...assessed the efficacy of primary olaparib monotherapy for 10 weeks, followed by chemotherapy, in TNBC...Interestingly, mutations in genes associated with DNA damage repair (ATRX, BRCA1/2, EMSY, MSH6, PARP10, PPM1D) occurred in n = 9/20 olaparib responders, but in none of the 11 non-responders (p = 0.011).