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Hormone Therapy

Fulvestrant vs Anastrozole for Breast Cancer (FALCON Trial)

Phase 3
Waitlist Available
Led By Matthew Ellis, DM
Research Sponsored by AstraZeneca
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up baseline recist 1.1 assessments and then every 12 weeks until disease progression or treatment discontinuation (up to approximately 38 months)
Awards & highlights
Pivotal Trial
No Placebo-Only Group

Summary

This trial will compare the effects of two different hormone treatments, Fulvestrant and Anastrozole, on disease progression in women with breast cancer that has spread to other parts of the body.

Who is the study for?
This trial is for postmenopausal women aged 60 or above with breast cancer that's either locally advanced or metastatic, and who haven't had hormonal treatment before. They should have a positive hormone receptor status and can have had one chemotherapy line if there's still disease progression.
What is being tested?
The study compares the effects of two drugs on breast cancer: Fulvestrant (FASLODEX) at 500mg versus Anastrozole (ARIMIDEX) at 1mg. It aims to see which drug better slows down disease progression in patients who haven't received prior hormonal therapy.
What are the potential side effects?
Possible side effects include hot flashes, joint pain, nausea, fatigue, bone pain for Arimidex; and injection site reactions, headache, back pain, fatigue for Faslodex. Each patient may experience side effects differently.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~baseline recist 1.1 assessments and then every 12 weeks until disease progression or treatment discontinuation (up to approximately 38 months)
This trial's timeline: 3 weeks for screening, Varies for treatment, and baseline recist 1.1 assessments and then every 12 weeks until disease progression or treatment discontinuation (up to approximately 38 months) for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Comparison of Progression-Free Survival (PFS) in Patients Treated With Fulvestrant With Those Treated With Anastrozole
Secondary study objectives
Clinical Benefit Rate (CBR) for Fulvestrant Treatment Versus Anastrozole Treatment
Comparison of Overall Survival (OS) in Patients Treated With Fulvestrant With Those Treated With Anastrozole; Percentage of Patients With Events
Comparison of the Effect of Fulvestrant Treatment Versus Anastrozole Treatment on Time to Deterioration of Health-Related Quality of Life (HRQoL)
+5 more

Awards & Highlights

Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.
No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups
Experimental Treatment
Active Control
Group I: faslodex+placeboExperimental Treatment2 Interventions
Blinded: Fulvestrant 500mg intramuscular injection (2x250mg) plus dummy Anastrozole tablets
Group II: arimidex +placeboActive Control2 Interventions
Blinded: Anastrozole 1mg tablets plus dummy Fulvestrant intramuscular injection (2x0mg)

Find a Location

Who is running the clinical trial?

AstraZenecaLead Sponsor
4,411 Previous Clinical Trials
289,122,610 Total Patients Enrolled
177 Trials studying Breast Cancer
1,245,073 Patients Enrolled for Breast Cancer
Matthew Ellis, DMPrincipal InvestigatorWashington University School of Medicine, USA
Shankar S, MDStudy DirectorAstraZeneca
John Robertson, MDPrincipal InvestigatorGraduate Medicine and Health School, University of Nottingham, UK
1 Previous Clinical Trials
24 Total Patients Enrolled

Media Library

Anastrozole (Hormone Therapy) Clinical Trial Eligibility Overview. Trial Name: NCT01602380 — Phase 3
Breast Cancer Research Study Groups: faslodex+placebo, arimidex +placebo
Breast Cancer Clinical Trial 2023: Anastrozole Highlights & Side Effects. Trial Name: NCT01602380 — Phase 3
Anastrozole (Hormone Therapy) 2023 Treatment Timeline for Medical Study. Trial Name: NCT01602380 — Phase 3
~35 spots leftby Dec 2025