tapinarof   Click here for help

GtoPdb Ligand ID: 9686

Synonyms: GSK-2894512 | GSK2894512 [3] | Vtama® | WB-1001 | WBI 1001 | WBI-1001
Approved drug Immunopharmacology Ligand
tapinarof is an approved drug (FDA (2022))
Compound class: Synthetic organic
Comment: Tapinarof (GSK2894512) is an aryl hydrocarbon receptor (AhR) agonist [3]. It is a naturally occurring polyphenol derived from bacteria that exist symbiotically with entomopathogenic nematodes. AhR was identified as the primary molecular target based on phenotypic screening using the DiscoveRx BioMAP Diversity Plus System and confirmed using AhR knockout mice. Tapinarof was the first steroid-free topical drug in this class to be approved as a plaque psoriasis medication.
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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
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 CDK toolkit. 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 0
Hydrogen bond donors 2
Rotatable bonds 3
Topological polar surface area 40.46
Molecular weight 254.13
XLogP 5.04
No. Lipinski's rules broken 1
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.

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Canonical SMILES CC(c1c(O)cc(cc1O)C=Cc1ccccc1)C
Isomeric SMILES CC(c1c(O)cc(cc1O)/C=C/c1ccccc1)C
InChI InChI=1S/C17H18O2/c1-12(2)17-15(18)10-14(11-16(17)19)9-8-13-6-4-3-5-7-13/h3-12,18-19H,1-2H3/b9-8+
InChI Key ZISJNXNHJRQYJO-CMDGGOBGSA-N
No information available.
Summary of Clinical Use Click here for help
Topically applied tapinarof (research code GSK2894512) demonstrated clinical efficacy in Phase 2 and Phase 3 clinical trials in patients with plaque psoriasis (PS) [1-2]. Tapinarof has also completed Phase 1 studies for atopic dermatitis. The first FDA approval (May 2022) authorised use of tapinarof (Vtama®) as a treament for PS. Unlike steroid-based anti-inflammatory drugs that are used to treat PS, tapinarof has an unlimited duration of use and can be used on sensitive body areas.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
The AhR is a cytosolic ligand-activated transcription factor that senses a wide range of endogenous and exogenous molecules and influences multiple biological activities. IIn the immune system it acts as a regulator of innate and adaptive immune responses, impacting the balance of Th17 and Treg cells. Tapinarof modulates the immune response via an agonistic interaction with the AhR [3].
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT03983980 Tapinarof for the Treatment of Plaque Psoriasis in Adults (3002) Phase 3 Interventional Dermavant Sciences, Inc. 2
NCT03956355 Tapinarof for the Treatment of Plaque Psoriasis in Adults (3001) Phase 3 Interventional Dermavant Sciences, Inc. 2