How many times do Fam-trastuzumab deruxtecan-nxki usually take?

Fam-trastuzumab deruxtecan-nxki is given by intravenous injection, which means the drug goes directly into the patient's bloodstream through an IV or port. It must be injected slowly, so the needle stays in place for at least 30-90 minutes. It is usually given every three weeks unless the cancer worsens or unacceptable side effects occur. Patients may also receive other medications to help prevent nausea and vomiting.

Some breast cancer cells make (overexpress) too many copies of the HER2 gene, which produces a protein called the HER2 receptor. The fam-trastuzumab part of detrastuzumab attaches to the HER2 protein, preventing it from receiving growth signals, and the topoisomeraseI inhibitor (deruxtecan) is the chemotherapy part that, like other chemotherapy drugs, interferes with the cell's ability to replicate. Trastuzumab is designed to deliver topoisomerase I inhibitors to cancer cells in a targeted manner by linking them to fam-trastuzumab. fam-trastuzumab then carries a topoisomerase I inhibitor to the HER2 receptor. In this way, topoisomerase I inhibitors are less toxic to healthy cells and more effective in treating cancer cells.

Detrastuzumab is a new type of injectable anti-cancer drug. The original drug has been marketed in China, but it has not yet entered the scope of medical insurance. It is a strictly controlled drug. The domestic price is not yet clear. The Hong Kong version of Detrastuzumab Specifications may cost more than 10,000 yuan per box of 100mg. The Hong Kong original version of Detrastuzumab may be more than RMB 10,000 per box. Tocilizumab Specifications of the original drugThe price of 100mg per box may be around 15,000 yuan (the price may fluctuate due to the exchange rate). The ingredients of the two drugs are basically the same. There is currently no generic version of trastuzumab on the market. For more specific prices and drug information, please consult the medical consultant of the drug.