Gemcitabine monophosphate is a novel HDAC inhibitor with broad-spectrum antitumor activity against solid (IC50: 30 to 300 nM) and hematological malignancies. Gemcitabine monophosphate was found to be a potent inhibitor of HDAC1 and -8 (class I) in vitro.
Uproleselan sodium (GGI-1271) is a small molecule E-selector antagonist originally targeted at AML as an adjuvant to standard chemotherapy for hematological malignancies.
LGB-321 is a potent and selective ATP-competitive small molecule inhibitor of PIM kinases (Pan-PIM kinase inhibitor). LGB321 is unique relative to previously described PIM inhibitors, in that it is active in PIM2 dependent cell lines. , a kinase that has proven difficult to inhibit in the cellular context. Consistent with its activity on all three PIM kinases, LGB321 inhibits proliferation of a number of cell lines derived from diverse hematological malignancies, including MM, AML, CML and B-Cell NHL. In vivo, LGB-321 is orally available, demonstrates efficacy in tumor xenografts and is well-tolerated within the therapeutic exposure range in mice. (source: Clin Cancer Res. 2014 Apr 1;20(7):1834-45 )