PERsonalized Mammographic Screening in Norway

The aim of this study is to assess attendance among women invited to additional breast imaging because they were identified as having an increased risk of breast cancer at screening. High-risk women were defined in two studies: Study A; women with high mammographic density, representing approximately 3-5% of screened women, and Study B; women with a false-positive screening result. Women in Study A will be offered an additional screening examination with digital breast tomosynthesis immediately within 6 months after the screening examination. Women in Study B will be offered an additional standard digital mammography examination one year after their initial screening.

NCT Number	NCT07371702
Lead Sponsor	Norwegian Institute of Public Health Collaborators: Norwegian Cancer Society, University Hospital, Akershus, Oslo University Hospital, Vestre Viken Hospital Trust
Conditions	Breast Cancer, Mammographic Breast Density, Risk Stratification
Enrollment	3,000 participants
Start Date	2026-01
Primary Completion	2028-01 (estimated)
Study Completion	2033-12 (estimated)
Updated on ClinicalTrials.gov	2026-01-29