CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 736 enrolled / 736 target
Drug / intervention
Fulvestrantdrug
Likely dose
500 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00099437
NCT00099437Phase 3ActiveUpdate Overdue (2.9/mo)Completion was 208mo ago

A Randomised, Double-Blind, Parallel-group, Multicentre, Phase III Study Comparing the Efficacy and Tolerability of Fulvestrant (FASLODEX™) 500 mg With Fulvestrant (FASLODEX™) 250 mg in Postmenopausal Women With Oestrogen Receptor Positive Advanced Breast Cancer Progressing or Relapsing After Previous Endocrine Therapy

AstraZeneca·interventional·Posted Dec 14, 2004·Updated Jun 11, 2026

In Brief

A Phase 3 clinical trial evaluating Fulvestrant for Breast Cancer. Active but no longer recruiting, targeting 736 participants across 106 sites in 17 countries.

Signals

Enrollment appears stalled

Detailed Summary

The purpose of this study is to evaluate the efficacy of a new dose of 500 mg Fulvestrant with the standard dose of 250 mg in postmenopausal women with oestrogen receptor positive advanced breast cancer who have failed on a previous endocrine treatment.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsBreast Cancer
CountriesBelgium, Brazil, Chile, Colombia, Czechia, Hungary, India, Italy, Malta, Mexico, Poland, Russia, Slovakia, Spain, Ukraine, United States, Venezuela
Collaborators--

Timeline

Phase 3Active
20052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedDec 14, 2004
Enrollment StartFeb 13, 2005
Primary CompletionFeb 27, 2009
Study CompletionDec 31, 2026
TodayJul 2, 2026
Enrollment to primary: 4.0 yearsPosted 21.6 years ago

Arms & Interventions

1experimental

Fulvestrant 500 mg

Drug: Fulvestrant
2experimental

Fulvestrant 250 mg

Drug: Fulvestrant

Interventions

Fulvestrantdrug

intramuscular injection