Telotristat Etiprate

**Semantic type:** Pharmacologic Substance

**Definition:** An orally bioavailable, small-molecule, tryptophan hydroxylase (TPH) inhibitor prodrug, with potential antiserotonergic activity. Upon administration, telotristat etiprate is converted to its active moiety, telotristat (LP-778902), which binds to and blocks the activity of TPH. This may result in a reduction in peripheral serotonin (5-HT) production and improvement of serotonin-mediated gastrointestinal effects such as severe diarrhea. TPH, the rate-limiting enzyme in serotonin biosynthesis, is overexpressed in carcinoid tumor cells.

**Synonyms:** - Ethyl 4-(2-amino-6-((1r)-1-(4-chloro-2-(3-methyl-1h-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pryrimidin-4-yl)-l-phenylalaninate N-benzoylglycinate (1:1) - LX1032 Hippurate - LX1606 Hippurate - TELOTRISTAT ETIPRATE - Xermelo