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Identification
NameCR665
Accession NumberDB05155
TypeSmall Molecule
GroupsInvestigational
Description

CR665 is the lead clinical development candidate from a series of highly selective peripheral kappa opioid receptor agonists. In preclinical studies, CR665 was highly selective for the peripheral kappa opioid receptor. Preclinical animal studies suggest that CR665 is a potent analgesic compound. In addition, unlike currently marketed opioids, CR665 does not produce inhibition of intestinal transit (ileus), induce respiratory depression, or elicit signs of euphoria or addiction in animal models. Preclinical studies also indicate that CR665 possesses anti-inflammatory activities.

Structure
Thumb
SynonymsNot Available
External Identifiers Not Available
Approved Prescription ProductsNot Available
Approved Generic Prescription ProductsNot Available
Approved Over the Counter ProductsNot Available
Unapproved/Other Products Not Available
International BrandsNot Available
Brand mixturesNot Available
SaltsNot Available
CategoriesNot Available
UNII3BX9UG06GG
CAS numberNot Available
WeightNot Available
Chemical FormulaNot Available
InChI KeyNot Available
InChINot Available
IUPAC NameNot Available
SMILESNot Available
Taxonomy
ClassificationNot classified
Pharmacology
IndicationInvestigated for use/treatment in pain (acute or chronic).
PharmacodynamicsNot Available
Mechanism of actionCR665 was highly selective for the peripheral kappa opioid receptor. It is intrinsically poor at penetrating the blood-brain barrier, which decreases the likelihood of CNS-mediated side effects. By acting with unprecedented selectivity at pain relieving receptors on peripheral nerves, and avoiding receptors in the central nervous system and gastrointestinal tract, CR665 has the potential to provide pain relief with minimal side effects.
Related Articles
AbsorptionNot Available
Volume of distributionNot Available
Protein bindingNot Available
MetabolismNot Available
Route of eliminationNot Available
Half lifeNot Available
ClearanceNot Available
ToxicityNot Available
Affected organismsNot Available
PathwaysNot Available
SNP Mediated EffectsNot Available
SNP Mediated Adverse Drug ReactionsNot Available
ADMET
Predicted ADMET features
PropertyValueProbability
Human Intestinal AbsorptionNot AvailableNot Available
Blood Brain BarrierNot AvailableNot Available
Caco-2 permeableNot AvailableNot Available
P-glycoprotein substrateNot AvailableNot Available
P-glycoprotein inhibitor INot AvailableNot Available
P-glycoprotein inhibitor IINot AvailableNot Available
Renal organic cation transporterNot AvailableNot Available
CYP450 2C9 substrateNot AvailableNot Available
CYP450 2D6 substrateNot AvailableNot Available
CYP450 3A4 substrateNot AvailableNot Available
CYP450 1A2 substrateNot AvailableNot Available
CYP450 2C9 inhibitorNot AvailableNot Available
CYP450 2D6 inhibitorNot AvailableNot Available
CYP450 2C19 inhibitorNot AvailableNot Available
CYP450 3A4 inhibitorNot AvailableNot Available
CYP450 inhibitory promiscuityNot AvailableNot Available
Ames testNot AvailableNot Available
CarcinogenicityNot AvailableNot Available
BiodegradationNot AvailableNot Available
Rat acute toxicityNot AvailableNot applicable
hERG inhibition (predictor I)Not AvailableNot Available
hERG inhibition (predictor II)Not AvailableNot Available
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397 )
Pharmacoeconomics
ManufacturersNot Available
PackagersNot Available
Dosage formsNot Available
PricesNot Available
PatentsNot Available
Properties
StateSolid
Experimental PropertiesNot Available
Predicted PropertiesNot Available
Spectra
Mass Spec (NIST)Not Available
Spectra
Spectrum TypeDescriptionSplash Key
References
Synthesis ReferenceNot Available
General ReferencesNot Available
External Links
ATC CodesNot Available
AHFS CodesNot Available
PDB EntriesNot Available
FDA labelNot Available
MSDSNot Available
Interactions
Drug InteractionsNot Available
Food InteractionsNot Available

Targets

Kind
Protein
Organism
Human
Pharmacological action
unknown
General Function:
Opioid receptor activity
Specific Function:
G-protein coupled opioid receptor that functions as receptor for endogenous alpha-neoendorphins and dynorphins, but has low affinity for beta-endorphins. Also functions as receptor for various synthetic opioids and for the psychoactive diterpene salvinorin A. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates th...
Gene Name:
OPRK1
Uniprot ID:
P41145
Molecular Weight:
42644.665 Da
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Drug created on October 21, 2007 16:23 / Updated on August 17, 2016 12:24