Ozolinone, an active metabolite of diuretic etozoline was studied also as a loop diuretic. Experiments on dogs have shown that ozolinone, induced stereoselective and prostaglandin-dependent renin secretion, which was involved in the regulation of intra-renal hemodynamics. Information about the current use of this drug is not available.

Naprodoxime is an antidepressant, antiaggressive agent.

Sitravatinib (MGCD516) is a receptor tyrosine kinases (RTK) inhibitor that blocks a wide array of RTKs known to be amplified/overexpressed in sarcomas, which are key regulators of signaling pathways that lead to cell growth, survival and tumor progression. It is involved in driving sarcoma cell growth with IC50 of 3980 nM and is superior to other multi-kinase inhibitors in inhibiting cell proliferation, RTK phosphorylation, and phosphorylation of downstream effectors. The efficacy of sitravatinib was tested using a wide panel of sarcoma cell lines, including malignant peripheral nerve sheath tumor (MPNST), Ewing sarcoma (A673), osteosarcoma (Saos2), and liposarcoma (DDLS, LS141). Both in vitro and in vivo efficacy sitravatinib was significantly better that the other two multi-kinase inhibitors, imatinib and crizotinib. Sitravatinib treatment not only inhibits tumor cell proliferation at low nanomolar concentrations in vitro but also results significant tumor growth suppression in vivo in mouse xenograft models. Sitravatinib is being evaluated in a Phase 1b dose expansion cohort in selected patients with specific genetic alterations that are drivers of tumor growth, with an initial focus on Non-Small-Cell Lung carcinoma (NSCLC) and in other solid tumors where sitravatinib may confer a benefit. Its efficacy and safety is also being tested in Phase II clinical trials in patients with advanced liposarcoma as a monotherapy and NSCLC in combination with nivolumab.

Ritanserin (INN, USAN, BAN) is a serotonin receptor antagonist which was never marketed for clinical use but has been used in scientific research. In humans, ritanserin increases deep slow-wave sleep, improved liveliness in a variety of psychiatric disorders and facilitated participation in behaviour therapy. During clinical trials, unexpected observations indicated that ritanserin may be of value in treating obsessive-compulsive disorder, acute mania, negative symptoms of schizophrenia, drug addicts, etc. Clinical observations confirmed the efficacy of ritanserin in the chronic withdrawal phase after detoxification from ethanol. Ritanserin had been in phase III clinical trials by Janssen L.P. for the treatment of anxiety disorder and major depressive disorder. However, the clinical development of ritanserin was discontinued.

LEVOFENFLURAMINE is a levorotatory enantiomer of fenfluramine, a substituted amphetamine which was formerly used to treat obesity. LEVOFENFLURAMINE has dopamine-antagonistic properties and, at high doses, increases dopamine concentrations in rat striatal dialysates. It is essentially inactive to reduce food intake in human subjects.

Cilengitide is a cyclized Arg-Gly-Glu (RGD)-containing pentapeptide that selectively blocks activation of the αvβ3 and αvβ5 integrins. Its precursor was first synthesized in 1995 as c(RGDfV), and later modified by the incorporation of N-methyl Val c(RGDfMetV), generating the current form of the drug. Cilengitide displays subnanomolar antagonistic activity for αvβ3 and αvβ5, and is the first integrin antagonist evaluated in clinical phase I and II trials for treatment of glioblastoma and several other tumor types. Cilengitide-induced glioma cell death and inhibition of blood vessel formation may use different molecular mechanisms, including regulation of tumor hypoxia and activation of apoptotic pathways. Cilengitide inhibits cell signaling through FAK-Src-Akt and Erk mediated pathways in endothelial and tumor cells and attenuates the effect of VEGF stimulation on growth factor signaling. Cilengitide has shown encouraging activity in patients with glioblastoma as single agent, and in association with standard RT and temozolomide.

Cilengitide is a cyclized Arg-Gly-Glu (RGD)-containing pentapeptide that selectively blocks activation of the αvβ3 and αvβ5 integrins. Its precursor was first synthesized in 1995 as c(RGDfV), and later modified by the incorporation of N-methyl Val c(RGDfMetV), generating the current form of the drug. Cilengitide displays subnanomolar antagonistic activity for αvβ3 and αvβ5, and is the first integrin antagonist evaluated in clinical phase I and II trials for treatment of glioblastoma and several other tumor types. Cilengitide-induced glioma cell death and inhibition of blood vessel formation may use different molecular mechanisms, including regulation of tumor hypoxia and activation of apoptotic pathways. Cilengitide inhibits cell signaling through FAK-Src-Akt and Erk mediated pathways in endothelial and tumor cells and attenuates the effect of VEGF stimulation on growth factor signaling. Cilengitide has shown encouraging activity in patients with glioblastoma as single agent, and in association with standard RT and temozolomide.

Levomoprolol (L-moprolol) is a beta-adrenergic blocker which was introduced as an oral medication for treatment of systemic hypertension. It was found to be effective in 2% eyedrops in reducing the intraocular pressure in glaucoma. Observations on glaucoma patients treated with the eyedrop for 1.5 to 2.5 years was without undesirable side effects. L-moprolol and dipivefrin had an equivalent effect in lowering the intraocular pressure. The association of the two drugs caused a further reduction of intraocular pressure.