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Afimetoran (BMS-986256)

Cat No.:V74343 Purity: ≥98%
Afimetoran is a toll-like receptor blocker (antagonist) that may be utilized in the research/study of inflammatory and autoimmune diseases.
Afimetoran (BMS-986256)
Afimetoran (BMS-986256) Chemical Structure CAS No.: 2171019-55-7
Product category: TLR
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
Other Sizes
Official Supplier of:
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Product Description
Afimetoran is a toll-like receptor blocker (antagonist) that may be utilized in the research/study of inflammatory and autoimmune diseases.
Biological Activity I Assay Protocols (From Reference)
References

[1]. POS1129 IN VITRO EVIDENCE DEMONSTRATES THAT AFIMETORAN (BMS-986256), AN EQUIPOTENT TLR7/8 DUAL ANTAGONIST, HAS STEROID-SPARING POTENTIAL IN THE CLINIC. 2023.

[2]. PO. 1.1 Afimetoran, a potent and selective inhibitor of human toll-like receptor 7 (TLR7) and tlr8, provides robust efficacy in a murine lupus model of advanced disease. 2022.

Additional Infomation
Afinmetolan is an immunomodulator and an antagonist of TLR 7 and 8. It is currently being investigated in the clinical trial NCT04269356 (a study evaluating the absorption, distribution, breakdown, and elimination of radioactive BMS-986256 in humans).
Mechanism of Action
Afinmetolan acts as an antagonist of TLR 7/8.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H32N6O
Molecular Weight
444.571885108948
Exact Mass
444.263
CAS #
2171019-55-7
PubChem CID
132271862
Appearance
White to off-white solid powder
LogP
3.9
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
5
Heavy Atom Count
33
Complexity
694
Defined Atom Stereocenter Count
0
SMILES
O=C(CN1CCC(C2C=CC3=C(C(C(C)C)=C(C4=CN5C(C(C)=C4C)=NC=N5)N3)C=2)CC1)N
InChi Key
SNFVHLQYHFQOEP-UHFFFAOYSA-N
InChi Code
InChI=1S/C26H32N6O/c1-15(2)24-20-11-19(18-7-9-31(10-8-18)13-23(27)33)5-6-22(20)30-25(24)21-12-32-26(28-14-29-32)17(4)16(21)3/h5-6,11-12,14-15,18,30H,7-10,13H2,1-4H3,(H2,27,33)
Chemical Name
2-[4-[2-(7,8-dimethyl-[1,2,4]triazolo[1,5-a]pyridin-6-yl)-3-propan-2-yl-1H-indol-5-yl]piperidin-1-yl]acetamide
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 (224.94 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.62 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 25.0 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: ≥ 2.5 mg/mL (5.62 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (5.62 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 25.0 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 2.2494 mL 11.2468 mL 22.4936 mL
5 mM 0.4499 mL 2.2494 mL 4.4987 mL
10 mM 0.2249 mL 1.1247 mL 2.2494 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

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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?
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  • 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:
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  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
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  • 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:
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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.

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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
Title:A Study Evaluating the Efficacy and Safety of Afimetoran Compared With Placebo in Participants With Active Systemic Lupus Erythematosus (SLE)
Status:Active, not recruiting
updateDate:2025-06-10
Ctid:NCT04895696

Link: https://clinicaltrials.gov/ct2/show/NCT04895696

Conditions:Systemic Lupus Erythematosus
Interventions:Afimetoran
Phase:Phase 2
Title:Study to Assess the Effect of Acid-reducing Agent Famotidine on the Drug Levels of BMS-986256 in Healthy Participants
Status:Completed
updateDate:2025-02-06
Ctid:NCT04470778

Link: https://clinicaltrials.gov/ct2/show/NCT04470778

Conditions:Healthy Participants
Interventions:Famotidine
Phase:Phase 1
Title:A Study to Assess the Effect of Famotidine on the Drug Levels of Afimetoran in Healthy Participants
Status:Recruiting
updateDate:2025-01-22
Ctid:NCT05866627

Link: https://clinicaltrials.gov/ct2/show/NCT05866627

Conditions:Healthy Volunteers
Interventions:Afimetoran
Phase:Phase 1
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Title:A Study to Assess the Effect of Phenytoin on the Drug Levels of Afimetoran and the Effect of Afimetoran on the Drug Levels of Midazolam
Status:Completed
updateDate:2024-08-07
Ctid:NCT05901714

Link: https://clinicaltrials.gov/ct2/show/NCT05901714

Conditions:Healthy Participants
Interventions:Midazolam
Phase:Phase 1
Title:A Study to Assess the Safety and Drug Levels of BMS-986256 in Participants With Active Cutaneous Lupus Erythematosus
Status:Completed
updateDate:2023-05-09
Ctid:NCT04493541

Link: https://clinicaltrials.gov/ct2/show/NCT04493541

Conditions:Lupus Erythematosus, Cutaneous
Interventions:BMS-986256
Phase:Phase 1
Title:A Study Measuring the Effectiveness of BMS-986256 Combined With Oral Contraceptive in Healthy Female Participants
Status:Completed
updateDate:2022-05-31
Ctid:NCT04016753

Link: https://clinicaltrials.gov/ct2/show/NCT04016753

Conditions:Healthy Participants
Interventions:Loestrin
Phase:Phase 1
Title:A Study to Determine the Effect of Famotidine on the Drug Levels of BMS-986256 in Healthy Participants
Status:Completed
updateDate:2022-01-21
Ctid:NCT04941755

Link: https://clinicaltrials.gov/ct2/show/NCT04941755

Conditions:Healthy Participants
Interventions:Famotidine
Phase:Phase 1
Title:Study to Assess the Way the Body Absorbs, Distributes, Breaks Down and Eliminates Radioactive BMS-986256 in Healthy Male Participants
Status:Completed
updateDate:2022-01-10
Ctid:NCT04269356

Link: https://clinicaltrials.gov/ct2/show/NCT04269356

Conditions:Healthy Participants
Interventions:Milk of magnesia
Phase:Phase 1
Title:Effects of BMS-986256 at Steady State on the Single Dose Pharmacokinetics of Mycophenolate Mofetil
Status:Completed
updateDate:2020-06-16
Ctid:NCT04039373

Link: https://clinicaltrials.gov/ct2/show/NCT04039373

Conditions:Healthy Participants
Interventions:Mycophenolate Mofetil
Phase:Phase 1
Title:An Investigational Study to Evaluate the Effects of Experimental Medication BMS-986256 in Healthy Participants
Status:Completed
updateDate:2020-06-16
Ctid:NCT03634995

Link: https://clinicaltrials.gov/ct2/show/NCT03634995

Conditions:Healthy Participants
Interventions:BMS-986256
Phase:Phase 1
Title:A Study to Investigate the Effects of Itraconazole on the Pharmacokinetics of BMS-986256 in Healthy Participants
Status:Completed
updateDate:2020-02-25
Ctid:NCT03950960

Link: https://clinicaltrials.gov/ct2/show/NCT03950960

Conditions:Healthy Participants
Interventions:Itraconazole
Phase:Phase 1

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