U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 271 - 280 of 4710 results

m-Chlorophenylpiperazine (meta-chlorophenylpiperazine or mCPP) is a psychoactive substance, which is illegal in many countries but can be found on the black market. It induces endocrine, neurological and psychiatric effects. mCPP is a partial agonist at the 5-HT2C receptor but antagonized the 5-HT2B and 5-HT3 receptors. mCPP is also an active metabolite of the drug trazodone, which is used as an effective antidepressant drug with a broad therapeutic spectrum, including anxiolytic efficacy. It is known, that mCPP induces migraine attacks and that the decrease of food intake induced by the mCPP depends on its ability to act as a serotonin agonist is a brain.
Status:
Investigational
Source:
INN:preclamol [INN]
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



(-)-3-(3-hydroxyphenyl)-N-n-propylpiperidine ((-)-3-PPP, also known as preclamol) has a dual action towards to dopamine D2 autoreceptor: it activates it and also acts concomitantly as an antagonist at postsynaptic DA receptors. It was shown, that (-)-3PPP/preclamol was a safe drug for study in the treatment of schizophrenia and may have antipsychotic efficacy. Besides, the motor effects of the drug were evaluated in nine patients with Parkinson's disease using a double-blind, placebo-controlled design. However, the small number of patients manifesting a clinically significant response and the frequently inconsistent effects could indicate that this class of agents may have relatively limited clinical utility.
Status:
Investigational
Source:
INN:diprenorphine
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)

As a narcotic antagonist similar in action to naloxone, DIPRENORPHINE is used to remobilize animals after analgesia by super-potent opioid analgesics such as etorphine and carfentanil. It is not used in humans. Diprenorphine binds approximately equally to the three subtypes of opioid receptors (mu, delta, and kappa) and antagonizes them. This compound belongs to the class of organic compounds known as phenanthrenes and derivatives. These are polycyclic compounds containing a phenanthrene moiety, which is a tricyclic aromatic compound with three non-linearly fused benzene. The therapeutic efficacy of many other compounds can be decreased when used in combination with Diprenorphine (54 compounds mentioned on www.drugbank.ca).
Status:
Investigational
Source:
NCT00116610: Phase 2 Interventional Completed Small Cell Lung Cancer
(2005)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Picoplatin is a sterically hindered platinum (II) complex with antineoplastic properties developed for the treatment of cis-platin-resistant cancer. Picoplatin alkylates DNA, forming both inter- and intra-strand cross-linkages, resulting in inhibition of DNA replication and transcription, and the induction of apoptosis. However, in Phase III trials, picoplatin failed to meet its primary endpoint for advanced cell lung cancer. It remains in development for other cancers.
Status:
Investigational
Source:
NCT00664378: Phase 2 Interventional Terminated Relapsed and Refractory Multiple Myeloma
(2008)
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



CYT997 (Lexibulin) is a wholly synthetic compound that possesses highly potent cytotoxic activity in vitro through inhibition of microtubule polymerization. CYT997 (Lexibulin) is a potent microtubule polymerization inhibitor with IC50 of 10-100 nM in cancer cell lines. CYT997 (Lexibulin) blocks the cell cycle at the G(2)-M boundary, and Western blot analysis indicates an increase in phosphorylated Bcl-2, along with increased expression of cyclin B1. Caspase-3 activation is also observed in cells treated with CYT997 (Lexibulin) along with the generation of poly(ADP-ribose) polymerase. The compound possesses favorable pharmacokinetic properties, is orally bioavailable, and is efficacious per os in a range of in vivo cancer models, including some refractory to paclitaxel treatment. CYT997 (Lexibulin) exhibits vascular disrupting activity as measured in vitro by effects on the permeability of human umbilical vein endothelial cell monolayers, and in vivo by effects on tumor blood flow. CYT997 (Lexibulin) possesses a useful combination of pharmacologic and pharmacokinetic properties having considerable potential as a novel anticancer agent. Lexibulin was being developed by YM BioSciences as a vascular-disrupting agent (VDA) for the potential treatment of cancer, it was in phase II development on YM BioSciences ' pipeline. It appears that the development of lexibulin has been discontinued.
Status:
Investigational
Source:
NCT02223481: Phase 2 Interventional Completed Hypertension, Pulmonary
(1998)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)

Terbogrel, an agent having two pharmacodynamic actions, namely inhibition of thromboxane A2 synthase and antagonism of the thromboxane A2 receptor. The antithrombotic effect of terbogrel was dose-dependent and was associated with enhanced prostacyclin production. The drug was studied for the treatment of peripheral vascular disorders, pulmonary hypertension, and thrombosis. Terbogrel participated in phase II clinical trial to investigate its safety and efficacy in patients with primary pulmonary hypertension, however, this study was discontinued due to terbogrel’s induction of leg pain.
Status:
Investigational
Source:
USAN:Aminoxytropine Tropate Hydrochloride
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)



Atropine-N-oxide hydrochloride is an alkaloid of the belladonna plants. It is the major metabolite of atropine. It is a competitive nonselective antagonist at central and peripheral muscarinic acetylcholine receptors.
Status:
Investigational
Source:
NCT04575038: Phase 2 Interventional Completed COVID-19 Infection
(2020)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Brequinar is a synthetic quinolinecarboxylic acid analogue with antineoplastic properties. Brequinar inhibits the enzyme dihydroorotate dehydrogenase, thereby blocking de novo pyrimidine biosynthesis. This agent may also enhance the in vivo antitumor effect of antineoplastic agents such as 5-FU. Brequinar had been in phase II clinical trials by Bristol-Myers Squibb for the treatment of cancer and transplant rejection. However, this research has been discontinued. Brequinar had been also in preclinical studys for the treatment of cytomegalovirus infections. However, this research has been discontinued.
Status:
Investigational
Source:
INN:mepiprazole
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)

Mepiprazole is a psychotropic pyrazole derivative. Mepiprazole is a serotonin reuptake inhibitor and adrenolytic. In clinical studies, it demonstrated anxiolytic properties.
Status:
Investigational
Source:
INN:relcovaptan
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



Relcovaptan is a potent, orally active nonpeptide vasopressin V1a antagonist that was undergoing clinical development with Sanofi-Synthélabo (formerly Sanofi) in France. SR49059 is specifically and selectively antagonizes the effect of vasopressin on the V1a receptor in animals’ and in humans. The drug has been shown to have an excellent safety profile in single and repeated dose toxicological studies in animals. In the human uterus in vitro, SR49059 caused a dose-dependent inhibition of vasopressin V1a receptor-mediated activity of myometrial strips and isolated uterine arteries. In vivo in nonpregnant women, an inhibition of vasopressin-induced uterine activity has been observed.