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ivacaftor   Click here for help

GtoPdb Ligand ID: 4342

Synonyms: compound 48 [PMID: 25441013] | Kalydeco® | VX-770
Approved drug PDB Ligand
ivacaftor is an approved drug (FDA and EMA (2012))
Compound class: Synthetic organic
Comment: Ivacaftor is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator [5,7], the net effect of which is increased chloride channel opening. It is an orally bioavailable small molecule that is effective in cystic fibrosis patients carrying a number of mutant CFTR forms, including F508del (a processing mutation) and CFTRG551D (a gating mutation).
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

IUPHAR Pharmacology Education Project (PEP) logo

View more information in the IUPHAR Pharmacology Education Project: ivacaftor

ivacaftor is commercially available from our sponsors

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 3
Hydrogen bond donors 3
Rotatable bonds 5
Topological polar surface area 82.19
Molecular weight 392.21
XLogP 6.93
No. Lipinski's rules broken 1

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES O=C(c1c[nH]c2c(c1=O)cccc2)Nc1cc(O)c(cc1C(C)(C)C)C(C)(C)C
Isomeric SMILES O=C(c1c[nH]c2c(c1=O)cccc2)Nc1cc(O)c(cc1C(C)(C)C)C(C)(C)C
InChI InChI=1S/C24H28N2O3/c1-23(2,3)16-11-17(24(4,5)6)20(27)12-19(16)26-22(29)15-13-25-18-10-8-7-9-14(18)21(15)28/h7-13,27H,1-6H3,(H,25,28)(H,26,29)
InChI Key PURKAOJPTOLRMP-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Selectivity at ion channels
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
CFTR Hs Activator Potentiation 8.5 pEC50 - 5
⤷ pEC50 8.5 (EC50 3x10-9 M) [5]
Description: Measuring ligand-induced changes in membrane potential due to CFTR-mediated, forskolin-stimulated chloride efflux
Targets where the ligand is described in the comment field
Target Comment
copper metabolism domain containing 1 COMMD1 is a multi-function protein that is involved in a range of biological processes, including copper homeostasis, regulation of protein localisation, regulation of NF-κB signaling, and it is proposed to be a component of the Cul2-RING ubiquitin ligase complex. A peptide that binds directly to COMMD1 (CIGB-552) has reported anti-tumour activity [3-4], and is also proposed to synergise with cystic fibrosis triple therapy Kaftrio (elexacaftor/tezacaftor/ivacaftor) to futher improve chloride transport via the cystic fibrosis CFTR-F508del protein variant. CIGB-552 is suggested to disrupt COMMD1-associated degradation of the misfolded mutated CFTR [1,6] and to enhance its localisation to the plasma membrane.