# National Mammography Database

> **NCT01900821** · — · RECRUITING · sponsor: **American College of Radiology** · enrollment: 8000000 (estimated)

## Conditions studied

- Breast Cancer Screening and Diagnosis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01900821
- **Lead sponsor:** American College of Radiology
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2009-07
- **Primary completion:** 2026-12
- **Final completion:** 2026-12
- **Target enrollment:** 8000000 (ESTIMATED)
- **Last updated:** 2025-10-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01900821

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01900821, "National Mammography Database". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT01900821. Licensed CC0.

---

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