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ABX-464

Alias: Obefazimod ObefazimodumObéfazimod ABX-464 ABX464 SPL464 ABX 464 SPL 464SPL-464
Cat No.:V10005 Purity: ≥98%
Obefazimod (ABX464) is a potent anti-HIV (Human Immunodeficiency Virus) agent.
ABX-464
ABX-464 Chemical Structure CAS No.: 1258453-75-6
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
Obefazimod (ABX464) is a potent anti-HIV (Human Immunodeficiency Virus) agent. Obefazimod inhibits HIV-1 replication in stimulated peripheral blood mononuclear cells (PBMCs) with IC50 of 0.1 μM to 0.5 μM.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
HIV-1 generation in PBMC and macrophage-infected cells is inhibited by obefazimod. When tested against all identified HIV-1 subtypes, including subtypes B, C, and recombinant viruses, obefazimod demonstrates a potent inhibitory effect. Additionally, ofazimod is particularly successful at preventing viral strains with mutations that give them resistance to various treatment drugs from replicating in vitro. While Obefazimod suppressed the K65R and M184V mutant strains, the antiviral medication 3TC was not very effective against them. In order to replicate the impact of Obefazimod on HIV-1 replication in additional primary cells, p24 antigen levels in the culture supernatants were tracked for a duration of 12 days after cells were treated with Obefazimod at concentrations ranging from 0.01 μM to 30 μM. Obefazimod, whose IC50 ranges from 0.1 μM to 1 μM, efficiently inhibits viral replication in a dose-dependent manner [1].
ln Vivo
The in vivo effectiveness of obazimod may be tested quickly, consistently, and reproducibly using humanized mice reconstituted with human lymphocytes. PBMC was used to reestablish SCID mice in an initial setup, and the HIV-1 strain JR-CSF was then introduced. For 15 days, mice were given 20 mg/kg of obefazimod orally twice a day (bid). Viral RNA measurements revealed that during the course of the 15-day treatment, oral obazimod medication considerably decreased the viral load. Blood samples were subjected to FACS analysis, which revealed that Obefazimod therapy prevented the recombinant mice's CD8+/CD4+ ratio from falling below that of uninfected mice following infection [1].
References

[1]. Long lasting control of viral rebound with a new drug ABX464 targeting Rev-mediated viral RNA biogenesis. Retrovirology. 2015 Apr 9;12:30.

Additional Infomation
ABX-464 is under investigation in clinical trial NCT03905109 (Safety Evaluation of ABX464 in Patients With Moderate to Severe Active Crohn's Disease).
Obefazimod is an orally available, small molecule binder of the cap binding complex (CBC) 80/20, with potential antiviral and anti-inflammatory activities. Upon oral administration, obefazimod binds to the CBC, a complex at the 5'-end of the pre-mRNA transcript that promotes the initial interaction with transcription and processing machinery. This leads to a conformational change in the CBC and enhanced splicing of viral RNA variants and upregulation of the anti-inflammatory microRNA, miR-124, via splicing of a long noncoding RNA at the miR-124-1 locus. In human immunodeficiency virus type 1 (HIV-1)-infected cells, obefazimod interacts with the CBC of HIV-1 mRNA and inhibits viral replication by preventing Rev-mediated export of unspliced HIV-1 transcripts to the cytoplasm. Rev facilitates the nuclear export of unspliced or incompletely spliced viral pre-mRNAs, an essential step in HIV-1 replication. In inflammatory conditions, miR-124 reduces the production of various inflammatory mediators, including interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-alpha), and C-C motif chemokine 2 (CCL2; MCP-1.). miR-124 plays a critical role in innate and adaptive immune responses and is a critical mediator of cholinergic anti-inflammatory action.
Drug Indication
Treatment of Crohn's disease, Treatment of ulcerative colitis
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C16H10CLF3N2O
Molecular Weight
338.71
Exact Mass
338.043
Elemental Analysis
C, 56.74; H, 2.98; Cl, 10.47; F, 16.83; N, 8.27; O, 4.72
CAS #
1258453-75-6
PubChem CID
49846599
Appearance
White to off-white solid powder
Density
1.4±0.1 g/cm3
Boiling Point
412.3±45.0 °C at 760 mmHg
Flash Point
203.2±28.7 °C
Vapour Pressure
0.0±1.0 mmHg at 25°C
Index of Refraction
1.629
LogP
4.21
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
3
Heavy Atom Count
23
Complexity
388
Defined Atom Stereocenter Count
0
SMILES
ClC1=CC=CC2=CC=C(N=C21)NC1C=CC(=CC=1)OC(F)(F)F
InChi Key
OZOGDCZJYVSUBR-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H10ClF3N2O/c17-13-3-1-2-10-4-9-14(22-15(10)13)21-11-5-7-12(8-6-11)23-16(18,19)20/h1-9H,(H,21,22)
Chemical Name
8-chloro-N-(4-(trifluoromethoxy)phenyl)quinolin-2-amine
Synonyms
Obefazimod ObefazimodumObéfazimod ABX-464 ABX464 SPL464 ABX 464 SPL 464SPL-464
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 (~295.24 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 3.75 mg/mL (11.07 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 37.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 3.75 mg/mL (11.07 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 37.5 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.9524 mL 14.7619 mL 29.5238 mL
5 mM 0.5905 mL 2.9524 mL 5.9048 mL
10 mM 0.2952 mL 1.4762 mL 2.9524 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:

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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.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT05177835 Active, not recruiting Drug: ABX464 Ulcerative Colitis Abivax S.A. December 3, 2021 Phase 2
NCT04049448 Completed Drug: ABX464 Rheumatoid Arthritis Abivax S.A. October 24, 2019 Phase 2
NCT05121714 Completed Drug: Caffeine
Drug: ABX464
Healthy Abivax S.A. December 17, 2020 Phase 1
NCT03093259 Completed Has Results Drug: ABX464
Drug: Placebo oral capsule
Ulcerative Colitis Abivax S.A. November 16, 2017 Phase 2
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