# Circulating Tumor DNA as Marker of Therapeutic Efficacy in Breast Cancer Patients

> **NCT03881384** · — · UNKNOWN · sponsor: **First Affiliated Hospital Xi'an Jiaotong University** · enrollment: 200 (estimated)

## Conditions studied

- Breast Neoplasms

## Interventions

- **OTHER:** ctDNA level during neoadjuant chemotherapy

## Key facts

- **NCT ID:** NCT03881384
- **Lead sponsor:** First Affiliated Hospital Xi'an Jiaotong University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-04-01
- **Primary completion:** 2021-12-31
- **Final completion:** 2024-12-31
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2019-06-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03881384

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03881384, "Circulating Tumor DNA as Marker of Therapeutic Efficacy in Breast Cancer Patients". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT03881384. Licensed CC0.

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