Short interval circulating tumor DNA (ctDNA) kinetics as a predictor of tumor response in patients with gastrointestinal (GI) cancer receiving immune checkpoint inhibitor (ICI)-based treatment. This ...

Background: Anti-programmed cell death protein 1 and its ligand (anti-PD1/PDL1) have been proposed as a promising therapeutic option for advanced biliary tract cancer (aBTC). Given the scarce ...