter
authors.initials: P
authors.lastname: Koch
authors.forename: Andreas
authors.initials: A
authors.lastname: Probst
authors.forename: Wolfgang E
authors.initials: WE
authors.lastname: Berdel
authors.forename: Normann A
authors.initials: NA
authors.lastname: Willich
authors.forename: Gabriele
authors.initials: G
authors.lastname: Reinartz
authors.forename: Jens
authors.initials: J
authors.lastname: Brockmann
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Liersch
authors.forename: Francisco
authors.initials: F
authors.lastname: del Valle
authors.forename: Hermann
authors.initials: H
authors.lastname: Clasen
authors.forename: Carsten
authors.initials: C
authors.lastname: Hirt
authors.forename: Regine
authors.initials: R
authors.lastname: Breitsprecher
authors.forename: Rudolf
authors.initials: R
authors.lastname: Schmits
authors.forename: Mathias
authors.initials: M
authors.lastname: Freund
authors.forename: Rainer
authors.initials: R
authors.lastname: Fietkau
authors.forename: Peter
authors.initials: P
authors.lastname: Ketterer
authors.forename: Eva-Maria
authors.initials: EM
authors.lastname: Freitag
authors.forename: Margit
authors.initials: M
authors.lastname: Hinkelbein
authors.forename: Achim
authors.initials: A
authors.lastname: Heinecke
authors.forename: Reza
authors.initials: R
authors.lastname: Parwaresch
authors.forename: Markus
authors.initials: M
authors.lastname: Tiemann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D003520:Cyclophosphamide / Q000008:administration & dosage; D019583:Dose Fractionation, Radiation; D004317:Doxorubicin / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000188:drug therapy* / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011241:Prednisone / Q000008:administration & dosage; D011446:Prospective Studies; D013274:Stomach Neoplasms / Q000188:drug therapy* / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery; D016019:Survival Analysis; D016896:Treatment Outcome; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone