Clinical outcomes of transarterial chemoembolization combined with durvalumab for advanced and metastatic biliary tract cancer

Background This study aimed to evaluate the safety and efficacy of TACE combined with durvalumab for treating advanced and metastatic BTC. Research design and methods: Data were collected retrospectively from a single center. The TACE procedures were performed 1 to 19 times, with repetitions occurri...

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Main Authors: Yuefeng Hu, Jian Wei, Xuedong Sun, Guang Chen, Tianhao Su, Zeran Yang, Xu Lu, Long Jin
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Future Science OA
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Online Access:https://www.tandfonline.com/doi/10.1080/20565623.2025.2526947
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Summary:Background This study aimed to evaluate the safety and efficacy of TACE combined with durvalumab for treating advanced and metastatic BTC. Research design and methods: Data were collected retrospectively from a single center. The TACE procedures were performed 1 to 19 times, with repetitions occurring every 4 to 12 weeks based on the patient’s liver function and tumor shrinkage. Durvalumab was given as an intravenous injection every three weeks at a dose of 1000 to 1500 mg.Results The estimated median progression-free survival (PFS) was 9.0 months (95% CI: 6.8 to 11.2), with a 1-year PFS rate of 23.8%. The estimated median overall survival (OS) was 16.0 months (95% CI: 7.5 to 24.5), with a 1-year OS rate of 58.7%. The investigator-confirmed objective response rate (ORR) was 35.9%. Elevated baseline carcinoembryonic antigen (CEA) levels and neutrophil-to-lymphocyte ratio (NLR) ≥ 3 showed negative correlations with PFS (p = 0.035, CEA; p = 0.038, NLR) and OS (p = 0.040, NLR). Adverse events occurred in 36 patients (92.3%). Additionally, 7 patients (17.9%) experienced immune-mediated AEs (imAEs).Conclusions These results indicate promising efficacy and acceptable safety for the combination of TACE and durvalumab as a first-line treatment for advanced and metastatic BTC.
ISSN:2056-5623