Info
tumor proportion score
- TPS:
- Based on the proportion of tumor cells that express PD-L1 to the total number of tumor cells (staining and non-staining)
- Only evaluates PD-L1 expression in tumor cells
- CPS:
- Similar to TPS, but includes
- PD-L1 expression in
- tumor-associated lymphocytes and macrophages
- PD-L1 expression in
- ratio of PD-L1 positive tumor cells
- to total tumor cells
- Evaluates PD-L1 expression in both tumor cells and non-tumor cells
- Similar to TPS, but includes