Elocalcitol (also known as BXL-628), a vitamin D3 analog. This compound regulates cell proliferation and apoptosis via its binding to the vitamin D receptor (VDR) having anti-proliferative and anti-inflammatory properties in benign prostatic hyperplasia (BPH) treatment. In a phase, IIb trial in patients with BPH, treatment with elocalcitol resulted in a significantly reduced prostate volume compared with placebo; irritative urinary symptoms (frequency, urgency, and nocturia) and urodynamic parameters were comparable to the alpha1-adrenoceptor antagonist tamsulosin. In a phase IIa trial in patients with prostatitis, elocalcitol significantly reduced levels of IL-8 in semen, suggesting improved quality and forward motility of sperm. However, phase IIb trial data from patients with overactive bladder (OAB) were less promising: elocalcitol failed to meet the primary endpoint despite demonstrating good efficacy in a phase IIa trial. Based largely on these disappointing data, BioXell decided to terminate all further clinical development of elocalcitol, including an uncompleted phase IIa trial in patients with male infertility. Recently was shown, that VDR agonists as elocalcitol could be therapeutic tools for skeletal muscle integrity/function maintenance, an indispensable condition for health homeostasis.

Bisphenol A is a small estrogenic monomer that is polymerized to produce polycarbonate plastic and resins used to line metal cans. It is also used to make some dental sealants. Bisphenol A had been considered to be a very weak environmental estrogen. It is able to interact with human estrogen receptors. In addition, it binds strongly to the estrogen-related receptor gamma. Bisphenol A inhibited androgen-induced androgen receptor transcriptional activity. Prenatal exposure to maternal Bisphenol A concentrations were related to higher levels of anxiety, depression, aggression, and hyperactivity in children. Bisphenol A exposure in childhood was associated with higher levels of anxiety, depression, hyperactivity, inattention, and conduct problems. It never found use as a drug.

Lorglumide (CR1409) is the first nonpeptidic, selective and potent inhibitor of the cholecystokinin-A and cholecystokinin-B receptors. Lorglumide prevented dose-dependently the emptying of the gallbladder in both experimental models; proglumide exhibited a comparable activity at much higher doses. Lorglumide was associated with significantly inhibited cell growth of human pancreatic cancer cell line Mia PaCa-2 in vitro. Lorglumide also induced G0/G1 cell cycle arrest and apoptosis. The change of invasion ability appeared to be mediated by MMP-2 expression, which was upregulated by CCK-8S and downregulated by lorglumide. Lorglumide had been in preclinical phase for the treatment of biliary dyskinesia, pancreatitis and cancer. However, this development was discontinued.

Alisertib (MLN8237) is an orally available selective aurora A kinase inhibitor developed by Takeda. Alisertib inhibited AAK over ABK with a selectivity of more than 200-fold in cells and produced a dose-dependent decrease in bipolar and aligned chromosomes in the HCT-116 xenograft model, a phenotype consistent with AAK inhibition. Alisertib inhibited proliferation of human tumor cell lines in vitro and produced tumor growth inhibition in solid tumor xenograft models and regressions in in vivo lymphoma models. It is currently in phase II clinical trials for acute myeloid leukaemia; B cell lymphoma; brain cancer; mesothelioma; prostate cancer; small cell lung cancer.

BMS-754807 is a small-molecule insulin-like growth factor 1 receptor (IGF-1R) antagonist that was being developed by Bristol-Myers Squibb. BMS-754807 is a potent and reversible inhibitor of the insulin-like growth factor 1 receptor/insulin receptor family kinases (Ki, <2 nmol/L). It is currently in phase II development for the treatment of a variety of human cancers. BMS-754807 effectively inhibits the growth of a broad range of human tumor types in vitro, including mesenchymal (Ewing's, rhabdomyosarcoma, neuroblastoma, and liposarcoma), epithelial (breast, lung, pancreatic, colon, gastric), and hematopoietic (multiple myeloma and leukemia) tumor cell lines (IC50, 5-365 nmol/L); the compound caused apoptosis in a human rhabdomyosarcoma cell line, Rh41, as shown by an accumulation of the sub-G1 fraction, as well as by an increase in poly ADP ribose polymerase and Caspase 3 cleavage. BMS-754807 is active in vivo in multiple (epithelial, mesenchymal, and hematopoietic) xenograft tumor models with tumor growth inhibition ranging from 53% to 115% and at a minimum effective dose of as low as 6.25 mg/kg dosed orally daily. Combination studies with BMS-754807 have been done on multiple human tumor cell types and showed in vitro synergies (combination index, <1.0) when combined with cytotoxic, hormonal, and targeted agents. The combination of cetuximab and BMS-754807 in vivo, at multiple dose levels, resulted in improved clinical outcome over single agent treatment. These data show that BMS-754807 is an efficacious, orally active growth factor 1 receptor/insulin receptor family-targeted kinase inhibitor that may act in combination with a wide array of established anticancer agents.

Devazepide (L-364718 or MK-329) is a nonpeptide antagonist for the peripheral (type-A) cholecystokinin (CCK) receptor, which has proved effective in blocking the actions of both exogenous and endogenous CCK in several species. It is an orally active antagonist of CCK-stimulated pancreaticobiliary output in man. Devazepide has been developing for the treatment of anxiety, cancer, neuropathic pain however development discontinued.

JNJ-872 is an inhibitor of influenza virus replication that offers a potential for the treatment of pandemic and seasonal influenza.

Nerispirdine, an acetylcholine release enhancer and a K+/Na+ use-dependent channel blocker, was in clinical development with sanofi-aventis for the treatment of multiple sclerosis. Nerispirdine is not proconvulsant. It can inhibit axonal K(+) channels and this mechanism may underlie the ability of the drug to enhance neuronal conduction. Nerispirdine can also inhibit neuronal Na(+) channels, a mechanism that may explain why nerispirdine lacks proconvulsant activity.

Dazoxiben is a selective inhibitor of thromboxane synthetase (IC50 3 nM), an enzyme that converts the endo-peroxide PGH2 into thromboxane A2, which is a potent vasoconstrictor and platelet aggregating agent. Dazoxiben has demonstrated efficacy in some clinical trial for the treatment of Raynaud's syndrome, an ischaemic condition manifested by the pallor of affected digits. In subsequent studies, however, no significant effect of dazoxiben was found. Dazoxiben was also evaluated in patients with sepsis, adult respiratory distress syndrome, stable angina, and other conditions.