NCT02809898 2019-10-17The Role of ctDNA and PBMC in Treatment of Biliary Tract CancerRenJi HospitalUnknown30 enrolled
NCT00487851 2013-04-12Comparing Endoscopic Based Stent Strategy Versus Bypass Surgery in Non-resectable Periampullary CancerKarolinska InstitutetPhase 2 Withdrawn