279 pts were enrolled and received olaparib maintenance (tablets; 300 mg bid)....12% of pts (34/279) had a non-BRCA HRRm (8 RAD51C; 7 BRIP1; 7 RAD51D; 3 CDK12; 2 FANCL; 2 PALB2; 1 ATM; 1 BARD1; 1 RAD51B; 1 CHEK2 and RAD51D; 1 PPP2R2A and RAD51C).....Pts with a non-BRCA HRRm achieved longer PFS benefit compared with the non HRRm subgroup.