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

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Showing 11 - 20 of 107 results

Status:
Investigational
Source:
INN:adrogolide
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



Adrogolide is a chemically stable prodrug of the dopamine D1 receptor agonist A-86929. Adrogolide is rapidly converted in plasma to A-86929. A-86929 has high affinity and functional selectivity for the dopamine D1 receptor. Adrogolide has been in phase II clinical trials for the treatment of Parkinson's disease and cocaine abuse. However, this research has been discontinued. The adverse events associated with its use of adrogolide were of mild-to-moderate severity and included injection site reaction, asthenia, headache, nausea, vomiting, postural hypotension, vasodilitation, and dizziness.
Status:
Investigational
Source:
NCT01631383: Phase 1 Interventional Completed Cocaine Use
(2012)
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)



Tetrahydropalmatine is a tetrahydroprotoberberine isoquinoline alkaloid that is a primary active constituent of herbal preparations containing plant species of the genera Stephania and Corydalis. The levo isomer of THP (L-THP) appears to contribute to many of the therapeutic effects of these preparations. The pharmacological profile of L-THP, which includes antagonism of dopamine D1 and D2 receptors and actions at dopamine D3, suggests that it may have utility for treating addiction. Clinical trials where L-THP was used for the treatment of cocaine and heroin addiction have promising results. The clinical trial is planned for the treatment of schizophrenia. L-Tetrahydropalmatine is recorded in the Chinese pharmacopoeia.
Status:
Investigational
Source:
NCT02078284: Phase 1 Interventional Completed Thrombocytopenia
(2014)
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



MK-212 is a 5HT2C-receptor agonist. It displays selectivity for 5-HT2C over 5-HT2A (IC50 values are 0.028 and 0.42 uM for human 5-HT2C and 5-HT2A receptors expressed in HEK293 cells respectively). A dose-dependent the effect of 5HT2C-receptor agonist MK-212 on mouse behavior was demonstrated. Intraperitoneal injection of MK-212 in high doses (0.5 and 1.0 mg/kg) increased blood level of corticosterone in mice and reduced their motor activity. In low doses of 0.1 and 0.2 mg/kg, the agonist reduced anxiety, but had no effect on motor activity. It is hypothesized that low doses of MK-212 exhibited anxiolytic activity in mice.
Mavoglurant (AFQ056) was developed as a new metabotropic glutamate receptor 5 (mGluR5) antagonist. The efficacy of mavoglurant in humans has been assessed in L-dopa induced dyskinesia in Parkinson's disease and Fragile X syndrome in proof of principle clinical studies. However, Novartis had announced that the company would be discontinuing its development program in Fragile X following negative results in a large international clinical trial in adults, and more recently in a trial in adolescents. In both placebo-controlled trials, patients taking mavoglurant did not show improvement over placebo in any outcome measures. In patients with L-Dopa-induced dyskinesias studies failed to meet the primary objective of demonstrating improvement of dyskinesia. Mavoglurant was also investigated in phase II clinical trials to reduce chorea in Huntington's disease, but the target result was not achieved. Currently Novartis is conducting a phase II clinical trial to demonstrate whether or not this drug can benificially reduce cocaine use in Cocaine Use Disorder.
Remacemide is a low-affinity noncompetitive NMDA receptor antagonist with sodium channel blocking properties. It has been studied for a number of conditions including acute ischemic stroke, epilepsy, Parkinsons Disease, and Huntington's disease. It was concluded, that was unlikely that remacemide would be further developed as an antiepileptic drug. As for other conditions, there no any information in the literature, why remacemide is no longer being developed for them.
Vanoxerine, also known as GBR-12909, is a piperazine derivative exhibiting potent selective inhibition of sodium-dependent dopamine reuptake transporters. Vanoxerine has been in clinical trials for Parkinsonism, depression and cocaine addiction but lacked efficacy. Vanoxerine has also been observed as a potent blocker of the following channels: cardiac hERG/IKr potassium channel, Calcium channel, voltage-dependent, L type, alpha 1C subunit (also known as Cav1.2) and voltage-gated sodium channel Nav 1.5. Vanoxerine was studied as a potential treatment for atrial fibrillation. However, phase III clinical trials for this condition were terminated because of cardiac safety concerns. Research also indicates that vanoxerine may have additional mechanisms of action including antagonist action at nicotinic acetylcholine receptors (nAChRs).
Status:
Investigational
Source:
NCT00124696: Phase 1 Interventional Completed Cocaine-Related Disorders
(2002)
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)

Cocaethylene is the ethyl ester of benzoylecgonine. Cocaethylene is formed in the liver after concurrent use of cocaine and alcohol. Cocaethylene works by blocking the dopamine transporter on dopaminergic presynaptic nerve terminals in the brain. It increases dopamine synaptic content, provoking enhanced postsynaptic receptor stimulation, resulting in euphoria, reinforcement, and self-administration. Compared to cocaine, which is a methyl ether of benzoylecgonine, cocaethylene has three to five times larger half-life in plasma. Cocaethylene is associated with seizures, liver damage and compromised the functioning of the immune system. It carries an 18-25 fold increase in risk for immediate death compared to cocaine alone.
Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Showing 11 - 20 of 107 results