Ensartinib

Alias: X396; X-396; X 396
Cat No.:V2779 Purity: ≥98%
Ensartinib (formerly known as X-396) is a novel, highlypotent andselective,orally available small molecule inhibitor of ALK (anaplastic lymphoma kinase) with an IC50 less than 4 nM in Ambit assays.
Ensartinib Chemical Structure CAS No.: 1370651-20-9
Product category: ALK
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
10mg
25mg
50mg
100mg
250mg
Other Sizes

Other Forms of Ensartinib:

  • Ensartinib hydrochloride ( X396)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Ensartinib (formerly known as X-396) is a novel, highly potent and selective, orally available small molecule inhibitor of ALK (anaplastic lymphoma kinase) with an IC50 less than 4 nM in Ambit assays. It is a tyrosine kinase inhibitor (TKI) that inhibits ALK, as well as MET, ABL, Axl, EPHA2, LTK, ROS1, and SLK. Ensartinib considerably reduces ALK autophosphorylation, though greater concentrations are needed to prevent autophosphorylation of the wild-type fusion. ALK-mediated signaling is disrupted when ALK is inhibited, which ultimately stops tumor cell growth in tumor cells that express ALK. Thus, ensartinib may possess anticancer properties.

Biological Activity I Assay Protocols (From Reference)
Targets
ALK (IC50 <0.4 nM); MET (IC50 = 0.74 nM)
ln Vitro
Ensartinib (X-396) is tested for its capacity to suppress the growth of various cancer cell lines that carry point mutations or ALK fusions. The H3122 lung cancer cells that harbor EML4-ALK E13;A20 are susceptible to the potency of entartinib (IC50: 15nM). When H2228 lung cancer cells expressing EML4-ALK E6a/b; A20 are exposed to entartinib, it is also effective (IC50: 45 nM). In SUDHL-1 lymphoma cells that harbor NPM-ALK, X-376 is also effective (IC50: 9 nM). In addition, X-376 inhibits the following cell lines: HepG2, PC-9 lung cancer, MKN-45 gastric carcinoma, SY5Y neuroblastoma cells harboring ALK F1174L, and 68 nM, 156 nM, 9.644 μM, and 2.989 μM, respectively.
ln Vivo
Ensartinib exhibits significant bioavailability and moderate half-lives in vivo, according to a pharmacokinetic analysis. Examined are Ensartinib (X-396)'sinvivo effects on H3122 xenografts. Ensartinib, 25 mg/kg bid, is administered to nude mice containing H3122 xenografts. When compared to the vehicle alone, ensartinib considerably slows the growth of tumors. Ensartinib appears to be well-tolerated in vivo in the xenograft experiments. Treatment with ensartinib has no effect on mouse weight. Mice given drugs seem healthy and do not show any symptoms of toxicity from the compounds. Additional systemic toxicity and toxico-kinetic studies are carried out in Sprague Dawley (SD) rats to further evaluate potential side effects of ensartinib. After ten days of repeated oral administration of Ensartinib at doses of 20, 40, and 80 mg/kg in SD rats, every animal survives to the end of the study. Ensartinib has been found to have a no significant toxicity (NST) level of 80 mg/kg. Ensartinib has an AUC of 66 μMΗhr and a Cmax of 7.19 μM at NST levels[1].
Enzyme Assay
Ensartinib (also known as X-396) is a novel, potent and specific ALK TKI with the IC50 less than 4 nM in Ambit assays.
Cell Assay
The following cells types are treated with ALK TKIs or vehicle for 72 hours: SUDHL-1 lymphoma cells with NPM-ALK fusion, H2228 lung cancer cells harboring the EML4-ALK E6a/b;A20 fusion, H3122 lung cancer cells containing the EML4-ALK E13;A20 fusion, and SY5Y neuroblastoma cells with an activating mutation within the ALK kinase domain (ALK F1174L). Growth inhibition is measured using cell titer blue assays.
Animal Protocol
Mice: H3122 cells are injected into nude mice (nu/nu). Two groups of 27 athymic mice with H3122 tumors are randomly assigned to receive either the control vehicle or 25 mg/kg of ensartinib (X-396) orally via gavage once the tumors have reached an average volume of 450 mm3. Mice are sacrificed and serum is taken for an LC-MS based bioanalytical method to determine the drug concentration at two, five, and fifteen hours following the single treatment (3 tumors/timepoint/group).
References

[1]. Insights into ALK-driven cancers revealed through development of novel ALK tyrosine kinaseinhibitors. Cancer Res. 2011 Jul 15;71(14):4920-31.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H27CL2FN6O3
Molecular Weight
561.44
Exact Mass
560.15
Elemental Analysis
C, 55.62; H, 4.85; Cl, 12.63; F, 3.38; N, 14.97; O, 8.55
CAS #
1370651-20-9
Related CAS #
Ensartinib dihydrochloride;2137030-98-7
Appearance
Solid powder
SMILES
C[C@@H]1CN(C[C@@H](N1)C)C(=O)C2=CC=C(C=C2)NC(=O)C3=NN=C(C(=C3)O[C@H](C)C4=C(C=CC(=C4Cl)F)Cl)N
InChi Key
GLYMPHUVMRFTFV-QLFBSQMISA-N
InChi Code
InChI=1S/C26H27Cl2FN6O3/c1-13-11-35(12-14(2)31-13)26(37)16-4-6-17(7-5-16)32-25(36)20-10-21(24(30)34-33-20)38-15(3)22-18(27)8-9-19(29)23(22)28/h4-10,13-15,31H,11-12H2,1-3H3,(H2,30,34)(H,32,36)/t13-,14+,15-/m1/s1
Chemical Name
6-amino-5-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy]-N-[4-[(3S,5R)-3,5-dimethylpiperazine-1-carbonyl]phenyl]pyridazine-3-carboxamide
Synonyms
X396; X-396; X 396
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: ~100 mg/mL (~178.1 mM)
Water: <1 mg/mL
Ethanol: ~100 mg/mL (~178.1 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 1.7811 mL 8.9057 mL 17.8113 mL
5 mM 0.3562 mL 1.7811 mL 3.5623 mL
10 mM 0.1781 mL 0.8906 mL 1.7811 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
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04837716 Active
Recruiting
Drug: Ensartinib
Drug: Carboplatin
Stage IIIC Lung Cancer AJCC v8
Stage IV Lung Cancer AJCC v8
M.D. Anderson Cancer Center March 18, 2021 Phase 1
NCT02767804 Active
Recruiting
Drug: X-396
(ensartinib)
Drug: crizotinib
Non-small Cell Lung Cancer Xcovery Holding Company, LLC June 2016 Phase 3
NCT05491811 Not yet recruiting Drug: Ensartinib
Drug: Bevacizumab
Non-Small Cell Lung Cancer Sun Yat-sen University August 2022 Phase 2
NCT05380024 Recruiting Drug: Ensartinib Non Small Cell Lung Cancer Peking University Cancer
Hospital & Institute
August 17, 2022 Phase 2
NCT05341583 Recruiting Drug: Ensartinib
Drug: Placebo
Non-small Cell Lung Cancer Betta Pharmaceuticals
Co., Ltd.
May 24, 2022 Phase 3
Biological Data

  • Ensartinib

    Potency of X-376 and X-396 in ALK mutant cell lines.2011 Jul 15;71(14):4920-31.

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    X-376 and X-396 effectively inhibit the growth of H3122 in vivo.2011 Jul 15;71(14):4920-31.

  • Ensartinib

    Effects of ALK TKIs against various ALK fusion variants and the EML4-ALK L1196M and C1156Y point mutations.2011 Jul 15;71(14):4920-31.
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