Danavorexton Structure.svg
Clinical data
Other namesTAK-925
Routes of
Drug classOrexin receptor agonist
  • methyl (2R,3S)-3-(methanesulfonamido)-2-[(4-phenylcyclohexyl)oxymethyl]piperidine-1-carboxylate
CAS Number
PubChem CID
Chemical and physical data
Molar mass424.56 g·mol−1
3D model (JSmol)
  • COC(=O)N1CCC[C@@H]([C@@H]1COC2CCC(CC2)C3=CC=CC=C3)NS(=O)(=O)C
  • InChI=1S/C21H32N2O5S/c1-27-21(24)23-14-6-9-19(22-29(2,25)26)20(23)15-28-18-12-10-17(11-13-18)16-7-4-3-5-8-16/h3-5,7-8,17-20,22H,6,9-15H2,1-2H3/t17?,18?,19-,20-/m0/s1

Danavorexton (developmental code name TAK-925) is a selective orexin 2 receptor agonist.[1] It is a small-molecule compound and is administered intravenously.[1][2] The compound was found to dose-dependently produce wakefulness to a similar degree as modafinil in a phase 1 clinical trial.[1][3] As of March 2021, danavorexton is under development for the treatment of narcolepsy, idiopathic hypersomnia, and sleep apnea.[2][1][4] It is related to another orexin receptor agonist known as TAK-994, the development of which was discontinued for safety reasons in October 2021.[1][5]

See also


  1. ^ a b c d e f Jacobson LH, Hoyer D, de Lecea L (January 2022). "Hypocretins (orexins): The ultimate translational neuropeptides". J Intern Med. doi:10.1111/joim.13406. PMID 35043499.
  2. ^ a b c "Danavorexton - Takeda". Adis Insight. Springer Nature Switzerland AG. Retrieved 7 March 2021.
  3. ^ Evans, R., Hazel, J., Faessel, H., Wu, J., Hang, Y., Alexander, R., ... & Hartman, D. (2019). Results of a phase 1, 4-period crossover, placebo-controlled, randomized, single dose study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of TAK-925, a novel orexin 2 receptor agonist, in sleep-deprived healthy adults, utilizing modafinil as an active comparator. Sleep Medicine, 64, S106. https://scholar.google.com/scholar?cluster=10933819770107034612
  4. ^ Evans R, Tanaka S, Tanaka S, Touno S, Shimizu K, Sakui S, et al. (December 2019). "A Phase 1 single ascending dose study of a novel orexin 2 receptor agonist, TAK-925, in healthy volunteers (HV) and subjects with narcolepsy type 1 (NT1) to assess safety, tolerability, pharmacokinetics, and pharmacodynamic outcomes". Sleep Medicine. 64: S105–S106. doi:10.1016/j.sleep.2019.11.290.
  5. ^ Tong A (6 October 2021). "Takeda flashes red light on 'breakthrough' narcolepsy drug after PhII trials turned up mysterious safety signal". Endpoints News.