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Clinical development of fulvestrant ("Faslodex")

Anthony Howell1, Paul Abram

  • 1CRUK Department of Medical Oncology, University of Manchester, Christie Hospital NHS Trust, Wilmslow Road, Manchester M20 4BX, UK. maria.parker@christie-tr.nwest.nhs.uk

Cancer Treatment Reviews
|October 4, 2005
PubMed

Insights

Fulvestrant, a novel pure anti-oestrogen, offers a new treatment for advanced hormone receptor-positive breast cancer in postmenopausal women. Its efficacy and tolerability are reviewed, highlighting its potential in endocrine therapy.

Area of Science:

  • Endocrinology
  • Oncology
  • Pharmacology

Background:

  • Estrogen receptor (ER) plays a crucial role in hormone receptor-positive breast cancer growth.
  • Evolution of pharmacological strategies targeting the ER is key in breast cancer treatment.
  • Need for novel endocrine therapies with improved efficacy and tolerability.

Purpose of the Study:

  • To outline the development of fulvestrant, a new class of anti-estrogen agent.
  • To review preclinical and clinical evidence for fulvestrant's efficacy.
  • To discuss the tolerability profile of fulvestrant compared to other endocrine therapies.

Main Methods:

  • Review of preclinical studies on fulvestrant's mechanism of action.
  • Analysis of clinical trial data assessing fulvestrant's efficacy in advanced breast cancer.
  • Comparative assessment of fulvestrant's safety and tolerability profile.

Main Results:

  • Fulvestrant demonstrated efficacy in hormone receptor-positive advanced breast cancer.
  • Fulvestrant exhibits a favorable tolerability profile compared to existing endocrine therapies.
  • No agonist effects observed, indicating pure anti-estrogen activity.

Conclusions:

  • Fulvestrant represents a significant advancement as a pure anti-estrogen for breast cancer treatment.
  • Further research is warranted to fully define fulvestrant's role in endocrine therapy.
  • Fulvestrant offers a new therapeutic option for postmenopausal women with advanced ER+ breast cancer.

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