Nazartinib (EGF816)

Catalog No.S7824 Batch:S782401

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Technical Data

Formula

C26H31ClN6O2
Molecular Weight 495.02 CAS No. 1508250-71-2
Solubility (25°C)* In vitro DMSO 99 mg/mL (199.99 mM)
Ethanol 99 mg/mL (199.99 mM)
Water Insoluble
* <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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

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 (from reference)

Cell Assay:[2]
  • 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.
Animal Study:[1]
  • Animal Models

    balb/c mice and male Wistar rats

  • Dosages

    50 mg/kg

  • Administration

    oral administration

Selleck's Nazartinib (EGF816) has been cited by 6 publications

Poziotinib for EGFR exon 20-mutant NSCLC: Clinical efficacy, resistance mechanisms, and impact of insertion location on drug sensitivity [ Cancer Cell, 2022, 40(7):754-767.e6] PubMed: 35820397
IGF-binding proteins secreted by cancer-associated fibroblasts induce context-dependent drug sensitization of lung cancer cells [ Sci Signal, 2022, 15(747):eabj5879] PubMed: 35973030
Pan-Cancer Landscape and Analysis of ERBB2 Mutations Identifies Poziotinib as a Clinically Active Inhibitor and Enhancer of T-DM1 Activity. [ Cancer Cell, 2019, 10.1016/j.ccell.2019.09.001] PubMed: 31588020
Preclinical Modeling of Osimertinib for NSCLC With EGFR Exon 20 Insertion Mutations. [ J Thorac Oncol, 2019, 14(9):1556-1566] PubMed: 31108249
The Third-Generation EGFR Inhibitor, Osimertinib, Promotes c-FLIP Degradation, Enhancing Apoptosis Including TRAIL-Induced Apoptosis in NSCLC Cells with Activating EGFR Mutations [ Transl Oncol, 2019, 12(5):705-713] PubMed: 30856555
Mechanisms and clinical activity of an EGFR and HER2 exon 20-selective kinase inhibitor in non-small cell lung cancer. [ Nat Med, 2018, 24(5):638-646] PubMed: 29686424

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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