Biliary tract cancers, encompassing bile duct and gallbladder malignancies, originate from the bile duct epithelium. Cholangiocarcinoma, or bile duct cancer, affects approximately 8,000 individuals annually in the United States, while gallbladder cancer is even less common, with an incidence rate of about 2 per 100,000 people. These cancers are frequently diagnosed at advanced stages, leading to poor prognoses. In the US and EU, treatment options remain scarce, although recen