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leniolisib (CDZ 173) PI3K inhibitor

Cat.No.S8752

Leniolisib (CDZ 173) is a potent PI3Kδ selective inhibitor with biochemical IC50 values of 0.244, 0.424, 2.23 and 0.011 μM for PI3Kα, PI3Kβ, PI3Kγ and PI3Kδ, respectively.
leniolisib (CDZ 173) PI3K inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 450.46

Quality Control

Batch: S875201 DMSO]90 mg/mL]false]Ethanol]13 mg/mL]false]Water]Insoluble]false Purity: 99.47%
99.47

Chemical Information, Storage & Stability

Molecular Weight 450.46 Formula

C21H25F3N6O2

Storage (From the date of receipt) 3 years -20°C powder
CAS No. 1354690-24-6 -- Storage of Stock Solutions

Synonyms N/A Smiles CCC(=O)N1CCC(C1)NC2=NC=NC3=C2CN(CC3)C4=CC(=C(N=C4)OC)C(F)(F)F

Solubility

In vitro
Batch:

DMSO : 90 mg/mL ( (199.79 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 13 mg/mL

Water : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

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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.
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Mechanism of Action

Targets/IC50/Ki
PI3Kδ [1]
(Cell-free assay)
0.011 μM
PI3Kα [1]
(Cell-free assay)
0.244 μM
PI3Kβ [1]
(Cell-free assay)
0.424 μM
DNA-PK [1]
0.88 μM
DNA-PK [1]
(Cell-free assay)
0.88 μM
PI3Kγ [1]
(Cell-free assay)
2.23 μM
In vitro

In vitro, CDZ173 inhibits a large spectrum of immune cell functions, as demonstrated in B and T cells, neutrophils, monocytes, basophils, plasmocytoid dendritic cells, and mast cells. CDZ173 showed no activity up to the highest test concentration when tested against CYP isoform assays (3A3, 2D9, 2D6, 2C9), a panel of ion channels (including hERG) and a protease panel. In a panel of 50 safety related targets (GPCRs, ion channels, transporters), CDZ173 only showed measurable activity for hPDE4D (IC50 = 4.7 μM) and 5HT2B (IC50 = 7.7 μM)[1].

In vivo

In vivo, CDZ173 inhibits B cell activation in rats and monkeys in a concentration- and time-dependent manner. After prophylactic or therapeutic dosing, CDZ173 potently inhibited antigen-specific antibody production and reduced disease symptoms in a rat collagen-induced arthritis model. CDZ173 is absorbed very quickly across species as can be seen by an early Tmax of the oral profiles. Whereas clearance is low to moderate in rats and monkeys, it was found that clearance in dogs is very low resulting in a very high exposure in blood. Plasma protein binding in dogs is very high (>99%) and the distribution of the compound is restricted into tissue (Vss = 0.3 L/kg)[1].

References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06249997 Recruiting
APDS Gene Mutation
Pharming Technologies B.V.|Laboratory Corporation of America|Axial Biotech Inc|CMIC Co Ltd. Japan
August 3 2023 Phase 3
NCT05693129 Recruiting
APDS
Pharming Technologies B.V.|CMIC Co Ltd. Japan|Labcorp Central Laboratory|Fortrea|Aixial Group
August 30 2023 Phase 3
NCT05438407 Active not recruiting
APDS
Pharming Technologies B.V.|CMIC Co Ltd. Japan|Labcorp Central Laboratory|Fortrea|Aixial Group
February 1 2023 Phase 3
NCT02859727 Active not recruiting
Activated PI3Kdelta Syndrome (APDS); PASLI Disease
Pharming Technologies B.V.
September 8 2016 Phase 2|Phase 3
NCT02435173 Completed
Common Variable Immunodeficiency (CVID) APDS / PASLI
Novartis Pharmaceuticals|Novartis
August 24 2015 Phase 2|Phase 3

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