Letrozole in Treating Postmenopausal Women Who Have Received Hormone Therapy for Hormone Receptor-Positive Breast Cancer

NCT00382070 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 3966

Last updated 2024-03-22

Study results available
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Summary

RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by lowering the amount of estrogen the body makes. It is not yet known whether letrozole is more effective than a placebo in treating patients with hormone receptor-positive breast cancer.

PURPOSE: This randomized phase III trial is studying letrozole to see how well it works compared with a placebo in treating postmenopausal women who have received hormone therapy for hormone receptor-positive breast cancer.

Conditions

Interventions

DRUG

Letrozole

Letrozole 2.5 mg taken orally once daily for 5 years

OTHER

Placebo

Placebo tablet taken orally once daily for 5 years

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    collaborator NIH
  • Novartis

    collaborator INDUSTRY
  • NSABP Foundation Inc

    lead NETWORK

Principal Investigators

  • Norman Wolmark, MD · NSABP Foundation Inc

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
120 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-08-31
Primary Completion
2016-08-25
Completion
2025-04-30

Countries

  • United States
  • Canada
  • Ireland

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00382070 on ClinicalTrials.gov