Biomarker Discovery in Patients With Advanced Biliary Tract Cancer
Biliary tract cancer is a rare gastrointestinal malignant neoplasm and includes intrahepatic cholangiocarcinoma, extrahepatic cholangiocarcinoma, and gall bladder cancer. Curative surgical resection offers the only chance for cure. However, most patients with BTC are diagnosed at an unresectable stage. Therefore, the survival outcomes of patients with advanced biliary tract cancer remain dismal. The combination of gemcitabine and cisplatin has become the current standard for advanced BTCs since the landmark ABC-02 trial in 2010. However, the median overall survival of Gem/Cis chemotherapy is less than 1 year. Recently, a triplet regimen of gemcitabine, cisplatin, and nab-paclitaxel showed promising results in a single-arm phase II multicenter study. However, biliary tract cancer is a group of heterogenous diseases by site and genetic alteration, and this diversity may lead differences in response to systemic chemotherapy. Transcriptome analysis through RNA-sequencing has rarely been performed in advanced biliary tract cancer, and even if it has performed, only small number of patients were included. Further research on multi-omics data is needed on the necessity and clinical significance in treatment of biliary tract cancer.
Start: May 2021