Immunotherapy With Durva and Treme With or Without Capecitabine in Adjuvant Treatment for Biliary Tract Cancer

Durvalumab at a fixed dose of 1500 mg as an IV infusion over 1 hour, on day 1 together with the Tremelimumab infusion. Durvalumab only infusion to be repeated every 4 weeks for a maximum of 12 months on day 1 of each cycle.

Tremelimumab at a fixed dose of 300 mg as an IV infusion over 1 hour on day 1 of cycle 1.

Capecitabine at 1250 mg/m² p.o. twice a day on days 1 to 14 of a 3-weekly cycle (eight cycles).