In vivo antitumor effects and tolerability of oral SM09419 (QD) alone or combined with cytarabine (Ara-C), venetoclax (VEN), or azacytidine (AZA) were assessed in mice bearing TP53mut flank xenografts (n=5-15/group)....SM09419 (12.5 mg/kg) + VEN induced greater TGI vs. vehicle (96%, p<0.0001) with tumor regression in 80% (4/5) of the mice,...