What are targeted drugs?

Targeted therapy is a treatment approach that specifically targets the unique biological characteristics of cancer cells. The detailed analysis is as follows:

Targeted drugs work by interfering with key signaling pathways or molecular targets involved in the growth, proliferation, and spread of tumor cells, thereby inhibiting or killing cancer cells. Compared to traditional treatments such as chemotherapy and radiotherapy, targeted therapy offers higher treatment efficacy and fewer side effects. Traditional chemotherapy and radiotherapy treat cancer by killing rapidly dividing cells, but these approaches also damage healthy cells to some extent, leading to various side effects. In contrast, targeted drugs act more precisely on specific targets present in cancer cells, minimizing harm to healthy tissues. The development of targeted drugs relies on in-depth research into the mechanisms underlying cancer initiation, progression, and metastasis. Cancer cells differ from normal cells in certain critical signaling pathways or molecules, and these differences serve as the targets for targeted therapies. For example, tumor cells in patients with HER2-positive breast cancer overexpress the HER2 receptor. By using targeted drugs directed against the HER2 receptor, tumor cell growth can be effectively suppressed.

Targeted therapy represents a major advancement in cancer treatment, not only improving therapeutic outcomes and reducing side effects but also enabling more personalized treatment plans for cancer patients. If you have related questions, it is recommended to consult a qualified physician for professional advice.