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Dietary Soy Isoflavones for the Prevention of Cancer

Cincinnati Children's Hospital Medical Center logo

Cincinnati Children's Hospital Medical Center

Status

Unknown

Conditions

Unspecified Adult Solid Tumor, Protocol Specific

Treatments

Dietary Supplement: soy isoflavones

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT00003100
UCMC-CHMC-91-5-3
CDR0000065832
NCI-P97-0117

Details and patient eligibility

About

RATIONALE: Eating a diet rich in soy foods appears to reduce the risk of some types of cancer. Isoflavones are compounds found in soy food that may prevent the development of cancer.

PURPOSE: Clinical trial to determine the most effective amount and type of soy isoflavones needed in the diets of healthy men and women to prevent cancer.

Full description

OBJECTIVES: I. Determine the effect of varying the dietary intake of soy nuts on plasma levels and urinary excretion of isoflavones. II. Determine the effects of different food composition, along with age and gender of subjects, on plasma levels and urinary excretion of isoflavones.

OUTLINE: This is a two part study. In part I; participants are stratified according to menopausal status. In part II; participants are stratified according to gender and age (under 50 vs. over 50). Part I - Study participants are given 3 different amounts of toasted soy nuts separated by one month intervals. The sequence in which each amount is given is randomized. Blood and urine samples are taken to measure isoflavone levels. Part II - Study participants are given toasted soy nuts, soy milk, and tempeh on separate occasions separated by one month intervals. The sequence of each food is randomized. Blood and urine samples are taken to measure isoflavone levels.

PROJECTED ACCRUAL: 10 women, 5 premenopausal and 5 postmenopausal, will be accrued for part I of the study. 80 subjects, 40 women and 40 men, will be accrued for part II.

Enrollment

90 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

DISEASE CHARACTERISTICS: Healthy women and men

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Not specified Life expectancy: Not specified Hematopoietic: Not specified Hepatic: No chronic liver disease Renal: No chronic renal disease Cardiovascular: No chronic cardiovascular disease Pulmonary: No chronic pulmonary disease Other: No known allergy to soy proteins No consumption of soy protein within past week

PRIOR CONCURRENT THERAPY: Biologic therapy: No antibiotics within past 3 months Chemotherapy: Not specified Endocrine therapy: No oral contraceptive or hormone replacement therapy Radiotherapy: Not specified Surgery: Not specified Other: No medication likely to affect gastrointestinal, liver, or kidney function

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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