Targeted therapy
What it is and how it works
Targeted therapy acts on particular proteins or other features that help cancer cells grow and spread. Some medicines interrupt a growth signal inside the cell. Others, including certain monoclonal antibodies, bind to targets on the cell surface.
When it is used
In many cancers, a tumour sample is tested for biomarkers, or features that can help guide treatment. A biomarker result is considered alongside the type and stage of cancer. Targeted therapy is sometimes combined with other treatments.
How it is given and monitored
Many small-molecule medicines are taken by mouth, while many antibodies are given through a vein. The team uses appointments, tests and scans when needed to check response. Resistance to the medicine can develop over time.
What to discuss with your care team
Possible side effects depend on the individual medicine. Ask what the biomarker tests showed, how treatment safety will be monitored and which symptoms you should report.
