Study Results
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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COMPLETED
NA
12 participants
INTERVENTIONAL
1997-08-31
2004-06-30
Brief Summary
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PURPOSE: Randomized dietary intervention to study the effectiveness of a low-fat diet combined with either high fiber or low fiber on estrogen metabolism in healthy postmenopausal women.
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Detailed Description
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OUTLINE: This is a randomized study. Patients are randomized to one of 2 arms (dietary fat reduction with and without increased fiber). All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
PROJECTED ACCRUAL: 40 women will be accrued over 4 years.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
SINGLE
Study Groups
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fat reduction increased fiber
Patients are randomized to dietary fat reduction with increased fiber). All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
fat reduction with increased fiber
Patients are randomized to dietary fat reduction with increased fiber. All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
fat reduction without increased fiber
Patients are randomized to dietary fat reduction without increased fiber). All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
fat reduction without increased fiber
Patients are randomized to dietary fat reduction without increased fiber. All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
Interventions
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fat reduction with increased fiber
Patients are randomized to dietary fat reduction with increased fiber. All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
fat reduction without increased fiber
Patients are randomized to dietary fat reduction without increased fiber. All patient must successfully complete a dietary run-in phase for 4 weeks before randomization. During the run-in phase, patients are asked to maintain a food record for days 7-14. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 14, 21, and 28. Patients are given 3 prepackaged meals a day for 12 weeks. Patients must maintain a record of all food eaten and return all food containers to the center for documentation. Patients undergo radioisotopic infusion study of sex steroid metabolism on days 70, 77, and 84. At the end of the 12 weeks, patients meet with the dietitian for 30 minutes to receive instructions on maintaining a low fat, high fiber diet for the second phase of the study.
Eligibility Criteria
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Inclusion Criteria
PATIENT CHARACTERISTICS: Age: 50 to 69 Sex: Female Performance status: Not specified Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: At least 2 years since menopause In general good health Increased body fat (125%-175% of ideal body weight) Increased upper body fat (waist-to-hip circumference ratio greater than 0.85) Serum estradiol greater than 13 picograms per milliliter
PRIOR CONCURRENT THERAPY: No concurrent medication that can interfere with blood test results No hormone replacement therapy or thyroid hormones
50 Years
69 Years
FEMALE
No
Sponsors
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National Cancer Institute (NCI)
NIH
Jonsson Comprehensive Cancer Center
OTHER
Responsible Party
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Principal Investigators
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David Heber, MD
Role: STUDY_CHAIR
Jonsson Comprehensive Cancer Center
Locations
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Jonsson Comprehensive Cancer Center, UCLA
Los Angeles, California, United States
Countries
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Other Identifiers
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UCLA-HSPC-950942302
Identifier Type: OTHER
Identifier Source: secondary_id
NCI-P97-0112
Identifier Type: OTHER
Identifier Source: secondary_id
CDR0000065828
Identifier Type: -
Identifier Source: org_study_id
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