Vamorolone

Identification

Summary

Vamorolone is a synthetic glucocorticoid used as an anti-inflammatory and immunosuppressant in the management of Duchenne muscular dystrophy (DMD).

Brand Names
Agamree
Generic Name
Vamorolone
DrugBank Accession Number
DB15114
Background

Vamorolone is a novel and fully synthetic glucocorticoid developed by Santhera Pharmaceuticals. It is used to manage inflammation and immune dysregulation in patients with Duchenne muscular dystrophy (DMD), a neuromuscular disorder characterized by the insidious regression of neuromuscular function and the most common form of muscular dystrophy in the United States.5 Corticosteroid therapy is the current standard of care for DMD despite relatively high rates of adverse effects.5 Vamorolone is positioned as having a more tolerable adverse effect profile than other corticosteroids owing to its unique receptor binding profile,1 thus providing an additional treatment option in patients for whom corticosteroid adverse effects are intolerable or otherwise unacceptable.5

Vamorolone was approved by the FDA in October 2023 for the management of DMD in patients ≥2 years of age.4,5 In December 2023, it was approved in the EU for the treatment of patients ≥4 years of age.7

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 356.462
Monoisotopic: 356.198759382
Chemical Formula
C22H28O4
Synonyms
  • Vamorolone
External IDs
  • VBP15

Pharmacology

Indication

Vamorolone is indicated for the treatment of Duchenne muscular dystrophy (DMD) in patients ≥2 years of age in the US4 and in patients ≥4 years of age in the EU.6

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Management ofDuchenne muscular dystrophy (dmd)••••••••••••••••••••••
Management ofDuchenne muscular dystrophy (dmd)••••••••••••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

In clinical studies, treatment with vamorolone induced a dose-dependent decrease in morning cortisol levels and a dose-dependent increase in leukocyte and lymphocyte counts.4

Mechanism of action

Vamorolone is a synthetic corticosteroid that acts as an agonist at the glucocorticoid receptor4 to exert anti-inflammatory and immunosuppressive effects. It is also an antagonist of the mineralocorticoid receptor.1 The precise mechanism by which vamorolone exerts its therapeutic effects in patients with DMD is unclear.

TargetActionsOrganism
UGlucocorticoid receptor
agonist
Humans
UMineralocorticoid receptor
antagonist
Humans
Absorption

Following oral administration with food, the median Tmax of vamorolone is approximately 2 hours.4

The co-administration of vamorolone with a high-fat, high-calorie meal reduced Cmax by 18%, increased AUC by 13%, and delayed Tmax by one hour. The co-administration of vamorolone with a low-fat, low-calorie meal reduced Cmax by 4%, increased AUC by 14%, and delayed Tmax by one hour.4

Volume of distribution

Based on population pharmacokinetic analysis, the apparent volume of distribution of vamorolone when administered with a meal to a 20 kg patient with DMD is 162 L.4

Protein binding

The in vitro protein binding of vamorolone is 88.1%.4

Metabolism

Vamorolone is subject to multiple metabolic pathways, including glucuronidation, hydroxylation, and reduction.4 Its metabolism is mediated through CYP3A4, CYP3A5, CYP2C8, UGT1A3, UGT2B7, and UGT2B17.4 Glucuronides - formed via direct glucuronidation and hydrogenation with subsequent glucuronidation - are the main metabolites in the plasma and urine.4

Route of elimination

Approximately 30% of a given vamorolone dose is excreted in the feces (15.4% as unchanged parent drug) and 48% is excreted in the urine (<1% as unchanged parent drug).4

Half-life

The terminal elimination half-life of vamorolone is approximately 2 hours. 4

Clearance

Based on population pharmacokinetic analysis, the clearance of vamorolone when administered with a meal to a 20 kg patient with DMD is 58 L/h.4

Adverse Effects
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Toxicity

Specific data regarding vamorolone overdosage are not readily available. Prescribing information recommends supportive and symptomatic treatment in the event of suspected vamorolone overdose, with consideration given to gastric lavage or emesis if clinically appropriate.4

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
AbametapirThe serum concentration of Vamorolone can be increased when it is combined with Abametapir.
AcarboseThe risk or severity of hyperglycemia can be increased when Vamorolone is combined with Acarbose.
AceclofenacThe risk or severity of gastrointestinal irritation can be increased when Vamorolone is combined with Aceclofenac.
AcemetacinThe risk or severity of gastrointestinal irritation can be increased when Vamorolone is combined with Acemetacin.
AcenocoumarolVamorolone may increase the anticoagulant activities of Acenocoumarol.
Food Interactions
  • Take with food. Prescribing information for vamorolone states that it should preferably be administered with food.

Products

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Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
AgamreeSuspension40 mg/1mLOralPurna Pharmaceuticals Nv2023-11-23Not applicableUS flag
AgamreeKit40 mg/1mLOralCatalyst Pharmaceuticals, Inc.2024-02-01Not applicableUS flag

Categories

Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as 21-hydroxysteroids. These are steroids carrying a hydroxyl group at the 21-position of the steroid backbone.
Kingdom
Organic compounds
Super Class
Lipids and lipid-like molecules
Class
Steroids and steroid derivatives
Sub Class
Hydroxysteroids
Direct Parent
21-hydroxysteroids
Alternative Parents
Gluco/mineralocorticoids, progestogins and derivatives / 20-oxosteroids / 3-oxo delta-1,4-steroids / 17-hydroxysteroids / Delta-1,4-steroids / Tertiary alcohols / Alpha-hydroxy ketones / Cyclic ketones / Cyclic alcohols and derivatives / Primary alcohols
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Substituents
17-hydroxysteroid / 20-oxosteroid / 21-hydroxysteroid / 3-oxo-delta-1,4-steroid / 3-oxosteroid / Alcohol / Aliphatic homopolycyclic compound / Alpha-hydroxy ketone / Carbonyl group / Cyclic alcohol
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Molecular Framework
Aliphatic homopolycyclic compounds
External Descriptors
Not Available
Affected organisms
  • Humans

Chemical Identifiers

UNII
8XP29XMB43
CAS number
13209-41-1
InChI Key
ZYTXTXAMMDTYDQ-DGEXFFLYSA-N
InChI
InChI=1S/C22H28O4/c1-13-10-18-16-5-4-14-11-15(24)6-8-20(14,2)17(16)7-9-21(18,3)22(13,26)19(25)12-23/h6-8,11,13,16,18,23,26H,4-5,9-10,12H2,1-3H3/t13-,16-,18+,20+,21+,22+/m1/s1
IUPAC Name
(1R,2R,3aS,3bS,9aS,11aS)-1-hydroxy-1-(2-hydroxyacetyl)-2,9a,11a-trimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,9aH,11H,11aH-cyclopenta[a]phenanthren-7-one
SMILES
C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)C3=CC[C@]2(C)[C@@]1(O)C(=O)CO

References

Synthesis Reference

Reeves EKM, Hoffman EP, Nagaraju K, Damsker JM, McCall JM: VBP15: preclinical characterization of a novel anti-inflammatory delta 9,11 steroid. Bioorg Med Chem. 2013 Apr 15;21(8):2241-2249. doi: 10.1016/j.bmc.2013.02.009. Epub 2013 Feb 18.

General References
  1. Heier CR, Yu Q, Fiorillo AA, Tully CB, Tucker A, Mazala DA, Uaesoontrachoon K, Srinivassane S, Damsker JM, Hoffman EP, Nagaraju K, Spurney CF: Vamorolone targets dual nuclear receptors to treat inflammation and dystrophic cardiomyopathy. Life Sci Alliance. 2019 Feb 11;2(1):e201800186. doi: 10.26508/lsa.201800186. Print 2019 Feb. [Article]
  2. Mavroudis PD, van den Anker J, Conklin LS, Damsker JM, Hoffman EP, Nagaraju K, Clemens PR, Jusko WJ: Population Pharmacokinetics of Vamorolone (VBP15) in Healthy Men and Boys With Duchenne Muscular Dystrophy. J Clin Pharmacol. 2019 Jul;59(7):979-988. doi: 10.1002/jcph.1388. Epub 2019 Feb 11. [Article]
  3. Reeves EKM, Hoffman EP, Nagaraju K, Damsker JM, McCall JM: VBP15: preclinical characterization of a novel anti-inflammatory delta 9,11 steroid. Bioorg Med Chem. 2013 Apr 15;21(8):2241-2249. doi: 10.1016/j.bmc.2013.02.009. Epub 2013 Feb 18. [Article]
  4. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
  5. American Journal of Managed Care: FDA Approves Vamorolone to Treat Duchenne Muscular Dystrophy [Link]
  6. EMA Summary of Product Characteristics: Agamree (vamorolone) suspension for oral administration [Link]
  7. EMA EPAR: Agamree (vamorolone) [Link]
ChemSpider
2299335
BindingDB
50432396
RxNav
2669799
ChEMBL
CHEMBL2348780
ZINC
ZINC000033650317
Wikipedia
Vamorolone

Clinical Trials

Clinical Trials
PhaseStatusPurposeConditionsCount
2CompletedTreatmentDuchenne Muscular Dystrophy (DMD)4
2RecruitingTreatmentBecker's Muscular Dystrophy (BMD)1
2RecruitingTreatmentDuchenne Muscular Dystrophy (DMD)1
1CompletedTreatmentHealthy Volunteers (HV)1
1, 2WithdrawnTreatmentUlcerative Colitis, Pediatric1

Pharmacoeconomics

Manufacturers
Not Available
Packagers
Not Available
Dosage Forms
FormRouteStrength
KitOral40 mg/1mL
SuspensionOral40 mg/1mL
Prices
Not Available
Patents
Patent NumberPediatric ExtensionApprovedExpires (estimated)Region
US11690853No2016-06-292036-06-29US flag
US11471471No2020-03-172040-03-17US flag
US10857161No2009-05-282029-05-28US flag
US8334279No2009-05-282029-05-28US flag
US11382922No2020-07-162040-07-16US flag
US11833159No2009-05-282029-05-28US flag

Properties

State
Solid
Experimental Properties
Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0246 mg/mLALOGPS
logP3.36ALOGPS
logP2.54Chemaxon
logS-4.2ALOGPS
pKa (Strongest Acidic)12.45Chemaxon
pKa (Strongest Basic)-3.3Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count4Chemaxon
Hydrogen Donor Count2Chemaxon
Polar Surface Area74.6 Å2Chemaxon
Rotatable Bond Count2Chemaxon
Refractivity102.22 m3·mol-1Chemaxon
Polarizability39.26 Å3Chemaxon
Number of Rings4Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
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/MSsplash10-0079-0129000000-b34dbb0ca596b9d266a6
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-004i-0009000000-1cf8956eb1952d19638a
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-004r-0093000000-74fb262914c711f1c327
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0a4m-9051000000-838f16d42f300ae44dce
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-0a4i-0059000000-4d54dac892c0fe2eabd6
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-00xs-0930000000-5f4eb2cdfff89704a24c
Predicted 1H NMR Spectrum1D NMRNot Applicable
Predicted 13C NMR Spectrum1D NMRNot Applicable
Chromatographic Properties
Collision Cross Sections (CCS)
Not Available

Targets

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Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Agonist
General Function
Zinc ion binding
Specific Function
Receptor for glucocorticoids (GC). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modula...
Gene Name
NR3C1
Uniprot ID
P04150
Uniprot Name
Glucocorticoid receptor
Molecular Weight
85658.57 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Antagonist
General Function
Zinc ion binding
Specific Function
Receptor for both mineralocorticoids (MC) such as aldosterone and glucocorticoids (GC) such as corticosterone or cortisol. Binds to mineralocorticoid response elements (MRE) and transactivates targ...
Gene Name
NR3C2
Uniprot ID
P08235
Uniprot Name
Mineralocorticoid receptor
Molecular Weight
107066.575 Da
References
  1. Heier CR, Yu Q, Fiorillo AA, Tully CB, Tucker A, Mazala DA, Uaesoontrachoon K, Srinivassane S, Damsker JM, Hoffman EP, Nagaraju K, Spurney CF: Vamorolone targets dual nuclear receptors to treat inflammation and dystrophic cardiomyopathy. Life Sci Alliance. 2019 Feb 11;2(1):e201800186. doi: 10.26508/lsa.201800186. Print 2019 Feb. [Article]

Enzymes

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
Inducer
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
Molecular Weight
57342.67 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
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
Molecular Weight
57108.065 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
Steroid 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
CYP2C8
Uniprot ID
P10632
Uniprot Name
Cytochrome P450 2C8
Molecular Weight
55824.275 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
Retinoic acid binding
Specific Function
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. Isoform 2 lacks transferase activity but acts as a negative reg...
Gene Name
UGT1A3
Uniprot ID
P35503
Uniprot Name
UDP-glucuronosyltransferase 1-3
Molecular Weight
60337.835 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
Glucuronosyltransferase activity
Specific Function
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds.Its unique specificity for 3,4-catechol estrogens and estriol su...
Gene Name
UGT2B7
Uniprot ID
P16662
Uniprot Name
UDP-glucuronosyltransferase 2B7
Molecular Weight
60694.12 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
General Function
Glucuronosyltransferase activity
Specific Function
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. The major substrates of this isozyme are eugenol > 4-methylumbe...
Gene Name
UGT2B17
Uniprot ID
O75795
Uniprot Name
UDP-glucuronosyltransferase 2B17
Molecular Weight
61094.915 Da
References
  1. FDA Approved Drug Products: Agamree (vamorolone) suspension for oral administration [Link]

Drug created at May 20, 2019 14:51 / Updated at January 10, 2024 06:22