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Tenalisib PI3K inhibitor

Cat.No.S8672

Tenalisib is a potent and selective dual PI3Kδ/γ inhibitor with IC50 values of 24.5 nM and 33.2 nM for PI3Kδ and PI3Kγ, respectively. Its selectivity over α and β isoforms are more than 300-fold and 100-fold, respectively.
Tenalisib PI3K inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 415.42

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 415.42 Formula

C23H18FN5O2

Storage (From the date of receipt)
CAS No. 1639417-53-0 -- Storage of Stock Solutions

Synonyms RP6530 Smiles CCC(C1=C(C(=O)C2=CC=CC=C2O1)C3=CC(=CC=C3)F)NC4=NC=NC5=C4NC=N5

Solubility

In vitro
Batch:

DMSO : 50 mg/mL (120.36 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 14 mg/mL

Water : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

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
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Mechanism of Action

Targets/IC50/Ki
PI3Kδ [1]
(Cell-free assay)
24.5 nM
PI3Kγ [1]
(Cell-free assay)
33.2 nM
In vitro
RP6530 is a specific dual PI3K δ/γ inhibitor exhibiting several-fold selectivity against the other PI3K isoforms and 245-kinases. RP6530 causes a dose-dependent inhibition (>50% @ 2-7 μM) in growth of immortalized (Raji, TOLEDO, KG-1, JEKO, REC-1) B-cell lymphoma cells. Effect is more pronounced in the DLBCL cell lines, OCI-LY-1 and OCI-LY-10 (>50% inhibition @ 0.1-0.7 μM), and the reduction in viability is accompanied by corresponding inhibition of pAKT with EC50 of 6 & 70 nM respectively. Treatment of patient-derived primary cells with 4 µM RP6530 causes an increase in cell death. Cells in early apotosis (Annexin V+/PI-) are not different between the DMSO blank and RP6530 samples[1]. RP6530 shows potent inhibitory effect on cancer stem cells in ovarian cancer cell lines[2]. Treatment with 1 μM RP6530 results in G2/M arrest in MM-1S and MM-1R lines with very few cells in the SubG0 phase. It also results in a 70−90% inhibition of pAKT in MM-1S and MM-1R cell lines[3]. Potent modulation of inflammatory response by RP6530 contributes to control tumor microenvironment[1].
In vivo
The predicted T1/2, Cmax, and AUC0-t at 10 mg dose in human are 9.5 h, 14.0 μM, and 342.0 μM respectively. RP6530 has an excellent pharmacokinetic profile with plasma concentrations reaching well above the EC75 at doses as low as 3 mg/kg in rat and dog for 6-12 h. In addition, RP6530 shows >70 and >100% oral bioavailability with a half-life of 2 and 3 h in rat and dog respectively[1].
References

Clinical Trial Information

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

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06189209 Recruiting
Triple Negative Breast Cancer (TNBC)
Rhizen Pharmaceuticals SA|Incozen Therapeutics Pvt Ltd
March 4 2024 Phase 2
NCT03770000 Completed
T Cell Lymphoma
Rhizen Pharmaceuticals SA
March 12 2019 Phase 1|Phase 2
NCT03471351 Terminated
Classical Hodgkin Lymphoma
Rhizen Pharmaceuticals SA
July 18 2018 Phase 1
NCT02567656 Completed
Lymphoma T-Cell Peripheral|Lymphoma T-Cell Cutaneous
Rhizen Pharmaceuticals SA
September 2015 Phase 1
NCT02017613 Completed
Lymphoma B-Cell|T-Cell Lymphoma
Rhizen Pharmaceuticals SA
November 2013 Phase 1

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