ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2023
Impact of antibiotic use before definitive concurrent chemoradiation in patients with locally advanced non-small cell lung cancer.
Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Antibiotic Usage During Surgery may be Correlated With Survival in Radically Resected Non-Small-Cell Lung Cancer Patients.Clinical Medicine Insights. Oncology · 2025Article
- The Gut Microbiome from a Biomarker to a Novel Therapeutic Strategy for Immunotherapy Response in Patients with Lung Cancer.Current oncology (Toronto, Ont.) · 2023Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
purposeThis study evaluated whether antibiotic treatment before chemoradiotherapy influenced outcomes in patients with locally advanced non-small cell lung cancer (LA-NSCLC).
methodsThe records of LA-NSCLC patients treated with chemoradiotherapy between 2010 and 2017 at West China Hospital of Sichuan University were retrospectively examined together with their antibiotic use (antibiotic type, duration of treatment, and time between discontinuation and chemoradiotherapy). The influence of antibiotics on progression-free survival (PFS) and overall survival (OS) was evaluated with Kaplan-Meier curves and univariate and multivariate Cox regression.
resultsOf 522 patients, 176 had received intravenous broad-spectrum antibiotics in the month before chemoradiotherapy. Antibiotic use was linked to both reduced PFS (7.9 vs. 13.4 months, p < 0.001) and OS (20.4 vs. 25.3 months, p = 0.049). Multivariate regression demonstrated that antibiotic treatment was an unfavorable independent prognostic factor for LA-NSCLC patients who received chemoradiotherapy (HR 1.234; 95% CI 1.019-1.494; p = 0.031). Prognosis was also influenced by antibiotic type, length of treatment, and interval between discontinuation and chemoradiotherapy initiation. β‑lactamase inhibitors were found to be the most harmful (median OS for β‑lactamase inhibitors/fluoroquinolones/cephalosporins: 16.5/19.9/25.9 months, p = 0.045). Cutoff values for interval and duration calculated by the X‑tile procedure showed that intervals of 7-16 days or durations ≤ 6 days did not significantly affect OS relative to untreated patients (intervals: p = 0.9; duration: p = 0.93).
conclusionAntibiotic treatment for longer than 6 days, especially with β‑lactamase inhibitors, was associated with poor prognosis. Furthermore, delaying chemoradiotherapy for 7-16 days after antibiotic discontinuation may reduce these negative effects.
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Registered trials
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