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Mavelertinib (PF06747775)

Alias: PF-06747775 PF6747775PF06747775 PF 6747775PF 06747775 PF-6747775
Cat No.:V25072 Purity: ≥98%
Mavelertinib (formerly PF-06747775; PF06747775) is amutant-selective,orally bioactive and irreversible/covalent inhibitor of the epidermal growth factor receptor (EGFR) T790M.
Mavelertinib (PF06747775)
Mavelertinib (PF06747775) Chemical Structure CAS No.: 1776112-90-3
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
Mavelertinib (formerly PF-06747775; PF06747775) is a mutant-selective, orally bioactive and irreversible/covalent inhibitor of the epidermal growth factor receptor (EGFR) T790M. It has potential antineoplastic activity. As as EGFR T790M inhibitor, PF-06747775 specifically binds to and inhibits EGFR T790M, a secondarily acquired resistance mutation, which prevents EGFR-mediated signaling and leads to cell death in EGFR T790M-expressing tumor cells. Compared to some other EGFR inhibitors, PF-06747775 may have therapeutic benefits in tumors with T790M-mediated drug resistance.
Mavelertinib (PF06747775) is a potent, third-generation, irreversible inhibitor of the epidermal growth factor receptor (EGFR). It is specifically designed to target the T790M resistance mutation in non-small cell lung cancer (NSCLC), while also inhibiting activating EGFR mutations. It is an orally bioavailable small molecule. Its development is part of the effort to overcome resistance to earlier-generation EGFR inhibitors in the treatment of NSCLC.
Biological Activity I Assay Protocols (From Reference)
Targets
Mavelertinib targets the epidermal growth factor receptor (EGFR). It is an irreversible inhibitor, meaning it forms a covalent bond with a cysteine residue (Cys797) in the ATP-binding pocket of the EGFR kinase domain. This covalent binding provides prolonged inhibition. It is designed to be potent against both activating EGFR mutations and the T790M resistance mutation, while showing less activity against wild-type EGFR.
ln Vitro
Selectivity against wild-type EGFR is demonstrated by mavelertinib (IC50=307 nM)[1]. Less than 50% of non-kinase targets are affected or inhibited by mavelertinib (10 μM) [1]. With an IC50 > 100 μM, mavelertinib suppresses hERG26 current[1].
In vitro, Mavelertinib is a potent inhibitor of mutant EGFR kinases. It shows activity against EGFR with the T790M mutation and other activating mutations. Its activity is characterized by its IC50 values against these mutant kinases in biochemical assays. In cellular assays, it inhibits the proliferation of NSCLC cell lines harboring these mutations, including those resistant to first- and second-generation EGFR inhibitors.
ln Vivo
Following oral dosing (1 in mice, 30 in rats, and 3 mg/kg in dogs), mavelertinib has low to moderate oral bioavailability (60% in mice, 11% in rats, and 66% in dogs) [1]. Intravenous injection (1 mg/kg) in small rats, rats, and dogs [1].
In vivo, Mavelertinib has demonstrated efficacy in preclinical models of NSCLC. In xenograft models bearing tumors with the T790M mutation, it induces tumor regression. Its in vivo activity is a result of its potent and irreversible inhibition of the mutant EGFR. It has also been evaluated in clinical trials for patients with EGFR-mutant NSCLC.
Enzyme Assay
In vitro enzyme/receptor binding studies for Mavelertinib are performed using kinase activity assays. In these assays, the recombinant EGFR kinase domain (wild-type or mutant) is incubated with ATP and a substrate in the presence of varying concentrations of the inhibitor. The inhibition of kinase activity is measured, and the IC50 value is calculated.
Cell Assay
In vitro cellular assays for Mavelertinib are used to study its effects on cancer cells. Cells harboring EGFR mutations are treated with the compound. Key readouts include cell viability (MTT or CellTiter-Glo assays), apoptosis (Annexin V/PI staining), and the inhibition of EGFR phosphorylation and downstream signaling (Western blotting).
Animal Protocol
Animal/Disease Models: Female Nu/nu (nude) mice [1]
Doses: 1 mg/kg (pharmacokinetic/PK/PK analysis)
Route of Administration: Po and iv Administration
Experimental Results: Oral bioavailability (60%), T1/2 (1.48 h).
In vivo animal studies for Mavelertinib are conducted in xenograft models. Tumor-bearing mice are treated with the compound, and tumor growth inhibition is measured. These studies confirm its in vivo efficacy against EGFR-mutant tumors.
ADME/Pharmacokinetics
Pharmacokinetic properties of Mavelertinib include good oral bioavailability. It has a molecular weight of 588.74 g/mol and a formula of C30H28ClF2N7O3. It is metabolized in the liver. Its half-life supports once-daily dosing.
Toxicity/Toxicokinetics
Mavelertinib is a research compound and is not an approved drug. As an EGFR inhibitor, its side effects are likely similar to other drugs in its class, including skin rash, diarrhea, and interstitial lung disease. Its safety and efficacy have been evaluated in clinical trials.
References

[1]. Discovery of N-((3R,4R)-4-Fluoro-1-(6-((3-methoxy-1-methyl-1H-pyrazol-4-yl)amino)-9-methyl-9H-purin-2-yl)pyrrolidine-3-yl)acrylamide (PF-06747775) through Structure-Based Drug Design: A High Affinity Irreversible Inhibitor Targeting Onc.

[2]. Novel Third-Generation EGFR Tyrosine Kinase Inhibitors and Strategies to Overcome Therapeutic Resistance in Lung Cancer. Cancer Res. 2019 Feb 15; 79(4): 689-698.

[3]. Recent updates on third generation EGFR inhibitors and emergence of fourth generation EGFR inhibitors to combat C797S resistance. Eur J Med Chem. 2017 Dec 15; 142:32-47.

[4]. First-in-human phase I study of PF-06747775, a third-generation mutant selective EGFR tyrosine kinase inhibitor (TKI) in metastatic EGFR mutant NSCLC after progression on a first-line EGFR TKI. Annals of Oncology. 2017 Sep.

Additional Infomation
Mavelertinib is being investigated in the clinical trial NCT02349633 (a study in patients with non-small cell lung cancer carrying EGFR mutations (Del 19 or L858R +/- T790M)). Mavelertinib is an oral epidermal growth factor receptor (EGFR) T790M mutant inhibitor with potential antitumor activity. Mavelertinib specifically binds to and inhibits EGFR T790M (a secondary acquired resistance mutation), thereby blocking EGFR-mediated signaling and leading to the death of tumor cells expressing EGFR/T790M. Compared to some other EGFR inhibitors, PF-06747775 may have a therapeutic advantage against tumors with T790M-mediated resistance. This drug has very low activity against wild-type EGFR (WT EGFR) and does not cause the dose-limiting toxicities associated with the use of non-selective EGFR inhibitors (which inhibit WT EGFR). EGFR is a receptor tyrosine kinase that can be mutated in various tumor cell types and plays a key role in tumor cell proliferation and tumor angiogenesis.
Mavelertinib is a third-generation EGFR inhibitor developed for the treatment of NSCLC. Its CAS number is 1776112-90-3. It is also known as PF06747775. It represents a strategy to overcome resistance to earlier EGFR inhibitors by targeting the T790M mutation.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H22FN9O2
Molecular Weight
415.424785137177
Exact Mass
415.188
CAS #
1776112-90-3
PubChem CID
91668194
Appearance
White to off-white solid powder
Density
1.5±0.1 g/cm3
Index of Refraction
1.715
LogP
-1.82
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
6
Heavy Atom Count
30
Complexity
643
Defined Atom Stereocenter Count
2
SMILES
CN1C=C(C(=N1)OC)NC2=C3C(=NC(=N2)N4C[C@H]([C@@H](C4)F)NC(=O)C=C)N(C=N3)C
InChi Key
JYIUNVOCEFIUIU-GHMZBOCLSA-N
InChi Code
InChI=1S/C18H22FN9O2/c1-5-13(29)21-11-8-28(6-10(11)19)18-23-15(14-16(24-18)26(2)9-20-14)22-12-7-27(3)25-17(12)30-4/h5,7,9-11H,1,6,8H2,2-4H3,(H,21,29)(H,22,23,24)/t10-,11-/m1/s1
Chemical Name
N-((3R,4R)-4-fluoro-1-(6-((3-methoxy-1-methyl-1H-pyrazol-4-yl)amino)-9-methyl-9H-purin-2-yl)pyrrolidin-3-yl)acrylamide
Synonyms
PF-06747775 PF6747775PF06747775 PF 6747775PF 06747775 PF-6747775
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~47.5 mg/mL (~114.34 mM)
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.4072 mL 12.0360 mL 24.0720 mL
5 mM 0.4814 mL 2.4072 mL 4.8144 mL
10 mM 0.2407 mL 1.2036 mL 2.4072 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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