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Nemiralisib PI3K inhibitor

Cat.No.S7937

Nemiralisib, also known as GSK-2269557, is a potent and selective PI3Kδ inhibitor(pKi = 9.9).
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Quality Control

Batch: S793701 DMSO]88 mg/mL]false]Ethanol]8 mg/mL]false]Water]Insoluble]false Purity: 99.99%
99.99

Solubility

In vitro
Batch:

DMSO : 88 mg/mL (199.75 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 8 mg/mL

Water : Insoluble

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In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

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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.

Chemical Information, Storage & Stability

Molecular Weight 440.54 Formula

C26H28N6O

Storage (From the date of receipt)
CAS No. 1254036-71-9 Download SDF Storage of Stock Solutions

Synonyms GSK2269557 SMILES CC(C)N1CCN(CC1)CC2=CN=C(O2)C3=C4C=NNC4=CC(=C3)C5=C6C=CNC6=CC=C5

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC50/Ki
PI3Kδ
(Cell-free assay)
9.9(pKi)
In vivo
GSK-2269557 has low oral bioavailability (F=2%) and in vivo clearance of 28 mL/min/kg but has a high volume of distribution of 6.3 L/kg. GSK-2269557 induces concentration-dependent increases in QT interval and Tp-e at 0.3 and 1 μM (1 and 0.5 Hz) and an increase in QRS at 1 μM (2 Hz), however, no treatment-related torsades de pointes (TdP) arrhythmias are observed. In a disease relevant brown Norway rat acute OVA model of Th2 driven lung inflammation, GSK-2269557 is shown to protect against eosinophil recruitment with an ED50 of 67 μg/kg and dose-dependently reduces recruitment of all leukocyte subpopulations and IL-13 in the lungs.
References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2021-06-18)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02593539 COMPLETED
Activated PI3K-delta Syndrome
GlaxoSmithKline
2016-07-22 PHASE2
NCT03345407 TERMINATED
Pulmonary Disease, Chronic Obstructive
GlaxoSmithKline
2017-11-28 PHASE2
NCT03398421 COMPLETED
Pulmonary Disease, Chronic Obstructive
GlaxoSmithKline
2018-01-17 PHASE1
NCT03398421 Completed
Pulmonary Disease Chronic Obstructive
GlaxoSmithKline
2018-01-17 Phase 1
NCT03189589 Completed
Pulmonary Disease Chronic Obstructive
GlaxoSmithKline
2017-06-15 Phase 1
NCT02972905 Completed
Pulmonary Disease Chronic Obstructive
GlaxoSmithKline
2016-10 Phase 1

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