Molecular Weight(MW): 307.35
TAK-700 (Orteronel) is a potent and highly selective human 17,20-lyase inhibitor with IC50 of 38 nM, exhibits >1000-fold selectivity over other CYPs (e.g. 11-hydroxylase and CYP3A4). Phase 3.
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2. For more details, such as half maximal inhibitory concentrations (IC50s) and working concentrations of each inhibitor, please click on the link of the inhibitor of interest.
3. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
4. Orange "√" refers to compounds which do inhibitory effects on the related isoform, but without specific value.
|Description||TAK-700 (Orteronel) is a potent and highly selective human 17,20-lyase inhibitor with IC50 of 38 nM, exhibits >1000-fold selectivity over other CYPs (e.g. 11-hydroxylase and CYP3A4). Phase 3.|
In vitro, TAK-700 shows the potent inhibitory activity against rat and human steroid 17,20-lyase with IC50 of 54 nM and 38 nM, respectively. While other CYP isoforms including 11-hydroxylase and CYP3A4 are not significantly affected by TAK-700.  In microsomes expressing human CYP isoforms, TAK-700 exhibit greater inhibitory effects on 17,20-lyase with IC50 of 19 nM compared to the other CYP isoforms.  TAK-700 shows the inhibitory activity against monkey 17,20-lyase and 17-hydroxylase with IC50 of 27 nM and 38 nM, respectively.  In monkey adrenal cells, TAK-700 inhibits the ACTH stimulated production of DHEA and androstenedione with IC50 of 110 nM and 130 nM, respectively. Moreover, TAK-700 also potently inhibits DHEA production in human adrenocortical tumor line H295R cells with IC50 of 37 nM. 
|In vivo||In cynomolgus monkeys, oral treatment of TAK-700 at a dose of 1 mg/kg markedly reduces serum testosterone and dehydroepiandrosterone (DHEA) levels.  Oral treatment of TAK-700 at a dose of 1 mg/kg results in favorable pharmacokinetic parameters with Tmax, Cmax, t1/2 and AUC0-24 hours of 1.7 hours, 0.147 μg/mL, 3.8 hours and 0.727 μg h/mL, respectively. |
|In vitro||DMSO||61 mg/mL (198.47 mM)|
|Ethanol||8 mg/mL (26.02 mM)|
|In vivo||0.5% methylcellulose||30 mg/mL|
* 1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
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Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT02053311||Suspended||Prostate Cancer||Swiss Group for Clinical Cancer Research||June 2014||Phase 3|
|NCT02101684||Recruiting||Metastatic or Advanced Non-resectable Granulosa Cell Ovarian Tumors||Grupo Español de Tumores Huérfanos e Infrecuentes|Takeda||June 2014||Phase 2|
|NCT02054793||Withdrawn||Prostate Cancer|Castration-resistant Prostate Cancer||Emmanuel Antonarakis, MD|Millennium Pharmaceuticals, Inc.|Johns Hopkins University||June 2014||Phase 1|Phase 2|
|NCT01990209||Recruiting||Metastatic Breast Cancer||SCRI Development Innovations, LLC|Millennium Pharmaceuticals, Inc.||February 2014||Phase 2|
|NCT01658527||Withdrawn||Prostate Cancer||European Organisation for Research and Treatment of Cancer - EORTC||January 2014||Phase 2|
|NCT01866423||Terminated||Adenocarcinoma of the Prostate|Hormone-resistant Prostate Cancer|Recurrent Prostate Cancer|Stage IV Prostate Cancer||University of Southern California|National Cancer Institute (NCI)|Millennium Pharmaceuticals, Inc.||October 2013||Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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