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Perioperative chemotherapy for resectable gastric cancer: MAGIC and beyond.

ABSTRACT: Over the last 15 years, there have been major advances in the multimodal treatment of gastric cancer, in large part due to several phase III studies showing the treatment benefits of neoadjuvant and adjuvant chemotherapy and chemoradiation protocols. The objective of this editorial is to review the current high-level evidence supporting the use of chemotherapy, chemoradiation and anti-HER2 agents in both the neoadjuvant and adjuvant settings, as well as to provide a clinical framework for use of this data based on our own institutional protocol for gastric cancer. Major studies reviewed include the SWOG/INT 0116, Medical Research Council Adjuvant Gastric Infusional Chemotherapy (MAGIC), CLASSIC, ACTS-GC, Adjuvant Chemoradiation Therapy in Stomach Cancer (ARTIST) and Trastuzumab for Gastric Cancer trials. Although these studies have demonstrated that multiple approaches in terms of the timing and therapy for gastric cancer are effective, no standard of care is widely accepted and questions regarding the optimal timing of chemotherapy, the benefit of radiotherapy, the minimum required extent of lymphadenectomy and optimal chemotherapy regimen still exist. Protocols from the upcoming ARTIST II, CRITICS, TOPGEAR, Neo-AEGIS and MAGIC-B studies are outlined, and results from these studies will provide critical information regarding optimal timing and treatment regimen. Additionally, the future directions of gastric cancer research predicated on molecular profiling and tailored therapies based on targetable genetic alterations in individual patient's tumors are addressed.

SUBMITTER: Choi AH

PROVIDER: S-EPMC4481429 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Perioperative chemotherapy for resectable gastric cancer: MAGIC and beyond.

Choi Audrey H AH Kim Joseph J Chao Joseph J

World journal of gastroenterology 20150601 24

Over the last 15 years, there have been major advances in the multimodal treatment of gastric cancer, in large part due to several phase III studies showing the treatment benefits of neoadjuvant and adjuvant chemotherapy and chemoradiation protocols. The objective of this editorial is to review the current high-level evidence supporting the use of chemotherapy, chemoradiation and anti-HER2 agents in both the neoadjuvant and adjuvant settings, as well as to provide a clinical framework for use of ...[more]

PMID: 26139980

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Project description:ImportancePerioperative chemotherapy is a potential treatment for locally advanced gastric cancer. However, the optimal chemotherapy regimen remains unknown.ObjectiveTo investigate the safety and efficacy of S-1 plus oxaliplatin (SOX) vs fluorouracil, leucovorin, and oxaliplatin (FOLFOX) as a perioperative chemotherapy regimen for patients with locally advanced gastric cancer.Design, setting, and participantsIn this phase 3, open-label, multicenter, randomized clinical trial, patients from 12 Chinese hospitals were enrolled between June 2011 and August 2016, with a last follow-up date of September 2019. The primary tumor was evaluated as either invading the serosa or the adjacent structures with or without metastatic lymph nodes, and with no evidence of distant metastases. Data were analyzed from December 2019 to June 2020.InterventionsPatients were randomly assigned (1:1) to receive either 6 perioperative (2-4 preoperative and 2-4 postoperative) 3-week cycles of 130 mg/m2 oxaliplatin on day 1 and 80 to 120 mg/d S-1 orally daily for 2 weeks (SOX) or 130 mg/m2 oxaliplatin, 400 mg/m2 fluorouracil, 400 mg/m2 leucovorin, and 2400 mg/m2 fluorouracil as 46-hour infusion on day 1 (FOLFOX).Main outcomes and measuresThe primary end point was 3-year overall survival (OS). An absolute noninferiority margin of -8% was chosen.ResultsA total of 583 patients were enrolled; 293 were randomized to the SOX group and 290 were randomized to the FOLFOX group. Twelve patients (2.1%) refused preoperative chemotherapy (5 patients in the SOX group and 7 patients in the FOLFOX group), leaving a total of 288 patients in the SOX group (median [range] age, 61 [24 to 78] years; 197 men [68.4%]) and 283 patients in the FOLFOX group (median [range] age, 62 [24 to 80] years; 209 men [73.9%]) who received preoperative chemotherapy. The 3-year OS rate was 75.2% (95% CI, 70.3% to 80.5%) in the SOX group and 67.8% (95% CI, 62.5% to 73.5%) in the FOLFOX group. The absolute difference of 3-year OS rate between the 2 groups was 7.4% (95% CI, -0.1% to 14.9%), which was greater than the prespecified noninferiority margin (-8%) and showed the noninferiority of perioperative chemotherapy with SOX compared with FOLFOX.Conclusions and relevanceIn this randomized clinical trial, SOX was noninferior to FOLFOX as perioperative chemotherapy for patients with locally advanced gastric cancer and could be recommended as an alternative treatment for these patients in Asia.Trial registrationClinicalTrials.gov Identifier: NCT01364376.

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Perioperative chemotherapy for resectable gastric cancer: MAGIC and beyond.

Publications

Perioperative chemotherapy for resectable gastric cancer: MAGIC and beyond.

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