AMG-900

Aurora kinase inhibitor CAS# 945595-80-2

AMG-900

Catalog No. BCC2175----Order now to get a substantial discount!

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Chemical structure

AMG-900

3D structure

Chemical Properties of AMG-900

Cas No. 945595-80-2 SDF Download SDF
PubChem ID 24856041 Appearance Powder
Formula C28H21N7OS M.Wt 503.58
Type of Compound N/A Storage Desiccate at -20°C
Solubility DMSO : ≥ 50 mg/mL (99.29 mM)
*"≥" means soluble, but saturation unknown.
Chemical Name N-[4-[3-(2-aminopyrimidin-4-yl)pyridin-2-yl]oxyphenyl]-4-(4-methylthiophen-2-yl)phthalazin-1-amine
SMILES CC1=CSC(=C1)C2=NN=C(C3=CC=CC=C32)NC4=CC=C(C=C4)OC5=C(C=CC=N5)C6=NC(=NC=C6)N
Standard InChIKey IVUGFMLRJOCGAS-UHFFFAOYSA-N
Standard InChI InChI=1S/C28H21N7OS/c1-17-15-24(37-16-17)25-20-5-2-3-6-21(20)26(35-34-25)32-18-8-10-19(11-9-18)36-27-22(7-4-13-30-27)23-12-14-31-28(29)33-23/h2-16H,1H3,(H,32,35)(H2,29,31,33)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of AMG-900

DescriptionAMG-900 is a potent and highly selective inhibitor of Aurora kinases with IC50 values of 5 nM, 4 nM and 1 nM for Aurora A, B and C, respectively.
TargetsAurora AAurora BAurora C   
IC505 Nm4 nM1 nM    

Protocol

Cell Assay [1]
Different tumor cell lines including NCI-H460, MDA-MB231, MES-SA, NCI-H460 PTX, MDA-MB-231 PTX, MES-SA Dx5, and HCT-15. are treated with AMG 900 (0.5, 5.0, 50 nM) for 48 hours, washed twice with complete media, and cells are replated at a density of 5000 cells per well in drug-free complete media. Cells are grown until the DMSO control wells are confluent. Cells are stained with crystal violet dye, washed with distilled water, and imaged using a digital scanner[1].

Animal Administration [2][3]
Mice[2] Female athymic nude mice of approximately 14 weeks of age are used. Mice are injected subcutaneously with 2×106 COLO 205 cells in 100 μL of 50% matrigel. Mice with established tumors (approximately 200 mm3) are assigned into experimental groups (n=10 per group) and administered a single oral dose of vehicle or AMG 900 at 3.75, 7.5, and 15 mg/kg. Three hours after treatment tissue specimens (bone marrow, tumor, and skin) are collected from individual mice for pharmacodynamic and histological analysis. Blood plasma samples (50 μL) are collected from individual mice to determine the concentration of AMG 900 using quantitative methods. Excised tumors are divided in half for parallel flow and imaging based cytometric analyses.Rats[3] Effect of food intake on AMG 900 PK is evaluated in male rats and male dogs following a single oral dose of AMG 900 at 5 mg/kg (rats) or 2 mg/kg (dogs) in the oral formulation mentioned above. For the rats, food is removed ~16 h before dosing for the fasted group, although the fed group had free access to standard laboratory rodent chow throughout the study; food is returned to rats in the fasted group 2 h post-dose. All the dogs are fasted for ~16 h before dosing. Each dog in the fed group receive 350 g of moist food 1 h prior to dosing, and any remaining food is removed after 1 h. All the dogs are fed 2 h post-dose.

References:
[1]. Payton M, et al. Preclinical evaluation of AMG 900, a novel potent and highly selective pan-aurora kinase inhibitor with activity in taxane-resistant tumor cell lines. Cancer Res, 2010, 70(23), 9846-9854. [2]. Juan G, et al. AMG 900, a potent inhibitor of aurora kinases causes pharmacodynamic changes in p-Histone H3 immunoreactivity in human tumor xenografts and proliferating mouse tissues. J Transl Med. 2014 Nov 4;12:307. [3]. Huang L, et al. In vitro and in vivo pharmacokinetic characterizations of AMG 900, an orally bioavailable small molecule inhibitor of aurora kinases. Xenobiotica. 2011 May;41(5):400-8.

AMG-900 Dilution Calculator

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AMG-900 Molarity Calculator

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Preparing Stock Solutions of AMG-900

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.9858 mL 9.9289 mL 19.8578 mL 39.7156 mL 49.6445 mL
5 mM 0.3972 mL 1.9858 mL 3.9716 mL 7.9431 mL 9.9289 mL
10 mM 0.1986 mL 0.9929 mL 1.9858 mL 3.9716 mL 4.9645 mL
50 mM 0.0397 mL 0.1986 mL 0.3972 mL 0.7943 mL 0.9929 mL
100 mM 0.0199 mL 0.0993 mL 0.1986 mL 0.3972 mL 0.4964 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on AMG-900

AMG900 is a highly sensitive and orally bioavailable inhibitor of Aurora Kinase with IC50 values of 5 nmol/L.

AMG900 is an inhibitor of all three aurora kinase family members. It was founded through the discovery of a new class of ATP-competitive phtha-lazinamine small molecule inhibitors of aurora kinases. AMG900 inhibits autophosphorylation of aurora-A and aurora-B in tumor cells, and also aborts cell division without a prolonged mitosis arrest and finally results cell death. It can inhibit 26 different tumor cell lines proliferation, meanwhile, it also has the ability to enhance other aurora kinase inhibitors' effective. [1, 2]

AMG900 had been tested in animal level using mice models. Mice bearing established HCT116 tumors and orally delivery AMG900. Comparing to the vehicle group, the experiment groups delivery AMG900 with different concentration showed an obvious smaller tumor volume. These results revealed that AMG900 has the ability to significantly inhibit tumor growth.

References:
1.  Payton, M., et al., Preclinical evaluation of AMG 900, a novel potent and highly selective pan-aurora kinase inhibitor with activity in taxane-resistant tumor cell lines. Cancer Res, 2010. 70(23): p. 9846-54.
2.  Geuns-Meyer, S., et al., Discovery of N-(4-(3-(2-Aminopyrimidin-4-yl)pyridin-2-yloxy)phenyl)-4- (4-methylthiophen-2-yl)p hthalazin-1-amine (AMG 900), A Highly Selective, Orally Bioavailable Inhibitor of Aurora Kinases with Activity against Multidrug-Resistant Cancer Cell Lines. J Med Chem, 2015. 58(13): p. 5189-207.

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References on AMG-900

Discovery of N-(4-(3-(2-aminopyrimidin-4-yl)pyridin-2-yloxy)phenyl)-4-(4-methylthiophen-2-yl)p hthalazin-1-amine (AMG 900), a highly selective, orally bioavailable inhibitor of aurora kinases with activity against multidrug-resistant cancer cell lines.[Pubmed:25970324]

J Med Chem. 2015 Jul 9;58(13):5189-207.

Efforts to improve upon the physical properties and metabolic stability of Aurora kinase inhibitor 14a revealed that potency against multidrug-resistant cell lines was compromised by increased polarity. Despite its high in vitro metabolic intrinsic clearance, 23r (AMG 900) showed acceptable pharmacokinetic properties and robust pharmacodynamic activity. Projecting from in vitro data to in vivo target coverage was not practical due to disjunctions between enzyme and cell data, complex and apparently contradictory indicators of binding kinetics, and unmeasurable free fraction in plasma. In contrast, it was straightforward to relate pharmacokinetics to pharmacodynamics and efficacy by following the time above a threshold concentration. On the basis of its oral route of administration, a selectivity profile that favors Aurora-driven pharmacology and its activity against multidrug-resistant cell lines, 23r was identified as a potential best-in-class Aurora kinase inhibitor. In phase 1 dose expansion studies with G-CSF support, 23r has shown promising single agent activity.

A phase 1 study of AMG 900, an orally administered pan-aurora kinase inhibitor, in adult patients with acute myeloid leukemia.[Pubmed:28370201]

Am J Hematol. 2017 Jul;92(7):660-667.

Aurora kinases are involved in the pathophysiology of several cancers including acute myeloid leukemia (AML). In this phase 1 study, we investigated the safety and efficacy of AMG 900, an orally administered, highly potent, selective, small-molecule inhibitor of both Aurora kinase A and B, in patients with AML . Patients with pathologically documented AML who either declined standard treatments or had relapsed from or were refractory to previous therapies were enrolled. Two every-2-week dose-escalation schedules using a modified 3 + 3 + 3 design were evaluated AMG 900 given daily for 4 days with 10 days off (4/10 schedule), and AMG 900 given daily for 7 days with 7 days off (7/7 schedule). Thirty-five patients were enrolled at 9 different dose levels: 22 patients on the 4/10 schedule (doses from 15 to 100 mg daily), and 13 patients on the 7/7 schedule (doses from 30 to 50 mg daily). Both schedules were tolerated; nausea (31%), diarrhea (29%), febrile neutropenia (29%), and fatigue (23%) were the most common treatment-related adverse events. Three patients (9%) achieved complete response with incomplete count recovery. Patients with higher baseline expression of a set of specific pathway-related genes (BIRC5, AURKA, TTK, CDC2, and CCNB1) were more likely to respond in an exploratory biomarker analysis. AMG 900 was tolerated in a general AML population, and pathway-specific biomarkers identified a potential target population. Future research efforts will be directed toward further exploration of biomarkers of response and combination of AMG 900 with other anticancer agents.

Antitumour activity of AMG 900 alone or in combination with histone deacetylase inhibitor SaHa on medulloblastoma cell lines.[Pubmed:26000978]

Neurol Res. 2015 Aug;37(8):703-11.

OBJECTIVES: Medulloblastoma (MB) is the most common malignant childhood brain tumour. Aurora kinases are essential for cell division and are primarily active during mitosis. Recently, the combination of aurora kinases inhibitors (iAURK) and histone deacetylase inhibitors (iHDAC) has shown potential antitumour effects and had significant biological effects in preclinical cancer models. In this study, we analysed the effects of the pan-aurora kinases inhibitor AMG 900 alone or in combination with the iHDAC SaHa (Vorinostat) on paediatric MB cell lines (UW402, UW473 and ONS-76). METHODS: Cell proliferation was measured by XTT assay, apoptosis was determined by flow cytometry and clonogenic capacity was studied. qRT-PCR assays were used to determine the mRNA expression in MB cell lines after treatment. Drug combination analyses were made based on Chou-Talalay method. RESULTS: AMG 900 caused the inhibition of cell proliferation, diminution of clonogenic capacity and increased the apoptosis rate in cell lines (P < 0.05). A synergistic effect in the AMG900-SaHa combination was evidenced on the inhibition of cell proliferation in all cell lines, especially in sequential drug treatment. Moreover, the combination of these drugs reached 100% of the inhibition in colony formation (synergistic effect). The treatment with AMG 900 increased the p21 and GDF15 expression, but did not alter the TP53 in one of the cell lines. CONCLUSIONS: These results indicate that AMG 900 may be a promising drug for the adjuvant treatment of MB, mainly when combined with iHDAC.

AMG 900, a potent inhibitor of aurora kinases causes pharmacodynamic changes in p-Histone H3 immunoreactivity in human tumor xenografts and proliferating mouse tissues.[Pubmed:25367255]

J Transl Med. 2014 Nov 4;12:307.

BACKGROUND: The Aurora family of serine-threonine kinases are essential regulators of cell division in mammalian cells. Aurora-A and -B expression and kinase activity is elevated in a variety of human cancers and is associated with high proliferation rates and poor prognosis. AMG 900 is a highly potent and selective pan-aurora kinase inhibitor that has entered clinical evaluation in adult patients with advanced cancers. In mice, oral administration of AMG 900 blocks the phosphorylation of histone H3 on serine-10 (p-Histone H3), a proximal substrate of aurora-B and inhibits the growth of multiple human tumor xenografts, including multidrug-resistant models. METHODS: In order to establish a preclinical pharmacokinetic-pharmacodynamic (PK-PD) relationship for AMG 900 that could be translated to the clinic, we used flow cytometry and laser scanning cytometry detection platforms to assess the effects on p-Histone H3 inhibition in terms of sensitivity, precision, and specificity, in human tumor xenografts in conjunction with mouse skin and bone marrow tissues. Mice with established COLO 205 tumors were administered AMG 900 at 3.75, 7.5, and 15 mg/kg and assessed after 3 hours. RESULTS: Significant suppression of p-Histone H3 in mouse skin was only observed at 15 mg/kg (p <0.0001), whereas in mouse bone marrow and in tumor a dose-dependent inhibition was achieved at all three doses (p 99% inhibition, p <0.0001) in COLO 205 tumors. Lastly, we illustrate this LSC-based approach can detect p-Histone H3 positive cells using mock FNAs from primary human breast tumor tissues. CONCLUSION: Phosphorylation of histone H3 is a useful biomarker to determine the pharmacodynamics (PD) activity of AMG 900. FNA biopsies may be a viable approach for assessing AMG 900 PD effects in the clinic.

Description

AMG 900 is a potent and highly selective pan-Aurora kinases inhibitor with IC50 of 5 nM, 4 nM and 1 nM for Aurora A, B and C, respectively.

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