AI Article Synopsis
- Perioperative FLOT has emerged as the preferred treatment for patients with operable gastric or gastroesophageal adenocarcinoma, achieving a 5-year overall survival rate of 45%, compared to only 23% for surgery alone.
- The RealFLOT study, an observational trial in Italy, aimed to assess the feasibility and safety of FLOT, as well as surgical outcomes and response rates in a real-world patient population, finding that safety profiles were consistent with existing literature.
- The results showed a modest pathological complete response rate (7.3%), but significant improvements in disease-free and overall survival for patients achieving pCR, indicating its promising role as a predictor for better outcomes.
Article Abstract
Background: Perioperative FLOT (5-fluorouracil, oxaliplatin and docetaxel) has recently become the gold standard treatment for fit patients with operable gastric (GC) or gastroesophageal (GEJ) adenocarcinoma, getting a 5-year overall survival (OS) of 45%, over 23% with surgery alone.
Methods: RealFLOT is an Italian, multicentric, observational trial, collecting data from patients with resectable GC or GEJ adenocarcinoma treated with perioperative FLOT. Aim of the study was to describe feasibility and safety of FLOT, pathological complete response rate (pCR), surgical outcomes and overall response rate (ORR) in an unselected real-world population. Additional analyses evaluated the correlation between pCR and survival and the prognostic role of microsatellite instability (MSI) status.
Results: Of 206 patients enrolled that received perioperative FLOT at 15 Italian centers, 124 (60.2%) received at least 4 full-dose cycles, 190 (92.2%) underwent surgery, and 142 (68.9%) started the postoperative phase. Among patients who started the postoperative phase, 105 (51.0%) received FLOT, while 37 (18%) received de-intensified regimens, depending on clinical condition or previous toxicities. pCR was achieved in 7.3% of cases. Safety profile was consistent with literature. Neutropenia was the most common G 3-4 adverse event (AE): 19.9% in the preoperative phase and 16.9% in the postoperative phase. No toxic death was observed and 30-day postoperative mortality rate was 1.0%. ORR was 45.6% and disease control rate (DCR) was 94.2%. Disease-free survival (DFS) and OS were significantly longer in case of pCR (p = 0.009 and p = 0.023, respectively). A trend towards better DFS was observed among MSI-H patients.
Conclusions: These real-world data confirm the feasibility of FLOT in an unselected population, representative of the clinical practice. pCR rate was lower than expected, nevertheless we confirm pCR as a predictive parameter of survival. In addition, MSI-H status seems to be a positive prognostic marker also in patients treated with taxane-containing triplets.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8499559 | PMC |
| http://dx.doi.org/10.1186/s12885-021-08768-7 | DOI Listing |
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