A PD-L1 test uses a sample of cancerous tumor tissue to measure how much of a protein called PD-L1 is found on the cancer cells. If you have certain types of cancer, PD-L1 testing can …

4 days ago · How do I determine the appropriate programmed death-ligand 1 (PD-L1) test to order? Selection of the appropriate test depends on the patient’s malignancy and the intended …

This Test Guide provides an overview of the use of tests for PD-L1 and other biomarkers involved in selection of PD-1/PD-L1 inhibitor therapy.

What does it mean to have PD-L1 positive What does it mean to have PD-L1 positive (PD-L1+) Lung Cancer?

Overexpression of PD-L1 has been observed in many carcinomas including lung, urinary bladder, and gastroesphageal junction.

Health care professionals may find information about PD-L1 testing, and how to evaluate PD-L1 expression based on combined positive score (CPS) and tumor proportion score (TPS).

Here we report the findings for PD-L1 testing, first-line treatment patterns, and clinical outcomes after first-line therapy initiation for patients with metastatic NSCLC at an academic medical …

Dec 9, 2025 · A PD-L1 test is reported as a percentage, measuring how much cells in a tumor “express” PD-L1. Tumors that express high amounts of PD-L1 (50% or greater) may respond …

Jul 26, 2025 · The PD-L1 IHC test serves as an important tool in cancer care, providing insights into a tumor’s characteristics. This test helps medical professionals understand how a tumor …

Aug 6, 2020 · A number of anti-PD-1/PD-L1 therapies are available for different cancer indications. This resource aims to provide an overview of the benefits and limitations of …