Merotocin

Merotocin
Clinical data
Other namesFE-202767; FE202767; Carba-1-(4-FBzlGly7)dOT; N-(4-Sulfanylbutanoyl)-L-tyrosyl-L-isoleucyl-L-glutaminyl-L-asparaginyl-L-cysteinyl-N-[(4-fluorophenyl)methyl]glycyl-L-leucylglycinamide cyclic (1-5)-thioether
Routes of
administration		Intranasal
Drug classOxytocin receptor agonist
ATC code
  • None
Pharmacokinetic data
Elimination half-life~30 minutes (INTooltip Intranasal administration)
Identifiers
  • (3R,6S,9S,12S,15S)-6-(2-Amino-2-oxoethyl)-N-[2-[[(2S)-1-[(2-amino-2-oxoethyl)amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]-9-(3-amino-3-oxopropyl)-12-[(2S)-butan-2-yl]-N-[(4-fluorophenyl)methyl]-15-[(4-hydroxyphenyl)methyl]-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentazacycloicosane-3-carboxamide
CAS Number
PubChem CID
ChemSpider
UNII
Chemical and physical data
FormulaC48H68FN11O12S
Molar mass1042.20 g·mol−1
3D model (JSmol)
  • CC[C@H](C)[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSCCCC(=O)N[C@H](C(=O)N1)Cc2ccc(cc2)O)C(=O)N(Cc3ccc(cc3)F)CC(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N
  • InChI=1S/C48H68FN11O12S/c1-5-27(4)42-47(71)56-32(16-17-37(50)62)44(68)57-35(21-38(51)63)45(69)58-36(25-73-18-6-7-40(65)54-34(46(70)59-42)20-28-10-14-31(61)15-11-28)48(72)60(23-29-8-12-30(49)13-9-29)24-41(66)55-33(19-26(2)3)43(67)53-22-39(52)64/h8-15,26-27,32-36,42,61H,5-7,16-25H2,1-4H3,(H2,50,62)(H2,51,63)(H2,52,64)(H,53,67)(H,54,65)(H,55,66)(H,56,71)(H,57,68)(H,58,69)(H,59,70)/t27-,32-,33-,34-,35-,36-,42-/m0/s1
  • Key:PVVHQWISMVJHFK-NIFJBHDKSA-N

Merotocin (INN; developmental code FE-202767; also known as carba-1-(4-FBzlGly7)dOT) is a peptidic agonist of the oxytocin receptor that was derived from oxytocin. It is under development by Ferring Pharmaceuticals for the treatment of preterm mothers with lactation failure requiring lactation support, and is in phase II clinical trials for this indication. Merotocin is potent (EC50 < 0.1 nM) and highly selective (>1000-fold over the related vasopressin receptors). Its elimination half-life is approximately 30 minutes via intranasal administration.

See also

References

  1. ↑ "Ferring pharmaceuticals". AdisInsight. 27 January 2023. Retrieved 21 July 2026.
  2. 1 2 Bagger Y, Holmqvist C, Jonker DM, Klein BM, Urban LE (November 2025). "First-in-Human Study of Merotocin, a Short-Acting Peptidic Oxytocin Receptor Agonist for Lactation Support". Clin Pharmacol Drug Dev. 14 (11): 879–888. doi:10.1002/cpdd.1581. PMC 12583980. PMID 40781993.
  3. ↑ Manning M, Misicka A, Olma A, Bankowski K, Stoev S, Chini B, Durroux T, Mouillac B, Corbani M, Guillon G (2012). "Oxytocin and vasopressin agonists and antagonists as research tools and potential therapeutics". Journal of Neuroendocrinology. 24 (4): 609–28. doi:10.1111/j.1365-2826.2012.02303.x. PMC 3490377. PMID 22375852.
  4. ↑ Yang Y, Li H, Ward R, Gao L, Wei JF, Xu TR (2014). "Novel oxytocin receptor agonists and antagonists: a patent review (2002 - 2013)". Expert Opinion on Therapeutic Patents. 24 (1): 29–46. doi:10.1517/13543776.2014.845168. PMID 24094047. S2CID 10584554.
  5. 1 2 Wiśniewski K, Alagarsamy S, Galyean R, Tariga H, Thompson D, Ly B, Wiśniewska H, Qi S, Croston G, Laporte R, Rivière PJ, Schteingart CD (2014). "New, potent, and selective peptidic oxytocin receptor agonists". J. Med. Chem. 57 (12): 5306–17. doi:10.1021/jm500365s. PMID 24874785.