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Review
. 2018 Dec 28:11:379-388.
doi: 10.2147/CMAR.S157156. eCollection 2019.

Biliary tract cancer: current challenges and future prospects

Michele Ghidini  1 , Claudio Pizzo  1 , Andrea Botticelli  2 , Jens Claus Hahne  3 , Rodolfo Passalacqua  1 , Gianluca Tomasello  1 , Fausto Petrelli  4
Affiliations
Review

Biliary tract cancer: current challenges and future prospects

Michele Ghidini et al. Cancer Manag Res. .

Abstract

Purpose: Incidence and mortality of biliary tract carcinoma (BTC) are increasing, especially in South America and Asia. Such a disease often bears a dismal prognosis because of diagnosis occurring at late stages and for the frequent relapses after surgery. The aims of this review were to summarize the state of the art of the treatment of BTC and give a view at possible future prospects linked with molecular profiling, immunotherapy, and targeted therapies.

Design: We conducted a systematic literature search using MEDLINE and the 2018 ASCO Meeting abstract databases to identify published clinical trials, translational series, and meeting abstracts. All significant papers and abstracts available to date were included.

Results: For resected BTC, thanks to the BILCAP study, adjuvant chemotherapy (CT) with capecitabine should be regarded as the new standard of care. For locally advanced inoperable and metastatic diseases, the use of chemoradiotherapy and radioembolization has not been supported by any randomized Phase III study. The standard of care remains the combination of CT with gemcitabine and cisplatin, as reported by the ABC-02 trial. All targeted therapies have failed to improve the survival outcomes, either in combination with CT or as single agents and are not recommended in the treatment of BTC. Whole-exome sequencing and molecular profiling have helped in identifying genetic signatures typical of different BTC subtypes. With this support, new trials with targeted agents and immunotherapy have been designed, and results are awaited.

Conclusion: BTC still remains a disease with very few treatment options. Different BTC subtypes own peculiar gene mutations and pathways alterations. Therefore, molecular profiling may be the only key to enable new tailored strategies with targeted agents and immunotherapy.

Keywords: adjuvant treatment; cholangiocarcinoma; first-line treatment; molecular profiling; surgery; targeted therapies.

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Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Risk factors and molecular alterations of BTC. Abbreviations: BTC, biliary tract carcinoma; eCCA, extrahepatic cholangiocarcinoma; GBC, gallbladder cancer; iCCA, intrahepatic cholangiocarcinoma.
See this image and copyright information in PMC

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