# Tamoxifen or Letrozole in Treating Women With Ductal Carcinoma in Situ

> **NCT00290745** · PHASE1,PHASE2 · COMPLETED · sponsor: **University of California, San Francisco** · enrollment: 79 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** letrozole
- **DRUG:** tamoxifen citrate
- **PROCEDURE:** conventional surgery
- **PROCEDURE:** neoadjuvant therapy

## Key facts

- **NCT ID:** NCT00290745
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2002-02-19
- **Primary completion:** 2009-07-31
- **Final completion:** 2011-06-30
- **Target enrollment:** 79 (ACTUAL)
- **Last updated:** 2020-12-04

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00290745

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00290745, "Tamoxifen or Letrozole in Treating Women With Ductal Carcinoma in Situ". Retrieved via AI Analytics 2026-07-01 from https://api.ai-analytics.org/clinical/NCT00290745. Licensed CC0.

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