Clinical data
ATC code none
Legal status
Legal status
  • Uncontrolled
CAS Number 208110-64-9 N
PubChem (CID) 9865384
ChemSpider 8041076 YesY
Chemical and physical data
Formula C20H22ClF2N3O
Molar mass 393.857 g/mol
3D model (Jmol) Interactive image
 NYesY (what is this?)  (verify)

Befiradol (F-13,640; NLX-112) is a very potent and highly selective 5-HT1A receptor full agonist. It has powerful analgesic and antiallodynic effects comparable to those of high doses of opioid painkillers, but with fewer and less prominent side effects, as well as little or no development of tolerance with repeated use.[1][2][3][4][5] A SAR study revealed that replacement of the dihalophenyl moiety by 3-benzothienyl increases maximal efficacy from 84% to 124% (Ki=2.7 nM).[6]

Befiradol was discovered and developed by Pierre Fabre Médicament, a French pharmaceuticals company. In September 2013, befiradol was out-licensed to Neurolixis, a California-based biotechnology company. Neurolixis announced that it intends to re-purpose befiradol for the treatment of Levodopa-induced dyskinesia in Parkinson's disease.[7] In support of this indication, preclinical data was published describing the activity of befiradol in animal models of Parkinson's disease.[8][9]

See also


  1. Bardin L, Tarayre JP, Malfetes N, Koek W, Colpaert FC (April 2003). "Profound, non-opioid analgesia produced by the high-efficacy 5-HT(1A) agonist F 13640 in the formalin model of tonic nociceptive pain". Pharmacology. 67 (4): 182–94. doi:10.1159/000068404. PMID 12595749.
  2. Bruins Slot LA, Koek W, Tarayre JP, Colpaert FC (April 2003). "Tolerance and inverse tolerance to the hyperalgesic and analgesic actions, respectively, of the novel analgesic, F 13640". European Journal of Pharmacology. 466 (3): 271–9. doi:10.1016/S0014-2999(03)01566-8. PMID 12694810.
  3. Bardin L, Assié MB, Pélissou M, Royer-Urios I, Newman-Tancredi A, Ribet JP, Sautel F, Koek W, Colpaert FC (March 2005). "Dual, hyperalgesic, and analgesic effects of the high-efficacy 5-hydroxytryptamine 1A (5-HT1A) agonist F 13640 [(3-chloro-4-fluoro-phenyl)-[4-fluoro-4-{[(5-methyl-pyridin-2-ylmethyl)-amino]-methyl}piperidin-1-yl]methanone, fumaric acid salt]: relationship with 5-HT1A receptor occupancy and kinetic parameters". The Journal of Pharmacology and Experimental Therapeutics. 312 (3): 1034–42. doi:10.1124/jpet.104.077669. PMID 15528450.
  4. Colpaert FC, Deseure K, Stinus L, Adriaensen H (February 2006). "High-efficacy 5-hydroxytryptamine 1A receptor activation counteracts opioid hyperallodynia and affective conditioning". The Journal of Pharmacology and Experimental Therapeutics. 316 (2): 892–9. doi:10.1124/jpet.105.095109. PMID 16254131.
  5. Deseure K, Bréand S, Colpaert FC (July 2007). "Curative-like analgesia in a neuropathic pain model: parametric analysis of the dose and the duration of treatment with a high-efficacy 5-HT(1A) receptor agonist". European Journal of Pharmacology. 568 (1–3): 134–41. doi:10.1016/j.ejphar.2007.04.022. PMID 17512927.
  6. Bollinger S, Hübner H, Heinemann FW, Meyer K, Gmeiner P (October 2010). "Novel pyridylmethylamines as highly selective 5-HT(1A) superagonists". J. Med. Chem. 53 (19): 7167–79. doi:10.1021/jm100835q. PMID 20860381.
  8. Iderberg, H; McCreary, AC; Varney, MA; Kleven, MS; Koek, W; Bardin, L; Depoortère, R (September 2015). "NLX-112, a novel 5-HT1A receptor agonist for the treatment of L-DOPA-induced dyskinesia: Behavioral and neurochemical profile in rat.". Exp Neurol. 271: 335–50. doi:10.1016/j.expneurol.2015.05.021. PMID 26037043.
  9. McCreary, AC; Varney, MA; Newman-Tancredi, A (January 2016). "The novel 5-HT1A receptor agonist, NLX-112 reduces l-DOPA-induced abnormal involuntary movements in rat: A chronic administration study with microdialysis measurements.". Neuropharmacology. 105: 651–60. doi:10.1016/j.neuropharm.2016.01.013. PMID 26777281.
This article is issued from Wikipedia - version of the 6/3/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.