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Darapladib

Name: Darapladib
Brand: Selleck Chemicals
SKU: S7520
Rating: 5 (7 reviews)

Synonyms: SB-480848

Catalog No.S7520 Purity:99.99%

Darapladib is a reversible lipoprotein-associated phospholipase A2 (Lp-PLA2) inhibitor with IC50 of 0.25 nM. Phase 3.

Darapladib Chemical Structure

CAS No. 356057-34-6

Purity & Quality Control

Batch: Purity: 99.99%

99.99

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Signaling Pathway

Phospholipase (e.g. PLA) Signaling Pathway

Cell Data

Cell Lines	Assay Type	Activity Description	PMID
KB-8-5-11	qHTS assay	P-glycoprotein substrates identified in KB-8-5-11 adenocarcinoma cell line, qHTS therapeutic library screen	31515284
KB-3-1	qHTS assay	P-glycoprotein substrates identified in KB-3-1 adenocarcinoma cell line, qHTS therapeutic library screen	31515284
Click to View More Cell Line Experimental Data

Biological Activity

Description

Darapladib is a reversible lipoprotein-associated phospholipase A2 (Lp-PLA2) inhibitor with IC50 of 0.25 nM. Phase 3.

Targets

Lp-PLA2 ^[1]
(Cell-free assay)

0.25 nM

In vitro
In vitro	During the copper catalysed oxidation of human LDL, Darapladib prevents the production of lyso-PtdCho with IC50 of 4 nM and subsequent monocyte chemotaxis with IC50 of 4 nM. ^[1]

In Vivo
In vivo	In the WHHL rabbits, Darapladib (30 mg/kg p.o.) exhibits excellent inhibition of Lp-PLA2 within the atherosclerotic plaque by 95%. ^[1] Darapladib, as an inhibitor of Lp-PLA2, reduces development of advanced coronary atherosclerosis in diabetic and hypercholesterolemic (DMHC) pigs. ^[2] In DMHC pigs, darapladib reduces the amount of IgG-immunopositive material that leaked into the brain and also the density of Aβ42-containing neurons. ^[3]
Animal Research	Animal Models	WHHL rabbits
	Dosages	~30 mg/kg
	Administration	p.o.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT02000804	Completed	Atherosclerosis	GlaxoSmithKline	October 23 2013	Phase 1
NCT01873339	Completed	Atherosclerosis	GlaxoSmithKline	June 19 2013	Phase 1
NCT01852565	Completed	Atherosclerosis	GlaxoSmithKline	May 14 2013	Phase 1
NCT01751074	Completed	Atherosclerosis	GlaxoSmithKline	December 17 2012	Phase 1
NCT01711723	Completed	Atherosclerosis	GlaxoSmithKline	October 29 2012	Phase 1
NCT01154114	Completed	Atherosclerosis	GlaxoSmithKline	July 1 2010	Phase 1

References

Chemical Information & Solubility

Molecular Weight	666.77	Formula	C₃₆H₃₈F₄N₄O₂S
CAS No.	356057-34-6	SDF	Download Darapladib SDF
Smiles	CCN(CC)CCN(CC1=CC=C(C=C1)C2=CC=C(C=C2)C(F)(F)F)C(=O)CN3C4=C(CCC4)C(=O)N=C3SCC5=CC=C(C=C5)F
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 100 mg/mL ( (149.97 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 100 mg/mL

Water : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.					In vivo Formulation Calculator
	Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	5.0mg/ml (7.50mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.	In vivo Formulation Calculator
Clear solution	5%DMSO 1 Corn oil	5.0mg/ml (7.50mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Clear solution	1% DMSO 1 40%PEG300 2 5%Tween80 3 54%ddH2O	1.0mg/ml (1.50mM)	Taking the 1 mL working solution as an example, add 10 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 540 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

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