It indicated that the inhibition of PARP by PARPi can effectively cause cell death via “synthetic lethality,” especially for BRCA-mutated tumor cell because of BRCA gene’s (33) and PARP’s (8, 34, 35) having much to do with DNA repair, which can explain BRCA-mutated women’s better prognosis. Here, PARP1 is linked to neoplasm.