Targeted therapy targets the changes in cancer cells that help them to grow, divide, and spread. It is a form of precision medicine which provides maximum therapeutic benefit to the patient, with minimal side effects. Most targeted therapies treat cancer by interfering with specific proteins that helps the tumours grow. More details can be obtained through the MacMillan cancer website.
As your cancer specialist, I will assess if your tumour cells (from biopsy) have these specific proteins and if any of these precision medicines are appropriate as a part of your individualised treatment plan.