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Study identifier: NCT06195306 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Low Dose Tamoxifen With or Without Omega-3 Fatty Acids for Breast Cancer Risk Reduction

Condition: Breast Atypical Hyperplasia · Breast Carcinoma · Breast Ductal Carcinoma In Situ  ·  Sponsor: National Cancer Institute (NCI)

PhasePhase 2
Planned participants66
Who can joinFemale, 45 Years to 74 Years
Healthy volunteersYes

About this study

This phase II trial evaluates tamoxifen, with or without omega-3 fatty acids, for reducing risk of breast cancer among postmenopausal and overweight or obese women who are at increased risk of developing breast cancer. Tamoxifen is a selective estrogen receptor modulator. It works by blocking the effects of the hormone estrogen in the breast. Tamoxifen is approved by the Food and Drug Administration for prevention of breast cancer in women at increased risk. Omega-3 fatty acids have been shown to decrease the amount of fats made in the liver. Omega-3 fatty acids may work to prevent cancer in overweight or obese individuals. Tamoxifen with or without omega-3 fatty acids may be effective at reducing risk of breast cancer among women who are postmenopausal, overweight or obese, and at increased risk.

This description comes directly from the study's public registry record.

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Contact details are listed per location below or on the registry record.

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Locations (3)

University of Kansas Cancer CenterKansas City, Kansas, United StatesRecruiting
University of Michigan Rogel Cancer CenterAnn Arbor, Michigan, United StatesRecruiting
Ohio State University Comprehensive Cancer CenterColumbus, Ohio, United StatesNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT06195306