Biomarker tests may provide information about changes, or mutations, in the cells that became cancer and whether a treatment is available that targets this change.
For some kinds of lung cancer, biomarker testing may be performed to provide information on whether there are changes in the cancer cells that can be targeted with specific drugs.
The Targeted Therapy section of this website discusses biomarker testing and explains:
- The mutations that may allow lung cancer to grow (see "What is a mutation?")
- How testing for these mutations is done, and what targeted therapy drugs are currently available (see "How is biomarker testing performed?”)
- Who should have their tumor tested, and when, since the information can influence treatment choices (see “Who should have their tumor tested and when?”)