Adjuvant Therapy for High-risk Hepatocellular Carcinoma Post Liver Transplantation

The eligible participants will start taking multi-kinase inhibitors between 4-8 weeks after liver transplantation. The choice of the specific multi-kinase inhibitor, including sorafenib, lenvatinib, or regorafenib, will be determined by the researchers based on factors such as the participant's tumor characteristics, liver function, physical condition, risk of side effects, economic status, and personal preference. The specific dosage and administration details can be found in the table provided. The maximum duration of multi-kinase inhibitor treatment will be 12 months or until any of the following conditions occur, whichever comes first: 1) The participant experiences intolerable toxic reactions that do not alleviate with dose adjustments, or 2) The participant has documented disease recurrence confirmed through imaging or withdraws from the study for other reasons.