# Anastrozole or Tamoxifen in Treating Postmenopausal Women With Ductal Carcinoma in Situ Who Are Undergoing Lumpectomy and Radiation Therapy

> **NCT00053898** · PHASE3 · COMPLETED · sponsor: **NSABP Foundation Inc** · enrollment: 3104 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** anastrozole
- **DRUG:** tamoxifen citrate
- **RADIATION:** Radiation Therapy

## Key facts

- **NCT ID:** NCT00053898
- **Lead sponsor:** NSABP Foundation Inc
- **Sponsor class:** NETWORK
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-01
- **Primary completion:** 2015-03
- **Final completion:** 2016-05
- **Target enrollment:** 3104 (ACTUAL)
- **Last updated:** 2018-09-20

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00053898

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00053898, "Anastrozole or Tamoxifen in Treating Postmenopausal Women With Ductal Carcinoma in Situ Who Are Undergoing Lumpectomy and Radiation Therapy". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT00053898. Licensed CC0.

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