# Locoregional Surgery of the Primary Tumor in de Novo Stage IV Breast Cancer Patients

> **NCT04456855** · — · UNKNOWN · sponsor: **Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University** · enrollment: 358 (estimated)

## Conditions studied

- Breast Neoplasm Female
- Surgery
- Advanced Breast Cancer

## Interventions

- **PROCEDURE:** Locoregional surgery

## Key facts

- **NCT ID:** NCT04456855
- **Lead sponsor:** Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-09-01
- **Primary completion:** 2020-10-30
- **Final completion:** 2021-07-30
- **Target enrollment:** 358 (ESTIMATED)
- **Last updated:** 2020-07-07

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04456855

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04456855, "Locoregional Surgery of the Primary Tumor in de Novo Stage IV Breast Cancer Patients". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04456855. Licensed CC0.

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