title: Capecitabine plus oxaliplatin vs fluorouracil plus oxaliplatin as first line treatment for metastatic colorectal caner - meta-analysis of six randomized trials.
abstract: OBJECTIVE
  This meta-analysis was performed to evaluate the efficacy and safety of capecitabine plus oxaliplatin vs fluorouracil (FU) plus oxaliplatin as first line treatment for metastatic or advanced colorectal cancer.
  
  
  METHODS
  A total of 2196 patients from six randomized controlled trials were available for analysis, which included 1105 patients in capecitabine plus oxaliplatin group and 1091 patients in FU plus oxaliplatin group. The efficacy data included overall survival (OS), progression-free survival (PFS), time to treatment failure (TTF), overall response rate (ORR), and the safety data contained specific grade 3 and 4 toxicity such as anaemia, thrombocytopenia, neutropenia, diarrhoea, nausea, asthenia, vomiting, abdominal pain, hand foot syndrome, neuropathy and stomatitis were evaluated.
  
  
  RESULTS
  Pooled analysis of OS (hazards ratio HR = 1.04, 95%CI: 0.95-1.14), PFS (1.08, 0.98-1.18), ORR (odds ratio OR = 0.87, 0.73-1.03) in the capecitabine plus oxaliplatin group shows no statistical significance when compared with those in the FU plus oxaliplatin group. The statistically significant differences in pooled estimates suggest a higher incidence of grade 3/4 thrombocytopenia (OR = 1.87, 1.24-2.81), grade 3/4 hand-foot syndrome (3.90, 2.13-7.12) in the capecitabine plus oxaliplatin group and grade 3/4 neutropenia (0.20, 0.07-0.53) in the FU plus oxaliplatin group. No statistically significant difference was noted in the incidence of grade 3/4 anaemia, asthenia, diarrhoea, nausea, vomiting, abdominal pain, neuropathy and stomatitis.
  
  
  CONCLUSIONS
  The effect of capecitabine plus oxaliplatin regimen is similar to FU plus oxaliplatin regimen as first line treatment for metastatic colorectal cancer, but it offers advantages of simplicity and convenience to administer.
authors.affiliation: Department of Colorectal and Anal Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Cao
authors.forename: C
authors.initials: C
authors.lastname: Liao
authors.forename: A
authors.initials: A
authors.lastname: Tan
authors.forename: L
authors.initials: L
authors.lastname: Liu
authors.forename: Z
authors.initials: Z
authors.lastname: Mo
authors.forename: F
authors.initials: F
authors.lastname: Gao
mesh_terms: D000284:Administration, Oral; D000971:Antineoplastic Combined Chemotherapy Protocols; D000069287:Capecitabine; D015179:Colorectal Neoplasms / Q000188:drug therapy*; D003841:Deoxycytidine / Q000008:administration & dosage / Q000031:analogs & derivatives; D018572:Disease-Free Survival; D004334:Drug Administration Schedule; D005472:Fluorouracil / Q000008:administration & dosage / Q000031:analogs & derivatives / Q000627:therapeutic use; D006801:Humans; D009362:Neoplasm Metastasis; D009944:Organoplatinum Compounds / Q000008:administration & dosage; D000077150:Oxaliplatin
chemical_list: D009944:Organoplatinum Compounds; D000077150:Oxaliplatin; D003841:Deoxycytidine; D000069287:Capecitabine; D005472:Fluorouracil