Breast Cancer Screening and DiagnosisNCT01900821
National Mammography Database
An observational study of Breast Cancer Screening and Diagnosis, run by American College of Radiology at 1 site in United States.
Trial summary
The National Mammography Database (NMD) leverages data that radiology practices are already collecting under federal mandate by providing them with comparative information for national and regional benchmarking. Read more about this study
- Who is it for?
- Ages 2 to 99 yearsHealthy volunteers can take part
- Conditions the study is for
- Breast Cancer Screening and Diagnosis
- How many people
- 8,000,000 participants
- Where
- 1 siteUnited States
- Study dates
- Jul 2009to Dec 2026
- How long will I take part?
- 1 Year
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 2 to 99 years
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: Women (primarily, but not exclusively), having mammograms at facilities participating in the registry
Who may be able to join
- All
Who cannot join
- None
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
The National Mammography Database (NMD) leverages data that radiology practices are already collecting under federal mandate by providing them with comparative information for national and regional benchmarking. Participants receive semi-annual feedback reports that include important benchmark data such as cancer detection rates, positive predictive value rates and recall rates. Participation in the NMD is free to Breast Imaging Center of Excellence (BICOE) facilities.
- Conditions
- Breast Cancer Screening and Diagnosis
- Medical subject headings
- Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Women | All women having mammograms |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cancer Detection Rate
This outcome measure is measured using one year of follow-up after a mammogram is performed on a woman, and is aggregated by interpreting physician. Because the NMD is a registry and screening mammograms are annual exams for most patients, this measure is calculated each year using one year of follow-up.
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Jul 2013 (estimated)
- Study startJul 2009
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Breast Cancer Screening and DiagnosisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Ecologic or community
- Time perspective
- Prospective
- Enrolment
- 8,000,000 participants (estimated)
- Target duration
- 1 Year
Sponsor and investigators
- Lead sponsor
- American College of Radiology
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01900821
- Sponsor's protocol ID
- NRDR-NMD
- Status last verified
- Oct 2026
- First submitted
- 11 Jul 2013
- Last updated
- 27 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 27 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- National Mammography Database
- ClinicalTrials.gov ID
- NCT01900821
- Acronym / sponsor ID
- NRDR-NMD
- Conditions
- Breast Cancer Screening and Diagnosis
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 8,000,000 participants (estimated)
- Lead sponsor
- American College of RadiologyUniversity, hospital or other
- Study start
- Jul 2009
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 17 Jul 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The National Mammography Database (NMD) leverages data that radiology practices are already collecting under federal mandate by providing them with comparative information for national and regional benchmarking. Participants receive semi-annual feedback reports that include important benchmark data such as cancer detection rates, positive predictive value rates and recall rates. Participation in the NMD is free to Breast Imaging Center of Excellence (BICOE) facilities.
Study design
- Observational model
- Ecologic or community
- Time perspective
- Prospective
- Target follow-up
- 1 Year
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Women | – | –All women having mammograms |
Who may qualify
- Ages
- 2 to 99 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Women (primarily, but not exclusively), having mammograms at facilities participating in the registry
Key inclusion criteria (1 listed)
- All
Key exclusion criteria (1 listed)
- None
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Cancer Detection Rate
Time frame: 1 year
This outcome measure is measured using one year of follow-up after a mammogram is performed on a woman, and is aggregated by interpreting physician. Because the NMD is a registry and screening mammograms are annual exams for most patients, this measure is calculated each year using one year of follow-up.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Oct 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Breast Cancer Screening and Diagnosis, run by American College of Radiology at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 27 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Mythreyi B Chatfield, PhD (703-715-4394, mchatfield@acr.org), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cancer Detection Rate (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Oct 2026.