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Breast NeoplasmsNCT01910103

Comparison of Diagnostic Performance of Digital Breast Tomosynthesis and Ultrasound in Women With Dense Breasts

An observational study of Breast Neoplasms, run by Seoul National University Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Diagnostic performance of digital breast tomosynthesis (DBT) would be not inferior to the that of breast ultrasound in women with dense breast. Read more about this study

Who is it for?
Ages 20 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Breast Neoplasms
How many people
825 participants
Where
1 siteSouth Korea
Study dates
Jun 2013to Jun 2014
Phase
Observational
Are there results?
None posted in the registry

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 20 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Women undergoing mammography and breast US for screening or diagnostic purpose

Who may be able to join

  • Women aged at 20 years
  • Women who had heterogeneously dense or extremely dense parenchyma, either by prior mammography report or by review of prior mammograms
  • Signed study-specific informed consent prior to registration

Who cannot join

  • Had breast surgery
  • Had breast core biopsy performed within the prior 6 months on the study

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Department of Radiology, Seoul National University Hospital

    Seoul, 110-744

Other trials in South Korea

About this study

Diagnostic performance of digital breast tomosynthesis (DBT) would be not inferior to the that of breast ultrasound in women with dense breast.

Read the detailed description
  1. Patients with dense breast will be examined for the detection of breast cancer by imaging studies.
  2. The imaging including digital breast tomosynthesis (DBT), physician-performed bilateral whole breast ultrasonography will be performed according to a standard protocol.Interpretation will be conducted independently and classified according to the Breast Imaging Reporting and Data System (BI-RADS) by experienced radiologists.
  3. Definitive information about the presence of malignancy will be obtained by biopsy directed by the imaging method best depicting the lesion with 14-g or 11-g needle devices or needle localized excision. The absence of breast cancer was determined by means of biopsy, the absence of positive findings on repeat imaging and clinical examination, or both at follow-up.
  4. The diagnostic yield of digital breast tomosynthesis (DBT) compared to ultrasonography will be assessed.
Keywords
Breast Neoplasms/radiography, Mammography/methods, Mass Screening, Tomography, X-Ray Computed/methods, Predictive Value of Tests, False Positive Reactions
Medical subject headings
Breast Neoplasms

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Diagnostic performance (AUC: area of under ROC curve) of DBT and US

    The primary endpoint will be an analysis of the diagnostic performance of DBT to that of US for detecting breast cancer in the screening and diagnostic setting. The hypothesis is that DBT is not inferior to US for detecting breast cancer.

    Measured: one year

Secondary outcomes (1)
  1. Diagnostic sensitivity, sensitivity, negative predictive value, and positive predictive value of DBT and US for detecting breast cancer.

    We will calculate diagnostic sensitivity (%), sensitivity (%), negative predictive value (%), and positive predictive alue (%) of the DBT and US for the detection of breast cancer on a per-patient basis by using a BI-RADS score of 4 or 5 considered as test-positive and a BI-RADS score of 1, 2, or 3 considered as test-negative.

    Cases of women undergoing biopsy with malignant disease results were considered disease-positive. Cases of women with concordant benign biopsy results and women not undergoing biopsy with no evidence of breast malignancy after 1 year of clinical follow-up were considered diase-negative.

    Measured: One year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jul 2013 (estimated)
  2. Study startJun 2013
  3. Primary completionApr 2014
  4. Study completionJun 2014

Resources

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
Cohort
Time perspective
Prospective
Enrolment
825 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01910103
Sponsor's protocol ID
D-1303-051-472
Status last verified
May 2015
First submitted
24 Jun 2013
Last updated
20 May 2015
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Neoplasms, run by Seoul National University Hospital at 1 site in South Korea.

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 3 inclusion and 2 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: finished, as of the sponsor's last update on 20 May 2015. 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 South Korea. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Diagnostic performance (AUC: area of under ROC curve) of DBT and US (time frame: one 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 20 May 2015.

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