Clinical Trial

Digital Tomosynthesis Mammography and Digital Mammography in Screening Patients for Breast Cancer

Active, Not Recruiting Phase 3
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Summary
This randomized phase III trial studies digital tomosynthesis mammography and digital mammography in screening patients for breast cancer. Screening for breast cancer with tomosynthesis mammography may be superior to digital mammography for breast cancer screening and may help reduce the need for additional imaging or treatment.
Protocol Amendment History 40 amendments
This ClinicalTrials.gov record has been amended 40 times since 2017-07-25; most recent amendment 2026-07-09.
Status change: Recruiting → Active, Not Recruiting 2025-01-07
Trial Details
NCT Number NCT03233191
Lead Sponsor ECOG-ACRIN Cancer Research Group
Collaborators: National Cancer Institute (NCI), Canadian Cancer Trials Group (CCTG)
Conditions Breast Screening
Enrollment 108,508 participants
Start Date 2017-09-28
Primary Completion 2028-12-31 (estimated)
Study Completion 2030-12-31 (estimated)
Updated on ClinicalTrials.gov 2026-07-10