. Author manuscript; available in PMC: 2023 Oct 24.

Published in final edited form as: Clin Cancer Res. 2022 Dec 1;28(23):5088–5097. doi: 10.1158/1078-0432.CCR-22-2164

Table 3.

PD-L1 immunohistochemistry staining intensity and best overall response. Seven of 49 tumors demonstrated PD-L1 staining on tumor cells by immunohistochemistry. SD = stable disease, NR = no response, PR = partial response.

Histology	PD-L1+ tumor cells (%)	Staining intensity (% cells)				Response
		+3	+2	+1	0
Nasopharyngeal carcinoma	100	95	5	0	0	SD
Myofibroblastic tumor	4	2	2	0	96	SD
Hepatoblastoma	3	1	1	1	97	NR
Renal cell carcinoma	97	2	20	75	3	NR
Ewing sarcoma	25	0	0	25	75	NR
Ewing sarcoma	4	0	1	3	96	PR
Alveolar RMS	3	0	2	1	97	NR