Fulvestrant

Fulvestrant, sold under the brand name Faslodex among others, is an antiestrogenic medication used to treat hormone receptor (HR)-positive metastatic breast cancer in postmenopausal women with disease progression as well as HR-positive, HER2-negative advanced breast cancer in combination with abemaciclib or palbociclib in women with disease progression after endocrine therapy. It is given by injection into a muscle.

Fulvestrant
Clinical data
Pronunciation/fʊlˈvɛstrənt/
fuul-VES-trənt
Trade namesFaslodex, others
Other namesICI-182780; ZD-182780; ZD-9238; 7α-[9-[(4,4,5,5,5-Pentafluoropentyl)-sulfinyl]nonyl]estra-1,3,5(10)-triene-3,17β-diol
AHFS/Drugs.comMonograph
License data
Pregnancy
category
  • AU: D
  • D
Routes of
administration		Intramuscular injection
Drug classAntiestrogen
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • US: ℞-only
  • EU: Rx-only
  • In general: ℞ (Prescription only)
Pharmacokinetic data
BioavailabilityLow
Protein binding99%
MetabolismHydroxylation, conjugation (glucuronidation, sulfation)
Elimination half-lifeIMTooltip Intramuscular injection: 40–50 days
Identifiers
  • (7R,8R,9S,13S,14S,17S)-13-methyl-7-[9-(4,4,5,5,5-pentafluoropentylsulfinyl)nonyl]-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.170.955
Chemical and physical data
FormulaC32H47F5O3S
Molar mass606.78 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@@H]3c4ccc(O)cc4CC(CCCCCCCCCS(=O)CCCC(F)(F)C(F)(F)F)[C@H]3[C@@H]1CC[C@@H]2O
  • InChI=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
  • Key:VWUXBMIQPBEWFH-WCCTWKNTSA-N
 NY (what is this?)  (verify)

Fulvestrant is a selective estrogen receptor degrader (SERD) and was first-in-class to be approved. It works by binding to the estrogen receptor and destabilizing it, causing the cell's normal protein degradation processes to destroy it.

Fulvestrant was approved for medical use in the United States in 2002.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.