Effect of Bazedoxifene, Raloxifene, and Placebo on Breast Density

NCT ID: NCT00418236

Last Updated: 2010-08-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

400 participants

Study Classification

OBSERVATIONAL

Study Start Date

2006-10-31

Study Completion Date

2010-04-30

Brief Summary

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It has been shown that women who have dense breasts have an increased risk of breast cancer compared with women whose breasts are less dense. However, while breast density may be a risk factor, the etiology of the relationship between breast cancer and breast density is not understood. Furthermore, it is well recognized that breast cancer can still develop in women whose breasts are not dense.

At menopause, the amount of breast glandular tissue and stroma naturally decreases due to a lack of hormonal stimulation. This is characterized as a decrease in the mammographic density. Although certain medications, including hormone therapy (HT) and dopamine antagonists can increase breast density, these effects are reversible upon discontinuation of the specific agent. Other medications such as the selective estrogen receptor modulators (SERM), raloxifene (RAL) and tamoxifen, have been shown to not affect breast density and allow the normal age-related changes to occur. The effects of bazedoxifene (BZA), a new SERM, on breast density are not known. The purpose of this study is to examine the effect of BZA on breast density changes over 24 months in postmenopausal women. The results may be useful for clinicians to understand the effect of BZA on breast density and its mammographic effects.

This is an observational, multicenter, double-blind, randomized, placebo- and active comparator-controlled study. It is also an ancillary that will use women who are already participants in a phase 3 trial for fracture reduction (protocol 3068A1-301-WW; primary study). In the primary study, subjects received BZA 20 mg, BZA 40 mg, RAL 60 mg, or placebo. This ancillary study will request a subset of participants to use their mammograms taken in this study. Their mammogram will be digitized by a central imaging center. A single radiologist will perform the quantifications of breast density from the digitized mammograms.

Detailed Description

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Conditions

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Breast Cancer

Study Design

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Study Time Perspective

RETROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

8. Was enrolled at a clinical site that is still participating in the primary study.
Minimum Eligible Age

18 Years

Maximum Eligible Age

63 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Wyeth is now a wholly owned subsidiary of Pfizer

INDUSTRY

Sponsor Role lead

Principal Investigators

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Medical Monitor

Role: STUDY_DIRECTOR

Wyeth is now a wholly owned subsidiary of Pfizer

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Bulgaria, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Croatia, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Denmark, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Estonia, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Netherlands, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Poland, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Romania, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For South Africa, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Canada, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Mexico, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Argentina, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Chile, [email protected]

Trial Manager

Role: PRINCIPAL_INVESTIGATOR

For Brazil, [email protected]

Locations

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San Diego, California, United States

Site Status

Upland, California, United States

Site Status

Meridian, Idaho, United States

Site Status

Brooklyn Center, Minnesota, United States

Site Status

Billings, Montana, United States

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Bozeman, Montana, United States

Site Status

Bismarck, North Dakota, United States

Site Status

Fargo, North Dakota, United States

Site Status

Jamestown, North Dakota, United States

Site Status

Watertown, South Dakota, United States

Site Status

Buenos Aires, , Argentina

Site Status

Sorocaba, São Paulo, Brazil

Site Status

Goiânia, , Brazil

Site Status

Mato Grosso, , Brazil

Site Status

Sofia, , Bulgaria

Site Status

Sofia, , Bulgaria

Site Status

Vancouver, British Columbia, Canada

Site Status

Winnipeg, Manitoba, Canada

Site Status

Québec, Quebec, Canada

Site Status

Sherbrooke, Quebec, Canada

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Santiago, , Chile

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Zadar, , Croatia

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Zagreb, , Croatia

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Vejle, , Denmark

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Tallinn, , Estonia

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Tartu, , Estonia

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Agarismo, , Mexico

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Amsterdam, , Netherlands

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Krakow, , Poland

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Warsaw, , Poland

Site Status

Bucharest, , Romania

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Cluj-Napoca, , Romania

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Iasi, Jud. Iasi, , Romania

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Johannesburg, , South Africa

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Parow, , South Africa

Site Status

Pretoria, , South Africa

Site Status

Somerset West, , South Africa

Site Status

Countries

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United States Argentina Brazil Bulgaria Canada Chile Croatia Denmark Estonia Mexico Netherlands Poland Romania South Africa

Other Identifiers

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3068A1-400

Identifier Type: -

Identifier Source: org_study_id

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