# Incidence and Prognostic Significance of HER-2 Status Discordance Between Primary Breast Cancer and Paired Recurrent/Metastatic Lesions

> **NCT05510037** · — · COMPLETED · sponsor: **Fudan University** · enrollment: 1299 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **OTHER:** no intervention

## Key facts

- **NCT ID:** NCT05510037
- **Lead sponsor:** Fudan University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-01
- **Primary completion:** 2022-06-01
- **Final completion:** 2022-06-01
- **Target enrollment:** 1299 (ACTUAL)
- **Last updated:** 2022-08-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05510037

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05510037, "Incidence and Prognostic Significance of HER-2 Status Discordance Between Primary Breast Cancer and Paired Recurrent/Metastatic Lesions". Retrieved via AI Analytics 2026-05-21 from https://api.ai-analytics.org/clinical/NCT05510037. Licensed CC0.

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