

Reference
Antibodies
N
Interobserver concordance
Ratcliffe, MJ et al.
Clin Cancer Res 2017
SP263, 28-8, 22C3
200
85% for PD-L1 threshold 50%; 76% for 1%
Cooper, W et al. J
Thorac Oncol 2017
22C3
120
84% for PD-L1 threshold 50%; 72% for 1%
Rehman, JA et al.
Mod Pathol 2017
SP142
35
94%
Rimm, DL et al. JAMA
Oncol 2017
SP142, 28-8, 22C3, E1L3N
90
86%
Four key publications for PD-L1
IHC interobserver comparison in
NSCLC