PD-L1 tests offered at Quest Diagnostics
Programmed death ligand (PD-L1) is also called an Immune check point inhibitor.
It is present in multiple tumor types. PD-L1 is expressed on activated T-cells and binding of PD-1 by its ligand PD-1 inhibits T-cell mediated cytotoxicity. Some cancer cells express PD-L1 on their surface thus suppressing T-cell mediated attack on cancer cells. Immunotherapy employing monoclonal antibodies that block PD-1 or PD-L1 have shown significant antitumor effects in many cancers including non-small cell lung carcinoma.
Tumoral PD-L1 expression is seen in multiple tumor types including NSCLC, Melanoma, Urothelial carcinoma.
The different PD-L1 tests offered at Quest appear below.
Contact your Quest Diagnostics sales representative, call 1.866.MY.QUEST (1.866.697.8378) or visit QuestDiagnostics.com.
The CPT codes provided are based on American Medical Association guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.