# Single Fraction Accelerated Partial Breast Irradiation vs. Five Fraction Accelerated Partial Breast Irradiation for Low-risk Stage 0 and I Breast Carcinoma

> **NCT04849871** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Washington University School of Medicine** · enrollment: 134 (actual)

## Conditions studied

- Breast Carcinoma
- Breast Cancer
- Stage 0 Breast Cancer
- Stage I Breast Cancer

## Interventions

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

## Key facts

- **NCT ID:** NCT04849871
- **Lead sponsor:** Washington University School of Medicine
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2021-08-12
- **Primary completion:** 2029-08-06
- **Final completion:** 2029-08-06
- **Target enrollment:** 134 (ACTUAL)
- **Last updated:** 2026-05-06

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04849871

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04849871, "Single Fraction Accelerated Partial Breast Irradiation vs. Five Fraction Accelerated Partial Breast Irradiation for Low-risk Stage 0 and I Breast Carcinoma". Retrieved via AI Analytics 2026-05-20 from https://api.ai-analytics.org/clinical/NCT04849871. Licensed CC0.

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