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belumosudil   Click here for help

GtoPdb Ligand ID: 9558

Synonyms: KD-025 | KD025 | Rezurock® | SLx 2119 | SLx2119
Approved drug PDB Ligand Immunopharmacology Ligand
belumosudil is an approved drug
Compound class: Synthetic organic
Comment: Belumosudil (KD025) is an oral and selective inhbitor of Rho associated coiled-coil containing protein kinase 2 (ROCK2) [1], with clinical anti-inflammatory/immunomodulatory activity.
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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

belumosudil is commercially available from our sponsors

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 Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). 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 6
Hydrogen bond donors 3
Rotatable bonds 8
Topological polar surface area 104.82
Molecular weight 452.2
XLogP 5.15
No. Lipinski's rules broken 1

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
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.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CC(NC(=O)COc1cccc(c1)c1nc(Nc2ccc3c(c2)cn[nH]3)c2c(n1)cccc2)C
Isomeric SMILES CC(NC(=O)COc1cccc(c1)c1nc(Nc2ccc3c(c2)cn[nH]3)c2c(n1)cccc2)C
InChI InChI=1S/C26H24N6O2/c1-16(2)28-24(33)15-34-20-7-5-6-17(13-20)25-30-23-9-4-3-8-21(23)26(31-25)29-19-10-11-22-18(12-19)14-27-32-22/h3-14,16H,15H2,1-2H3,(H,27,32)(H,28,33)(H,29,30,31)
InChI Key GKHIVNAUVKXIIY-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
No information available.
Summary of Clinical Use Click here for help
Belumosudil (KD025) was evaluated in clinical studies for immunosuppressive, anti-inflammatory and anti-fibrotic efficacy. The FDA approved belumosudil (Rezurock®) in July 2021, as a third-line treatment for chronic graft-versus-host disease. EMA approval for this indication was granted in March 2026.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT03919799 KD025 in Subjects With Diffuse Cutaneous Systemic Sclerosis Phase 2 Interventional Kadmon Corporation, LLC
NCT02688647 A Study to Evaluate the Safety, Tolerability, and Activity of KD025 in Subjects With Idiopathic Pulmonary Fibrosis Phase 2 Interventional Kadmon Corporation, LLC
NCT02317627 Study of KD025 in Subjects With Psoriasis Vulgaris Who Failed First-Line Therapy Phase 2 Interventional Kadmon Corporation, LLC
NCT02841995 A Study to Evaluate the Safety, Tolerability, and Activity of KD025 in Subjects With Chronic Graft Versus Host Disease Phase 2 Interventional Kadmon Corporation, LLC The KD025-208 study
NCT05305989 Extended Treatment and Follow-up of Subjects Treated With Belumosudil in Study KD025-208 or Study KD025-213 Phase 2 Interventional Sanofi The KD025-217 study 4
NCT03640481 Efficacy and Safety of KD025 in Subjects With cGVHD After At Least 2 Prior Lines of Systemic Therapy Phase 2 Interventional Sanofi The KD025-213 (ROCKstar) study
External links Click here for help
For extended ADME data see the following:

Drugs.com