...low dose Olaparib altered the growth of both the ERG and ETV1 overexpressing primary human prostate cancer xenografts [MDA-PCa-133: p = 0.05 (day 8) and p < 0.01 (day 12, 16, 20, 24, 28 and 32); MDA-PCa-2b–T: p < 0.01 (day 8, 12 and 16)], but had no effect on the ETS-negative primary human xenograft model...