navacaprant   Click here for help

GtoPdb Ligand ID: 10452

Synonyms: BTRX-335140 | BTRX335140 | compound 58 [PMID: 30707578] | CYM-53093 | CYM53093 | NMRA-140 | NMRA-335140 | NMRA140
Compound class: Synthetic organic
Comment: Navacaprant (NMRA-140; formerly BTRX-335140, a.k.a. CYM-53093) is a selective κ opioid receptor antagonist [1]. It had favourable drug-like properties in preclinical models, and was proposed as a potential therapeutic for migraine [2], stress-related mood disorders (including depression), anxiety, and drug abuse. Neumora Therapeutics acquired BTRX-335140 in their buyout of Blackthorn Therapeutics. The chemical structure for NMRA-140 matches that for the INN navacaprant.
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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

navacaprant 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 5
Hydrogen bond donors 1
Rotatable bonds 5
Topological polar surface area 76.31
Molecular weight 453.25
XLogP 5.56
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 CCc1cc(F)c2c(c1)c(C)c(c(n2)N1CCC(CC1)NC1CCOCC1)c1onc(n1)C
Isomeric SMILES CCc1cc(F)c2c(c1)c(C)c(c(n2)N1CCC(CC1)NC1CCOCC1)c1onc(n1)C
InChI InChI=1S/C25H32FN5O2/c1-4-17-13-20-15(2)22(25-27-16(3)30-33-25)24(29-23(20)21(26)14-17)31-9-5-18(6-10-31)28-19-7-11-32-12-8-19/h13-14,18-19,28H,4-12H2,1-3H3
InChI Key CQOJHAJWCDJEAT-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
Navacaprant was advanced to clinical trials to evaluate safety and efficacy in major depressive disorder. Development for this indication was discontinued at phase 3 in early 2025, due to lack of efficacy compared to placebo.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT04221230 Study in Major Depressive Disorder With BTRX-335140 (NMRA-335140) vs Placebo Phase 2 Interventional BlackThorn Therapeutics, Inc.
NCT06029426 Study to Evaluate the Effects of Oral NMRA-335140 Versus Placebo in Participants With Major Depressive Disorder Phase 3 Interventional Neumora Therapeutics, Inc.