Voruciclib (also known as P1446A-05) is a flavone-based, potent and selective CDK 4/6 inhibitor with activity in multiple BRAF-mutant and wild type cell lines. It is currently in clinical trials in combination with BRAF inhibitor (PLX4032) to treat advanced BRAF-mutant melanoma. Voruciclib has significant inhibitory activity against cutaneous and uveal melanoma. Mechanistic studies revealed that P1446A-05 inhibits phosphorylation targets of CDK members, and induces cell cycle arrest and apoptosis irrespective of melanoma genotype or phenotype. Voruciclib Hydrochloride is in phase I clinical trials by Piramal Life Sciences for the treatment of chronic lymphocytic leukaemia and malignant melanoma.

VLX600 - is a lipophilic cation-based triazinoindolyl-hydrazone compound and mitochondrial oxidative phosphorylation (OxPhos) inhibitor, with potential antineoplastic activity. VLX600 is designed to increase the efficacy of radiotherapy and to kill cancer cells that survive traditional chemotherapy. VLX 600 is a small molecule that inhibits deubiquitinating enzymes USP14 (a ubiquitin thiolesterase) and UCHL5 (a carboxypeptidase). Upon infusion, in normal cells and proliferating tumor cells where glucose is readily available, inhibition of OxPhos by VLX600 induces a hypoxia-inducible factor 1-alpha (HIF-1alpha)-dependent shift to, and an increase in glycolysis. Glycolysis alone does not produce enough energy to support the growth of tumor cells in this environment, and the induction of autophagy occurs. In the metabolically compromised tumor microenvironment, the availability of oxygen and glucose is limited due to poor vascularization and perfusion of tumor micro-areas. Tumor cells growing in this environment are thus unable to compensate for decreased mitochondrial function by increasing glycolysis. This leads to nutrient depletion, decreased energy production, induction of autophagy, tumor cell death and an inhibition of cell proliferation in quiescent tumor cells. Mitochondrial OxPhos, which is hyperactivated in cancer cells, plays a key role in the promotion of cancer cell proliferation. VLX-600 is in phase I clinical trials for the treatment of solid tumours. This compound was originally jointly discovered and developed by Vivolux and Karolinska Institute.

GSK 1059615, a pyridinylquinoline derivative, is a novel PI3K kinase and mTOR dual inhibitor. GSK1059615 was in phase I clinical trial in patients with solid tumors or lymphoma, but this study was terminated prematurely due to lack of sufficient exposure following single- and repeat dosing. In addition, recently was shown, that GSK 1059615 in xenograft mice models possessed anti-head and neck squamous cell carcinoma (HNSCC) cell activity.

BMS-906024 is a lead candidate of a series of inhibitors of gamma secretase-mediated Notch signalling. BMS-906024 is an orally bioavailable, small-molecule gamma secretase (GS) and pan-Notch inhibitor, with potential antineoplastic activity. Upon administration, GS/pan-Notch inhibitor BMS-906024 binds to GS and blocks activation of Notch receptors, which may inhibit the proliferation of tumor cells with an overly-active Notch pathway. The integral membrane protein GS is a multi-subunit protease complex that cleaves single-pass transmembrane proteins, such as Notch receptors, at residues within their transmembrane domains that lead to their activation. Overexpression of the Notch signaling pathway has been correlated with increased tumor cell growth. BMS-906024 is currently in Phase 1 clinical trials for patients with T-cell acute lymphoblastic leukemia and metastatic solid tumors, including lung cancer.

LY2608204 is a activator of glucokinase (GK) with EC50 of 42 nM. Eli Lilly is developing LY 2608204 as an orally administered, once-daily therapy for type 2 diabetes. LY-2608204 is in phase I clinical trials for the treatment of type 2 diabetes.

CEP-37440 is a potent ATP-competitive, highly kinase selective, and orally active inhibitor of FAK1 and anaplastic lymphoma kinase (ALK). In addition to a favorable metabolic stability and pharmacokinetic profile preclinically, CEP-37440 is also a brain penetrant. CEP-37440 was able to inhibit the proliferation of certain IBC cells by decreasing the levels of phospho-FAK1 (Tyr 397); none of the cells expressed ALK. Studies using IBC xenograft models showed that CEP-37440 also effectively reduces the growth of the primary tumor xenografts and inhibits the development of brain metastases in mice.

AstraZeneca and BIND Therapeutics (formerly BIND Biosciences) are collaborating to develop AZD-1152HQPA (AZD2811) for the treatment of cancer. AZD2811, a novel, selective inhibitor of Aurora B kinase that has been shown to be active in both solid and hematological tumors in preclinical models, is the second Accurin candidate to enter clinical development. AZD1152-HQPA is a highly selective Aurora B inhibitor with IC50 of 0.37 nM in a cell-free assay. AZD1152-HQPA inhibited the proliferation of AML lines (HL-60, NB4, MOLM13), ALL line (PALL-2), biphenotypic leukemia (MV4-11), acute eosinophilic leukemia (EOL-1), and the blast crisis of chronic myeloid leukemia K562 cells with an IC50 ranging from 3 nM to 40 nM. The phase 1 trial is enrolling patients with advanced solid tumors, including patients with small cell lung cancer, and is being conducted by AstraZeneca under the companies’ 2013 collaboration agreement with BIND managing all chemistry, manufacturing and control activities.

AZD-8330 is a potent, selective, orally active MEK inhibitor that blocks signal transduction pathways implicated in cancer cell proliferation and survival. AZD-8330 has shown tumor suppressive activity in multiple preclinical models of human cancer including melanoma, pancreatic, colon, lung, and breast cancers. AZD-8330 specifically inhibits mitogen-activated protein kinase kinase 1 (MEK or MAP/ERK kinase1), resulting in inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers. AZD-8330 had been in phase I clinical trials by AstraZeneca for the treatment of malignancies. However, this research has been discontinued.

AZD-7687 is a potent inhibitor of Diacylglycerol O-acyltransferase 1 (DGAT1) which was developed by AstraZeneca for the treatment obesity and type 2 diabetes mellitus. AZD-7687 reached phase I of clinical trials, but was discontinued by unknown reasons.

Amgen was developing AMG-208, a small molecule inhibitor of c-Met, for the treatment of cancer. AMG-208 shows the potent inhibition of kinase c-Met activity with IC50 of 9 nM in a cell-free assay. Besides, AMG-208 treatment also leads to the inhibition of HGF-mediated c-Met phosphorylation in PC3 cells with IC50 of 46 nM. AMG-208 showed evidence of antitumor activity, particularly in prostate cancer. On December 1, 2014 Amgen completed a phase I trial in solid tumours.