Real-life effectiveness of FLOT in resectable gastric cancer: existing challenges.

Background: Gastric cancer has a high mortality rate. Therapeutic management must be multidisciplinary to offer the patient the best, personalized strategy.

Patients and methods: We performed an observational study to evaluate the pathological response, survival and nutritional status in patients with resectable gastric cancer and candidates for perioperative chemotherapy with the fluorouracil, leucovorin, oxaliplatin and docetaxel (FLOT) regimen versus other regimens. The primary endpoints were pathological response rate, care continuity rate and survival outcomes. A total of 96 patients attending the Hospital "Policlinico San Matteo" in Pavia (Italy) between January 2012 and August 2022 were selected for the study.

Results: Regarding pathological response rates, the best rate (TRG-0) was recorded in the FLOT group with a percentage of 6.2% compared with 4.7% in the NO-FLOT arm (p=0.052). The highest failure rate to complete the post-operative phase was 75% in the NO-FLOT group and only 25% in the FLOT group (p=0.007). Survival outcomes were better in the FLOT group with a median disease-free survival of 30 versus 22.2 months (p=0.586).

Conclusions: Despite the limitations, the results obtained were consistent with the medical literature and confirmed the effectiveness of the FLOT chemotherapy in real life. Nevertheless, some questions remain: the application in elderly patients, the addition of immunotherapy in patients with microsatellite instability or with high PD-L1 levels, comparison with chemoradiotherapy in junctional cancers and real cure rates. The FLOT regimen has revolutionized the treatment of resectable gastric cancer, but caution is needed before considering it an absolute standard of care.