ArticleOral oncology2022
The role of concomitant chemoradiotherapy versus radiation alone in T1-3N0 HPV-positive and HPV-negative oropharyngeal squamous cell carcinoma.
Article in Oral oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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7 authors at 2 institutions in 1 country.
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Abstract
objectiveTo evaluate the role of curative intent concurrent chemoradiation (CCRT) vs radiation (RT) alone for T1-T3N0 HPV-positive and HPV-negative oropharyngeal squamous cell cancer (OPSCC).
methodsThe NCDB was queried for patients diagnosed between 2010 and 2017 with cT1-3N0M0 OPSCC treated with definitive RT or CCRT. Univariable analysis (UVA) and multivariable analysis (MVA) Cox regression analysis was performed with OS as the endpoint. Propensity score matching (PSM) 1:1 was performed. Interaction test to assess heterogeneity of treatment effect.
resultsA total of 2830 patients were queried. On MVA, CCRT was associated with improved OS for T3N0 tumors (HR 0.49; 95% CI 0.39-0.63) but not for T1N0 (HR 1.43; 95% CI 0.99-2.07) and T2N0 (HR 0.92; 95% CI 0.75-1.13). For T3 patients, CCRT improved OS for HPV-negative (HR 0.43; 95% CI 0.31-0.59) and HPV-positive tumors (HR 0.39; 95% CI 0.25-0.61). After PSM, CCRT was not statistically different to RT for patients with T1-2N0 HPV-negative tumors (HR 1.10; 95% CI 0.85-1.43; p = 0.48) and T1-2N0 HPV-positive tumors (HR 1.15; 95% CI 0.79-1.68; p = 0.45). After PSM, CCRT improved OS compared to RT alone for patients with T3N0 HPV-negative (HR 0.43; 95% CI 0.31-0.59; p < 0.01) and HPV-positive tumors (HR 0.39; 95 %CI 0.25-0.61; p < 0.01).
conclusionsCCRT is associated with improved OS in HPV-positive and HPV-negative T3N0 OPSCC. RT alone vs. CCRT demonstrated similar OS for T1-T2N0 OPSCC for both HPV negative and HPV positive tumors.
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