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- W2295516904 abstract "4510 Background: Combined pre- and postoperative chemotherapy improves overall survival in operable gastric cancer, although postoperative treatment is not feasible in half of the patients. We conducted a randomized phase III trial with thorough attention to preoperative staging and to the extent of surgical resection to assess the value of neoadjuvant chemotherapy (CTx). Methods: Patients with locally advanced adenocarcinoma of the stomach and cardia were randomized between primary surgery or two 48-day cycles of weekly folinic acid 500 mg/m 2 /2h, 5-FU 2,000 mg/m 2 /24h plus biweekly cisplatin 50 mg/m 2 /1h followed by surgery. The study was designed to detect an improvement in median survival from 17 months with surgery to 24 months with CTx plus surgery (HR=0.708, power of 80%, type I error of 4% to allow for an interim analysis). It was planned to randomize 360 patients in order to observe the 262 deaths required for the final analysis. Results: From 7/99 to 2/04, 144 patients were randomized (72:72) with comparable baseline characteristics. Median follow-up is 4.4 years. Based on 67 deaths, overall survival between the two arms did not differ (HR=0.84; 95% CI: 0.52 to 1.35; p=0.466). Median survival exceeded 36 months in both arms. Due to low accrual, this trial was stopped early. The unexpected long median survival in the surgery arm would have made the primary objective difficult to reach anyway. Based on 77 events, difference in time to progression was borderline significant (HR=0.66; 95% CI, 0.42–1.03; p=0.065). Response rate to CTx was 35.2% (95% CI: 23.7%-45.7%). The R0-resection rate was 81.9 % after CTx as compared to 66.7% with surgery alone (P=0.036). There were no major differences in intra- or postoperative complications. Conclusions: This prematurely closed trial showed a significantly increased rate of R0 resections after CTx although it could not demonstrate a survival benefit. The outcome after a radical surgical procedure alone with extended lymphadenectomy was better than expected. No significant financial relationships to disclose." @default.
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- W2295516904 date "2009-05-20" @default.
- W2295516904 modified "2023-10-16" @default.
- W2295516904 title "Neoadjuvant chemotherapy versus surgery alone for locally advanced adenocarcinoma of the stomach and cardia: Randomized EORTC phase III trial #40954" @default.
- W2295516904 doi "https://doi.org/10.1200/jco.2009.27.15_suppl.4510" @default.
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