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Clinical data
Routes of
By mouth, topical
ATC code
  • None
  • (7S)-1'-[[5-(trifluoromethyl)furan-2-yl]methyl]spiro[6H-furo[2,3-f][1,3]benzodioxole-7,3'-indole]-2'-one
CAS Number
PubChem CID
Chemical and physical data
Molar mass429.351 g·mol−1
3D model (JSmol)
  • C1C2(C3=CC=CC=C3N(C2=O)CC4=CC=C(O4)C(F)(F)F)C5=CC6=C(C=C5O1)OCO6
  • InChI=1S/C22H14F3NO5/c23-22(24,25)19-6-5-12(31-19)9-26-15-4-2-1-3-13(15)21(20(26)27)10-28-16-8-18-17(7-14(16)21)29-11-30-18/h1-8H,9-11H2/t21-/m0/s1

Funapide (INN) (former developmental code names TV-45070 and XEN402) is a novel analgesic under development by Xenon Pharmaceuticals (formerly in partnership with Teva Pharmaceutical Industries) for the treatment of a variety of chronic pain conditions, including osteoarthritis, neuropathic pain, postherpetic neuralgia, and erythromelalgia, as well as dental pain.[1][2][3][4] It acts as a small-molecule Nav1.7 and Nav1.8 voltage-gated sodium channel blocker.[1][2][4] Funapide is being evaluated in humans in both oral and topical formulations, and as of July 2014, has reached phase IIb clinical trials.[1][3]

See also[edit]


  1. ^ a b c Bagal SK, Chapman ML, Marron BE, Prime R, Storer RI, Swain NA (August 2014). "Recent progress in sodium channel modulators for pain". Bioorganic & Medicinal Chemistry Letters. 24 (16): 3690–9. doi:10.1016/j.bmcl.2014.06.038. PMID 25060923.
  2. ^ a b Stephen McMahon; Martin Koltzenburg; Irene Tracey; Dennis C. Turk (2013). Wall & Melzack's Textbook of Pain (6 ed.). Elsevier Health Sciences. p. 508. ISBN 978-0-7020-4059-7. OCLC 1008841684.
  3. ^ a b Xenon Pharma. "TV-45070: A Small Molecule for the Treatment of the Orphan Disease EM and Other Pain Disorders".
  4. ^ a b Xenon Pharma (2012). "Teva and Xenon Announce Teva's World Wide License of Xenon's Pain Drug XEN402". Archived from the original on 2014-07-26. Retrieved 2014-07-20.

External links[edit]