[CAS NO. 1396257-94-5]  Ipatasertibdihydrochloride

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PRODUCTS SPECIFICATIONS [1396257-94-5]

Catelog
HY-15186A
Brand
MCE
CAS
1396257-94-5

DESCRIPTION [1396257-94-5]

Overview

MDL-
Molecular Weight530.92
Molecular FormulaC24H34Cl3N5O2
SMILESClC1=CC=C([C@@H](CNC(C)C)C(N2CCN(C3=C([C@H](C)C[C@H]4O)C4=NC=N3)CC2)=O)C=C1.[H]Cl.[H]Cl

For research use only. We do not sell to patients.


Summary

Ipatasertib dihydrochloride (GDC-0068 dihydrochloride) is a highly selective and ATP-competitive pan-Akt inhibitor with IC 50 s of 5, 18 and 8 nM for Akt1 , Akt2 and Akt3 , respectively.


IC50 & Target

Akt1

5 nM (IC 50 )

Akt3

8 nM (IC 50 )

Akt2

18 nM (IC 50 )

PKA

3100 nM (IC 50 )


In Vitro

Ipatasertib shows more than 600 and more than 100-fold selectivity for Akt1 in IC 50 against the closely related kinases PKA and p70S6K, respectively. When tested at 1 μM in a panel of 230 protein kinases, which includes 36 human AGC family members, Ipatasertib inhibits only 3 other kinases by more than 70% at 1 μM concentration (PRKG1α, PRKG1β, and p70S6K). IC 50 s measured for these 3 kinases are 98, 69, and 860 nM, respectively. Thus, with the exception of PKG1 (relative to which Ipatasertib is >10-fold more selective for Akt1), Ipatasertib displays a more than 100-fold selectivity for Akt1 over the next most potently inhibited non-Akt kinase, p70S6K, in the screening kinase panel. The relationship between pharmacokinetics (PK) and pharmacodynamics (PD) of Ipatasertib is investigated in 3 xenograft models that showed dose-dependent response to drug treatment: MCF7-neo/HER2, TOV-21G.x1, and LNCaP. The mean cell viability IC 50 of Ipatasertib in these 3 cell lines is 2.56, 0.44, and 0.11 μM, respectively [2] .

MCE has not independently confirmed the accuracy of these methods. They are for reference only.


In Vivo

Ipatasertib is typically efficacious in xenograft models in which Akt is activated because of genetic alterations including PTEN loss, PIK3CA mutations/amplifications, or HER2 overexpression. In these models, tumor growth delay, stasis, or regression is achieved at or below 100 mg/kg daily oral dose, which is the maximum dose tested in immunocompromised mice that is well tolerated. When tested in vivo, daily dosing of Ipatasertib in combination with RP-56976 induces tumor regression and stasis in the PC-3 and MCF7-neo/HER2 xenograft models, at doses where each single agent is ineffective or only causes modest tumor growth delay. Similarly, increased TGI is observed in the OVCAR3 ovarian cancer xenograft model when Ipatasertib is combined with NSC 241240. The combination of Ipatasertib with RP-56976 or NSC 241240 is tolerated with less than 5% body weight loss when compared with treatment with each chemotherapeutic agent alone [2] .

MCE has not independently confirmed the accuracy of these methods. They are for reference only.


Clinical Trial

NCT Number Sponsor Condition Start Date Phase
NCT04931342 Hoffmann-La Roche|GOG Foundation|European Network of Gynaecological Oncological Trial Groups (ENGOT)
Ovarian Cancer
October 7, 2021 Phase 2
NCT04920708 Royal Marsden NHS Foundation Trust|Pfizer|Hoffmann-La Roche
Metastatic Breast Cancer|ER&addition; Breast Cancer|Advanced Breast Cancer
August 2021 Phase 2
NCT04632992 Genentech, Inc.
Advanced Unresectable or Metastatic Solid Malignancy
January 13, 2021 Phase 2

Appearance

Solid


Shipping

Room temperature in continental US; may vary elsewhere.


Storage

4°C, sealed storage, away from moisture

* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)


Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL ( 188.35 mM ; Need ultrasonic)

H 2 O : ≥ 41 mg/mL ( 77.22 mM )

* "≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.8835 mL 9.4176 mL 18.8352 mL
5 mM 0.3767 mL 1.8835 mL 3.7670 mL
10 mM 0.1884 mL 0.9418 mL 1.8835 mL
* Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one: PBS

    Solubility: 16.67 mg/mL (31.40 mM); Clear solution; Need ultrasonic

  • 2.

    Add each solvent one by one: 5% DMSO >> 40% PEG300 >> 5% Tween-80 >> 50% saline

    Solubility: ≥ 3.88 mg/mL (7.31 mM); Clear solution

  • 3.

    Add each solvent one by one: 5% DMSO >> 95% (20% SBE-β-CD in saline)

    Solubility: ≥ 3.88 mg/mL (7.31 mM); Clear solution

  • 4.

    Add each solvent one by one: 10% DMSO >> 40% PEG300 >> 5% Tween-80 >> 45% saline

    Solubility: ≥ 2.08 mg/mL (3.92 mM); Clear solution

  • 5.

    Add each solvent one by one: 10% DMSO >> 90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (3.92 mM); Clear solution

  • 6.

    Add each solvent one by one: 10% DMSO >> 90% corn oil

    Solubility: ≥ 2.08 mg/mL (3.92 mM); Clear solution

* All of the co-solvents are available by MCE.