In vitro: AZD9496 showed pmol/L equipotent binding to both ERα and ERβ isoforms. AZD9496 directly targets ERα for downregulation in vitro. And it also antagonizes and downregulates mutant ER in vitro and in vivo. The IC50s of ERα binding, ERα downregulation, ERα antagonism for AZD9496 are 0.82, 0.14 and 0.28 nM, respectively. In vivo: AZD9496 showed high oral bioavailability across three species (F% 63, 91, and 74, rat, mouse, and dog, respectively) with generally low volume and clearance across species, albeit a higher clearance in mouse. The percent free levels in human plasma of 0.15% were 5-fold higher than those measured for fulvestrant. AZD9496 is a potent, oral inhibitor of breast tumor growth in vivo. AZD9496 causes tumor regressions in combination with PI3K pathway and CDK4/6 inhibitors and in an estrogen-deprived ER+ model of resistance. This effect was accompanied by a dose-dependent decrease in PR protein levels. AZD9496 is currently being evaluated in a phase I clinical trial.
|Cell lines||MCF-7 cells|
|Preparation method||Cells were grown in steroid-free conditions in SILAC media containing 13C615N4 L-arginine to label ERα peptide as "heavy" and then switched to grow in media containing unlabeled l-arginine to label newly synthesized protein as "normal" with 0.1% DMSO, 300 nmol/L tamoxifen, 100 nmol/L AZD9496, or 100 nmol/L fulvestrant for the time indicated.|
|Incubation time||0, 10, 20, 30, 40, 50 h|
|Animal models||Sexually immature female Han Wistar rats|
|Dosages||5 and 25 mg/kg once daily|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||88 mg/mL in DMSO|
AZD9496: An Oral Estrogen Receptor Inhibitor That Blocks the Growth of ER-Positive and ESR1-Mutant Breast Tumors in Preclinical Models.
Weir HM, et al. Cancer Res. 2016 Jun 1;76(11):3307-18. PMID: 27020862.
Optimization of a Novel Binding Motif to (E)-3-(3,5-Difluoro-4-((1R,3R)-2-(2-fluoro-2-methylpropyl)-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl)phenyl)acrylic Acid (AZD9496), a Potent and Orally Bioavailable Selective Estrogen Receptor Downregulator and Antagonist.
De Savi C, et al. J Med Chem. 2015 Oct 22;58(20):8128-40. PMID: 26407012.
|Related Epigenetic Reader Domain Products|
666-15 is a potent and selective CREB inhibitor with an IC50 of 81 nM.
|JQ-1 carboxylic acid
(+)-JQ1 carboxylic acid is the carboxylic acid form of (+)-JQ1 for derivative synthesis.
GSK6853 is a selective benzimidazolone BRPF1 inhibitor with pIC50 of 8.1(TR-FRET) showing greater than 1600-fold selectivity over all other bromodomains tested.
Mivebresib(ABBV-075) is a novel BET family bromodomain inhibitor. It binds bromodomains of BRD2/4/T with similar affinities (Ki of 1-2.2 nM) and highly selective for 18 bromodomain proteins tested (Kd > 1 μM; more than 600-fold selectivity vs. BRD4)
PFI-4 is a potent and selective BRPF1 bromodomain inhibitor with IC50 of 80 nM.
Products are for research use only. Not for human use. We do not sell to patients.
© Copyright 2010-2017 AbMole BioScience. All Rights Reserved.