bexotegrast   Click here for help

GtoPdb Ligand ID: 12108

Synonyms: PLN-74809 | PLN74809
Compound class: Synthetic organic
Comment: Bexotegrast (PLN-74809; Pliant Therapeutics) is a dual-selective integrin inhibitor/antagonist that was developed for anti-fibrosis potential [1]. The αv integrins regulate TGFβ activation (catalysing conversion of latent TGFβ isoforms to the active forms) and fibrogenesis in pulmonary fibrosis models [2-3], and αvβ6 and αvβ1 integrins are expressed on abnormal epithelial cells and fibroblasts (respectively) in human fibrotic lung tissue. By antagonising the function of both of these, bexotegrast restricts TGFβ activation and downstream signalling, which has been shown to promote an anti-fibrogenic effect in lung tissue samples from patients with idiopathic pulmonary fibrosis (IPF) [1].
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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 9
Hydrogen bond donors 3
Rotatable bonds 14
Topological polar surface area 112.5
Molecular weight 492.28
XLogP 0.8
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 COCCN(CC[C@@H](C(=O)O)Nc1ncnc2c1cccc2)CCCCc1ccc2c(n1)NCCC2
Isomeric SMILES COCCN(CCCCc1nc2c(CCCN2)cc1)CC[C@@H](C(=O)O)Nc1ncnc2ccccc12
InChI InChI=1S/C27H36N6O3/c1-36-18-17-33(15-5-4-8-21-12-11-20-7-6-14-28-25(20)31-21)16-13-24(27(34)35)32-26-22-9-2-3-10-23(22)29-19-30-26/h2-3,9-12,19,24H,4-8,13-18H2,1H3,(H,28,31)(H,34,35)(H,29,30,32)/t24-/m0/s1
InChI Key CWOFQJBATWQSHL-DEOSSOPVSA-N
No information available.
Summary of Clinical Use Click here for help
Bexotegrast (PLN-74809) has been advanced to phase 2 studies in participants with chronic fibrotic lung or liver diseases.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT04072315 Phase 2a Evaluation of PLN-74809 on αvβ6 Receptor Occupancy Using PET Imaging in Participants With IPF/ Phase 2 Interventional Pliant Therapeutics, Inc.
NCT04396756 Evaluation of Efficacy and Safety of PLN-74809 in Patients With Idiopathic Pulmonary Fibrosis Phase 2 Interventional Pliant Therapeutics, Inc.
NCT04480840 Phase 2a Evaluation of Safety, Tolerability, and Pharmacokinetics of PLN-74809 in Patients With Primary Sclerosing Cholangitis (PSC) Phase 2 Interventional Pliant Therapeutics, Inc.
NCT04565249 Evaluation of the Safety, Tolerability, and Pharmacokinetics of PLN-74809 in Participants With Acute Respiratory Distress Syndrome (ARDS) Associated With at Least Severe COVID-19 Phase 2 Interventional Pliant Therapeutics, Inc. This trial was terminated with only 6 volunteers recruited. Participants are no longer receiving treatment or being monitored.