ERBB2 and breast carcinoma: Olaparib (ovarian cancer, breast cancer, pancreatic cancer, prostate cancer Rucaparib (ovarian cancer, prostate cancer) Niraparib (advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer) Talazoparib (BRCA‐mutated HER2‐negative advanced or metastatic breast cancer)