title: Long-term results of RTOG trial 8911 (USA Intergroup 113): a random assignment trial comparison of chemotherapy followed by surgery compared with surgery alone for esophageal cancer.
abstract: OBJECTIVE
  We update Radiation Therapy Oncology Group trial 8911 (USA Intergroup 113), a comparison of chemotherapy plus surgery versus surgery alone for patients with localized esophageal cancer. The relationship between resection type and between tumor response and outcome were also analyzed.
  
  
  METHODS
  The chemotherapy group received preoperative cisplatin plus fluorouracil. Outcome based on the type of resection (R0, R1, R2, or no resection) was evaluated. The main end point was overall survival. Disease-free survival, relapse pattern, the influence of postoperative treatment, and the relationship between response to preoperative chemotherapy and outcome were also evaluated.
  
  
  RESULTS
  Two hundred sixteen patients received preoperative chemotherapy, 227 underwent immediate surgery. Fifty-nine percent of surgery only and 63% of chemotherapy plus surgery patients underwent R0 resections (P = .5137). Patients undergoing less than an R0 resection had an ominous prognosis; 32% of patients with R0 resections were alive and free of disease at 5 years, only 5% of patients undergoing an R1 resection survived for longer than 5 years. The median survival rates for patients with R1, R2, or no resections were not significantly different. While, as initially reported, there was no difference in overall survival for patients receiving perioperative chemotherapy compared with the surgery only group, patients with objective tumor regression after preoperative chemotherapy had improved survival.
  
  
  CONCLUSIONS
  For patients with localized esophageal cancer, whether or not preoperative chemotherapy is administered, only an R0 resection results in substantial long-term survival. Even microscopically positive margins are an ominous prognostic factor. After a R1 resection, postoperative chemoradiotherapy therapy offers the possibility of long-term disease-free survival to a small percentage of patients.
authors: Gastrointestinal Oncology Service, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. kelsend@mskcc.org
authors: David P
authors: DP
authors: Kelsen
authors: Katryn A
authors: KA
authors: Winter
authors: Leonard L
authors: LL
authors: Gunderson
authors: Joanne
authors: J
authors: Mortimer
authors: Norman C
authors: NC
authors: Estes
authors: Daniel G
authors: DG
authors: Haller
authors: Jaffer A
authors: JA
authors: Ajani
authors: Walter
authors: W
authors: Kocha
authors: Bruce D
authors: BD
authors: Minsky
authors: Jack A
authors: JA
authors: Roth
authors: Christopher G
authors: CG
authors: Willett
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy* / Q000401:mortality / Q000556:secondary / Q000601:surgery*; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000401:mortality / Q000556:secondary / Q000601:surgery*; D002945:Cisplatin / Q000008:administration & dosage; D018572:Disease-Free Survival; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D016629:Esophagectomy / Q000379:methods; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage; D006801:Humans; D008297:Male; D008875:Middle Aged; D020360:Neoadjuvant Therapy; D015996:Survival Rate
chemical_list: D002945:Cisplatin; D005472:Fluorouracil