Nepicastat

In today's article we are going to talk about Nepicastat, a topic that has aroused great interest in recent times. Nepicastat is something that affects many people in different areas of life, whether at work, family, health or other fundamental aspects. We will discover the importance of Nepicastat, as well as its implications and possible solutions. This article aims to shed light on Nepicastat and offer relevant information to help better understand this topic. In addition, we will explore different perspectives and opinions of experts on the subject, in order to provide a global and balanced vision. Read on to find out everything you need to know about Nepicastat!

Nepicastat
Clinical data
Other namesSYN-117; SYN117; RS-25560-197
Drug classDopamine β-hydroxylase inhibitor
Identifiers
  • 5-(Aminomethyl)-1--1,3-dihydro-2H-imidazole-2-thione
CAS Number
PubChem CID
IUPHAR/BPS
ChemSpider
UNII
ChEBI
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC14H15F2N3S
Molar mass295.35 g·mol−1
3D model (JSmol)
  • Fc1cc3c(c(F)c1)CC(N2/C(=C\NC2=S)CN)C3
  • InChI=1S/C14H15F2N3S/c15-9-3-8-4-10(1-2-12(8)13(16)5-9)19-11(6-17)7-18-14(19)20/h3,5,7,10H,1-2,4,6,17H2,(H,18,20)/t10-/m0/s1 checkY
  • Key:YZZVIKDAOTXDEB-JTQLQIEISA-N checkY
  (verify)

Nepicastat (INNTooltip International Nonproprietary Name; developmental code names SYN117, RS-25560-197) is an inhibitor of dopamine β-hydroxylase (DBH), an enzyme that catalyzes the conversion of dopamine to norepinephrine.[1][2]

It has been studied as a possible treatment for congestive heart failure, and appears to be well tolerated as such.[3] As of 2012, clinical trials to assess nepicastat as a treatment for post-traumatic stress disorder (PTSD) and cocaine dependence have been completed.[4][5] In Phase 2 study treatment with nepicastat was not effective in relieving PTSD-associated symptoms when compared to placebo. The study was funded by the U.S. Department of Defense.[6] As of October 2024, development has been discontinued for most indications.[1]

Mice lacking epinephrine exhibit reduced contextual memory after fear conditioning .[7] In addition, in PTSD epinephrine enhances traumatic contextual memory.[8] Studies indicate that nepicastat effectively reduces norepinephrine in both peripheral and central tissues in rats[9] [10] and dogs.[11] Nepicastat also upregulates the transcription Npas4 and Bdnf genes in the mice hippocampus potentially contributing to neuronal regulation and the attenuation of traumatic contextual memories [12][13] No DBH inhibitor has received marketing approval due to poor DBH selectivity, low potency and side effects, however DBH gene silencing may be an alternative for patients with heightened sympathetic activity.[14] Some studies, however have shown that nepicastat is well-tolerated in healthy adults and no significant differences in adverse events were observed.[15] Given that nepicastat treatment has been proven to be effective in reducing signs in an PTSD mouse model with increased catecholamine levels, [16] it could be a promising treatment option for humans with PTSD characterized by increased catecholamine plasma levels.[17]

See also

References

  1. ^ a b "Nepicastat oral- Asieris Pharmaceuticals". AdisInsight. 7 October 2024. Retrieved 21 October 2024.
  2. ^ Stanley WC, Li B, Bonhaus DW, Johnson LG, Lee K, Porter S, et al. (August 1997). "Catecholamine modulatory effects of nepicastat (RS-25560-197), a novel, potent and selective inhibitor of dopamine-beta-hydroxylase". British Journal of Pharmacology. 121 (8): 1803–1809. doi:10.1038/sj.bjp.0701315. PMC 1564872. PMID 9283721.
  3. ^ Hegde SS, Friday KF (December 1998). "Dopamine-beta-hydroxylase inhibition: a novel sympatho-modulatory approach for the treatment of congestive heart failure". Current Pharmaceutical Design. 4 (6): 469–479. doi:10.2174/138161280406221011113124. PMID 10197057.
  4. ^ "Pharmacogenetic Clinical Trial of Nepicastat for Post Traumatic Stress Disorder (PTSD)". ClinicalTrials.gov. U.S. National Institutes of Health. June 4, 2008. Retrieved on February 1, 2012.
  5. ^ "Study of Safety and Potential Efficacy of SYN117 in Cocaine Dependent Volunteers". ClinicalTrials.gov. U.S. National Institutes of Health. August 15, 2008. Retrieved on February 1, 2012.
  6. ^ Biotie reports top-line data from clinical study with nepicastat (SYN117) in post-traumatic stress disorder BIOTIE THERAPIES CORP. STOCK EXCHANGE RELEASE 27 December 2012.
  7. ^ Alves E, Lukoyanov N, Serrão P, Moura D, Moreira-Rodrigues M (June 2016). "Epinephrine increases contextual learning through activation of peripheral β2-adrenoceptors". Psychopharmacology. 233 (11): 2099–2108. doi:10.1007/s00213-016-4254-5. PMID 26935825.
  8. ^ Martinho R, Oliveira A, Correia G, Marques M, Seixas R, Serrão P, et al. (2020-10-26). "Epinephrine May Contribute to the Persistence of Traumatic Memories in a Post-traumatic Stress Disorder Animal Model". Frontiers in Molecular Neuroscience. 13: 588802. doi:10.3389/fnmol.2020.588802. PMC 7649334. PMID 33192300.
  9. ^ Bonifácio MJ, Sousa F, Neves M, Palma N, Igreja B, Pires NM, et al. (March 2015). "Characterization of the interaction of the novel antihypertensive etamicastat with human dopamine-β-hydroxylase: comparison with nepicastat". European Journal of Pharmacology. 751: 50–58. doi:10.1016/j.ejphar.2015.01.034. PMID 25641750.
  10. ^ Loureiro AI, Bonifácio MJ, Fernandes-Lopes C, Pires N, Igreja B, Wright LC, et al. (2015-09-02). "Role of P-glycoprotein and permeability upon the brain distribution and pharmacodynamics of etamicastat: a comparison with nepicastat". Xenobiotica; the Fate of Foreign Compounds in Biological Systems. 45 (9): 828–839. doi:10.3109/00498254.2015.1018985. PMID 25915108.
  11. ^ Stanley WC, Li B, Bonhaus DW, Johnson LG, Lee K, Porter S, et al. (August 1997). "Catecholamine modulatory effects of nepicastat (RS-25560-197), a novel, potent and selective inhibitor of dopamine-beta-hydroxylase". British Journal of Pharmacology. 121 (8): 1803–1809. doi:10.1038/sj.bjp.0701315. PMC 1564872. PMID 9283721.
  12. ^ Martinho R, Correia G, Seixas R, Oliveira A, Silva S, Serrão P, et al. (2021-09-24). "Treatment With Nepicastat Decreases Contextual Traumatic Memories Persistence in Post-traumatic Stress Disorder". Frontiers in Molecular Neuroscience. 14: 745219. doi:10.3389/fnmol.2021.745219. PMC 8498196. PMID 34630037.
  13. ^ Moreira-Rodrigues M, Grubisha MJ (2022-12-08). "Editorial: Molecular mechanisms of neuropsychiatric diseases". Frontiers in Molecular Neuroscience. 15: 1102296. doi:10.3389/fnmol.2022.1102296. PMC 9773978. PMID 36568276.
  14. ^ Azevedo M, Martinho R, Oliveira A, Correia-de-Sá P, Moreira-Rodrigues M (2024-01-08). "Molecular pathways underlying sympathetic autonomic overshooting leading to fear and traumatic memories: looking for alternative therapeutic options for post-traumatic stress disorder". Frontiers in Molecular Neuroscience. 16: 1332348. doi:10.3389/fnmol.2023.1332348. PMC 10800988. PMID 38260808.
  15. ^ De La Garza R, Bubar MJ, Carbone CL, Moeller FG, Newton TF, Anastasio NC, et al. (June 2015). "Evaluation of the dopamine β-hydroxylase (DβH) inhibitor nepicastat in participants who meet criteria for cocaine use disorder". Progress in Neuro-Psychopharmacology & Biological Psychiatry. 59: 40–48. doi:10.1016/j.pnpbp.2015.01.009. PMC 4777897. PMID 25602710.
  16. ^ Martinho R, Correia G, Seixas R, Oliveira A, Silva S, Serrão P, et al. (2021-09-24). "Treatment With Nepicastat Decreases Contextual Traumatic Memories Persistence in Post-traumatic Stress Disorder". Frontiers in Molecular Neuroscience. 14: 745219. doi:10.3389/fnmol.2021.745219. PMC 8498196. PMID 34630037.
  17. ^ Azevedo M, Martinho R, Oliveira A, Correia-de-Sá P, Moreira-Rodrigues M (2024-01-08). "Molecular pathways underlying sympathetic autonomic overshooting leading to fear and traumatic memories: looking for alternative therapeutic options for post-traumatic stress disorder". Frontiers in Molecular Neuroscience. 16: 1332348. doi:10.3389/fnmol.2023.1332348. PMC 10800988. PMID 38260808.