Gastric cancer is a highly fatal malignancy, and surgery alone often does not provide a cure, even for relatively early stages of disease. Various approaches have been adopted around the world to improve surgical outcomes; however, there currently is no global consensus with regard to the extent of surgery or the timing and choice of chemotherapy and radiation. Here we review the evidence supporting current approaches to resectable gastric cancer, including discussion of the optimal extent of surgery and lymphadenectomy, adjuvant chemotherapy, postoperative chemotherapy with chemoradiation, and perioperative chemotherapy. Additionally, we discuss novel approaches, including intensified chemotherapy (in neoadjuvant, perioperative, and adjuvant settings), pre- and postoperative chemoradiation in combination with chemotherapy, and the role of biologics and targeted therapy. Finally, we examine the promise of molecular subtyping and potential biomarkers for improved patient selection. Upcoming and future trials should help answer questions regarding the optimal sequencing and choice of treatments, in order to further improve survival and move us towards ultimately curing more patients with resectable gastric cancer.
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