Orteronel

Orteronel

CAT N°: 24191
Price:

From 268.00 227.80

Orteronel is a non-steroidal inhibitor of the 17,20-lyase activity of the cytochrome P450 (CYP) isoform CYP17A1 (IC50s = 48 and 19 nM for the rat and human enzyme, respectively), which is the CYP17A1 activity that converts progestogens into androgens.{39593} Orteronel is selective for the 17,20-lyase activity of CYP17A1 over its 11-hydroxylase activity and CYP3A4 (IC50s = >1,000 and >10,000 nM, respectively). It decreases adrenocorticotropic hormone-induced production of DHEA, androstenedione, cortisol, and aldosterone in monkey adrenal cells (IC50s = 110, 130, 310, and 4,400 nmol/L, respectively) and inhibits DHEA production in NCI-H295R human adrenocortical tumor cells.{39594} A single oral dose of orteronel (0.3-10 mg/kg) dose-dependently decreases DHEA, cortisol, and testosterone levels in the plasma of intact cynomolgus monkeys for at least 10 hours, and chronic dosing of 15 mg/kg twice daily suppresses levels for up to seven days of treatment. It also decreases DHEA and testosterone plasma levels in castrated monkeys, indicating an effect on extra-gonadal production of testosterone.

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