Razuprotafib

This drug entry is a stub and has not been fully annotated. It is scheduled to be annotated soon.

Identification

Generic Name
Razuprotafib
DrugBank Accession Number
DB16353
Background

Razuprotafib, also known as AKB-9778, is a small-molecule inhibitor restoring Tie2 activation by inhibiting VE-PTP.1,2 In investigations against diabetes and COVID-19, razuprotafib is self-administered by patients through subcutaneous injection.

Type
Small Molecule
Groups
Investigational
Structure
Weight
Average: 586.7
Monoisotopic: 586.101448095
Chemical Formula
C26H26N4O6S3
Synonyms
  • Razuprotafib
External IDs
  • AKB-9778
  • WHO 10271

Pharmacology

Indication

Not Available

Reduce drug development failure rates
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Contraindications & Blackbox Warnings
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Pharmacodynamics

Not Available

Mechanism of action

Razuprotafib inhibits VE-PTP (a negative regulator of Tie2 in diseased blood vessels) by binding and inhibiting the intracellular catalytic domain of VE-PTP that inactivates Tie2.1 This in turn allows razuprotafib to restore Tie2 activation to allow for enhancement of endothelial function and stabilization of blood vessels.2 Razuprotafib is being investigated against diabetic vascular complications and acute respiratory distress syndrome (ARDS) in COVID-19.

TargetActionsOrganism
AReceptor-type tyrosine-protein phosphatase beta
inhibitor
Humans
AAngiopoietin-1 receptor
activator
Humans
Absorption

Not Available

Volume of distribution

Not Available

Protein binding

Not Available

Metabolism
Not Available
Route of elimination

Not Available

Half-life

Not Available

Clearance

Not Available

Adverse Effects
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Toxicity

Not Available

Pathways
Not Available
Pharmacogenomic Effects/ADRs
Not Available

Interactions

Drug Interactions
This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
Not Available
Food Interactions
Not Available

Categories

Drug Categories
Classification
Not classified
Affected organisms
Not Available

Chemical Identifiers

UNII
0WAX4UT396
CAS number
1008510-37-9
InChI Key
KWJDHELCGJFUHW-SFTDATJTSA-N
InChI
InChI=1S/C26H26N4O6S3/c1-36-26(32)29-21(15-17-6-3-2-4-7-17)24(31)27-20(22-16-38-25(28-22)23-8-5-13-37-23)14-18-9-11-19(12-10-18)30-39(33,34)35/h2-13,16,20-21,30H,14-15H2,1H3,(H,27,31)(H,29,32)(H,33,34,35)/t20-,21-/m0/s1
IUPAC Name
N-{4-[(2S)-2-[(2S)-2-[(methoxycarbonyl)amino]-3-phenylpropanamido]-2-[2-(thiophen-2-yl)-1,3-thiazol-4-yl]ethyl]phenyl}sulfamic acid
SMILES
COC(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC1=CC=C(NS(O)(=O)=O)C=C1)C1=CSC(=N1)C1=CC=CS1

References

General References
  1. Aerpio Pharmaceuticals: Razuprotafib (AKB-9778) Diabetic Nephropathy [Link]
  2. Aerpio Pharmaceuticals: Razuprotafib COVID-19/ARDS [Link]
ChemSpider
59718647
ChEMBL
CHEMBL3931971

Clinical Trials

Clinical Trials
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PhaseStatusPurposeConditionsCountStart DateWhy Stopped100+ additional columns
2CompletedTreatmentDiabetic Macular Edema (DME)1somestatusstop reasonjust information to hide
2CompletedTreatmentNPDR - Non Proliferative Diabetic Retinopathy1somestatusstop reasonjust information to hide
2CompletedTreatmentOcular Hypertension / Ocular Hypertension, Primary Open-angle Glaucoma (POAG)1somestatusstop reasonjust information to hide
2CompletedTreatmentRetinal Vein Occlusion1somestatusstop reasonjust information to hide
2TerminatedTreatmentAcute Respiratory Distress Syndrome (ARDS) / Coronavirus Disease 2019 (COVID‑19)1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
Not Available
Packagers
Not Available
Dosage Forms
Not Available
Prices
Not Available
Patents
Not Available

Properties

State
Not Available
Experimental Properties
Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.00482 mg/mLALOGPS
logP2.64ALOGPS
logP1.65Chemaxon
logS-5.1ALOGPS
pKa (Strongest Acidic)-1.4Chemaxon
pKa (Strongest Basic)1.22Chemaxon
Physiological Charge-1Chemaxon
Hydrogen Acceptor Count6Chemaxon
Hydrogen Donor Count4Chemaxon
Polar Surface Area146.72 Å2Chemaxon
Rotatable Bond Count11Chemaxon
Refractivity157.23 m3·mol-1Chemaxon
Polarizability58.89 Å3Chemaxon
Number of Rings4Chemaxon
Bioavailability0Chemaxon
Rule of FiveNoChemaxon
Ghose FilterNoChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleYesChemaxon
Predicted ADMET Features
Not Available

Spectra

Mass Spec (NIST)
Not Available
Spectra
SpectrumSpectrum TypeSplash Key
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-004i-0001090000-3e78cd098d1b7cfc649a
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-004i-2300290000-ea470cdd1542b9959d8c
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-02u0-1915060000-c28102f5ba7cf068e77e
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0006-9204430000-fd70275060b9824045ef
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-07wc-4652910000-36b71f61ddea550695e5
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-00kg-6926220000-b0fe0c30e7db7662c6e6
Chromatographic Properties
Collision Cross Sections (CCS)
Not Available

Targets

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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Plays an important role in blood vessel remodeling and angiogenesis. Not necessary for the initial formation of blood vessels, but is essential for their maintenance and remodeling. Can induce dephosphorylation of TEK/TIE2, CDH5/VE-cadherin and KDR/VEGFR-2. Regulates angiopoietin-TIE2 signaling in endothelial cells. Acts as a negative regulator of TIE2, and controls TIE2 driven endothelial cell proliferation, which in turn affects blood vessel remodeling during embryonic development and determines blood vessel size during perinatal growth. Essential for the maintenance of endothelial cell contact integrity and for the adhesive function of VE-cadherin in endothelial cells and this requires the presence of plakoglobin (By similarity)
Specific Function
cadherin binding
Gene Name
PTPRB
Uniprot ID
P23467
Uniprot Name
Receptor-type tyrosine-protein phosphatase beta
Molecular Weight
224299.74 Da
References
  1. Aerpio Pharmaceuticals: Razuprotafib (AKB-9778) Diabetic Nephropathy [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Activator
General Function
Tyrosine-protein kinase that acts as a cell-surface receptor for ANGPT1, ANGPT2 and ANGPT4 and regulates angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton, but also maintenance of vascular quiescence. Has anti-inflammatory effects by preventing the leakage of pro-inflammatory plasma proteins and leukocytes from blood vessels. Required for normal angiogenesis and heart development during embryogenesis. Required for post-natal hematopoiesis. After birth, activates or inhibits angiogenesis, depending on the context. Inhibits angiogenesis and promotes vascular stability in quiescent vessels, where endothelial cells have tight contacts. In quiescent vessels, ANGPT1 oligomers recruit TEK to cell-cell contacts, forming complexes with TEK molecules from adjoining cells, and this leads to preferential activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascades. In migrating endothelial cells that lack cell-cell adhesions, ANGT1 recruits TEK to contacts with the extracellular matrix, leading to the formation of focal adhesion complexes, activation of PTK2/FAK and of the downstream kinases MAPK1/ERK2 and MAPK3/ERK1, and ultimately to the stimulation of sprouting angiogenesis. ANGPT1 signaling triggers receptor dimerization and autophosphorylation at specific tyrosine residues that then serve as binding sites for scaffold proteins and effectors. Signaling is modulated by ANGPT2 that has lower affinity for TEK, can promote TEK autophosphorylation in the absence of ANGPT1, but inhibits ANGPT1-mediated signaling by competing for the same binding site. Signaling is also modulated by formation of heterodimers with TIE1, and by proteolytic processing that gives rise to a soluble TEK extracellular domain. The soluble extracellular domain modulates signaling by functioning as decoy receptor for angiopoietins. TEK phosphorylates DOK2, GRB7, GRB14, PIK3R1; SHC1 and TIE1
Specific Function
ATP binding
Gene Name
TEK
Uniprot ID
Q02763
Uniprot Name
Angiopoietin-1 receptor
Molecular Weight
125829.005 Da
References
  1. Zhou Y, Zhang Y, Zhao D, Yu X, Shen X, Zhou Y, Wang S, Qiu Y, Chen Y, Zhu F: TTD: Therapeutic Target Database describing target druggability information. Nucleic Acids Res. 2024 Jan 5;52(D1):D1465-D1477. doi: 10.1093/nar/gkad751. [Article]

Drug created at December 15, 2020 22:05 / Updated at August 26, 2024 19:23