This clinical trial is focused on studying treatments for biliary tract cancer, a type of cancer that affects the bile ducts. The study is investigating the effectiveness of a combination of medications, including durvalumab (also known as MEDI4736), tremelimumab, and capecitabine. Durvalumab and tremelimumab are types of immunotherapy, which help the body’s immune system fight cancer, while capecitabine is a chemotherapy drug that works by slowing or stopping the growth of cancer cells.
The purpose of this study is to assess how well these treatments work together in preventing the return of cancer after surgery. Participants in the study will receive either the combination of durvalumab and tremelimumab with capecitabine or without capecitabine. The study will monitor the participants over a period of time to see if the cancer comes back and to evaluate their overall survival and quality of life. Some participants may receive a placebo, which is a substance with no active medication, to compare the effects of the actual treatments.
Throughout the study, participants will undergo regular check-ups and tests to monitor their health and the effects of the treatment. The study aims to gather information on the safety of the treatments and their impact on liver function, as well as to collect tissue and blood samples for future research. The study is expected to last until April 2025, with the goal of improving treatment options for patients with biliary tract cancer.



Germany