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Fosgonimeton (ATH-1017)

Alias: Fosgonimeton; ATH-1017; ATH1017; 2093305-05-4; Fosgonimeton [INN]; H91OA9858J; ATH 1017 FREE ACID;
Cat No.:V69302 Purity: ≥98%
Fosgonimeton (ATH-1017) is a hepatocyte growth factor receptor agonist (activator) (WO2017210489).
Fosgonimeton (ATH-1017)
Fosgonimeton (ATH-1017) Chemical Structure CAS No.: 2093305-05-4
Product category: c-MET
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
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Product Description
Fosgonimeton (ATH-1017) is a hepatocyte growth factor receptor agonist (activator) (WO2017210489).
Fosgonimeton (ATH-1017) is a highly specific, small-molecule positive modulator of the HGF/MET neurotrophic system. It is a prodrug that rapidly converts into the active metabolite ATH-1001 (dihexa) in plasma. As a hepatocyte growth factor receptor (c-Met/HGFR) agonist, it has neuroprotective effects. It demonstrates potential in Alzheimer's disease (AD) and dementia research.
Biological Activity I Assay Protocols (From Reference)
Targets
HGF Receptor[1]
Fosgonimeton targets the hepatocyte growth factor receptor (c-Met/HGFR). It acts as an agonist, enhancing the interaction of HGF with its receptor tyrosine kinase MET. This activation of the HGF/MET neurotrophic system reverses synaptic disconnection and neuronal loss. By modulating this pathway, it aims to improve dementia symptoms and potentially alter disease progression.
ln Vitro
Hepatocyte growth factor receptor agonist fosgonimeton[1].
In vitro, Fosgonimeton has demonstrated neuroprotective effects in both LPS-induced neuroinflammation and Aβ-induced AD models. Its activity is assessed in neuronal cell cultures subjected to these stress conditions. These studies confirm its ability to protect neurons from inflammatory and amyloid-beta-induced damage.
ln Vivo
agonist of the hepatocyte growth factor receptor
In vivo, Fosgonimeton has been studied in animal models of Alzheimer's disease. Its ability to cross the blood-brain barrier and enhance HGF/MET signaling supports its potential to reverse synaptic disconnection and neuronal loss. These studies provide evidence for its therapeutic potential in neurodegenerative diseases.
Enzyme Assay
Cell-free assays for Fosgonimeton typically involve measuring its binding affinity and agonist activity at the c-Met receptor. These assays may use recombinant c-Met protein in ELISA or SPR formats. Additionally, cell-free kinase activity assays are used to measure the compound's ability to stimulate c-Met autophosphorylation.
Cell Assay
In vitro cellular assays are conducted to evaluate the neuroprotective activity of Fosgonimeton. Neuronal cell lines or primary neurons are treated with the compound in the presence of inflammatory or amyloid-beta insults. Cell survival and markers of neuroinflammation are measured to assess the compound's protective effects.
Animal Protocol
In vivo animal experiments typically involve rodent models of Alzheimer's disease or other neurodegenerative conditions. Animals are administered Fosgonimeton. Cognitive function is assessed using behavioral tests, and markers of synaptic integrity and neuroinflammation are measured in brain tissues. These studies provide evidence for the compound's neuroprotective effects.
ADME/Pharmacokinetics
The pharmacokinetic properties of Fosgonimeton are characterized by its rapid conversion to the active metabolite ATH-1001 in plasma. This prodrug approach is designed to enhance the delivery and bioavailability of the active compound. Its ability to cross the blood-brain barrier is a key feature for its central nervous system activity.
Toxicity/Toxicokinetics
The toxicity profile of Fosgonimeton is not extensively documented but is likely to be favorable. As a small molecule modulator of the HGF/MET system, it is expected to have a targeted mechanism of action. Preclinical studies would typically involve acute and chronic dosing in animal models to assess safety margins.
References

[1]. WO2017210489. 2021.

Additional Infomation
Fosgonimeton is a small molecule drug. The clinical trial NCT05511558 ([14C]-fosgonimeton (ATH-1017) absorption, metabolism, and excretion study) is currently underway. The monoisotope molecular weight of fosgonimeton is 584.3 Da.
Fosgonimeton is a first-in-class HGF/MET modulator being developed for the treatment of Alzheimer's disease and dementia. It is a prodrug of ATH-1001 (dihexa). The compound has shown promise in preclinical studies and is being evaluated in clinical trials for its potential to improve cognitive function and modify disease progression.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H45N4O8P
Molecular Weight
584.6420
Exact Mass
584.297
CAS #
2093305-05-4
PubChem CID
156596375
Appearance
White to off-white solid powder
LogP
2.1
Hydrogen Bond Donor Count
6
Hydrogen Bond Acceptor Count
8
Rotatable Bond Count
20
Heavy Atom Count
40
Complexity
844
Defined Atom Stereocenter Count
3
SMILES
P(=O)(O[H])(O[H])OC1C([H])=C([H])C(=C([H])C=1[H])C([H])([H])[C@@]([H])(C(N([H])[C@]([H])(C(N([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C(N([H])[H])=O)=O)[C@@]([H])(C([H])([H])[H])C([H])([H])C([H])([H])[H])=O)N([H])C(C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])=O
InChi Key
MBYDCPOKVKDSFD-JTJYXVOQSA-N
InChi Code
InChI=1S/C27H45N4O8P/c1-4-6-8-12-24(33)30-22(18-20-13-15-21(16-14-20)39-40(36,37)38)26(34)31-25(19(3)5-2)27(35)29-17-10-7-9-11-23(28)32/h13-16,19,22,25H,4-12,17-18H2,1-3H3,(H2,28,32)(H,29,35)(H,30,33)(H,31,34)(H2,36,37,38)/t19-,22-,25-/m0/s1
Chemical Name
[4-[(2S)-3-[[(2S,3S)-1-[(6-amino-6-oxohexyl)amino]-3-methyl-1-oxopentan-2-yl]amino]-2-(hexanoylamino)-3-oxopropyl]phenyl] dihydrogen phosphate
Synonyms
Fosgonimeton; ATH-1017; ATH1017; 2093305-05-4; Fosgonimeton [INN]; H91OA9858J; ATH 1017 FREE ACID;
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

Note: (1). This product requires protection from light (avoid light exposure) during transportation and storage.  (2). Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
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: 125 mg/mL (213.81 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 1.7105 mL 8.5523 mL 17.1045 mL
5 mM 0.3421 mL 1.7105 mL 3.4209 mL
10 mM 0.1710 mL 0.8552 mL 1.7105 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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  • 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
Single and Multiple Ascending Dose Phase 1 Randomized Double-Blind Placebo-Controlled Study of Subcutaneous Fosgonimeton (ATH-1017) in Healthy Young/Elderly Volunteers and Mild Alzheimer’s Disease Subjects
CTID: NCT03298672
Phase: Phase 1
Status: Completed
Date: 2021-08-19
ACT-AD Phase 2 Randomized Double-Blind Placebo-Controlled Trial of Fosgonimeton to Assess ERP P300 Pharmacodynamic and Cognitive Changes in Mild to Moderate Alzheimer’s Disease
CTID: NCT04491006
Phase: Phase 2
Status: Completed
Date: 2022-05-12
LIFT-AD Multicenter Phase 2/3 Randomized Double-Blind Placebo-Controlled Trial of Once-Daily Subcutaneous Fosgonimeton 40mg for Mild to Moderate Alzheimer’s Disease
CTID: NCT04488419
Phase: Phase 2/3
Status: Completed
Date: 2024-10-15
OLEX Open-Label Long-Term Extension Safety Study of Fosgonimeton for Participants Completing LIFT-AD or ACT-AD Alzheimer’s Disease Trials
CTID: NCT04886063
Phase: Phase 2/3 Extension
Status: Completed
Date: 2024-10-28
SHAPE Phase 2 Open-Label Proof-of-Concept Trial of Subcutaneous Fosgonimeton in Patients With Parkinson’s Disease Dementia and Dementia With Lewy Bodies
CTID: NCT04831281
Phase: Phase 2
Status: Completed
Date: 2023-12-07
Preclinical Single-Dose Toxicokinetics and Brain Exposure Study of Subcutaneous Fosgonimeton in Cynomolgus Monkeys
CTID: Not Applicable
Phase: Preclinical In Vivo Toxicology Trial
Status: Completed
Date: Pre-2020
In Vitro Mechanism Assay of Fosgonimeton Potentiating HGF/MET Signaling to Promote Neuronal Survival and Synaptic Repair
CTID: Not Applicable
Phase: Preclinical Mechanism Research Trial
Status: Completed
Date: Pre-2019
Combination Preclinical Trial of Fosgonimeton Co-Administration With Anti-Aβ Monoclonal Antibody Lecanemab in AD Transgenic Mouse Model
CTID: Not Applicable
Phase: Preclinical Combination Efficacy Trial
Status: Completed
Date: 2024-05-21
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