tolebrutinib   Click here for help

GtoPdb Ligand ID: 10625

Synonyms: BTK'168 | example 3 [WO2016196840A1] | PRN-2246 | PRN2246 | SAR442168
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Tolebrutinib (PRN2246; SAR442168) is an oral and selective small molecule inhibitor of the enzyme Bruton tyrosine kinase (BTK) [1]. It binds covalently and is brain-penetrant.
The chemical structure that was submitted to the WHO for the INN tolebrutinib is identical to that of example 3 in Principia Biopharma's patent WO2016196840A1 [2].
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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 4
Hydrogen bond donors 1
Rotatable bonds 6
Topological polar surface area 94.86
Molecular weight 455.2
XLogP 2.93
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 C=CC(=O)N1CCCC(C1)n1c(=O)n(c2c1ccnc2N)c1ccc(cc1)Oc1ccccc1
Isomeric SMILES C=CC(=O)N1CCC[C@H](C1)n1c(=O)n(c2c1ccnc2N)c1ccc(cc1)Oc1ccccc1
InChI InChI=1S/C26H25N5O3/c1-2-23(32)29-16-6-7-19(17-29)30-22-14-15-28-25(27)24(22)31(26(30)33)18-10-12-21(13-11-18)34-20-8-4-3-5-9-20/h2-5,8-15,19H,1,6-7,16-17H2,(H2,27,28)/t19-/m1/s1
InChI Key KOEUOFPEZFUWRF-LJQANCHMSA-N
No information available.
Summary of Clinical Use Click here for help
SAR442168 was advanced to Phase 3 evaluations in patients with multiple sclerosis. Clinical studies were placed on partial hold by the FDA in June 2022 over concerns of hepatotoxicity, and this led to discontinuation of this programme in early 2023.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT04410978 Relapsing Forms of Multiple Sclerosis (RMS) Study of Bruton's Tyrosine Kinase (BTK) Inhibitor SAR442168 Phase 3 Interventional Sanofi
NCT04458051 Primary Progressive Multiple Sclerosis (PPMS) Study of Bruton's Tyrosine Kinase (BTK) Inhibitor SAR442168 (PERSEUS) Phase 3 Interventional Sanofi
NCT04411641 Nonrelapsing Secondary Progressive Multiple Sclerosis (NRSPMS) Study of Bruton's Tyrosine Kinase (BTK) Inhibitor SAR442168 Phase 3 Interventional Sanofi