BM-1074 is a potent and highly efficacious inhibitor of Bcl-2/Bcl-xL, with a Ki value of < 1nM [1].

BM-1074 is a selective Bcl-2 and Bcl-xL inhibitor. It shows high binding affinity to both Bcl-2 and Bcl-xL. In H146 cell line, BM-1074 inhibits the cell growth with IC50 value of 1.3nM. It is found that 15 mg/kg dosed intravenously is the maximum tolerated dose (MTD) of BM-1074[1].

BM-1074 at MTD induces cleavage of PARP and caspase-3 in H146 xenograft tumors in SCID mice, indicating a strong apoptosis induction in vivo. BM-1074 also shows rapid, complete and persistent antitumor efficacy in the H-146 xenograft model. Moreover, mice treated with BM-1074 shows no significant weight loss or other toxicity signs. In addition, BM-1074 inhibits cell growth in three other small-cell lung cancer cell lines, including H1963, H187 and H1417, with IC50 values of 1nM, 1.4nM and 2.3nM, respectively [1