What happens once the targeted drug dabrafenib is stopped?

Once dabrafenib (Dabrafenib) is stopped, patients may experience a range of conditions because discontinuation of the drug affects targeted therapies for cancers carrying the BRAF V600E or V600K gene mutation. Here are some possible scenarios:

1. Tumor recurrence: Dabrafenib is mainly used to block the activity of BRAF kinase and inhibit the growth and spread of cancer cells. After stopping the drug, the inhibition of this signaling pathway is lost, which may lead to the reactivation of cancer cells. Therefore, tumor recurrence is a possible scenario and may exhibit more aggressive characteristics.

2. Resistance: During long-term use of dabrafenib, some patients may develop drug resistance. This means that even if there is a good initial response to treatment with dabrafenib, over time the drug may become less effective. After discontinuing dabrafenib, tumors may become further less sensitive to the drug, making future treatment options more challenging.

3. Withdrawal syndrome: Sometimes discontinuation of dabrafenib may cause withdrawal syndrome, which may manifest as fatigue, headache, nausea, muscle pain and other uncomfortable symptoms. These symptoms are usually temporary and lessen over time.

4. For other treatment options: After stopping dabrafenib, doctors will usually consider other treatment options, which may include other targeted drugs, immunotherapy, chemotherapy, etc. The choice of treatment will depend on the characteristics of the tumor, the patient's overall health, and the response to previous treatments.

Dabrafenib is already on the market in China and has been included in medical insurance. Patients can buy it domestically. The price is about 10,000 yuan in China. The price is still relatively expensive. Please consult the local hospital pharmacy for specific prices. Dabrafenib, which is relatively cheap abroad, is mainly a generic drug, mainly a Laotian generic drug. The price is about two to three thousand yuan, which is much cheaper than domestic drugs. The ingredients of foreign generic drugs and domestic original drugs are basically the same.