Adjuvant radiotherapy and chemotherapy offer a recurrence and survival benefit in patients with resected perihilar cholangiocarcinoma

Jung Ho Im, Gi Hong Choi, Woo Jung Lee, Dai Hoon Han, Seung Woo Park, Seungmin Bang, Hye Jin Choi, Jinsil Seong

Research output: Contribution to journalArticlepeer-review

Abstract

Background and objectives: The objective of this study was to investigate the benefits of adjuvant treatment for patients with resected perihilar cholangiocarcinoma (PHC). Methods: Between 2001 and 2017, 196 patients with PHC adenocarcinoma underwent curative resection. The patients were divided into four groups according to adjuvant treatment type: surgery alone (S; N = 90), surgery with chemotherapy (S+CTx; N = 67), surgery with radiotherapy (S+RTx; N = 18), and surgery with chemoradiotherapy (S+ CRTx; N = 21). Results: The median follow-up duration of the surviving patients was 58 months. The 5-year rate of overall survival (OS) was 32%. In multivariate analysis, receiving S+CTx and S+CRTx were significant prognostic factors for OS. In subgroup analyses of the R1 resection patients, the S+CRTx group showed better OS than the S group (p < 0.05). In subgroup analyses of the stage III–IVA patients with a negative resection margin, the S+CTx and S+CRTx groups showed superior OS than the S group (p < 0.05). Conclusions: Our data suggest that adjuvant chemoradiotherapy might be considered for PHC patients with R1 resection. Adjuvant chemotherapy or chemoradiotherapy is suggested for stage III–IVA patients with R0 resection. The results of this study require validation through further prospective studies.

Original languageEnglish
Pages (from-to)2435-2445
Number of pages11
JournalJournal of cancer research and clinical oncology
Volume147
Issue number8
DOIs
Publication statusPublished - 2021 Aug

Bibliographical note

Funding Information:
This work has been presented in the third Asia-Pacific Cholangiocarcinoma Conference, March 15?16, 2019, Taipei, Taiwan. The abstract of this study was accepted for poster presentation at the Annual Meeting of the American Society for Radiation Oncology, Chicago, IL (September, 2019). We would like to thank Editage (www.editage.co.kr ) for English language editing.

Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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