BMS-690514 is a potent, reversible oral inhibitor of epidermal growth factor receptor (EGFR/HER-1), HER-2 and -4, and vascular endothelial growth factor receptors (VEGFRs)-1 to -3 offering targeted inhibition of tumour growth and vascularisation in a single agent. Bristol-Myers Squibb was developing BMS 690514, as an oral treatment for cancer. BMS-690514 had being in phase II for the treatment of breast cancer; non-small cell lung cancer, but later these studies were discontinued.

PF-06273340 is a brain penetrant, orally available and potent tropomyosin-related kinase (Trk) inhibitor. PF-06273340 has a low metabolic turnover in Human liver microsomes and hepatocytes is a good substrate for efflux transporters P-glycoprotein and Breast cancer resistance protein (BCRP) and have moderate passive permeability. PF-06273340 was investigated in Phase I clinical trials for the treatment acute and chronic pain. However clinical development has been discontinued.

HCI-2084 (wider known as TP-0903) is developing by Tolero Pharmaceuticals for the treatment of different cancers. HCI-2084 is a small molecule AXL receptor tyrosine kinase (RTK) inhibitor. AXL is involved in maintaining a mesenchymal phenotype in cancer cells that enhanced cell survival in stressed environments, and increased resistance to targeted therapies compared to epithelial cells. AXL overexpression has been observed in multiple tumor types that have acquired resistance to various agents. TP-0903 is participating in phase I/II clinical trial in patients with previously treated chronic lymphocytic leukemia (CLL). This study will investigate the safety, pharmacokinetics, pharmacodynamics, and clinical activity of TP-0903. Besides, phase I is currently being conducted in patients with advanced solid tumors in the presence of TP-0903. In addition, TP-0903 was investigated in neuroblastoma (NB) cells, where this drug makes NB cells more vulnerable to the conventional chemotherapeutics.

TAK-659 is an investigational, reversible, and potent dual inhibitor of SYK and FLT-3 kinases. TAK-659 inhibited the pro-survival, proliferative, chemoresistant, and activation effects promoted by the microenvironment. Combination of TAK-659 with other BCR inhibitors showed a synergistic effect in inducing apoptosis. Combination of TAK-659 and ibrutinib induced significantly higher cytotoxicity toward CLL cells. TAK-659 suppressed splenomegaly and tumor development in an LMP2A/Myc mouse model in nanomolar concentrations. In addition, TAK-659 also blocked metastasis of tumor cells into bone marrow. A phase Ib/II study of TAK-659 is underway in patients with relapsed or refractory acute myelogenous leukemia

Entospletinib (GS-9973) is an adenosine triphosphate competitive inhibitor of Syk that disrupts kinase activity, which is currently in clinical trials for multiple B-cell malignancies. The most common treatment-emergent serious adverse events included dyspnea, pneumonia, febrile neutropenia, dehydration, and pyrexia.