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1mg |
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5mg |
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10mg |
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25mg |
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50mg |
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Other Sizes |
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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].
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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].
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References | |
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 |
Molecular Formula |
C16H10CLF3N2O
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Molecular Weight |
338.71
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Exact Mass |
338.043
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Elemental Analysis |
C, 56.74; H, 2.98; Cl, 10.47; F, 16.83; N, 8.27; O, 4.72
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CAS # |
1258453-75-6
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PubChem CID |
49846599
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Appearance |
White to off-white solid powder
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Density |
1.4±0.1 g/cm3
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Boiling Point |
412.3±45.0 °C at 760 mmHg
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Flash Point |
203.2±28.7 °C
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Vapour Pressure |
0.0±1.0 mmHg at 25°C
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Index of Refraction |
1.629
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LogP |
4.21
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Hydrogen Bond Donor Count |
1
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Hydrogen Bond Acceptor Count |
6
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Rotatable Bond Count |
3
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Heavy Atom Count |
23
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Complexity |
388
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Defined Atom Stereocenter Count |
0
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SMILES |
ClC1=CC=CC2=CC=C(N=C21)NC1C=CC(=CC=1)OC(F)(F)F
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InChi Key |
OZOGDCZJYVSUBR-UHFFFAOYSA-N
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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)
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Chemical Name |
8-chloro-N-(4-(trifluoromethoxy)phenyl)quinolin-2-amine
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Synonyms |
Obefazimod ObefazimodumObéfazimod ABX-464 ABX464 SPL464 ABX 464 SPL 464SPL-464
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HS Tariff Code |
2934.99.9001
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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)
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Solubility (In Vitro) |
DMSO : ≥ 100 mg/mL (~295.24 mM)
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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.
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.
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 |