Nazartinib (EGF816, NVS-816)

Catalog No.S7824

Nazartinib (EGF816, NVS-816) Chemical Structure

Molecular Weight(MW): 495.02

Nazartinib (EGF816, NVS-816) is a covalent, irreversible, mutant-selective EGFR inhibitor that has nanomolar inhibitory potency against activating mt (L858R, ex19del) and T790M mt, with up to 60-fold selectivity over wild type (wt) EGFR in vitro.

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Description Nazartinib (EGF816, NVS-816) is a covalent, irreversible, mutant-selective EGFR inhibitor that has nanomolar inhibitory potency against activating mt (L858R, ex19del) and T790M mt, with up to 60-fold selectivity over wild type (wt) EGFR in vitro.
Targets
mutant EGFR [2]
0.031 μM(Ki)
In vitro

EGF816 is a novel, covalent, mutant-selective EGFR inhibitor with nearly equipotent activity on both oncogenic (L858R and ex19del) and T790M-resistant mutations and good selectivity over WT EGFR[1]. EGF816 potently inhibits the most common EGFR mutations L858R, Ex19del, and T790M in vitro. The cellular activity of EGF816 on EGFR mutants are assessed using three well-characterized cell lines, H3255, HCC827, and H1975, which harbor the L858R, Ex19del, and L858R/T790M mutations, respectively. After incubation with cells for 3 hours, EGF816 shows potent inhibition of pEGFR levels in H3255, HCC827, and H1975 with EC50 values of 5, 1, and 3 nmol/L, respectively. Cellular-based assays shows that EGF816 is selective toward mutant over WT EGFR[2].

In vivo EGF816 is well tolerated and possesses favorable physicochemical properties and good oral bioavailability in mice. It shows moderate volume of distribution and low to moderate clearance in rodents (30% and 35% of rat and mouse liver blood flow, respectively). In the dog, EGF816 shows high clearance and high volume of distribution[1]. EGF816 also demonstrates antitumor activity in an exon 20 insertion mutant model. At levels above efficacious doses, EGF816 treatment leads to minimal inhibition of WT EGFR and is well tolerated. In single-dose studies, EGF816 provides sustained inhibition of EGFR phosphorylation, consistent with its ability for irreversible binding. EGF816 has a longer half-life in human than mouse and is currently being evaluated in phase I/II clinical trials in patients harboring EGFR mutations, including T790M[2].

Protocol

Cell Research:[2]
+ Expand
  • Cell lines: H1975, H3255, HCC827, A431, and HaCaT cells
  • Concentrations: --
  • Incubation Time: 3 h
  • Method: H1975, H3255, HCC827, A431, and HaCaT cells are maintained in RPMI media supplemented with antibiotics and 10% FBS, maintained in a 37°C, 5% CO2 humidified incubator. After an overnight incubation in 384-well plates, serial diluted compounds are transferred to cells and incubated for 3 hours. HaCaT cells are stimulated with 10 ng/mL EGF (50 ng/mL EGF for A431) for 5 minutes. Cells are lysed in 1% Triton X-100 buffer containing protease and phosphatase inhibitors. Lysates are analyzed by sandwich ELISA utilizing goat anti-EGFR capture antibody, anti-phospho-EGFR(Y1173), and anti-rabbit HRP. Signal is measured by chemiluminescent detection.
    (Only for Reference)
Animal Research:[1]
+ Expand
  • Animal Models: balb/c mice and male Wistar rats
  • Formulation: 5% ethanol, 25% PEG300, and 70% D5W (5% dextrose in water)
  • Dosages: 50 mg/kg
  • Administration: oral administration
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 99 mg/mL (199.99 mM)
Ethanol 99 mg/mL (199.99 mM)
Water 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.

Chemical Information

Molecular Weight 495.02
Formula

C26H31ClN6O2

CAS No. 1508250-71-2
Storage powder
Synonyms N/A

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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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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID