title: UFT/leucovorin vs 5-FU/leucovorin in colon cancer.
abstract: Adjuvant chemotherapy has been shown to alter the natural history of resected colon cancer. Two regimens (fluorouracil [5-FU] plus leucovorin and 5-FU plus levamisole) have been found to prolong disease-free survival and overall survival in affected patients. Previous comparisons of these two regimens indicate that 5-FU plus leucovorin may offer a small disease-free survival and overall survival advantage. Evidence that UFT (uracil and tegafur) plus oral leucovorin is associated with significant antitumor activity and has an acceptable toxicity profile makes this a logical formulation for the adjuvant treatment of colon cancer. The National Surgical Adjuvant Breast and Bowel Project Protocol C-06 is a randomized comparison of the relative efficacies of 5-FU plus leucovorin vs UFT plus leucovorin. Preliminary analysis of the toxicity findings among 1,530 evaluable patients indicates that both regimens are well tolerated and have similar toxicity profiles.
authors.affiliation: National Surgical Adjuvant Breast and Bowel Project Operations Center, Allegheny University of Health Sciences, Pittsburgh, Pennsylvania, USA.
authors.forename: R E
authors.initials: RE
authors.lastname: Smith
authors.forename: B C
authors.initials: BC
authors.lastname: Lembersky
authors.forename: H S
authors.initials: HS
authors.lastname: Wieand
authors.forename: L
authors.initials: L
authors.lastname: Colangelo
authors.forename: E P
authors.initials: EP
authors.lastname: Mamounas
mesh_terms: D000368:Aged; D000964:Antimetabolites, Antineoplastic / Q000008:administration & dosage / Q000627:therapeutic use*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use*; D017024:Chemotherapy, Adjuvant; D003110:Colonic Neoplasms / Q000188:drug therapy* / Q000601:surgery; D018572:Disease-Free Survival; D004359:Drug Therapy, Combination; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D002955:Leucovorin / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D005641:Tegafur / Q000008:administration & dosage; D016896:Treatment Outcome; D014498:Uracil / Q000008:administration & dosage
chemical_list: D000964:Antimetabolites, Antineoplastic; D005641:Tegafur; D014498:Uracil; D002955:Leucovorin; D005472:Fluorouracil