# Optimal Surgical Approach for Early-Stage Breast Cancer in Chinese Patients Aged ≤ 40 Years: a Cohort Study

> **NCT06603805** · — · COMPLETED · sponsor: **West China Hospital** · enrollment: 974 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **PROCEDURE:** MAST group
- **PROCEDURE:** breast-conserving surgery plus adjuvant radiotherapy

## Key facts

- **NCT ID:** NCT06603805
- **Lead sponsor:** West China Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2008-01-01
- **Primary completion:** 2019-12-31
- **Final completion:** 2024-01-01
- **Target enrollment:** 974 (ACTUAL)
- **Last updated:** 2024-09-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06603805

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06603805, "Optimal Surgical Approach for Early-Stage Breast Cancer in Chinese Patients Aged ≤ 40 Years: a Cohort Study". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT06603805. Licensed CC0.

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