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A quantitative method for the selective 5-HT2A agonist 25CN-NBOH in rat plasma and brain

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  • Kateryna Breusova
  • Kristian Goldeman Ernstsen
  • Mikael Palner
  • Kristian Linnet
  • Jesper Langgaard Kristensen
  • Andreas Christopher Kretschmann
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In recent years, agonists of the 5-HT2A receptor have gained increasing attention for their potential therapeutic use to treat psychological disorders such as anxiety and depression. Here, we report the development and validation of an LC-MSMS based analytical method for the quantification of the novel selective 5-HT2A agonist 25CN-NBOH in rat plasma and brain. As simple and efficient sample clean-up we applied the Phree Phospholipid Removal approach from Phenomenex, which is particularly novel for brain samples. In order to investigate the metabolic stability of 25CN-NBOH in vitro biotransformation studies with recombinant enzymes and human liver microsomes were conducted. Several biotransformation products and pathways could be identified. Based on the in vitro study one of the putative metabolites (2C-CN) was included in the analytical method development. To test the methods applicability 25CN-NBOH was quantified in plasma and brain samples from a pharmacokinetic in vivo study with Wildtype Long Evans rats. Both the in vitro metabolism data as well as the in vivo PK data suggest that 25CN-NBOH is susceptible to metabolism, but is degraded slower and is more stable compared to other NBOMe's investigated to date. The developed analytical method might serve as basis to include further 25CN-NBOH metabolites. It is expected to facilitate further preclinical and clinical investigations of 25CN-NBOH in biological matrices.

OriginalsprogEngelsk
Artikelnummer114016
TidsskriftJournal of Pharmaceutical and Biomedical Analysis
Vol/bind199
Sider (fra-til)114016
ISSN0731-7085
DOI
StatusUdgivet - 30 maj 2021

ID: 67562263