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| Formula | C23H28F2N2O4S |
| Molar mass | 466.54 g·mol−1 |
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Suntinorexton (INN ) is an experimental orexin receptor agonist. [1] It acts as a selective agonist of the orexin OX2 receptor and was described in 2019 in a patent by Takeda Pharmaceutical Company. [2]
An international nonproprietary name (INN) is an official generic and nonproprietary name given to a pharmaceutical drug or an active ingredient. INNs are intended to make communication more precise by providing a unique standard name for each active ingredient, to avoid prescribing errors. The INN system has been coordinated by the World Health Organization (WHO) since 1953.
Etoperidone, associated with several brand names, is an atypical antidepressant which was developed in the 1970s and either is no longer marketed or was never marketed. It is a phenylpiperazine related to trazodone and nefazodone in chemical structure and is a serotonin antagonist and reuptake inhibitor (SARI) similarly to them.
The orexin receptor (also referred to as the hypocretin receptor) is a G-protein-coupled receptor that binds the neuropeptide orexin. There are two variants, OX1 and OX2, each encoded by a different gene (HCRTR1, HCRTR2).
Nalfurafine is an antipruritic that is marketed in Japan for the treatment of uremic pruritus in individuals with chronic kidney disease undergoing hemodialysis. It activates the κ-opioid receptor (KOR) and is potent, selective, and centrally active. It was the first selective KOR agonist approved for clinical use. It has also been dubiously referred to as the "first non-narcotic opioid drug" in history.
Arfendazam (INN) is a drug which is a benzodiazepine derivative. Arfendazam is a 1,5-benzodiazepine, with the nitrogen atoms located at positions 1 and 5 of the diazepine ring, and so is most closely related to other 1,5-benzodiazepines such as clobazam.
Orexin receptor type 2 (Ox2R or OX2), also known as hypocretin receptor type 2 (HcrtR2), is a protein that in humans is encoded by the HCRTR2 gene.
Bradanicline is a drug which was being developed by Targacept that acts as a partial agonist at the α7 subtype of the neural nicotinic acetylcholine receptors. It showed cognitive enhancing effects in animal studies, and was being developed through a collaboration between Targacept and AstraZeneca as a potential treatment for schizophrenia and attention deficit disorder. Phase I clinical trials were completed successfully, and it was in phase II trials.
Vedaclidine (INN, codenamed LY-297,802, NNC 11-1053) is an experimental analgesic drug which acts as a mixed agonist–antagonist at muscarinic acetylcholine receptors, being a potent and selective agonist for the M1 and M4 subtypes, yet an antagonist at the M2, M3 and M5 subtypes. It is orally active and an effective analgesic over 3× the potency of morphine, with side effects such as salivation and tremor only occurring at many times the effective analgesic dose. Human trials showed little potential for development of dependence or abuse, and research is continuing into possible clinical application in the treatment of neuropathic pain and cancer pain relief.
Capeserod (INN; development code SL65.0155) is a selective 5-HT4 receptor partial agonist with Ki = 0.6 nM and IA = 40–50% (relative to serotonin). It potently enhances cognition, learning, and memory, and also possesses antidepressant effects. Capeserod was in phase II clinical trials around 2004–2006 for the treatment of memory deficits and dementia but no new information has surfaced since and it appears to have been abandoned.
Cenicriviroc is an experimental drug candidate for the treatment of HIV infection and in combination with Tropifexor for non-alcoholic steatohepatitis. It is being developed by Takeda and Tobira Therapeutics.
Brigatinib, sold under the brand name Alunbrig among others, is a small-molecule targeted cancer therapy being developed by Ariad Pharmaceuticals, Inc. Brigatinib acts as both an anaplastic lymphoma kinase (ALK) and epidermal growth factor receptor (EGFR) inhibitor.
Velusetrag (INN, USAN; previously known as TD-5108) is an experimental drug candidate for the treatment of gastric neuromuscular disorders including gastroparesis, and lower gastrointestinal motility disorders including chronic idiopathic constipation and irritable bowel syndrome. It is a potent, selective, high efficacy 5-HT4 receptor serotonin agonist being developed by Theravance Biopharma and Alfa Wassermann. Velusetrag demonstrates less selectivity for other serotonin receptors, such as 5-HT2 and 5-HT3, to earlier generation 5-HT agonists like cisapride and tegaserod.
Encenicline is a selective partial agonist of the α7 nicotinic receptor. It was in phase III clinical trials for the treatment of cognitive impairment in schizophrenia, but failed to meet the study endpoints in 2016.
Seribantumab is a monoclonal antibody designed for the treatment of cancer. It binds to extracellular domain of HER3 blocking NRG1 binding and thereby preventing the activation of the receptor.
Fosdagrocorat is a nonsteroidal but steroid-like selective glucocorticoid receptor modulator (SGRM) which was under development for the treatment of rheumatoid arthritis but was never marketed. It is the C2 dihydrogen phosphate ester of dagrocorat, and acts as a prodrug of dagrocorat with improved pharmacokinetics. The drug reached phase II clinical trials prior to the discontinuation of its development.
Ulotaront is an investigational antipsychotic that is undergoing clinical trials for the treatment of schizophrenia and Parkinson's disease psychosis. The medication was discovered in collaboration between PsychoGenics Inc. and Sunovion Pharmaceuticals using PsychoGenics' behavior and AI-based phenotypic drug discovery platform, SmartCube. Ulotaront is in Phase III of clinical development.
Vibegron, sold under the brand name Gemtesa, is a medication for the treatment of overactive bladder. Vibegron is a selective beta-3 adrenergic receptor agonist.
Danavorexton is a selective orexin 2 receptor agonist. It is a small-molecule compound and is administered intravenously. The compound was found to dose-dependently produce wakefulness to a similar degree as modafinil in a phase 1 clinical trial. As of March 2021, danavorexton is under development for the treatment of narcolepsy, idiopathic hypersomnia, and sleep apnea. It is related to another orexin receptor agonist, firazorexton (TAK-994), the development of which was discontinued for safety reasons in October 2021.
Firazorexton (INNTooltip International Nonproprietary Name; development code TAK-994) is an experimental orexin 2 (OX2) receptor agonist first described in a 2019 patent filed by Takeda Pharmaceutical Company.
Proposed INN: List 123
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