Tomosynthesis as Primary Test for Breast Cancer Screening

  • STATUS
    Recruiting
  • End date
    Jun 30, 2026
  • participants needed
    8000
  • sponsor
    Azienda Unità Sanitaria Locale Reggio Emilia
Updated on 19 February 2024
cancer screening
digital mammography
breast cancer screening
tomosynthesis

Summary

Randomized trial comparing tomosynthesis plus synthetic 2D Mammography vs Digital Mammography in respect to incidence of advanced cancers (interval and following round) and interval cancers.

Description

This is a companion study of the other Italian studies on tomosyntesis as primary screening test for breast cancer: RETomo (NCT02698202), PROTEUS (NCT02590315), IMPETO (NCT03587259). The investigators conduct a randomized trial in three centres with a protocol that is similar to that of the other three studies. As for IMPETO and differently from the RETomo and PROTEUS studies, the intervention will be tomosynthesis + synthetic 2D.

In the three centres about 8000 women will be recruited (4000 in the experimental arm and 4000 in the control arm).

The study will compare the performance of tomosynthesis plus synthetic 2D vs digital mammography in respect to incidence of advanced cancers (interval and following round) and interval cancers. Women 50 to 65 years old will be screened once according to randomization arm for one round, then all will be screened with digital mammography after two years.

The investigators also will measure detection rates, specificity, interval cancers, advanced cancers occurring as interval cancers or at subsequent screens and allowing to estimate excess overdiagnosis comparing overall cumulative incidence after two or three rounds of screening.

Women will be asked for informed consent when they attend the mammography. If they accept they will be randomised to one of the two arms.

All examinations will be read by two independent radiologists, in case of discordance a third reading is asked.

Details
Condition Breast Cancer, Breast Cancer
Age 45years - 65years
Treatment tomosynthesis + synthetic 2D, digital mammography
Clinical Study IdentifierNCT04461808
SponsorAzienda Unità Sanitaria Locale Reggio Emilia
Last Modified on19 February 2024

Eligibility

Yes No Not Sure

Inclusion Criteria

Women scheduled for a new round of mammographic screening
resident in the province

Exclusion Criteria

previous breast cancer diagnosis
pregnancy or suspicion of pregnancy
presence of BRCA1/2 gene mutation
Previous Digital Breast Tomosynthesis performed
unable to understand informed consent
chemotherapy in progress
presence of breast implant
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