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ORG-12962

From Wikipedia, the free encyclopedia
Chemical compound
Pharmaceutical compound
ORG-12962
Clinical data
Other namesORG12962
Routes of
administration
Unknown[1]
Drug classSerotonin5-HT2 receptoragonist;Serotonin5-HT2C receptoragonist;Serotonin5-HT2A receptoragonist
ATC code
  • None
Legal status
Legal status
  • In general: uncontrolled
Identifiers
  • 1-(5-trifluoromethyl-6-chloropyridin-2-yl)piperazine
CAS Number
PubChemCID
IUPHAR/BPS
ChemSpider
ChEMBL
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC10H11ClF3N3
Molar mass265.66 g·mol−1
3D model (JSmol)
  • C2CNCCN2c(nc1Cl)ccc1C(F)(F)F
  • InChI=1S/C10H11ClF3N3/c11-9-7(10(12,13)14)1-2-8(16-9)17-5-3-15-4-6-17/h1-2,15H,3-6H2 checkY
  • Key:QZYYPQAYSFBKPW-UHFFFAOYSA-N checkY
 ☒NcheckY (what is this?)  (verify)

ORG-12962 is aserotonin5-HT2 receptoragonist of thepyridinylpiperazine family which was under development for the treatment ofmajor depressive disorder but was never marketed.[1][2]

It acts preferentially as apartial agonist of the serotonin5-HT2C receptor (Ki = 12 nM;EC50Tooltip half-maximal effective concentration = 97.7 nM;EmaxTooltip maximal efficacy = 62%).[3][4][5] However, to a lesser extent, it is also a partial agonist of the serotonin5-HT2A receptor (Ki = 65 nM;EC50 = 417 nM;EmaxTooltip maximal efficacy = 54%) and of the serotonin5-HT2B receptor (EC50 = 525 nM;Emax = 41%).[3][4] In addition, ORG-12962 showsaffinity for otherserotonin receptors, such as the serotonin5-HT1B receptor (Ki = 100 nM) and to a much lesser extent the serotonin5-HT1A receptor (Ki = 2,500 nM).[5]

In addition to depression, it was studied as a potentialanxiolytic, but was discontinued from human trials after tests in a public speaking challenge showed that its anti-anxiety effects were accompanied byside effects such asdizziness and a "spacey" feeling, which were attributed as being possibly due to poorselectivityin vivo over thehallucinogenic serotonin 5-HT2A receptor.[4][6]

ORG-12962 was first described in thescientific literature by 1995.[7][8] It was developed byOrganon.[1][2] The drug reachedphase 2clinical trials fordepression prior to the discontinuation of its development.[1][2]

See also

[edit]

References

[edit]
  1. ^abcd"ORG 12962".AdisInsight. 22 January 2007. Retrieved19 January 2026.
  2. ^abc"Delving into the Latest Updates on Org-12962 with Synapse".Synapse. 17 January 2026. Retrieved19 January 2026.
  3. ^abPorter RH, Benwell KR, Lamb H, Malcolm CS, Allen NH, Revell DF, Adams DR, Sheardown MJ (September 1999)."Functional characterization of agonists at recombinant human 5-HT2A, 5-HT2B and 5-HT2C receptors in CHO-K1 cells".British Journal of Pharmacology.128 (1):13–20.doi:10.1038/sj.bjp.0702751.PMC 1571597.PMID 10498829.
  4. ^abcMonck NJ, Kennett GA (2008). "5-HT2C ligands: recent progress".Progress in Medicinal Chemistry.46:281–390.doi:10.1016/S0079-6468(07)00006-9.ISBN 9780444530189.PMID 18381128.A more selective 5-HT2 agonist, ORG12962 (7) [5] has been assessed in a public-speaking paradigm and was reported to reduce symptoms of anxiety [78]. However, this may have been secondary to the non-specific dizziness and 'spacy' effects induced by the compound [78] possibly due to lack of selectivity over 5-HT2A receptors [5]. [...] Only one other 5-HT2C receptor agonist, ORG12962 (7), has been entered into development for the treatment of anxiety and depression. The development of this compound was halted, presumably due to poor selectivity over 5-HT2A and 5-HT2B receptors [5] which may have caused the side effects described in the panic disorder section (see p. 291) [78].
  5. ^abNilsson BM (July 2006). "5-Hydroxytryptamine 2C (5-HT2C) receptor agonists as potential antiobesity agents".J Med Chem.49 (14):4023–4034.doi:10.1021/jm058240i.PMID 16821762.Organon (a business unit of Akzo Nobel) has developed the arylpiperazine 18 (ORG-12962), a compound that originally was patented as a preferential 5-HT1B receptor agonist having pKi values of 7.0 and 5.6 for 5-HT1B and 5-HT1A receptors, respectively, in receptor binding studies.89 However, it is now known that 18 also behaves as a partial agonist at human 5-HT2C receptors with low binding selectivity relative to human 5-HT2A receptors (Ki ) 12 and 65 nM, respectively).90 In functional in vitro assays measuring calcium release, this compound displays pEC50 values of 7.01, 6.38, and 6.28, along with relative efficacies of 62%, 54%, and 41%, at the human 5-HT2C, 5-HT2A, and 5-HT2B receptors, respectively.28 Although no study details were provided, 18 has been reported to be effective in an acute rat feeding model (minimum effective dose 3 mg/kg, po).9 This compound has also been evaluated in phase II clinical trials for the potential treatment of depression.91
  6. ^Connell, J., Sennef, C., & Deakin, J. F. W. (1999). The effects of ORG 12962, 5-HT2C receptor agonist, in two models of experimentally induced anxiety in healthy female volunteers.International Journal of Neuropsychopharmacology, 2, S136–S137.https://scholar.google.com/scholar?cluster=2357514178179946021
  7. ^Price, Gary W (1995)."Meeting Highlights: 3rd IUPHAR Satellite Meeting on Serotonin July 30 - August 3 1994, Chicago, USA: Serotonin 94".Expert Opinion on Investigational Drugs.4 (1):45–47.doi:10.1517/13543784.4.1.45.ISSN 1354-3784. Retrieved19 January 2026.
  8. ^Kerrigan, Frank (1998)."Antidepressant patents: 1995 - 1997".Expert Opinion on Therapeutic Patents.8 (4):439–460.doi:10.1517/13543776.8.4.439.ISSN 1354-3776. Retrieved19 January 2026.
Tryptamines
No ring subs.
4-Hydroxytryptamines
5-Hydroxytryptamines
5-Methoxytryptamines
Other ring subs.
α-Alkyltryptamines
Others
Cyclized
Bioisosteres
Phenethylamines
Scalines
2C-x
3C-x
DOx
4C-x
Ψ-PEA
MDxx
FLY
25x-NB (NBOMes)
Others
Cyclized
Lysergamides
Others
Natural sources
5-HT1
5-HT1A
5-HT1B
5-HT1D
5-HT1E
5-HT1F
5-HT2
5-HT2A
5-HT2B
5-HT2C
5-HT37
5-HT3
5-HT4
5-HT5A
5-HT6
5-HT7
Phenylpiperazines
Benzylpiperazines
Naphthylpiperazines
Quinolinylpiperazines
Diphenylalkylpiperazines
Pyrimidinylpiperazines
Pyridinylpiperazines
Benzo(iso)thiazolylpiperazines
Tricyclic-linked piperazines
Others/uncategorized
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