Durvalumab Combined With Chemotherapy Neoadjuvant Therapy of Biliary Tract Cancer

This phase II trial studies how well gemcitabine, cisplatin, nab-paclitaxel and durvalumab work before surgery in treating participants with Biliary Tract Cancer. The international multicenter phase III clinical study TOPAZ-1 has confirmed that durvalumab combined with gemcitabine and cisplatin can bring survival benefits to advanced BTC. Drugs used in chemotherapy, such as nab-paclitaxel, cisplatin, and gemcitabine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving combination chemotherapy and Durvalumab before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed.