Linked Life Data

12454761

Source:http://linkedlifedata.com/resource/pubmed/id/12454761

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2002-11-27
pubmed:abstractText
While tamoxifen use is associated with clear benefits in the treatment of hormone-sensitive breast cancer, it also exhibits partial oestrogen agonist activity that is associated with adverse events, including endometrial cancer. Fulvestrant ("Faslodex") is a new oestrogen receptor antagonist that downregulates the oestrogen receptor and has no known agonist effect. This single-centre, double-blind, randomised, parallel-group trial was conducted to determine the direct effects of fulvestrant on the female endometrium when given alone and in combination with the oestrogen, ethinyloestradiol. Following a 14-day, pretrial screening period, 30 eligible postmenopausal volunteers were randomised to receive fulvestrant 250 mg, fulvestrant 125 mg or matched placebo administered as a single intramuscular injection. Two weeks postinjection, volunteers received 2-weeks concurrent exposure to ethinyloestradiol 20 microg day(-1). Endometrial thickness was measured before and after the 14-day screening period with further measurements predose (to confirm a return to baseline) and on days 14, 28 and 42 post-treatment with fulvestrant. Pharmacokinetic and safety assessments were performed throughout the trial. Fulvestrant at a dose of 250 mg significantly (P=0.0001) inhibited the oestrogen-stimulated thickening of the endometrium compared with placebo. Neither the 125 mg nor 250 mg doses of fulvestrant demonstrated oestrogenic effects on the endometrium over the initial 14-day assessment period. Fulvestrant was well tolerated and reduced the incidence of ethinyloestradiol-related side effects. At the same dose level that is being evaluated in clinical trials of postmenopausal women with advanced breast cancer, fulvestrant (250 mg) is an antioestrogen with no evidence of agonist activity in the endometrium of healthy postmenopausal women.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-10561236, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-11036892, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-11130383, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-11559545, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-12177098, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-12177099, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-1345831, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-1474330, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-1542321, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-1855205, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-2199681, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-8133536, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-8228728, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-8275477, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-8688341, http://linkedlifedata.com/resource/pubmed/commentcorrection/12454761-9747868
pubmed:language
eng
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:author
pubmed:copyrightInfo
Copyright 2002 Cancer Research UK
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1354-9
pubmed:dateRevised
2009-11-18
pubmed:articleTitle
A phase I trial to assess the pharmacology of the new oestrogen receptor antagonist fulvestrant on the endometrium in healthy postmenopausal volunteers.
pubmed:affiliation
LCG Bioscience, Bourn Hall Clinic, Bourn, Cambridge, UK.