ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2026
Lack of association between prior or concurrent malignancies and overall survival in gastroesophageal cancer: evidence from a large European single-center cohort.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundHistory of malignant disease is a common exclusion criterion in clinical cancer trials, yet data on the impact of cancer survivorship on outcome in gastroesophageal cancer patients are scarce.
methodsRetrospective association analyses of self-reported prior or concurrent malignancies with patient characteristics, tumor characteristics, symptoms and overall survival (OS) were performed in 1491 gastroesophageal cancers patients treated between 01/01/2000 and 31/12/2021 at the Medical University of Vienna.
resultsOf 1491 patients 255 (18%) had other primary cancer diagnoses, of which 185 (73%) occurred before, 52 (20%) at the same time as and 18 (7%) both before and at the same time as gastroesophageal cancer diagnosis. 205 (80%) patients had one, 43 (17%) had 2 and 7 (3%) had 3 other malignancies. History of other malignancies was associated with older age (p < 0.0001), squamous cell histology (p = 0.018), less aggressive localized tumor stages (p = 0.037) and fewer acid reflux (p = 0.011). There was neither an association between history of other primary malignancies nor the number of other cancer entities and OS (p = 0.47; p = 0.43).
conclusionSelf-reported history of other malignant diseases is frequent in a real-life European gastroesophageal cancer cohort and was not statistically significantly associated with outcome, but rather with older age and squamous cell histology. Our data emphasize that cancer survivors should not be categorically excluded from clinical cancer trials due to fear of dismal prognosis. Prospective research is warranted to improve eligibility for this subgroup.
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