# Prospective Cohort Study of Breast Cancer Patients Treated With Radiotherapy

> **NCT04203849** · — · ENROLLING_BY_INVITATION · sponsor: **National Cancer Center, Korea** · enrollment: 5000 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04203849
- **Lead sponsor:** National Cancer Center, Korea
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2019-07-03
- **Primary completion:** 2022-06-01
- **Final completion:** 2034-06-30
- **Target enrollment:** 5000 (ESTIMATED)
- **Last updated:** 2021-12-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04203849

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04203849, "Prospective Cohort Study of Breast Cancer Patients Treated With Radiotherapy". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04203849. Licensed CC0.

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