CVD Risk and Health in Postmenopausal Phytoestrogen Users

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00000613
Recruitment Status : Completed
First Posted : October 28, 1999
Last Update Posted : February 29, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To determine the acceptability and benefits of use of a dietary supplement of the phytoestrogen, genistein, versus placebo on heart disease risk factors, bone density, and psychosocial outcomes in postmenopausal women.

Condition or disease Intervention/treatment Phase
Bone Diseases Cardiovascular Diseases Coronary Disease Depression Heart Diseases Myocardial Ischemia Osteoporosis Postmenopause Behavioral: dietary supplements Drug: genistein Behavioral: diet, soy proteins Phase 2

Detailed Description:


Estrogen replacement therapy is beneficial for heart disease risk factors as well as for bone density. However, a large proportion of postmenopausal women are not compliant with therapeutic regimens. Phytoestrogens are naturally occurring compounds found in plants and soy products that have estrogenic effects, and may represent an alternative treatment for the prevention of heart disease and osteoporosis in postmenopausal women. However, few intervention trials have examined the extent to which it is possible to improve heart disease risk factors, bone density, and quality of life in postmenopausal women through use of a dietary supplement of phytoestrogen.


Randomized, double-blind, placebo-controlled study. A total of 210 women were enrolled in the study to be followed for one to two years. The women were randomized to phytoestrogen treatment or to placebo. Data are collected at baseline visits, at one and three month follow-up telephone calls, and at 6, 12, and 24 month follow-up clinic visits. Measures of high density lipoprotein and other heart disease risk factors, hip and spine bone density, and depression, life satisfaction, and quality of well-being are obtained. Cross-sectional and longitudinal comparisons of treatment and placebo groups are performed before and after adjustment and stratification for potentially confounding covariates.

The study was renewed in March 2002 to assess whether the women treated with phytoestrogens had lowered homocysteine, interleukin-6, C-reactive protein, E-selectin, and decreased obesity and fat mass over two years.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Study Type : Interventional  (Clinical Trial)
Allocation: Randomized
Masking: Double
Primary Purpose: Prevention
Study Start Date : April 1997
Actual Study Completion Date : December 2004

Resource links provided by the National Library of Medicine

Drug Information available for: Genistein

Information from the National Library of Medicine

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Ages Eligible for Study:   45 Years to 74 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Postmenopausal women, ages 45 to 74.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00000613

Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: Donna Kritz-Silverstein University of California, San Diego

Publications: Identifier: NCT00000613     History of Changes
Other Study ID Numbers: 116
R01HL057790 ( U.S. NIH Grant/Contract )
First Posted: October 28, 1999    Key Record Dates
Last Update Posted: February 29, 2016
Last Verified: December 2005

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases
Coronary Disease
Coronary Artery Disease
Myocardial Ischemia
Bone Diseases
Pathologic Processes
Bone Diseases, Metabolic
Musculoskeletal Diseases
Metabolic Diseases
Vascular Diseases
Arterial Occlusive Diseases
Anticarcinogenic Agents
Protective Agents
Physiological Effects of Drugs
Antineoplastic Agents
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Estrogens, Non-Steroidal
Hormones, Hormone Substitutes, and Hormone Antagonists