petesicatib   Click here for help

GtoPdb Ligand ID: 9855

Synonyms: RG-7625 | RG7625 | RO-5459072
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Petesicatib is the INN for a cathepsin S inhibitor. The structure (and CAS registry number) submitted to the WHO match PubChem CID 59543597, and this ties the INN together with the research code RO5459072 assigned by Hoffman-La Roche to their cathepsin S inhibitor [2-3]. This same chemical structure is claimed in Hoffmann-La Roche patent WO2010121918A1, where it is example 238 [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 8
Hydrogen bond donors 1
Rotatable bonds 10
Topological polar surface area 133.54
Molecular weight 603.14
XLogP 2.97
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 N#CC1(CC1)NC(=O)C1CC(CN1C(=O)C1(CC1)C(F)(F)F)S(=O)(=O)c1ccc(cc1C(F)(F)F)c1cnn(c1)C
Isomeric SMILES N#CC1(CC1)NC(=O)[C@@H]1C[C@H](CN1C(=O)C1(CC1)C(F)(F)F)S(=O)(=O)c1ccc(cc1C(F)(F)F)c1cnn(c1)C
InChI InChI=1S/C25H23F6N5O4S/c1-35-11-15(10-33-35)14-2-3-19(17(8-14)24(26,27)28)41(39,40)16-9-18(20(37)34-22(13-32)4-5-22)36(12-16)21(38)23(6-7-23)25(29,30)31/h2-3,8,10-11,16,18H,4-7,9,12H2,1H3,(H,34,37)/t16-,18+/m1/s1
InChI Key KXAAIORSMACJSI-AEFFLSMTSA-N
Immunopharmacology Comments
Petesicatib causes a dose-dependent intracellular accumulation of invariant chain fragment (and cathepsin S substrate) Lip10 in B cells and myeloid dendritic cells in vitro (in human PBMCs ex vivo) and in vivo (in cynomolgus monkeys and in cells from human Phase 1 trial volunteers) [3], proving target engagement, and supporting Lip10 as a pharmacodynamic biomarker of cathepsin S inhibition.
Immunopharmacology Disease
Disease X-Refs Comment References
Sjögren's syndrome Orphanet: ORPHA378
 Completed Phase 2 evaluation in SS- see NCT02701985.
Celiac disease Disease Ontology: DOID:10608
 Completed Phase 1 evaluation in celiac patients- see NCT02679014.