# A Comparative Study of Mammography and Ultrasound for Breast Cancer Screening and Early Diagnosis

> **NCT04429269** · — · UNKNOWN · sponsor: **Peking Union Medical College Hospital** · enrollment: 6000 (estimated)

## Conditions studied

- Breast Cancer Diagnosis
- Breast Cancer Screening

## Interventions

- **DIAGNOSTIC_TEST:** mammography and ultrasound screening

## Key facts

- **NCT ID:** NCT04429269
- **Lead sponsor:** Peking Union Medical College Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-06-12
- **Primary completion:** 2023-06-01
- **Final completion:** 2023-06-01
- **Target enrollment:** 6000 (ESTIMATED)
- **Last updated:** 2020-07-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04429269

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04429269, "A Comparative Study of Mammography and Ultrasound for Breast Cancer Screening and Early Diagnosis". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04429269. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*