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CompletedNCT00055991Updated Feb 5, 2013

Bexarotene in Preventing Breast Cancer in Women at Genetic Risk

A Phase 1 interventional study of bexarotene in Breast Cancer, sponsored by Baylor Breast Care Center. Completed at 4 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-02-05.

Sponsored by Baylor Breast Care Center · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
87
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

RATIONALE: Chemoprevention therapy uses certain drugs to try to prevent the development or recurrence of cancer. It is not yet known whether bexarotene is effective in preventing breast cancer.

PURPOSE: Randomized clinical trial to study the effectiveness of bexarotene in preventing breast cancer in women who are at genetic risk of developing breast cancer.

Read the detailed description

OBJECTIVES:

  • Determine whether bexarotene can modify immunophenotypic markers related to breast cancer progression in women at high genetic risk for breast cancer.

OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to menopausal status (women with a uterus who have not had a menstrual period for more than 1 year vs any woman over 55 years old vs women 55 years and under without a uterus whose follicle-stimulating hormone is in the postmenopausal range). Patients are randomized to 1 of 2 treatment arms.

  • Arm I: Patients receive oral bexarotene once daily on days 1-28.
  • Arm II: Patients receive oral placebo as in arm I. In both arms, treatment continues in the absence of unacceptable toxicity or elevation of triglycerides to greater than 800 mg/dL. Patients undergo 2 breast biopsies in the same location on days 1 and 29.

Patients are followed at 30 days.

PROJECTED ACCRUAL: A total of 100 patients (50 per treatment arm) will be accrued for this study within 4 years.

02

Conditions studied

  • Breast Cancer

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Keywords

  • breast cancer
03

In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's enrollment of 87 is above the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

Baylor Breast Care Center is the lead sponsor of 16 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

DISEASE CHARACTERISTICS:

  • Known carrier of a BRCA-1 or BRCA-2 mutation

    • Copy of laboratory report stating results must be available for review OR
  • At risk for carrying a BRCA-1 or BRCA-2 mutation

    • At least 10% risk by Parmigiana probability model
  • Must have at least 1 breast that has never been involved with cancer and has not been irradiated
  • Hormone receptor status:

    • Not specified

PATIENT CHARACTERISTICS:

Age

  • 18 and over

Sex

  • Female

Menopausal status

  • Not specified

Performance status

  • Not specified

Life expectancy

  • Not specified

Hematopoietic

  • WBC greater than 4,000/mm\^3
  • Platelet count greater than 100,000/mm\^3
  • Hematocrit greater than 30%

Hepatic

  • Bilirubin no greater than 1.5 times upper limit of normal (ULN)
  • ALT no greater than 1.5 times ULN
  • Alkaline phosphatase no greater than 1.5 times ULN
  • Albumin no greater than 1.5 times ULN
  • No biliary tract disease

Renal

  • Creatinine no greater than 1.5 times ULN

Other

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception for 1 month before, during, and for 1 month after study therapy
  • Triglycerides normal
  • Thyroid-stimulating hormone and thyroxine normal
  • Willing to undergo 2 duplicate needle biopsies of the breast
  • Willing to undergo genetic testing for BRCA-1 and BRCA-2
  • No uncontrolled hyperlipidemia
  • No nontoxic goiter or thyroid enlargement
  • No severe underlying chronic illness or disease
  • No uncontrolled diabetes
  • No history of pancreatitis
  • No cancer within the past year except skin cancer or carcinoma in situ of the cervix (defined from the date of first diagnosis)
  • No concurrent alcohol use (greater than 3 drinks or its equivalent per day)

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • Not specified

Chemotherapy

  • More than 1 year since prior chemotherapy for a neoplasm

Endocrine therapy

  • More than 3 months since prior postmenopausal hormonal therapy (including estrogens or progestins)
  • More than 3 months since prior tamoxifen or other selective estrogen-receptor modulators
  • No concurrent hormone replacement therapy
  • Concurrent thyroid hormone supplementation allowed

Radiotherapy

  • See Disease Characteristics

Surgery

  • Not specified

Other

  • More than 30 days since prior investigational medications
  • More than 3 months since prior oral vitamin A supplements greater than the recommended daily requirement (5,000 IU) or therapeutic oral or topical vitamin A derivatives (e.g., isotretinoin)
  • No concurrent participation in a study of an investigational agent
  • No concurrent medications known to be associated with pancreatic toxicity or to increase triglyceride levels
05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
87 participants (actual)

Study arms

  • Experimental
    Bexarotene

    Bexarotene / Targretin

    Drug: bexarotene

  • Placebo comparator
    Sugar Pill

    Sugar pill / placebo

    Drug: bexarotene

Interventions

  • Drugbexarotene

    This drug is a retinoid. The anti-tumor action of retinoids, as well as their potential in chemoprevention, supports the need to further identify the spectrum of responsive tumors, to identify the molecular mechanisms associated with retinoid action, and to identify and develop new retinoids that have unique properties and an improved therapeutic index.

    Also known as: Targretin

06

What researchers measure

Primary outcomes

  1. Chemopreventive effect as determine by a modification of the immunophenotypic characteristics of normal breast tissue at day 29 during study treatment and day 30 after study completion

Secondary outcomes

  1. Apoptosis at day 29 during study treatment

07

Study locations

4 sites
  • Lombardi Comprehensive Cancer Center at Georgetown University Medical Center
    Washington, District of Columbia 20007, United States
  • M.D. Anderson Cancer Center at University of Texas
    Houston, Texas 77030-4009, United States
  • Dan L. Duncan Cancer Center at Baylor College of Medicine
    Houston, Texas 77030, United States
  • Cancer Therapy and Research Center
    San Antonio, Texas 78229, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 5, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00055991
Lead sponsor
Baylor Breast Care Center
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
Mar 7, 2003
Start date
Sep 2001
Primary completion
Sep 2006
Completion
Sep 2006
Last update
Feb 5, 2013

Study contacts

Richard M. Elledge, MD
study chair · Baylor College of Medicine

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2013. You cannot join it, but the record below documents what was studied.

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