# Intensity Modulated Radiotherapy (IMRT) vs. 3D-conformal Accelerated Partial Breast Irradiation (APBI) for Early Stage Breast Cancer After Lumpectomy

> **NCT01185132** · PHASE3 · RECRUITING · sponsor: **Rocky Mountain Cancer Centers** · enrollment: 660 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **RADIATION:** accelerated partial breast irradiation - 3D-conformal planning
- **RADIATION:** accelerated partial breast irradiation - IMRT planning

## Key facts

- **NCT ID:** NCT01185132
- **Lead sponsor:** Rocky Mountain Cancer Centers
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2009-07
- **Primary completion:** 2018-07
- **Final completion:** 2028-07
- **Target enrollment:** 660 (ESTIMATED)
- **Last updated:** 2014-06-26


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01185132

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01185132, "Intensity Modulated Radiotherapy (IMRT) vs. 3D-conformal Accelerated Partial Breast Irradiation (APBI) for Early Stage Breast Cancer After Lumpectomy". Retrieved via AI Analytics 2026-05-29 from https://api.ai-analytics.org/clinical/NCT01185132. Licensed CC0.

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