Viewing Study NCT00673335



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Last Modification Date: 2024-10-26 @ 9:49 AM
Study NCT ID: NCT00673335
Status: COMPLETED
Last Update Posted: 2024-07-01
First Post: 2008-05-06

Brief Title: Letrozole in Preventing Breast Cancer in Postmenopausal Women With a BRCA1 or BRCA2 Mutation
Sponsor: UNICANCER
Organization: UNICANCER

Study Overview

Official Title: Prevention of Breast Cancer by Letrozole in Post-menopausal Women Carrying a BRCA1BRCA2 Mutation
Status: COMPLETED
Status Verified Date: 2024-06
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: LIBER
Brief Summary: RATIONALE Letrozole may prevent breast cancer in postmenopausal women with a BRCA1 or BRCA2 mutation

PURPOSE This randomized phase III trial is studying letrozole to see how well it works compared with a placebo in preventing breast cancer in postmenopausal women with a BRCA1 or BRCA2 mutation
Detailed Description: OBJECTIVES

Primary

Evaluate the reduction of the incidence of invasive breast cancer in postmenopausal women with the BRCA1BRCA2 mutation treated with letrozole

Secondary

Determine the reduction of the incidence of in situ breast cancer in these women
Determine the recurrence rate of local or metastatic disease in women who have had breast cancer
Determine the incidence of non-breast cancer especially ovarian colon or endometrial cancer
Assess the tolerance of this drug in terms of lipid cardiovascular and bone effects
Determine the quality of life of women treated with this drug
Identify serological markers that allow early diagnosis of hereditary predisposition for breast cancer
Conduct pharmacogenetic analysis
Identify biomarkers or genes involved in the occurrence of cardiovascular and rheumatologic metabolic aromatase inhibitors
Study the phenotypic characteristics of cancers that occur during treatment with letrozole in particular hormonal markers estrogen and progesterone receptor and expression profiles of resistance to therapy

OUTLINE This is a multicenter study Patients are stratified according to nature of mutation BRCA1 vs BRCA2 oophorectomy in premenopausal state yes vs no and prior breast cancer yes vs no Patients are randomized to 1 of 2 treatment arms

Arm I Patients receive oral letrozole once daily
Arm II Patients receive oral placebo once daily Treatment in both arms continues for 5 years in the absence of unacceptable toxicity or development of cancer or recurrent disease

Blood samples are collected periodically for pharmacogenetic studies and analysis of biomarkers or genes associated with hereditary predisposition for breast cancer toxicities and resistance to therapy

After completion of study treatment patients are followed for 5 years

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
2007-000687-24 EUDRACT_NUMBER UNICANCER None
ONCO-030701 OTHER None None
EU-20806 None None None
NOVARTIS-FNCLCC-ONCO 030701 None None None