What are the possible side effects of using regorafenib?

Regorafenib is a multi-target tyrosine kinase inhibitor (TKI), mainly used to treat advanced colorectal cancer, gastrointestinal stromal tumor (GIST) and hepatocellular carcinoma (HCC). Although the drug has a significant effect in extending patient survival, it can also cause a range of side effects.

One of the most common side effects is hand-foot skin reaction (HFSR), in which patients may experience redness, swelling, pain, peeling, and even sores on the palms and soles of the feet. Gastrointestinal adverse reactions are also common side effects of regorafenib, including nausea, vomiting, diarrhea, decreased appetite, and stomatitis, which may affect patients' nutritional intake and quality of life. In addition, regorafenib may cause abnormal liver function, manifested as increased transaminases (AST, ALT) and bilirubin, and some patients may even develop liver failure. Therefore, liver function indicators need to be closely monitored during treatment.

Hypertension is another side effect that requires attention during regorafenib treatment. Some patients may experience elevated blood pressure, increasing the risk of cardiovascular disease. Therefore, it is recommended to monitor blood pressure regularly and perform antihypertensive treatment when necessary. The risk of bleeding is also one of the potential side effects of regorafenib. Some patients may experience nose bleeding, gum bleeding, or gastrointestinal bleeding. In severe cases, it may lead to anemia or other complications. In addition, regorafenib may cause fatigue, weakness, joint and muscle pain, affecting patients' daily life.

Although regorafenib may cause a variety of side effects, with appropriate dose adjustment, symptom management, and combined supportive care, most patients can still tolerate the drug well and benefit from it. Therefore, during treatment with regorafenib, patients should pay close attention to their own reactions and communicate with their doctors in a timely manner to ensure the safety and effectiveness of the treatment.

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