The goal of this clinical trial is to evaluate in patients with advanced intrahepatic cholangiocarcinoma harboring FGFR2 fusion/rearrangement. The main questions it aims to answer are: To evaluate the objective response rate (ORR) of HMPL-453 tartrate in the treatment of patients with advanced intrahepatic cholangiocarcinoma (ICC) habouring fibroblast growth factor receptor (FGFR) 2 fusions/rearrangements after at least one line of systemic treatment failure or intolerance Participants will receive HMPL-453 tartrate 300 mg QD orally (for 14 consecutive days \[Days 1 to 14\] followed by 7 days off \[Day 15 to 21\], 21 days as a treatment cycle.\]
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Overall response rate (ORR)
Timeframe: Measured up to 6 months after the last patient has been enrolled or all patients have finished their last PFS follow up, whichever comes first