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Record Information
Version2.0
Creation Date2014-09-11 05:15:07 UTC
Update Date2014-12-24 20:26:56 UTC
Accession NumberT3D4757
Identification
Common NameFulvestrant
ClassSmall Molecule
DescriptionFulvestrant is a drug treatment of hormone receptor-positive metastatic breast cancer in post-menopausal women with disease progression following anti-estrogen therapy. It is an estrogen receptor antagonist with no agonist effects, which works both by down-regulating and by degrading the estrogen receptor.
Compound Type
  • Antineoplastic Agent
  • Antineoplastic Agent, Hormonal
  • Drug
  • Estrogen Antagonist
  • Metabolite
  • Organic Compound
  • Organofluoride
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
Faslodex
ICI 182,780
Chemical FormulaC32H47F5O3S
Average Molecular Mass606.771 g/mol
Monoisotopic Mass606.317 g/mol
CAS Registry Number129453-61-8
IUPAC Name(1S,9R,11S,14S,15S)-15-methyl-9-[9-(4,4,5,5,5-pentafluoropentanesulfinyl)nonyl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-2,4,6-triene-5,14-diol
Traditional Namefaslodex(ici 182,780)
SMILES[H][C@]1(O)CC[C@@]2([H])C3([H])[C@]([H])(CCCCCCCCCS(=O)CCCC(F)(F)C(F)(F)F)CC4=CC(O)=CC=C4[C@@]3([H])CC[C@]12C
InChI IdentifierInChI=1S/C32H47F5O3S/c1-30-17-15-26-25-12-11-24(38)21-23(25)20-22(29(26)27(30)13-14-28(30)39)10-7-5-3-2-4-6-8-18-41(40)19-9-16-31(33,34)32(35,36)37/h11-12,21-22,26-29,38-39H,2-10,13-20H2,1H3/t22-,26-,27+,28+,29?,30+,41?/m1/s1
InChI KeyInChIKey=VWUXBMIQPBEWFH-LQKBAPIOSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassEstrane steroids
Direct ParentEstrogens and derivatives
Alternative Parents
Substituents
  • Estrogen-skeleton
  • 3-hydroxysteroid
  • 17-hydroxysteroid
  • Hydroxysteroid
  • Phenanthrene
  • Tetralin
  • 1-hydroxy-2-unsubstituted benzenoid
  • Benzenoid
  • Cyclic alcohol
  • Sulfoxide
  • Secondary alcohol
  • Sulfinyl compound
  • Organooxygen compound
  • Organofluoride
  • Organohalogen compound
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Alkyl halide
  • Alkyl fluoride
  • Alcohol
  • Organosulfur compound
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
Solubility6.72e-03 g/L
LogP8.9
Predicted Properties
PropertyValueSource
Water Solubility0.0067 g/LALOGPS
logP6.54ALOGPS
logP7.57ChemAxon
logS-5ALOGPS
pKa (Strongest Acidic)10.32ChemAxon
pKa (Strongest Basic)-0.88ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity155.34 m³·mol⁻¹ChemAxon
Polarizability65.64 ųChemAxon
Number of Rings4ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-08or-1435190000-ac0a296ce776ab03ad07JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-03di-5517759000-8aeb8c895093525bd51bJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_1) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS ("Fulvestrant,1TMS,#1" TMS) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-052r-0132295000-ef5f5c93e013c704e8b7JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-08fr-0749421000-c147033104043b965567JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03di-0924010000-bb9bcf231b1241b2903fJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0540649000-e293a1b739ec6e71041cJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-052b-4361911000-637e5739391e190c55e4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0002-9522300000-e3377ef73b716caff994JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0000039000-71d23dc80a26491f7445JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-003i-1020971000-f59364a4fd57cbcdc433JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0005-3361910000-57f1e34f3ddf874aceccJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0000009000-f4c3786f528a59579204JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4j-0000915000-1073e187bdb2ba6a68c8JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004j-1104901000-00561480fc85161becf6JSpectraViewer
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityFulvestrant competitively and reversibly binds to estrogen receptors present in cancer cells and achieves its anti-estrogen effects through two separate mechanisms. First, fulvestrant binds to the receptors and downregulates them so that estrogen is no longer able to bind to these receptors. Second, fulvestrant degrades the estrogen receptors to which it is bound. Both of these mechanisms inhibit the growth of tamoxifen-resistant as well as estrogen-sensitive human breast cancer cell lines.
MetabolismMetabolism of fulvestrant appears to involve combinations of a number of possible biotransformation pathways analogous to those of endogenous steroids, including oxidation, aromatic hydroxylation, conjugation with glucuronic acid and/or sulphate at the 2, 3 and 17 positions of the steroid nucleus, and oxidation of the side chain sulphoxide. Identified metabolites are either less active or exhibit similar activity to fulvestrant in antiestrogen models. Studies using human liver preparations and recombinant human enzymes indicate that cytochrome P-450 3A4 (CYP 3A4) is the only P-450 isoenzyme involved in the oxidation of fulvestrant; however, the relative contribution of P-450 and non-P-450 routes in vivo is unknown. Route of Elimination: Fulvestrant was rapidly cleared by the hepatobiliary route with excretion primarily via the feces (approximately 90%). Renal elimination was negligible (less than 1%). Half Life: 40 days
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor the treatment of hormone receptor positive metastatic breast cancer in postmenopausal women with disease progression following anti-estrogen therapy.
Minimum Risk LevelNot Available
Health EffectsThere is no clinical experience with overdosage in humans.
SymptomsNot Available
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00947
HMDB IDHMDB15082
PubChem Compound ID17756771
ChEMBL IDCHEMBL1358
ChemSpider ID21475029
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI ID31638
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkFulvestrant
References
Synthesis ReferenceNot Available
MSDST3D4757.pdf
General References
  1. Kansra S, Yamagata S, Sneade L, Foster L, Ben-Jonathan N: Differential effects of estrogen receptor antagonists on pituitary lactotroph proliferation and prolactin release. Mol Cell Endocrinol. 2005 Jul 15;239(1-2):27-36. [15950373 ]
  2. Kabos P, Borges VF: Fulvestrant: a unique antiendocrine agent for estrogen-sensitive breast cancer. Expert Opin Pharmacother. 2010 Apr;11(5):807-16. doi: 10.1517/14656561003641982. [20151846 ]
  3. Bross PF, Cohen MH, Williams GA, Pazdur R: FDA drug approval summaries: fulvestrant. Oncologist. 2002;7(6):477-80. [12490735 ]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Zinc ion binding
Specific Function:
Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3. Isoform 3 can bind to ERE and inhibit isoform 1.
Gene Name:
ESR1
Uniprot ID:
P03372
Molecular Weight:
66215.45 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC507.87 uMACEA_T47D_80hr_PositiveACEA Biosciences
AC500.0123 uMNVS_NR_hERNovascreen
AC500.108 uMOT_ER_ERaERa_0480Odyssey Thera
AC500.14 uMOT_ER_ERaERa_1440Odyssey Thera
AC500.00589 uMOT_ERa_EREGFP_0120Odyssey Thera
AC500.0116 uMOT_ERa_EREGFP_0480Odyssey Thera
AC500.0187 uMTox21_ERa_BLA_Antagonist_ratioTox21/NCGC
AC500.00657 uMTox21_ERa_LUC_BG1_AntagonistTox21/NCGC
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Oxygen binding
Specific Function:
Catalyzes the formation of aromatic C18 estrogens from C19 androgens.
Gene Name:
CYP19A1
Uniprot ID:
P11511
Molecular Weight:
57882.48 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC500.00823 uMTox21_Aromatase_InhibitionTox21/NCGC
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Zinc ion binding
Specific Function:
Nuclear hormone receptor. Binds estrogens with an affinity similar to that of ESR1, and activates expression of reporter genes containing estrogen response elements (ERE) in an estrogen-dependent manner (PubMed:20074560). Isoform beta-cx lacks ligand binding ability and has no or only very low ere binding activity resulting in the loss of ligand-dependent transactivation ability. DNA-binding by ESR1 and ESR2 is rapidly lost at 37 degrees Celsius in the absence of ligand while in the presence of 17 beta-estradiol and 4-hydroxy-tamoxifen loss in DNA-binding at elevated temperature is more gradual.
Gene Name:
ESR2
Uniprot ID:
Q92731
Molecular Weight:
59215.765 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC500.105 uMOT_ER_ERaERb_0480Odyssey Thera
AC500.193 uMOT_ER_ERaERb_1440Odyssey Thera
AC500.0284 uMOT_ER_ERbERb_0480Odyssey Thera
AC500.0402 uMOT_ER_ERbERb_1440Odyssey Thera
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Zinc ion binding
Specific Function:
Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
Gene Name:
NR1I2
Uniprot ID:
O75469
Molecular Weight:
49761.245 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC500.641 uMATG_PXR_TRANSAttagene
AC500.55 uMATG_PXRE_CISAttagene
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
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 modulator of other transcription factors. Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth. Involved in chromatin remodeling. May play a negative role in adipogenesis through the regulation of lipolytic and antilipogenic genes expression.
Gene Name:
NR3C1
Uniprot ID:
P04150
Molecular Weight:
85658.57 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC500.941 uMTox21_GR_BLA_Antagonist_ratioTox21/NCGC
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Zinc ion binding
Specific Function:
Ligand-activated transcription factor. Receptor for bile acids such as chenodeoxycholic acid, lithocholic acid and deoxycholic acid. Represses the transcription of the cholesterol 7-alpha-hydroxylase gene (CYP7A1) through the induction of NR0B2 or FGF19 expression, via two distinct mechanisms. Activates the intestinal bile acid-binding protein (IBABP). Activates the transcription of bile salt export pump ABCB11 by directly recruiting histone methyltransferase CARM1 to this locus.
Gene Name:
NR1H4
Uniprot ID:
Q96RI1
Molecular Weight:
55913.915 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC501.47 uMOT_SRC1_SRC1FXR_1440Odyssey Thera
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Transcription regulatory region dna binding
Specific Function:
Ligand-activated transcriptional activator. Binds to the XRE promoter region of genes it activates. Activates the expression of multiple phase I and II xenobiotic chemical metabolizing enzyme genes (such as the CYP1A1 gene). Mediates biochemical and toxic effects of halogenated aromatic hydrocarbons. Involved in cell-cycle regulation. Likely to play an important role in the development and maturation of many tissues. Regulates the circadian clock by inhibiting the basal and circadian expression of the core circadian component PER1. Inhibits PER1 by repressing the CLOCK-ARNTL/BMAL1 heterodimer mediated transcriptional activation of PER1.
Gene Name:
AHR
Uniprot ID:
P35869
Molecular Weight:
96146.705 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC502.45 uMTox21_AhRTox21/NCGC
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]