Patients with ATMmASXL1m (n = 3) had a 33% overall response rate (1 partial response, 2 stable disease, range of progression-free survival (PFS), 23-113 weeks)...In this exploratory analysis, patients with co-occurring ATMm and ASXL1m showed higher tumor response. This signals potential value from ATM and ASXL1 co-mutation predicting efficacy of Venadaparib in PC...