Chemotherapy Combined With Adebrelimab and Apatinib as the Perioperative Treatment in Patients With Biliary Tract Cancer

Inclusion Criteria: * confirmed intrahepatic cholangiocarcinoma * with Resectable tumor lesion * no contraindications to surgery * with high risk of tumour recurrence * No prior systemic therapy for intrahepatic cholangiocarcinoma. * ECOG Performance Status of 0 or 1 * Child-Pugh Class: Grade A Exclusion Criteria: * History of gastrointestinal hemorrhage within 6 months prior to the start of study treatment or clear tendency of gastrointestinal hemorrhage * Abdominal fistula, gastrointestinal perforation or intraperitoneal abscess within 6 months prior to the start of study treatment * Known genetic or acquired hemorrhage or thrombotic tendency * Thrombosis or thromboembolic event within 6 months prior to the start of study treatment * Cardiac clinical symptom or disease that is not well controlled * Hypertension that can not be well controlled through antihypertensive drugs