# External-Beam Partial-Breast Irradiation for Early Breast Cancer 40 Gy QD Over 2 Weeks

> **NCT01581619** · NA · COMPLETED · sponsor: **Massachusetts General Hospital** · enrollment: 54 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **RADIATION:** External Beam Partial-Breast Irradiation

## Key facts

- **NCT ID:** NCT01581619
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2012-05
- **Primary completion:** 2016-08
- **Final completion:** 2019-08
- **Target enrollment:** 54 (ACTUAL)
- **Last updated:** 2020-11-02

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01581619

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01581619, "External-Beam Partial-Breast Irradiation for Early Breast Cancer 40 Gy QD Over 2 Weeks". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT01581619. Licensed CC0.

---

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