# Prolonged Tamoxifen Compared With Shorter Tamoxifen in Treating Patients Who Have Breast Cancer

> **NCT00003016** · PHASE3 · UNKNOWN · sponsor: **University of Oxford** · enrollment: 20000 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** tamoxifen citrate
- **PROCEDURE:** adjuvant therapy

## Key facts

- **NCT ID:** NCT00003016
- **Lead sponsor:** University of Oxford
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 1995-10
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 20000 (ESTIMATED)
- **Last updated:** 2009-02-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00003016

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00003016, "Prolonged Tamoxifen Compared With Shorter Tamoxifen in Treating Patients Who Have Breast Cancer". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT00003016. Licensed CC0.

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