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Catalog No. T2588   CAS 873054-44-5
Synonyms: Ivacaftor (VX-770), VX-770, 依伐卡托

Ivacaftor (VX-770) is a potentiator of CFTR targeting G551D-CFTR (EC50: 100 nM) and F508del-CFTR (EC50: 25 nM) in Fisher rat thyroid cells, respectively.

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Ivacaftor, CAS 873054-44-5
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Biological Description
Chemical Properties
Storage & Solubility Information
Description Ivacaftor (VX-770) is a potentiator of CFTR targeting G551D-CFTR (EC50: 100 nM) and F508del-CFTR (EC50: 25 nM) in Fisher rat thyroid cells, respectively.
Targets&IC50 G551D-CFTR:100 nM(EC50, Fisher rat thyroid cells), F508del-CFTR:25 nM(EC50, Fisher rat thyroid cells)
In vitro VX-770 increased the forskolin-stimulated IT in temperature-corrected F508del-FRT cells by ~6-fold with an EC50 of 25 ± 5 nM. Before the addition of VX-770, the CFTR channel was exposed to maximally effective concentrations of PKA (75 nM) and ATP (1 mM). Under these conditions, 10 μM VX-770 increased the Po of G551D CFTR by ~6-fold [1]. HEK293 cells transiently expressing ABCB4-wt or the mutants were treated with 10 μmol/L of ivacaftor (VX-770), for 24 hours. Treatment with ivacaftor increased the PC secretion activity by 3-fold for ABCB4-G535D, 13.7-fold for ABCB4-G536R, 6.7-fold for ABCB4-S1076C, 9.4-fold for ABCB4-S1176L and 5.7-fold for ABCB4-G1178S [2].
In vivo In a rat dose proportionality study, the AUC and Cmax were increased linearly after oral administration of Ivacaftor in a suspension vehicle at doses from 1 to 200 mg/kg (3, 10, 30, and 100 were the intermediate doses). A similar trend was observed in beagle dogs increasing the oral dose from 3 to 80 mg/kg (10, 30, and 60 were the intermediate doses), confirming high levels of oral absorption. The predicted human hepatic clearance of Ivacaftor using allometric scaling from four species was 4.7 mL min?1 kg?1, which is approximately 23% of hepatic blood flow [3].
Cell Research HEK293 cells were seeded on poly-lysine precoated six-well plates at a density of 1.3 x 10^6 cells/well. Six hours after seeding, cells were transiently transfected with 1μg of ABCB4-encoding plasmids using Turbofect, following the manufacturer's instructions. Twenty-four hours post-transfection, cells were washed twice with HBSS, then the medium was replaced by phenol red-free DMEM containing 0.5 mmol/L sodium taurocholate and 0.02% fatty acid–free bovine serum albumin (BSA) in the presence or absence of 10 μmol/L of ivacaftor, 50 μM/L of UDCA, and 10 μmol/L of ivacaftor plus 50 μM/L of UDCA. Media were collected after 24 hours [2].
Animal Research Male mouse,Sprague?Dawley rats,beagle dog,and cynomolgus monkeys (n = 3/group) were administered a single iv dose of compound formulated in dimethyl isosorbide/ethanol/PEG400/5% dextrose in water (D5W) (10%/15%/35%/40%) at the nominal dose indicated in a dose volume of 1 mL/kg.Blood samples (0.3 mL,sodium heparin anticoagulant) were collected from an indwelling carotid cannula at the following nominal time points: at predose,5,15,30,and 45 min and 1,2,4,6,8,12,24,36,and 48 h following iv administration and at predose,0.25,0.50,1,1.5,2,4,8,12,and 24 h following oral administration.The concentration of compound in the plasma samples was determined with a liquid chromatography/tandem mass spectrometry (LC/MS/MS) method,which had a lowest limit of quantitation (LLOQ) of 1 ng/mL and a linearity range between 1 and 2500 ng/mL [3].
Synonyms Ivacaftor (VX-770), VX-770, 依伐卡托
Molecular Weight 392.499
Formula C24H28N2O3
CAS No. 873054-44-5


Powder: -20°C for 3 years

In solvent: -80°C for 2 years

Solubility Information

Ethanol: <1 mg/mL

H2O: <1 mg/mL

DMSO: 72 mg/mL (183.4 mM)

( < 1 mg/ml refers to the product slightly soluble or insoluble )

References and Literature

1. Van Goor F, et al. Rescue of CF airway epithelial cell function in vitro by a CFTR potentiator, VX-770. Proc Natl Acad Sci U S A. 2009 Nov 3;106(44):18825-30. 2. Delaunay JL, et al. Functional defect of variants in the adenosine triphosphate-binding sites of ABCB4 and their rescue by the cystic fibrosis transmembrane conductance regulator potentiator, ivacaftor (VX-770). Hepatology. 2017 Feb;65(2):560-570. 3. Hadida S, et al. Discovery of N-(2,4-di-tert-butyl-5-hydroxyphenyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide (VX-770, ivacaftor), a potent and orally bioavailable CFTR potentiator. J Med Chem. 2014 Dec 11;57(23):9776-9.


1. Sondo E, Cresta F, Pastorino C, et al. The L467F-F508del Complex Allele Hampers Pharmacological Rescue of Mutant CFTR by Elexacaftor/Tezacaftor/Ivacaftor in Cystic Fibrosis Patients: The Value of the Ex Vivo Nasal Epithelial Model to Address Non-Responders to CFTR-Modulating Drugs. International Journal of Molecular Sciences. 2022, 23(6): 3175.

Related compound libraries

This product is contained In the following compound libraries:
Anti-Cancer Compound Library Autophagy Compound Library Ion Channel Inhibitor Library Drug Repurposing Compound Library Anti-Cancer Approved Drug Library FDA-Approved Drug Library Anti-COVID-19 Compound Library CNS-Penetrant Compound Library Approved Drug Library Anti-Cancer Drug Library

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