# Study of Tamoxifen and Raloxifene (STAR) for the Prevention of Breast Cancer in Postmenopausal Women

> **NCT00003906** · PHASE3 · COMPLETED · sponsor: **NSABP Foundation Inc** · enrollment: 19747 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** Raloxifene
- **DRUG:** Tamoxifen

## Key facts

- **NCT ID:** NCT00003906
- **Lead sponsor:** NSABP Foundation Inc
- **Sponsor class:** NETWORK
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1999-05
- **Primary completion:** 2005-12
- **Final completion:** 2012-08
- **Target enrollment:** 19747 (ACTUAL)
- **Last updated:** 2015-10-06

## Collaborators

- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00003906

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00003906, "Study of Tamoxifen and Raloxifene (STAR) for the Prevention of Breast Cancer in Postmenopausal Women". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT00003906. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*