title: Bevacizumab, capecitabine, and oxaliplatin as neoadjuvant therapy for patients with potentially curable metastatic colorectal cancer.
abstract: OBJECTIVE
  Patients with colorectal cancer (CRC) and liver metastases have a poor prognosis, but can benefit from perioperative chemotherapy and disease resection. Bevacizumab improves outcomes in patients with metastatic CRC; however, its impact on surgical complications and hepatic regeneration after liver resection remains to be determined.
  
  
  METHODS
  Fifty-six patients with metastatic CRC with liver metastases potentially curable by resection were eligible for this single-center, nonrandomized phase II trial. Eligibility criteria defined patients at high risk of early recurrence. Patients received biweekly bevacizumab plus capecitabine and oxaliplatin for six cycles. The sixth cycle of therapy did not include bevacizumab, resulting in 5 weeks between the last administration of bevacizumab and surgery.
  
  
  RESULTS
  Objective response to neoadjuvant chemotherapy was achieved in 41 patients (73%). Fifty-two patients underwent liver resection including 11 with synchronous primary tumor resection. No increased intraoperative bleeding events or wound-healing complications were observed and only three patients (6%) required perioperative blood transfusions. Further surgery was necessary in a single patient. Postoperative liver function and regeneration were normal in all but one patient. No postoperative mortality occurred and morbidity was encountered in 11 patients (20%). The mean length of postoperative hospitalization was 9 days (+/- 4.0).
  
  
  CONCLUSIONS
  These data suggest that bevacizumab can be safely administered until 5 weeks before liver resection in patients with metastatic CRC without increasing the rate of surgical or wound healing complications or severity of bleeding. To our knowledge, they are also the first to show that neoadjuvant bevacizumab does not affect liver regeneration after resection.
authors.affiliation: Department of of Oncology, Rudolfstiftung Hospital, Vienna, Austria.
authors.forename: Brigit
authors.initials: B
authors.lastname: Gruenberger
authors.forename: Dietmar
authors.initials: D
authors.lastname: Tamandl
authors.forename: Johannes
authors.initials: J
authors.lastname: Schueller
authors.forename: Werner
authors.initials: W
authors.lastname: Scheithauer
authors.forename: Christoph
authors.initials: C
authors.lastname: Zielinski
authors.forename: Friedrich
authors.initials: F
authors.lastname: Herbst
authors.forename: Thomas
authors.initials: T
authors.lastname: Gruenberger
mesh_terms: D000911:Antibodies, Monoclonal / Q000008:administration & dosage* / Q000009:adverse effects; D061067:Antibodies, Monoclonal, Humanized; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D000068258:Bevacizumab; D000069287:Capecitabine; D017024:Chemotherapy, Adjuvant; D015179:Colorectal Neoplasms / Q000401:mortality / Q000473:pathology*; D003841:Deoxycytidine / Q000008:administration & dosage / Q000031:analogs & derivatives*; D003967:Diarrhea / Q000139:chemically induced; D004334:Drug Administration Schedule; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage / Q000031:analogs & derivatives*; D006402:Hematologic Diseases / Q000139:chemically induced; D006801:Humans; D007262:Infusions, Intravenous; D008113:Liver Neoplasms / Q000188:drug therapy* / Q000556:secondary* / Q000601:surgery; D008115:Liver Regeneration / Q000187:drug effects; D008297:Male; D008875:Middle Aged; D009944:Organoplatinum Compounds / Q000008:administration & dosage*; D000077150:Oxaliplatin; D010523:Peripheral Nervous System Diseases / Q000139:chemically induced; D015996:Survival Rate
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D009944:Organoplatinum Compounds; D000077150:Oxaliplatin; D003841:Deoxycytidine; D000068258:Bevacizumab; D000069287:Capecitabine; D005472:Fluorouracil