varespladib   Click here for help

GtoPdb Ligand ID: 9657

Synonyms: compound 6m [PMID: 8978844] | LY315920 | S-5920 | varespladib methyl (A-002) | varespladib sodium (A-001)
PDB Ligand Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Varespladib (LY315920) is a secretory phospholipase A2 (sPLA2) inhibitor [1-2] in clinical development. The administered form can be varespladib sodium (A-001, for intravenuous administration) or varespladib methyl (A-002, for oral administration). The history of varespladib's discovery and development is summarized in [3].
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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 5
Hydrogen bond donors 2
Rotatable bonds 8
Topological polar surface area 111.62
Molecular weight 380.14
XLogP 2.39
No. Lipinski's rules broken 0
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 CCc1c(C(=O)C(=O)N)c2c(n1Cc1ccccc1)cccc2OCC(=O)O
Isomeric SMILES CCc1c(C(=O)C(=O)N)c2c(n1Cc1ccccc1)cccc2OCC(=O)O
InChI InChI=1S/C21H20N2O5/c1-2-14-19(20(26)21(22)27)18-15(9-6-10-16(18)28-12-17(24)25)23(14)11-13-7-4-3-5-8-13/h3-10H,2,11-12H2,1H3,(H2,22,27)(H,24,25)
InChI Key BHLXTPHDSZUFHR-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
Varespladib completed Phase 2 clinical trial for acute coronary syndrome (ACS). A Phase 3 trial in ACS was terminated (NCT01130246), as was a Phase 2 trial for vaso-occlusive crisis in sickle cell disease (NCT01522196). Varespladib sodium's FDA orphan drug designation (ODD) for prevention of acute chest syndrome in at-risk patients with sickle cell disease has been withdrawn (link here to access the FDA's report for this ODD).
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Varespladib disrupts the first step of the arachidonic acid pathway of inflammation, and therefore has anti-inflammatory action.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT01130246 VISTA-16 Trial: Evaluation of Safety and Efficacy of Short-term A-002 Treatment in Subjects With Acute Coronary Syndrome Phase 3 Interventional Anthera Pharmaceuticals
NCT01522196 A Study of Varespladib Infusion in Subjects With Sickle Cell Disease. Phase 2 Interventional Anthera Pharmaceuticals