ArticleAnnals of medicine2025
Timing of postoperative chemotherapy and prognosis in neoadjuvant-treated gastric cancer patients: a multicenter real-world cohort study.
Article in Annals of medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Impact of postoperative chemotherapy in patients resected for esophagogastric adenocarcinoma with major pathological response after preoperative chemotherapy: a study from the FREGAT database.Therapeutic advances in medical oncology · 2026Article
- Association between postoperative nutritional status and time to initiation of adjuvant chemotherapy in gastrointestinal cancers: a restricted cubic spline analysis.Frontiers in nutrition · 2026Article
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11 authors.
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Abstract
backgroundThe optimal time to chemotherapy (TTC) in locally advanced gastric cancer (LAGC) patients treated with neoadjuvant chemotherapy (NLAGC) remains unclear.
methodsConsecutive 524 patients with NLAGC between Jan. 2010 and Dec. 2022 were identified. Patients were categorized into three groups: TTC < 6w, 6w ≤ TTC ≤ 8w, and TTC > 8w. Survival analysis was conducted using the Cox proportional hazards model to assess the impact of TTC on gastric cancer-specific mortality (GCSM) and all-cause mortality (ACM). Cumulative competing risk curves were employed to evaluate the incidence of competing events.
resultsOverall, 451 patients were included.Cumulative competing risk curves showed that the 3-year ACM and GCSM were significantly lower in the 6w ≤ TTC ≤ 8w group (ACM: 19.7% vs. 37.2% vs. 39.7%, GCSM: 19.7% vs. 35.2% vs. 38.8%) compared to the TTC < 6w and TTC > 8w groups. Compared to patients with 6w ≤ TTC ≤ 8w, those with TTC < 6w or >8w had an increased risk of GCSM (HR: 2.792 and HR: 2.343, respectively) and ACM (HR: 3.102 and HR: 2.719, respectively) after adjusting for confounders. Furthermore, 6w ≤ TTC ≤ 8w had later peak recurrence compared to TTC < 6w and TTC > 8w (Peak months: 9.7
conclusionA postoperative chemotherapy timing of 6-8 weeks was associated with better survival and delayed recurrence in NLAGC patients. These findings suggest that the 6-8 week time-window should be a key timeframe for personalized postoperative adjuvant chemotherapy decisions.
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