Adjuvant Chemotherapy for Resected Adenocarcinoma of the Esophagus, Gastro-Esophageal Junction, and Cardia: Phase II Trial (E8296) of the Eastern Cooperative Oncology Group

Abstract

Purpose To evaluate the effect of postoperative paclitaxel and cisplatin on 2-year survival in patients with completely resected adenocarcinoma of the distal esophagus, gastro-esophageal (GE) junction, and cardia. Patients and Methods We conducted a multicenter phase II trial. Patients had pathologically staged T2 node-positive to T3-4, any node status adenocarcinoma of the distal esophagus, GE junction, or gastric cardia with negative margins (R0). Treatment consisted of four cycles of paclitaxel 175 mg/m2 intravenously (IV) over 3 hours followed by cisplatin 75 mg/m2 IV every 21 days. A positive outcome was considered to be an improvement in 2-year survival rate by ≥ 20% compared to historic controls. Results Fifty-nine patients were recruited from 20 centers. Of 55 eligible patients, 49 (89%) had lymph node involvement. Forty-six patients (84%) completed all four cycles. Of the total 59 patients, 31 (56%) developed grade 3 or 4 toxicity with leukopenia/neutropenia, nausea/vomiting, and metabolic toxicities were most common. The median follow-up for surviving patients was 4 years. At 2 years, 33 patients were alive and 22 were dead, with a survival rate of 60% (95% CI, 46% to 73%; one-sided P = .0008 compared with the historic controls). Conclusion Our data suggest that adjuvant paclitaxel and cisplatin may improve survival in R0 resected patients with locally advanced adenocarcinoma of the distal esophagus, GE junction, and cardia. These results warrant further testing in randomized trials.