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NCI Drug Dictionary


telotristat etiprate 
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. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Synonyms:TPH inhibitor LX1606
TPHI inhibitor LX1032
tryptophan hydroxylase inhibitor LX1032
Code names:LX1032