A Phase 2, Randomized, Controlled, Multicenter Study of Adjuvant Adebrelimab Combined With Capecitabine in Resected Cholangiocarcinoma With High-risk Factors: ACHIEVE
Biliary tract malignancies (BTC) are malignant tumors that originate from the epithelium of the bile ducts. Currently, the optimal treatment for biliary tract malignancies is radical surgical resection. In recent years, with the advancement of imaging technology and surgical techniques, there has been certain progress in the diagnosis and treatment of biliary tract malignancies. However, the surgical resection rate and long-term survival rate after surgery are still not satisfactory, and the high postoperative recurrence rate is an important factor affecting the long-term survival of patients. Therefore, there is an urgent need to explore new postoperative adjuvant treatment plans to reduce postoperative tumor recurrence, which is of great significance for extending the survival of patients with biliary tract malignancies. In the NCCN and CSCO guidelines, capecitabine is listed as a category I recommendation for adjuvant treatment of biliary tract malignancies (BTC). However, in clinical practice, the use of capecitabine or tegafur for postoperative patients with cholangiocarcinoma at high risk of recurrence still has a high recurrence rate. Therefore, there is still a huge unmet need in the clinical adjuvant treatment after surgery for biliary tract malignancies. Based on the above background, we plan to carry out a randomized, open, and comparative study to observe the efficacy and safety of Adebrelimab combined with capecitabine for adjuvant treatment in patients with biliary tract malignancies after surgery, and to explore treatment methods to improve the efficacy of postoperative adjuvant treatment for cholangiocarcinoma.
• Patients must sign an informed consent form;
• Ages 18-75, both genders eligible;
• ECOG performance status score (PS score) of 0 or 1;
• Patients with histologically confirmed cholangiocarcinoma (including intrahepatic cholangiocarcinoma and hilar cholangiocarcinoma), who have undergone R0 resection and have high-risk factors for recurrence;
• High-risk factors are defined as follows:
• Intrahepatic cholangiocarcinoma ( Single tumor \> 5 cm, multiple tumors, liver capsule breach, vascular invasion, regional lymph node metastasis) Hilar cholangiocarcinoma (Tumor invasion into surrounding tissues, vascular invasion, regional lymph node metastasis)
• No evidence of recurrence or metastatic lesions on imaging within 28 days prior to randomization;
• No prior systemic anti-cancer therapy (including radiotherapy, chemotherapy, targeted therapy, immunotherapy) before curative resection;
• Laboratory test values within 7 days prior to the first dose of study medication meet the following criteria:
• Complete blood count: (except for hemoglobin, no blood transfusion or use of granulocyte colony-stimulating factor \[G-CSF\], no medication correction within 2 weeks prior to screening):
• Absolute neutrophil count ≥1.5×109/L; Platelets ≥75×109/L; Hemoglobin ≥90 g/L;
• Biochemical tests:
• Serum albumin ≥30g/L; Serum total bilirubin ≤1.5×ULN; ALT and AST ≤3×ULN; Serum creatinine ≤1.5×ULN; or Cr clearance rate \>50 mL/min International normalized ratio (INR) ≤1.2 or prothrombin time (PT) exceeding the normal control range by ≤2 seconds; Urine protein \<2+ (if urine protein ≥2+, a 24-hour (h) urine protein quantification can be performed, and a 24h urine protein quantification of \<1.0g is eligible for enrollment);
• Life expectancy of more than 6 months.