ixazomib   Click here for help

GtoPdb Ligand ID: 8450

Synonyms: MLN-2238 | MLN2238 | Ninlaro®
Approved drug PDB Ligand
ixazomib is an approved drug (FDA (2015), EMA (2016))
Compound class: Synthetic organic
Comment: Ixazomib is the first approved oral proteasome inhibitor. Ixazomib reversibly inhibits 20S proteasome activity. Like bortezomib, ixazomib primarily inhibits the chymotrypsin-like (β5) proteolytic site within the 20S proteasome, but its pharmacokinetics, pharmacodynamics, and antitumor activity are superior to those of bortezomib [3].
Click here for help

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.

✖

View interactive charts of activity data across species
2D Structure
Click here for help

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.

✖
Click here for structure editor
Physico-chemical Properties
Click here for help

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.

✖
Hydrogen bond acceptors 6
Hydrogen bond donors 4
Rotatable bonds 9
Topological polar surface area 98.66
Molecular weight 360.08
XLogP 2.7
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
Click here for help

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.

✖
Canonical SMILES OB(C(NC(=O)CNC(=O)c1cc(Cl)ccc1Cl)CC(C)C)O
Isomeric SMILES OB([C@@H](NC(=O)CNC(=O)c1cc(Cl)ccc1Cl)CC(C)C)O
InChI InChI=1S/C14H19BCl2N2O4/c1-8(2)5-12(15(22)23)19-13(20)7-18-14(21)10-6-9(16)3-4-11(10)17/h3-4,6,8,12,22-23H,5,7H2,1-2H3,(H,18,21)(H,19,20)/t12-/m0/s1
InChI Key MXAYKZJJDUDWDS-LBPRGKRZSA-N
No information available.
Summary of Clinical Use Click here for help
Ixazomib is being evaluated in several Phase 3 clinical trials for MM [4], and a single Phase 3 trial for relapsed/refractory systemic light chain amyloidosis. Phase 1 and II trials for other hematological cancers and solid tumours [3] such as bladder cancer and renal cell carcinoma (RCC) are ongoing.
Both the European EMA and US FDA have formally recognised the relevance of this drug as a potential therapy for treating serious or life-threatening conditions, in particular systemic light-chain amyloidosis (AL amyloidosis), a condition for which there is currently no approved treatment. The EMA have granted ixazomib orphan drug status and the FDA have granted breakthrough therapy designation for AL amyloidosis.
Full US FDA marketing approval was granted in November 2015, for ixazomib to be used in combination with lenalidomide and dexamethasone to treat patients with MM who have received at least one prior therapy.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Ixazomib is a reversible inhibitor of the chymotrypsin-like activity of the 26S proteasome. Inhibitors of proteasome activity are antiproliferative and pro-apoptotic in nature. Proteasome inhibition leads to an increase in intracellular pro-apoptotic proteins, which promote cell-cycle arrest and cell-death [1]. Proteasome activity is reviewed in [2].
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)
Drugs.com
European Medicines Agency (EMA)