Isoflavones in Treating Women Who Have Breast Cancer and Are Planning to Undergo Mastectomy or Lumpectomy

September 21, 2012 updated by: H. Lee Moffitt Cancer Center and Research Institute

A Clinical Trial of the Action of Isoflavones in Breast Neoplasia: Administration Prior to Mastectomy or Lumpectomy-A Pilot Study

RATIONALE: Eating a diet rich in soy foods may slow the progression of some types of cancer. Isoflavones are compounds found in soy food that may slow the growth of breast cancer cells and prevent further development of breast cancer.

PURPOSE: Randomized pilot trial to study the effectiveness of isoflavones in preventing further development of breast cancer in women who are planning to undergo mastectomy or lumpectomy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

OBJECTIVES:

  • Determine the effect of soy protein isolate (isoflavones) on modulation of intermediate endpoint biomarkers (such as cell proliferation, apoptosis, and steroid hormones) in women planning to undergo mastectomy or lumpectomy for breast cancer.
  • Determine the effect of soy protein isolate on serum isoflavone levels in these patients.
  • Correlate changes in serum isoflavones with changes in cell proliferation, apoptosis, and hormonal levels in patients treated with this therapy.
  • Correlate the changes in cell proliferation and apoptosis with hormonal markers in patients treated with this therapy.

OUTLINE: This is a randomized, placebo-controlled, double-blind study. Patients are stratified according to the phase of the menstrual cycle at time of biopsy and time of surgery (follicular phase [i.e., during first 7 days of menstrual cycle] vs luteal phase [i.e., after day 7 of the menstrual cycle]). Patients are randomized to one of two treatment arms.

  • Arm I: Patients receive oral soy protein isolate twice daily and oral multivitamins once daily.
  • Arm II:Patients receive oral placebo twice daily and oral multivitamins once daily.

In both arms, treatment continues for 2-4 weeks depending on time from study entry to planned surgical procedure.

PROJECTED ACCRUAL: A total of 106 patients (53 per treatment arm) will be accrued for this study within 18 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85006-2726
        • CCOP - Western Regional, Arizona
    • Florida
      • Tampa, Florida, United States, 33612-9497
        • H. Lee Moffitt Cancer Center and Research Institute
    • Georgia
      • Savannah, Georgia, United States, 31406
        • Coastal Hematology and Oncology, P.C. - Savannah
    • Missouri
      • Springfield, Missouri, United States, 65807
        • Hulston Cancer Center at Cox Medical Center South
      • Springfield, Missouri, United States, 65804-2263
        • St. John's Regional Health Center
    • New York
      • Bronx, New York, United States, 10466
        • Comprehensive Cancer Center at Our Lady of Mercy Medical Center
    • North Dakota
      • Fargo, North Dakota, United States, 58122
        • CCOP - Merit Care Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

DISEASE CHARACTERISTICS:

  • Undergoing breast biopsy for any stage breast cancer

    • No excisional biopsy
    • At least one core biopsy block must contain carcinoma
  • Definitive surgery (mastectomy or lumpectomy) planned for 2-4 weeks after registration to this study

  • Hormone receptor status:

    • Not specified

PATIENT CHARACTERISTICS:

Age:

  • 18 and over

Sex:

  • Female

Menopausal status:

  • Premenopausal

Performance status:

  • Not specified

Life expectancy:

  • Not specified

Hematopoietic:

  • Not specified

Hepatic:

  • No known prior hepatic disease

Renal:

  • No known prior renal disease

Other:

  • Not pregnant or nursing
  • Fertile patients must use effective non-hormonal contraception
  • No other prior malignancy except nonmelanoma skin cancer
  • No known prior thyroid disease
  • No adherence to vegan diet or other special dietary requirements that would preclude study participation
  • No allergy to study agent
  • No obesity (body mass index greater than 32)

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • Not specified

Chemotherapy:

  • Not specified

Endocrine therapy:

  • No concurrent birth control pills or other hormonal therapy
  • No concurrent thyroid hormone replacement medications

Radiotherapy:

  • Not specified

Surgery:

  • See Disease Characteristics

Other:

  • More than 30 days since prior antibiotics
  • More than 4 weeks since prior soy products
  • No routine consumption of greater than 40 mg of soy/day
  • No other concurrent nutritional supplements, including modular supplements of other isoflavones

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Soy protein isolate

Administration Prior to Mastectomy or Lumpectomy.

Patients receive oral soy protein isolate twice daily and oral multivitamins once daily.

Treatment continues for 2-4 weeks depending on time from study entry to planned surgical procedure.
Dietary supplement: Soy protein isolate
Arm I: Patients receive oral soy protein isolate twice daily and oral multivitamins once daily.
Other Names:
  • isoflavones
Placebo Comparator: Placebo

Administration Prior to Mastectomy or Lumpectomy.

Patients receive oral placebo twice daily and oral multivitamins once daily.

Treatment continues for 2-4 weeks depending on time from study entry to planned surgical procedure.
Other: Placebo
Arm II: Patients receive oral placebo twice daily and oral multivitamins once daily.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Occurrence of Soy Protein Isolate Effect
Time Frame: 1 Year
Determine the effect of soy protein isolate (isoflavones) on modulation of intermediate endpoint biomarkers (such as cell proliferation, apoptosis, and steroid hormones) in women planning to undergo mastectomy or lumpectomy for breast cancer.
1 Year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Occurrence of Effect on Serum Isoflavone Levels
Time Frame: 1 Year
Determine the effect of soy protein isolate on serum isoflavone levels in these patients.
1 Year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
H. Lee Moffitt Cancer Center and Research Institute

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Nagi B. Kumar, PhD, RD, FADA, H. Lee Moffitt Cancer Center and Research Institute

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2002

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2003

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2003

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 13, 2002

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 26, 2003

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 27, 2003

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 24, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 21, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MCC-13021
  • NCI-5348 (Other Identifier: NCI)
  • NCI-P02-0214 (Other Identifier: NCI)
  • 0104 (CCOP)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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