# A Prospective Cohort Study of Proton and Photon Therapy for Left-sided Breast Cancer.

> **NCT06677879** · PHASE2 · RECRUITING · sponsor: **Shanghai Proton and Heavy Ion Center** · enrollment: 780 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **RADIATION:** Proton radiotherapy
- **RADIATION:** Photon radiotherapy

## Key facts

- **NCT ID:** NCT06677879
- **Lead sponsor:** Shanghai Proton and Heavy Ion Center
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2024-08-01
- **Primary completion:** 2026-07-31
- **Final completion:** 2028-07-31
- **Target enrollment:** 780 (ESTIMATED)
- **Last updated:** 2025-05-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06677879

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06677879, "A Prospective Cohort Study of Proton and Photon Therapy for Left-sided Breast Cancer.". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT06677879. Licensed CC0.

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