# ExclUsive endocRine Therapy Or Radiation theraPy for Women Aged ≥70 Years Early Stage Breast Cancer

> **NCT04134598** · PHASE3 · ACTIVE_NOT_RECRUITING · sponsor: **Azienda Ospedaliero-Universitaria Careggi** · enrollment: 926 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **RADIATION:** Breast irradiation (RT)
- **DRUG:** Endocrine Therapy (ET): letrozole, anastrozole, exemestane, tamoxifen

## Key facts

- **NCT ID:** NCT04134598
- **Lead sponsor:** Azienda Ospedaliero-Universitaria Careggi
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2021-02-08
- **Primary completion:** 2030-03-31
- **Final completion:** 2030-03-31
- **Target enrollment:** 926 (ESTIMATED)
- **Last updated:** 2025-08-29

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04134598

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04134598, "ExclUsive endocRine Therapy Or Radiation theraPy for Women Aged ≥70 Years Early Stage Breast Cancer". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT04134598. Licensed CC0.

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