Similarly, SGN-CD228A produced a high response rate in TNBC (59% ORR, all models), which improved to 78% ORR in high CD228-expressing models (n = 9) compared with 46% ORR (n = 13) in low-expressing models….Overall, SGN-CD228A is a CD228-directed, investigational ADC that employs innovative technology and has compelling preclinical antitumor activity.