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Malmö Breast Tomosynthesis Screening Trial (MBTST)

This study is ongoing, but not recruiting participants.
Unilabs AB Sweden
Information provided by (Responsible Party):
Region Skane Identifier:
First received: March 12, 2010
Last updated: October 10, 2016
Last verified: October 2016
To compare digital breast tomosynthesis (DBT) with full field digital mammography (FFDM) regarding effectiveness as screening modalities.

Condition Intervention
Breast Cancer Radiation: DBT and FFDM

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Malmö Breast Tomosynthesis Screening Trial

Resource links provided by NLM:

Further study details as provided by Region Skane:

Primary Outcome Measures:
  • Number of breast cancers detected by DBT [ Time Frame: 24 months ]
    The number of breast cancers detected by DBT will be compared with the number detected by DM. A follow-up period of 24 months after the intervention period will provide information on the actual numbers of breast cancers in the study population through record linkage with the Swedish Cancer Registry. Sensitivity and specificity for breast cancer detection will be assessed for DBT and BT respectively.

Enrollment: 15000
Study Start Date: March 2010
Estimated Study Completion Date: December 2017
Estimated Primary Completion Date: December 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Single-armed study. Women are their own controls with paired images of digital mammography and breast tomosynthesis.
Radiation: DBT and FFDM
Women in the study will once undergo both standard FFDM screening (2-views) and DBT (1 view, MLO). This will result in a doubled radiation dose compared to only 2-view FFDM, which is the standard procedure for women in the screening program.

Detailed Description:
Mammography is the only approved method for breast cancer screening, but not all tumors can be detected with mammography. The main reason is overlapping structures that can either mimic or hide a tumor on a 2-dimensional image like mammography. Digital breast tomosynthesis, (DBT) is a 3-dimensional x-ray technique that has been developed during the last years. A tomographic technique like DBT, which reduces or eliminates the detrimental effect of over- and underlying tissue, can probably help to find more tumors. This study aims to investigate whether more breast cancers can be detected with DBT compared to full field digital mammography (FFDM) in population invited to screening. An interim analysis will be performed during 2013 including the first 7,500 women of the study cohort.

Ages Eligible for Study:   40 Years to 74 Years   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • women 40-74 years old
  • in the regular population based mammographic screening program in Malmö, Sweden.

Exclusion Criteria: pregnancy

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01091545

Malmö Breast Screening Unit, Skåne University Hospital
Malmö, Sweden, SE 20502
Sponsors and Collaborators
Region Skane
Unilabs AB Sweden
Principal Investigator: Sophia Zackrisson, MD PhD Region Skane
Principal Investigator: Ingvar Andersson, MD PhD Lund University
  More Information

Responsible Party: Region Skane Identifier: NCT01091545     History of Changes
Other Study ID Numbers: Dnr 2009/770
Study First Received: March 12, 2010
Last Updated: October 10, 2016

Keywords provided by Region Skane:
breast cancer
tomosynthesis processed this record on September 21, 2017