Fulvestrant (Faslodex) + Anastrozole (Arimidex) vs Anastrozole

Breast Cancer Clinical Trial

Official title: Phase III Trial Comparing Efficacy and Tolerance of Fulvestrant for 3 Years (y) Combined With Anastrozole 5 y Versus Anastrozole 5 y as Adjuvant Hormonotherapy in Postmenopausal With Early Breast Cancer and Positive Hormone Receptors

Status Terminated

Clinical Trial Summary

Postmenopausal women with hormone receptor positive and negative Her2 tumours.

Before randomization, the patients will be stratified according to the center, positive nodes (0 vs. 1-3 vs. ≥4), previous chemotherapy (yes vs no) and hormonal receptors status.

Clinical Trial Description

It is expected that disease-free survival for patients receiving Anastrozole alone for 5 years will be up to 90%. An increase of 3% in disease-free survival (DFS) is expected in the arm of Fulvestrant plus Anastrozole, i.e a DFS of up to 93%. They will be required 1358 patients per treatment group (i.e, 2716 patients in total) to give 80% power, alfa bilateral 0.05, and OR 0.6888. Assuming 5% screening failures 2852 patients are required to enter the study. In Jun-2010 the recruitment was stopped due to lack of support of the financier based on the result of Faslodex® and Arimidex® in Combination Trial (FACT-trial), comparing Fulvestrant + Anastrozole vs Anastrozole alone in 1st relapse showed no difference in time to progression at more than 40 months follow-up. ;

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms

• NCT number: NCT00543127
• Study type: Interventional
• Source: Spanish Breast Cancer Research Group
• Status: Terminated
• Phase: Phase 3
• Start date: November 2007
• Completion date: July 2016