• Antoine Adenis, Emmanuelle Samalin, Thibault Mazard, Fabienne Portales, Anne Mourregot, and Marc Ychou.
• Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France; IRCM, Inserm, Université Montpellier, ICM, Montpellier, France. Electronic address: antoine.adenis@icm.unicancer.fr.
• Bull Cancer. 2020 Jan 1; 107 (1): 54-60.

AbstractFLOT-4 study recently reports that in patients with gastric cancer, perioperative chemotherapy with 5-fluorouracile, leucovorin, oxaliplatin and docetaxel (FLOT regimen) increases survival over standard ECF/ECX regimen (epirubicine, cisplatine and 5-fluorouracile [or capecitabine]). Does this study, make FLOT a new standard of perioperative chemotherapy for localized gastric cancer? Seven hundred and sixteen patients were included into that randomized study. Thirty seven per cent and 46% of the patients received the full planned treatment in the ECF/ECX group and in the FLOT group, respectively. The primary aim of FLOT-4 was met as FLOT significantly reduced the relative risk of death vs. ECF/ECX (HR: 0.77; 95% CI: 0.63-0.94; P=0.012). Median survival is increased by 15 months with FLOT (50 months vs. 35 months). FLOT also provided better complete resection rates, better complete pathological response rates, and better disease-free survival than ECF/ECX. FLOT is more likely associated with the following adverse events: diarrheas, leuco-neutropenia (including 51% of severe ones), infections (including 18% of severe ones), and peripheral neuropathy. On the contrary, ECF/ECX provided more likely severe nausea and vomiting, severe anemia, and thromboembolic events. Overall, the number of patients with related serious adverse events (including those that occurred during hospital stay for surgery) was similar in the two groups, as was the number of toxic deaths and postoperative deaths. FLOT should be regarded as the recommended perioperative chemotherapy for patients with gastric cancer or adenocarcinoma of the gastro-esophageal junction. However, some doubts remain as regards of its use in the daily practice for unselected patients.Copyright © 2020 Société Française du Cancer. Published by Elsevier Masson SAS. All rights reserved.

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