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Benign Breast DiseaseVITALNCT02239874

VITamin D and OmegA-3 TriaL: Effects on Mammographic Density and Breast Tissue

A study testing Vitamin D and fish oil in people with Benign Breast Disease, run by Brigham and Women's Hospital at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in… Read more about this study

Who is it for?
Ages 55 to 67 years, women onlyHealthy volunteers can take part
Conditions the study is for
Benign Breast Disease
What is being tested?
Vitamin D and fish oil
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
3,894 participants
Where
1 siteUnited States
Study dates
Jul 2012to Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 67 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • part of parent VITAL trial

Who cannot join

  • Men,
  • women with breast cancer

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

Other trials in United States

About this study

Official title: THE EFFECTS OF VITAMIN D ON MAMMOGRAPHIC DENSITY AND BREAST TISSUE

The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among participants in VITAL and will examine whether vitamin D effects mammographic breast density, mammographic texture features, and gene expression profiles in breast biopsy tissue.

Read the detailed description

Mammographic density is one of the strongest risk factors for breast cancer. It is predictive of breast cancer risk for at least 10 years in the futue and has been suggested as a surrogate marker of breast cancer risk. Several states now mandate release of mammographic density data to women. However, except for anti-hormonal therapies (e.g., tamoxifen), no interventions have been proven to reduce breast density. Thus, testing promising, well-tolerated interventions that might affect mammographic density is of substantial interest. Several lines of evidence suggest that vitamin D may play a role in breast density and breast carcinogenesis. Vitamin D reduces proliferation and promotes differentiation and apoptosis in breast cells in culture. However, no large-scale randomized studies have examined the impact of vitamin D on mammographic density. We propose to examine the randomized effects vitamin D3 on mammographic breast density in the NIH sponsored VITamin D and OmegA-3 TriaL (VITAL), an ongoing randomized, double blind, trial testing vitamin D3 (2,000 IU/day cholecalciferol) and omega-3 fatty acids (840 mg eicosapentaenoic acid [EPA]+ docosahexaenoic acid [DHA]) in the primary prevention of cancer and cardiovascular disease in a multi-ethnic population of over 24,000 men and women. In this ancillary sub study, mammograms will be obtained on 4000 women age 55-67 years (25% African-American), from baseline (pre-randomization) and after 1 and 4 years of randomized therapy. Centrally processed quantitative mammographic density and texture variation will be measured. We will determine if randomized vitamin D treatment is associated with change in mammographic features, and whether effects are modified by baseline mammographic density, and baseline 25(OH) vitamin D levels. In addition, tissue samples from women in VITAL undergoing breast biopsy/surgery, for both nonmalignant and malignant conditions, will be collected. Quantitative morphological measures, as well as gene expression assays targeting vitamin D activation and breast carcinogenesis pathways, will be performed on collected tissues among women on randomized vitamin D3 compared with placebo. This ancillary study provides a timely opportunity to test comprehensively the effects of vitamin D3 on mammographic features and breast tissue biology in a randomized setting at minimal additional cost.

Being tested
Vitamin D and fish oil placebo, Fish oil and vitamin D placebo, Vitamin D placebo and fish oil placebo, Vitamin D and fish oil
Keywords
mammographic breast density, breast disease, breast tissue
Medical subject headings
Cystic Fibrosis, Breast Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vitamin D and fish oil placeboDietary supplement

    Vitamin D3 (cholecalciferol), 2000 IU per day and fish oil placebo

  • Fish oil and vitamin D placeboDietary supplement

    Also called 840 mg of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA])

    840 mg of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA])

  • Vitamin D placebo and fish oil placeboDietary supplement

    placebo

  • Vitamin D and fish oilDietary supplement

    Vitamin D3 (cholecalciferol), 2000 IU per day and 840 mg of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA])

Study groups in NCT02239874
Study groupRoleWhat they receive
Vitamin D placebo and fish oil placeboPlacebo comparatorvitamin D placebo + fish oil placebo
Receives: Dietary Supplement: Vitamin D placebo and fish oil placebo
Fish oil and vitamin D placeboActive comparatorVitamin D placebo and 840 mg of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA])
Receives: Dietary Supplement: Fish oil and vitamin D placebo
Vitamin D and fish oil placeboActive comparatorVitamin D3 (cholecalciferol), 2000 IU per day and fish oil placebo
Receives: Dietary Supplement: Vitamin D and fish oil placebo
Vitamin D and fish oilActive comparatorVitamin D3 (cholecalciferol), 2000 IU per day and 840 mg of marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA])
Receives: Dietary Supplement: Vitamin D and fish oil

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mammographic breast density

    We will collect baseline (pre-randomization), 1-year and 4-year follow-up mammograms, as well as tissue specimens from women undergoing breast biopsy/surgery for malignant and nonmalignant disease, to further elucidate the role of vitamin D on mammographic features and breast tissue biology

    Measured: change baseline to 4 years

Secondary outcomes (1)
  1. Breast tissue

    Quantitative morphological measures, as well as gene expression assays targeting vitamin D activation and breast carcinogenesis pathways, will be performed on collected tissues among women on randomized vitamin D3 compared with placebo

    Measured: 4 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Sep 2014 (estimated)
  2. Study startJul 2012
  3. Primary completionMar 2022
  4. Study completionOct 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Factorial
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
3,894 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02239874
Sponsor's protocol ID
2014P000895
Other IDs
R01CA178263
Acronym
VITAL
Status last verified
Apr 2022
First submitted
11 Sep 2014
Last updated
7 Apr 2022
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin D and fish oil in people with Benign Breast Disease, run by Brigham and Women's Hospital at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 7 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mammographic breast density (time frame: change baseline to 4 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Apr 2022.

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