What is analysed in a programmed death-ligand 1 (PD-L1) test?
The PD-L1 test is performed to evaluate the amount of PD-L1 protein present in cancer cells.
What does the result mean?
The result of the PD-L1 test indicates the amount of PD-L1 protein present in cancer cells. The results are grouped into three categories: negative, low, and high. The category to which the result belongs can help determine the best treatment for cancer.
Why is the analysis done?
The PD-L1 test is performed to evaluate the amount of PD-L1 protein present in cancer cells. The category to which the result belongs can help determine the best treatment for cancer.
When is the analysis done?
The PD-L1 test is performed in patients with advanced non-small cell lung cancer (NSCLC) to determine if the patient is a good candidate for immunotherapy.
What sample is required?
The determination is made from a tissue sample from the tumour.
Is any preparation required?
No special preparation is needed for this test.
How is it used?
The PD-L1 test is used to determine if the patient is a good candidate for immunotherapy. Immunotherapy is a treatment that uses the body’s immune system to fight cancer. If the result of the PD-L1 test is positive, the patient may be a good candidate for immunotherapy.
What are the normal values?
There are no established normal values for the PD-L1 test. The results are grouped into three categories: negative, low, and high.