Azimilide

Identification

Generic Name
Azimilide
博士ugBank Accession Number
DB04957
Background

Azimilide is an investigational class III anti-arrhythmic drug that blocks fast and slow components of the delayed rectifier cardiac potassium channels. It is not approved for use in any country, but is currently in clinical trials in the United States.

Type
Small Molecule
Groups
Investigational
Structure
Weight
Average: 457.96
Monoisotopic: 457.1880675
Chemical Formula
C23H28ClN5O3
Synonyms
  • Azimilide

Pharmacology

Indication

Investigated for use/treatment in arrhythmia and atrial fibrillation.

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Contraindications & Blackbox Warnings
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Pharmacodynamics

Azimilide is a new class III anti-arrhythmic agent. It is distinguished by a relative lack of reverse use-dependence, excellent oral absorption, no need for dose titration, an option for out-patient initiation, no need for adjustment associated with renal or liver failure and a lack of interaction with warfarin or digoxin. It carries some risk of torsade de pointes and rarely, neutropoenia.

Mechanism of action

The mechanism of action of azimilide is to block both the slowly conducting (I(Ks)) and rapidly conducting (I(Kr)) rectifier potassium currents in cardiac cells. This differs from other class III agents that block I(Kr) exclusively or in combination with sodium, calcium, or transient outward (I(to)) potassium current channels. It also has blocking effects on sodium (I(Na)) and calcium currents (I(CaL)). Its effects on reentrant circuits in infarct border zones causing ventricular tachyarrhythmias are unknown.

Target Actions Organism
UPotassium voltage-gated channel subfamily E member 1 Not Available Humans
UPotassium voltage-gated channel subfamily KQT member 1 Not Available Humans
UPotassium voltage-gated channel subfamily H member 2 Not Available Humans
Absorption

优秀的口服吸收。

Volume of distribution

Not Available

Protein binding

Not Available

Metabolism

The metabolic fate of azimilide in man is unusual as it undergoes a cleavage in vivo resulting in the formation of two classes of structurally distinct metabolites. One study has shown that a cleaved metabolite, 4-chloro-2-phenyl furoic acid was present at high concentration in plasma, while other plasma metabolites, azimilide N-oxide, and a cleaved hydantoin metabolite were present at lower concentrations than azimilide. In urine, the cleaved metabolites were the major metabolites, (> 35% of the dose) along with phenols (as conjugates, 7%-8%), azimilide N-oxide (4%-10%), a butanoic acid metabolite (2%-3%), and desmethyl azimilide (2%). A limited investigation of fecal metabolites indicated that azimilide (3%-5%), desmethyl azimilide (1%-3%), and the butanoic acid metabolite (< 1%) were present. Contributing pathways for metabolism of azimilide, identified through in vitro and in-vivo studies, were CYPs 1A1 (est. 28%), 3A4/5 (est. 20%), 2D6 (< 1%), FMO (est. 14%), and cleavage (35%). Enzyme(s) involved in the cleavage of azimilide were not identified.

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/ADRsBrowse all" title="" id="snp-actions-info" class="drug-info-popup" href="javascript:void(0);">
Not Available

Interactions

博士ug InteractionsLearn More" title="" id="structured-interactions-info" class="drug-info-popup" href="javascript:void(0);">
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.
博士ug Interaction
Abametapir The serum concentration of Azimilide can be increased when it is combined with Abametapir.
Abatacept The metabolism of Azimilide can be increased when combined with Abatacept.
Acalabrutinib The metabolism of Azimilide can be decreased when combined with Acalabrutinib.
Acebutolol Acebutolol may increase the arrhythmogenic activities of Azimilide.
Acetyldigitoxin Acetyldigitoxin may increase the arrhythmogenic activities of Azimilide.
Acrivastine The risk or severity of QTc prolongation can be increased when Acrivastine is combined with Azimilide.
Adalimumab The metabolism of Azimilide can be increased when combined with Adalimumab.
Adenosine Adenosine may increase the arrhythmogenic activities of Azimilide.
Ajmaline Ajmaline may increase the arrhythmogenic activities of Azimilide.
Alfentanil The metabolism of Azimilide can be decreased when combined with Alfentanil.
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Food Interactions
Not Available

Products

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International/Other Brands
Stedicor

Categories

博士ug Categories
Chemical TaxonomyProvided byClassyfire
Description
This compound belongs to the class of organic compounds known as hydantoins. These are heterocyclic compounds containing an imidazolidine substituted by ketone group at positions 2 and 4.
Kingdom
Organic compounds
Super Class
Organoheterocyclic compounds
Class
Azolidines
Sub Class
Imidazolidines
Direct Parent
Hydantoins
Alternative Parents
Alpha amino acids and derivatives/N-methylpiperazines/Chlorobenzenes/Semicarbazones/Aryl chlorides/Heteroaromatic compounds/Furans/Dicarboximides/Trialkylamines/Organic carbonic acids and derivatives
show 7 more
Substituents
1,4-diazinane/Alpha-amino acid or derivatives/Amine/Amino acid or derivatives/Aromatic heteromonocyclic compound/Aryl chloride/Aryl halide/Azacycle/Benzenoid/Carbonic acid derivative
show 26 more
Molecular Framework
Aromatic heteromonocyclic compounds
External Descriptors
Not Available
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
74QU6P2934
CAS number
149908-53-2
InChI Key
MREBEPTUUMTTIA-UHFFFAOYSA-N
InChI
InChI=1S/C23H28ClN5O3/c1-26-12-14-27(15-13-26)10-2-3-11-28-22(30)17-29(23(28)31)25-16-20-8-9-21(32-20)18-4-6-19(24)7-5-18/h4-9,16H,2-3,10-15,17H2,1H3
IUPAC Name
1-({[5-(4-chlorophenyl)furan-2-yl]methylidene}amino)-3-[4-(4-methylpiperazin-1-yl)butyl]imidazolidine-2,4-dione
SMILES
CN1CCN(CCCCN2C(=O)CN(N=CC3=CC=C(O3)C3=CC=C(Cl)C=C3)C2=O)CC1

References

General References
  1. Schmitt H, Cabo C, Coromilas JC, Wit AL: Effects of azimilide, a new class III antiarrhythmic drug, on reentrant circuits causing ventricular tachycardia and fibrillation in a canine model of myocardial infarction. J Cardiovasc Electrophysiol. 2001 Sep;12(9):1025-33. [Article]
  2. Abrol R, Page RL: Azimilide dihydrochloride: a new class III anti-arrhythmic agent. Expert Opin Investig Drugs. 2000 Nov;9(11):2705-15. [Article]
  3. Tran HT: Azimilide dihydrochloride: a unique class III antiarrhythmic agent. Heart Dis. 1999 May-Jun;1(2):114-6. [Article]
  4. Toothaker RD, Corey AE, Valentine SN, Agnew JR, Parekh N, Moehrke W, Thompson GA, Powell JH: Influence of coadministration on the pharmacokinetics of azimilide dihydrochloride and digoxin. J Clin Pharmacol. 2005 Jul;45(7):773-80. [Article]
  5. Riley P, Figary PC, Entwisle JR, Roe AL, Thompson GA, Ohashi R, Ohashi N, Moorehead TJ: The metabolic profile of azimilide in man: in vivo and in vitro evaluations. J Pharm Sci. 2005 Sep;94(9):2084-95. [Article]
KEGG Compound
C13777
PubChem Compound
9571004
PubChem Substance
175426919
ChemSpider
54906
BindingDB
50117913
ZINC
ZINC000299888520
Wikipedia
Azimilide

Clinical Trials

Clinical TrialsLearn More" title="" id="clinical-trials-info" class="drug-info-popup" href="javascript:void(0);">
Phase Status Purpose Conditions Count
3 Terminated Treatment Arrhythmia/Cardiovascular Disease (CVD)/Implantable Cardioverter-defibrillators (ICDs) 1
2 Completed Treatment Congestive Heart Failure (CHF) 1

Pharmacoeconomics

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

Properties

State
固体
Experimental Properties
Not Available
Predicted Properties
Property Value Source
Water Solubility 0.0861 mg/mL ALOGPS
logP 2.91 ALOGPS
logP 2.59 Chemaxon
logS -3.7 ALOGPS
pKa (Strongest Acidic) 11.95 Chemaxon
pKa (Strongest Basic) 8.7 Chemaxon
Physiological Charge 1 Chemaxon
Hydrogen Acceptor Count 5 Chemaxon
Hydrogen Donor Count 0 Chemaxon
Polar Surface Area 72.6 Å2 Chemaxon
Rotatable Bond Count 8 Chemaxon
Refractivity 124.83 m3·mol-1 Chemaxon
Polarizability 50.15 Å3 Chemaxon
Number of Rings 4 Chemaxon
Bioavailability 1 Chemaxon
Rule of Five Yes Chemaxon
Ghose Filter Yes Chemaxon
Veber's Rule No Chemaxon
MDDR-like Rule Yes Chemaxon
Predicted ADMET Features
Property Value Probability
Human Intestinal Absorption + 1.0
Blood Brain Barrier + 0.9013
Caco-2 permeable - 0.5057
P-glycoprotein substrate Substrate 0.7072
P-glycoprotein inhibitor I Inhibitor 0.79
P-glycoprotein inhibitor II Non-inhibitor 0.5948
Renal organic cation transporter Inhibitor 0.614
CYP450 2C9 substrate Non-substrate 0.7463
CYP450 2D6 substrate Non-substrate 0.9116
CYP450 3A4 substrate Substrate 0.7085
CYP450 1A2 substrate Non-inhibitor 0.8317
CYP450 2C9 inhibitor Non-inhibitor 0.7377
CYP450 2D6 inhibitor Non-inhibitor 0.8987
CYP450 2C19 inhibitor Inhibitor 0.5383
CYP450 3A4 inhibitor Non-inhibitor 0.8177
CYP450 inhibitory promiscuity Low CYP Inhibitory Promiscuity 0.8234
Ames test AMES toxic 0.5429
Carcinogenicity Non-carcinogens 0.7114
Biodegradation Not ready biodegradable 0.9967
Rat acute toxicity 2.6412 LD50, mol/kg Not applicable
hERG inhibition (predictor I) Strong inhibitor 0.8037
hERG inhibition (predictor II) Inhibitor 0.5718
ADMET data is predicted usingadmetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Spectra

Mass Spec (NIST)
Not Available
Spectra
Spectrum Spectrum Type Splash Key
Predicted MS/MS Spectrum - 10V, Positive (Annotated) Predicted LC-MS/MS Not Available
Predicted MS/MS Spectrum - 20V, Positive (Annotated) Predicted LC-MS/MS Not Available
Predicted MS/MS Spectrum - 40V, Positive (Annotated) Predicted LC-MS/MS Not Available
Predicted MS/MS Spectrum - 10V, Negative (Annotated) Predicted LC-MS/MS Not Available
Predicted MS/MS Spectrum - 20V, Negative (Annotated) Predicted LC-MS/MS Not Available
Predicted MS/MS Spectrum - 40V, Negative (Annotated) Predicted LC-MS/MS Not Available

Targets

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Kind
Protein
Organism
Humans
Pharmacological action
Unknown
General Function
Telethonin binding
Specific Function
Ancillary protein that assembles as a beta subunit with a voltage-gated potassium channel complex of pore-forming alpha subunits. Modulates the gating kinetics and enhances stability of the channel...
Gene Name
KCNE1
Uniprot ID
P15382
Uniprot Name
Potassium voltage-gated channel subfamily E member 1
分子量
14674.66 Da
References
  1. Schmitt H, Cabo C, Coromilas JC, Wit AL: Effects of azimilide, a new class III antiarrhythmic drug, on reentrant circuits causing ventricular tachycardia and fibrillation in a canine model of myocardial infarction. J Cardiovasc Electrophysiol. 2001 Sep;12(9):1025-33. [Article]
  2. Abrol R, Page RL: Azimilide dihydrochloride: a new class III anti-arrhythmic agent. Expert Opin Investig Drugs. 2000 Nov;9(11):2705-15. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
General Function
Voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization
Specific Function
Potassium channel that plays an important role in a number of tissues, including heart, inner ear, stomach and colon (By similarity) (PubMed:10646604). Associates with KCNE beta subunits that modul...
Gene Name
KCNQ1
Uniprot ID
P51787
Uniprot Name
Potassium voltage-gated channel subfamily KQT member 1
分子量
74697.925 Da
References
  1. Schmitt H, Cabo C, Coromilas JC, Wit AL: Effects of azimilide, a new class III antiarrhythmic drug, on reentrant circuits causing ventricular tachycardia and fibrillation in a canine model of myocardial infarction. J Cardiovasc Electrophysiol. 2001 Sep;12(9):1025-33. [Article]
  2. Abrol R, Page RL: Azimilide dihydrochloride: a new class III anti-arrhythmic agent. Expert Opin Investig Drugs. 2000 Nov;9(11):2705-15. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
General Function
Voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization
Specific Function
Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel. Channel properties are modulated by cAMP and subunit assembly. Mediates the rapidly activating component of the ...
Gene Name
KCNH2
Uniprot ID
Q12809
Uniprot Name
Potassium voltage-gated channel subfamily H member 2
分子量
126653.52 Da
References
  1. Schmitt H, Cabo C, Coromilas JC, Wit AL: Effects of azimilide, a new class III antiarrhythmic drug, on reentrant circuits causing ventricular tachycardia and fibrillation in a canine model of myocardial infarction. J Cardiovasc Electrophysiol. 2001 Sep;12(9):1025-33. [Article]
  2. Abrol R, Page RL: Azimilide dihydrochloride: a new class III anti-arrhythmic agent. Expert Opin Investig Drugs. 2000 Nov;9(11):2705-15. [Article]

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Steroid hydroxylase activity
Specific Function
Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic...
Gene Name
CYP2D6
Uniprot ID
P10635
Uniprot Name
Cytochrome P450 2D6
分子量
55768.94 Da
References
  1. Riley P, Figary PC, Entwisle JR, Roe AL, Thompson GA, Ohashi R, Ohashi N, Moorehead TJ: The metabolic profile of azimilide in man: in vivo and in vitro evaluations. J Pharm Sci. 2005 Sep;94(9):2084-95. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Vitamin d 24-hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP1A1
Uniprot ID
P04798
Uniprot Name
细胞色素P450 1 a1
分子量
58164.815 Da
References
  1. Riley P, Figary PC, Entwisle JR, Roe AL, Thompson GA, Ohashi R, Ohashi N, Moorehead TJ: The metabolic profile of azimilide in man: in vivo and in vitro evaluations. J Pharm Sci. 2005 Sep;94(9):2084-95. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Vitamin d3 25-hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation react...
Gene Name
CYP3A4
Uniprot ID
P08684
Uniprot Name
Cytochrome P450 3A4
分子量
57342.67 Da
References
  1. Riley P, Figary PC, Entwisle JR, Roe AL, Thompson GA, Ohashi R, Ohashi N, Moorehead TJ: The metabolic profile of azimilide in man: in vivo and in vitro evaluations. J Pharm Sci. 2005 Sep;94(9):2084-95. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Oxygen binding
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP3A5
Uniprot ID
P20815
Uniprot Name
Cytochrome P450 3A5
分子量
57108.065 Da
References
  1. Riley P, Figary PC, Entwisle JR, Roe AL, Thompson GA, Ohashi R, Ohashi N, Moorehead TJ: The metabolic profile of azimilide in man: in vivo and in vitro evaluations. J Pharm Sci. 2005 Sep;94(9):2084-95. [Article]

博士ug created at October 21, 2007 22:23 / Updated at February 21, 2021 18:51