SIM-010603 (Tafetinib) is a structurally novel, oral, multi-targeted receptor tyrosine kinase inhibitor. SIM-010603 inhibited stem cell factor receptor (Kit), vascular endothelial growth factor receptor-2 (VEGFR-2), platelet-derived growth factor receptor-β (PDGFR-β), glial cell line-derived neurotrophic factor receptor (Rearranged during Transfection; RET), and Fms-like tyrosine kinase-3 (FLT3) with IC(50) values between 5.0 and 68.1 nmol/l. SIM010603 inhibited the phosphorylation of PDGFR-β and VEGFR-2. Moreover, SIM-010603 inhibited endothelial cell proliferation, endothelial cells chemotaxis, and corneal angiogenesis. SIM-010603 inhibited tumor growth in these xenograft tumor growth models. SIM010603 reduced tumor MVD in T241-VEGF-A tumor xenograft models and decreased positive signals of CD31, NG2 in MDA-MB-435, and LLC-SW-44 xenograft tumor models. SIM-010603 was in development by Simcere Pharmaceutical Group for the cancer treatment. It was in phase I clinical trials by Simcere, Jilin Boda Pharma and Nanjing Yoko Biological Pharma for the treatment of solid tumours, but this research was discontinued.

DA-6886 is an antagonist of the 5-HT4 receptor, discovered by the Korean Dong-A ST Research Institute. The drug binds with high activity and selectivity to human 5-HT4 receptor splice variants, with mean pKi of 7.1, 7.5 and 7.9 for the human 5-HT4a, 5-HT4b, and 5-HT4d, respectively. DA-886 induced relaxation of the rat esophagus preparation in a 5-HT4 receptor antagonist-sensitive manner. In the normal ICR mice, oral administration of the drug at 0.4 and 2 mg/kg resulted in a marked stimulation of colonic transit. DA-6886 was investigated in phase I clinical trial for the treatment of Irritable Bowel Syndrome.

Lisavanbulin, also known as BAL-101553, a prodrug of the molecule BAL-27862 with potential antitumor activity. BAL-27862 binds to tubulin, prevents tubulin polymerization, destabilizes microtubules, arrests tumor cell proliferation, and induces cell death in cancer cells. Lisavanbulin participated in phase II clinical trials for the treatment of advanced solid tumors. Besides, the drug participates in a 1/2a clinical study in patients with recurrent glioblastoma and in patients with platinum-resistant or refractory ovarian cancer. In this study, will be characterized the safety and tolerability and to obtain efficacy data in these selected cancer types.

Fluorocyclopentenylcytosine (RX-3117) is a novel small molecule nucleoside compound that is incorporated into DNA or RNA of cancer cells and inhibits both DNA and RNA synthesis which induces apoptotic cell death of tumor cells. Fluorocyclopentenylcytosine also mediates the down-regulation of DNA methyltransferase 1 (DNMT1), an enzyme responsible for the methylation of cytosine residues on newly synthesized DNA and also a target for anticancer therapies. Preclinical studies have shown Fluorocyclopentenylcytosine to be effective in both inhibiting the growth of various human cancer xenograft models, including colon, lung, renal and pancreas, as well as overcoming chemotherapeutic drug resistance. Fluorocyclopentenylcytosine has demonstrated a broad spectrum anti-tumor activity against 50 different human cancer cell lines and efficacy in 12 different mouse xenograft models. The efficacy in the mouse xenograft models was superior to that of gemcitabine. In addition, in human cancer cell lines made resistant to the anti-tumor effects of gemcitabine, Fluorocyclopentenylcytosine still retains its full anti-tumor activity. In August 2012, Rexahn reported the completion of an exploratory Phase I clinical trial of Fluorocyclopentenylcytosine in cancer patients conducted in Europe, to investigate the oral bioavailability, safety and tolerability of the compound. In this study, oral administration of Fluorocyclopentenylcytosine demonstrated an oral bioavailability of 34-58% and a plasma half-life (T1/2) of 14 hours. In addition, Fluorocyclopentenylcytosine was safe and well tolerated in all subjects throughout the dose range tested. Fluorocyclopentenylcytosine is in phase I/II clinical trials by Rexahn for the treatment of bladder cancer and pancreatic cancer. This compound was granted Orphan Drug Designation by the U.S. Food and Drug Administration (FDA) for the treatment of patients with pancreatic cancer in September 2014.