# Evaluating Omitting of Internal Mammary Irradiation Among Early Stage Intermediate Risk (N1) Breast Cancer

> **NCT04517266** · NA · RECRUITING · sponsor: **Ruijin Hospital** · enrollment: 214 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **RADIATION:** omit of IMI group
- **RADIATION:** IMI group

## Key facts

- **NCT ID:** NCT04517266
- **Lead sponsor:** Ruijin Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-03-01
- **Primary completion:** 2025-10-30
- **Final completion:** 2030-10-30
- **Target enrollment:** 214 (ESTIMATED)
- **Last updated:** 2023-12-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04517266

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04517266, "Evaluating Omitting of Internal Mammary Irradiation Among Early Stage Intermediate Risk (N1) Breast Cancer". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT04517266. Licensed CC0.

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