This is a perspective, single-arm trial. According to previous studies, the PFS of HAIC for unresectable intrahepatic cholangiocarcinoma is approximately 8 - 10 months, and one year progression free rate is about 40%. We assumed that the study could detect 20% absolute difference and 1 year PFS rate could achieve 60% PFS by (FOLFOX + H101) over conventional HAIC (FOLFOX). Simon's two-stage design is used to estimate the sample size, with α value of 0.05 and power of 0.9. A total sample size of 66 participants are required.
Oncolytic viruses can selectively replicate in and destroy tumor cells. Recent studies indicate that recombinant human adenovirus type 5 (H101), which is the first approved oncolytic virus drug in the world, shows anti-tumor effects on liver cancer. This study aims to further verify the effect and safety of recombinant human adenovirus type 5 combined with HAIC in the treatment of intrahepatic mass-forming cholangiocarcinoma.