Naldemedine

Identification

Summary

Naldemedine is an opioid antagonist used to to treat opioid-induced constipation.

Brand Names
Symproic
Generic Name
Naldemedine
DrugBank Accession Number
DB11691
Background

Naldemedine is an opioid receptor antagonist Label. It is a modified form of Naltrexone to which a side chain has been added to increase molecular weight and polar surface area resulting in restricted transport across the blood brain barrier. Naldemedine was approved in 2017 in both the US and Japan for the treatment of Opioid-induced Constipation.

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 570.646
Monoisotopic: 570.247834831
Chemical Formula
C32H34N4O6
Synonyms
  • Naldemedine
External IDs
  • S-297995

Pharmacology

Indication

For the treatment of opioid-induced constipation Label.

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Treatment ofOpioid-induced constipation•••••••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Naldemedine is an opioid receptor antagonist with restricted movement across the blood brain barrier Label. This allows it to antagonize the periperal effects of opioid drugs such as constipation without interfering with the effects on the central nervous system.

Mechanism of action

Naldemedine binds to and antagonizes mu-, delta-, and kappa-opioid receptors Label. The binding of opioid agonists to peripheral mu-opioid receptors slows the transit of feces through the intestine resulting in constipation. By antagonizing mu-opioid receptors, naldemedine inhibits this effect.

TargetActionsOrganism
AMu-type opioid receptor
antagonist
Humans
ADelta-type opioid receptor
antagonist
Humans
AKappa-type opioid receptor
antagonist
Humans
Absorption

Tmax is 0.75 h Label. Administration with a high-fat meal reduces Cmax by 35% and increases Tmax to 2.5 h.

Volume of distribution

The apparent volume of disribution during the terminal phase is 155 L Label

Protein binding

Naldemedine is 93-94% bound to human plasma proteins Label.

Metabolism

Naldemedine is mainly metabolized to nor-naldemedine by CYP3A Label. Some metabolism to naldemedine-3-glucuronide occurs via UGT1A3. Both metabolites are acitive but less potent than naldemedine. The relative exposures of these metabolites are 9-13% and <3% for nor-naldemedine and naldemedine-3-glucuronide respectively. Naldemedine is also cleaved in the intestine to form benzamidine and naldemedine carboxylic acid.

Route of elimination

57% of naldemedine is excreted in the urine with 16-18% as the parent compound and 35% is excreted in the feces Label.

Half-life

The terminal elimination half life is 11 h Label.

Clearance

Not Available

Adverse Effects
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Toxicity

The most common adverse effects of naldemedine are abdominal pain (11%), diarrhea (7%), nausea (6%), vomiting (3%), and gastroenteritis (3%) Label.

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.
DrugInteraction
AbacavirAbacavir may decrease the excretion rate of Naldemedine which could result in a higher serum level.
AceclofenacAceclofenac may decrease the excretion rate of Naldemedine which could result in a higher serum level.
AcemetacinAcemetacin may decrease the excretion rate of Naldemedine which could result in a higher serum level.
AcetaminophenAcetaminophen may decrease the excretion rate of Naldemedine which could result in a higher serum level.
AcetazolamideAcetazolamide may increase the excretion rate of Naldemedine which could result in a lower serum level and potentially a reduction in efficacy.
Food Interactions
  • Avoid St. John's Wort. This herb induces CYP3A metabolism and may reduce serum levels of naldemedine.
  • Take with or without food.

Products

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Product Ingredients
IngredientUNIICASInChI Key
Naldemedine tosylateV1N8F1RVVO1345728-04-2WCYDLROFMZJJLE-RTMHEQJQSA-N
Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
RizmoicTablet, film coated200 mcgOralShionogi2020-12-16Not applicableEU flag
RizmoicTablet, film coated200 mcgOralShionogi2020-12-16Not applicableEU flag
RizmoicTablet, film coated200 mcgOralShionogi2020-12-21Not applicableEU flag
RizmoicTablet, film coated200 mcgOralShionogi2020-12-16Not applicableEU flag
RizmoicTablet, film coated200 mcgOralShionogi2020-12-16Not applicableEU flag

Categories

ATC Codes
A06AH05 — Naldemedine
Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as morphinans. These are polycyclic compounds with a four-ring skeleton with three condensed six-member rings forming a partially hydrogenated phenanthrene moiety, one of which is aromatic while the two others are alicyclic.
Kingdom
Organic compounds
Super Class
Alkaloids and derivatives
Class
Morphinans
Sub Class
Not Available
Direct Parent
Morphinans
Alternative Parents
Phenanthrenes and derivatives / Phenyloxadiazoles / Tetralins / Coumarans / 1-hydroxy-2-unsubstituted benzenoids / Alkyl aryl ethers / Aralkylamines / Piperidines / Benzene and substituted derivatives / Vinylogous acids
show 13 more
Substituents
1,2,4-oxadiazole / 1,2-aminoalcohol / 1-hydroxy-2-unsubstituted benzenoid / Alcohol / Alkyl aryl ether / Amine / Amino acid or derivatives / Aralkylamine / Aromatic heteropolycyclic compound / Azacycle
show 31 more
Molecular Framework
Aromatic heteropolycyclic compounds
External Descriptors
Not Available
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
03KSI6WLXH
CAS number
916072-89-4
InChI Key
AXQACEQYCPKDMV-RZAWKFBISA-N
InChI
InChI=1S/C32H34N4O6/c1-30(2,29-33-27(35-42-29)18-6-4-3-5-7-18)34-28(39)20-15-32(40)22-14-19-10-11-21(37)25-23(19)31(32,26(41-25)24(20)38)12-13-36(22)16-17-8-9-17/h3-7,10-11,17,22,26,37-38,40H,8-9,12-16H2,1-2H3,(H,34,39)/t22-,26+,31+,32-/m1/s1
IUPAC Name
(1S,5R,13R,17S)-4-(cyclopropylmethyl)-10,14,17-trihydroxy-N-[2-(3-phenyl-1,2,4-oxadiazol-5-yl)propan-2-yl]-12-oxa-4-azapentacyclo[9.6.1.0^{1,13}.0^{5,17}.0^{7,18}]octadeca-7,9,11(18),14-tetraene-15-carboxamide
SMILES
[H][C@@]12OC3=C4C(C[C@@]5([H])N(CC6CC6)CC[C@@]14[C@@]5(O)CC(C(=O)NC(C)(C)C1=NC(=NO1)C1=CC=CC=C1)=C2O)=CC=C3O

References

General References
  1. FDA Approved Drug Products: Symproic (naldemidine tosylate) tablets for oral use [Link]
PubChem Compound
54732242
PubChem Substance
347828056
ChemSpider
28530803
BindingDB
50503604
RxNav
1876597
ChEMBL
CHEMBL2105755
Wikipedia
Naldemedine
FDA label
Download (209 KB)

Clinical Trials

Clinical Trials
Clinical Trial & Rare Diseases Add-on Data Package
Explore 4,000+ rare diseases, orphan drugs & condition pairs, clinical trial why stopped data, & more. Preview package
PhaseStatusPurposeConditionsCountStart DateWhy Stopped100+ additional columns
Not AvailableRecruitingNot AvailableOpioid Induced Constipation (OIC)1somestatusstop reasonjust information to hide
3CompletedTreatmentOpioid Induced Constipation (OIC)3somestatusstop reasonjust information to hide
2CompletedTreatmentOpioid Induced Bowel Dysfunction1somestatusstop reasonjust information to hide
2CompletedTreatmentOpioid Induced Constipation (OIC)1somestatusstop reasonjust information to hide
2RecruitingTreatmentConstipation / Opioid Induced Bowel Dysfunction1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
Not Available
Packagers
Not Available
Dosage Forms
FormRouteStrength
Tablet, film coatedOral200 MCG
TabletOral.2 mg/1
TabletOral0.2 mg/1
Prices
Not Available
Patents
Patent NumberPediatric ExtensionApprovedExpires (estimated)Region
US9108975No2015-08-182031-11-11US flag
USRE46365No2017-04-112028-01-11US flag
USRE46375No2017-04-252026-10-05US flag
US10952968No2021-03-232033-05-13US flag

Properties

State
Not Available
Experimental Properties
PropertyValueSource
water solubilitySlightly solubleFDA Label
Predicted Properties
PropertyValueSource
Water Solubility0.227 mg/mLALOGPS
logP3.14ALOGPS
logP2.43Chemaxon
logS-3.4ALOGPS
pKa (Strongest Acidic)9.86Chemaxon
pKa (Strongest Basic)9.05Chemaxon
Physiological Charge1Chemaxon
Hydrogen Acceptor Count8Chemaxon
Hydrogen Donor Count4Chemaxon
Polar Surface Area141.18 Å2Chemaxon
Rotatable Bond Count6Chemaxon
Refractivity165.78 m3·mol-1Chemaxon
Polarizability61.34 Å3Chemaxon
Number of Rings8Chemaxon
Bioavailability1Chemaxon
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/MSsplash10-00di-0000090000-37252e4d5625bf1c973e
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-014i-0000290000-7394292c592c779d8d4b
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-0fmi-0010490000-81b8e2e107015c6680f1
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0uxr-0501190000-3cd03033d34d5f5c4ace
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-0kg9-9430580000-83e0fe224eb05ab575eb
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-0ue9-3931130000-93787b0c1e944052388f
Chromatographic Properties
Collision Cross Sections (CCS)
AdductCCS Value (Å2)Source typeSource
[M-H]-230.58621
predicted
DeepCCS 1.0 (2019)
[M+H]+232.57835
predicted
DeepCCS 1.0 (2019)
[M+Na]+238.31877
predicted
DeepCCS 1.0 (2019)

Targets

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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Antagonist
General Function
Receptor for endogenous opioids such as beta-endorphin and endomorphin (PubMed:10529478, PubMed:12589820, PubMed:7891175, PubMed:7905839, PubMed:7957926, PubMed:9689128). Receptor for natural and synthetic opioids including morphine, heroin, DAMGO, fentanyl, etorphine, buprenorphin and methadone (PubMed:10529478, PubMed:10836142, PubMed:12589820, PubMed:19300905, PubMed:7891175, PubMed:7905839, PubMed:7957926, PubMed:9689128). Also activated by enkephalin peptides, such as Met-enkephalin or Met-enkephalin-Arg-Phe, with higher affinity for Met-enkephalin-Arg-Phe (By similarity). Agonist binding to the receptor induces coupling to an inactive GDP-bound heterotrimeric G-protein complex and subsequent exchange of GDP for GTP in the G-protein alpha subunit leading to dissociation of the G-protein complex with the free GTP-bound G-protein alpha and the G-protein beta-gamma dimer activating downstream cellular effectors (PubMed:7905839). The agonist- and cell type-specific activity is predominantly coupled to pertussis toxin-sensitive G(i) and G(o) G alpha proteins, GNAI1, GNAI2, GNAI3 and GNAO1 isoforms Alpha-1 and Alpha-2, and to a lesser extent to pertussis toxin-insensitive G alpha proteins GNAZ and GNA15 (PubMed:12068084). They mediate an array of downstream cellular responses, including inhibition of adenylate cyclase activity and both N-type and L-type calcium channels, activation of inward rectifying potassium channels, mitogen-activated protein kinase (MAPK), phospholipase C (PLC), phosphoinositide/protein kinase (PKC), phosphoinositide 3-kinase (PI3K) and regulation of NF-kappa-B (By similarity). Also couples to adenylate cyclase stimulatory G alpha proteins (By similarity). The selective temporal coupling to G-proteins and subsequent signaling can be regulated by RGSZ proteins, such as RGS9, RGS17 and RGS4 (By similarity). Phosphorylation by members of the GPRK subfamily of Ser/Thr protein kinases and association with beta-arrestins is involved in short-term receptor desensitization (By similarity). Beta-arrestins associate with the GPRK-phosphorylated receptor and uncouple it from the G-protein thus terminating signal transduction (By similarity). The phosphorylated receptor is internalized through endocytosis via clathrin-coated pits which involves beta-arrestins (By similarity). The activation of the ERK pathway occurs either in a G-protein-dependent or a beta-arrestin-dependent manner and is regulated by agonist-specific receptor phosphorylation (By similarity). Acts as a class A G-protein coupled receptor (GPCR) which dissociates from beta-arrestin at or near the plasma membrane and undergoes rapid recycling (By similarity). Receptor down-regulation pathways are varying with the agonist and occur dependent or independent of G-protein coupling (By similarity). Endogenous ligands induce rapid desensitization, endocytosis and recycling (By similarity). Heterooligomerization with other GPCRs can modulate agonist binding, signaling and trafficking properties (By similarity)
Specific Function
beta-endorphin receptor activity
Gene Name
OPRM1
Uniprot ID
P35372
Uniprot Name
Mu-type opioid receptor
Molecular Weight
44778.855 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]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Antagonist
General Function
G-protein coupled receptor that functions as a receptor for endogenous enkephalins and for a subset of other opioids. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling leads to the inhibition of adenylate cyclase activity. Inhibits neurotransmitter release by reducing calcium ion currents and increasing potassium ion conductance. Plays a role in the perception of pain and in opiate-mediated analgesia. Plays a role in developing analgesic tolerance to morphine
Specific Function
G protein-coupled enkephalin receptor activity
Gene Name
OPRD1
Uniprot ID
P41143
Uniprot Name
Delta-type opioid receptor
Molecular Weight
40368.235 Da
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Antagonist
General Function
G-protein coupled opioid receptor that functions as a receptor for endogenous alpha-neoendorphins and dynorphins, but has low affinity for beta-endorphins. Also functions as a 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 the activity of down-stream effectors, such as adenylate cyclase. Signaling leads to the inhibition of adenylate cyclase activity. Inhibits neurotransmitter release by reducing calcium ion currents and increasing potassium ion conductance. Plays a role in the perception of pain. Plays a role in mediating reduced physical activity upon treatment with synthetic opioids. Plays a role in the regulation of salivation in response to synthetic opioids. May play a role in arousal and regulation of autonomic and neuroendocrine functions
Specific Function
dynorphin receptor activity
Gene Name
OPRK1
Uniprot ID
P41145
Uniprot Name
Kappa-type opioid receptor
Molecular Weight
42644.665 Da

Enzymes

Kind
Protein group
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
Specific Function
1,8-cineole 2-exo-monooxygenase activity

Components:
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
UDP-glucuronosyltransferase (UGT) that catalyzes phase II biotransformation reactions in which lipophilic substrates are conjugated with glucuronic acid to increase the metabolite's water solubility, thereby facilitating excretion into either the urine or bile (PubMed:15472229, PubMed:18674515, PubMed:18719240, PubMed:23288867, PubMed:23756265, PubMed:24641623). Essential for the elimination and detoxification of drugs, xenobiotics and endogenous compounds (PubMed:23756265). Catalyzes the glucuronidation of endogenous estrogen hormones such as estradiol and estrone (PubMed:15472229, PubMed:18719240, PubMed:23288867). Contributes to bile acid (BA) detoxification by catalyzing the glucuronidation of BA substrates, which are natural detergents for dietary lipids absorption (PubMed:23756265). Involved in the glucuronidation of calcidiol, which is the major circulating form of vitamin D3, essential for the regulation of calcium and phosphate homeostasis (PubMed:24641623). Involved in the glucuronidation of the AGTR1 angiotensin receptor antagonists losartan, candesartan and zolarsartan, which can inhibit the effect of angiotensin II (PubMed:18674515)
Specific Function
enzyme binding
Gene Name
UGT1A3
Uniprot ID
P35503
Uniprot Name
UDP-glucuronosyltransferase 1A3
Molecular Weight
60337.835 Da

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
Energy-dependent efflux transporter responsible for decreased drug accumulation in multidrug-resistant cells (PubMed:12960149, PubMed:15205344, PubMed:15899824, PubMed:22306008). Specifically present in limbal stem cells, where it plays a key role in corneal development and repair (By similarity)
Specific Function
ABC-type xenobiotic transporter activity
Gene Name
ABCB5
Uniprot ID
Q2M3G0
Uniprot Name
ATP-binding cassette sub-family B member 5
Molecular Weight
138639.48 Da

Drug created at October 20, 2016 20:40 / Updated at August 13, 2021 04:44