Retrospective analysis of clinical characteristics and outcomes of patients with carcinoma of unknown primary from three tertiary centers in Australia

Autor: Emma L. Boys, Bo Gao, Peter Grimison, Sarah Sutherland, Karen L. MacKenzie, Roger R. Reddel, Jia Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Cancer Medicine, Vol 13, Iss 6, Pp n/a-n/a (2024)
Druh dokumentu: article
ISSN: 2045-7634
49452282
DOI: 10.1002/cam4.7052
Popis: Abstract Background Carcinoma of unknown primary (CUP) remains an important tumor entity and a disproportionate cause of cancer mortality. Little is known about the contemporary clinical characteristics, treatment patterns, and outcomes of CUP patients based on updated international classification guidelines. We evaluated a contemporary CUP cohort to provide insight into current clinical practice and the impact of tissue of origin assignment, site‐specific and empirical therapy in a real‐world setting. Methods We conducted a retrospective cohort study of CUP patients, as defined by the updated European Society of Medical Oncology (ESMO) 2023 guidelines, across three tertiary referral centers in Australia between 2015 and 2022. We analyzed clinical characteristics, treatment patterns, and survival outcomes using the Kaplan–Meier method and Cox regression proportional hazard model between favorable and unfavorable risk groups. Results We identified a total of 123 CUP patients (n = 86 unfavorable, n = 37 favorable risk as per the 2023 ESMO guidelines). Sixty‐four patients (52%) were assigned a tissue of origin by the treating clinician. Median progression free survival (PFS) was 6.8 (95% confidence interval (CI) 5.1–12.1) months and overall survival (OS) 10.2 (95% CI 6.0–18.5) months. Unfavorable risk (hazard ratio [HR] 2.9, p = 0.006), poor performance status (HR 2.8, p
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