What kind of targeted drug is lapatinib?

Lapatinib (Lapatinib) is a targeted therapy drug mainly used to treat HER2 positive breast cancer. HER2 (human epidermal growth factor receptor 2) is a receptor protein that, when overexpressed or abnormally activated, promotes the growth and spread of breast cancer cells. Lapatinib's mechanism of action involves inhibiting the activation of the HER2 receptor, thereby reducing the growth and division of cancer cells.

It is worth noting that lapatinib not only acts on the HER2 receptor, but also has a certain inhibitory effect on EGFR (epidermal growth factor receptor). EGFR is also a protein related to breast cancer, so lapatinib is considered a dual-targeted drug that can act on HER2 and EGFR at the same time to more effectively inhibit tumor growth.

Due to its special mechanism of action, lapatinib is often used to treat patients with HER2 positive breast cancer, especially those who have received other treatments but failed to respond. Lapatinib can be used alone or in combination with other drugs. The specific treatment plan will be formulated by the doctor based on the patient's condition.

In short, lapatinib is a targeted therapy drug that helps control the growth and spread of HER2 positive breast cancer by interfering with the HER2 and EGFR signaling pathways, and improves the survival rate and quality of life of patients. However, patients should use it according to their doctor's advice and monitoring to ensure safe and effective treatment.

Lapatinib is already on the market in China, but it has not yet been included in medical insurance. Patients can purchase it domestically at a price of around 5,000 to 6,000 yuan. Please consult the local hospital pharmacy for specific prices. There are original lapatinib drugs and generic drugs abroad. The original drug is cheaper than the original drug in Türkiye, which costs more than 2,000 yuan. Generic drugs include Indian generic drugs and Bangladeshi generic drugs, and the price is around a few hundred yuan. The ingredients of domestic original drugs, foreign original drugs and generic drugs are basically the same.