Table 1

HER-2 protein status determined by IHC (n = 303) Polyclonal antibody

TestNo. of cases scored as
02+3+
HercepTest222 (73.3%)39 (12.9%)42 (13.9%)
Polyclonal antibody (DAKO; n = 300)a205 (67.7%)45 (14.9%)50 (16.5%)
NexES223 (73.6%)43 (14.2%)37 (12.2%)
CB-11264 (87.1%)12 (4%)27 (8.9%)
  • a Insufficient material was left to investigate three cases with the polyclonal DAKO antibody.