Viewing Study NCT00010829



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Study NCT ID: NCT00010829
Status: COMPLETED
Last Update Posted: 2006-08-18
First Post: 2001-02-02

Brief Title: Macrobiotic Diet and Flax Seed Effects on Estrogens Phytoestrogens Fibrinolytic Factors
Sponsor: National Center for Complementary and Integrative Health NCCIH
Organization: National Center for Complementary and Integrative Health NCCIH

Study Overview

Official Title: Macrobiotic Diet and Flax Seed Effects on Estrogens Phytoestrogens Fibrinolytic Factors
Status: COMPLETED
Status Verified Date: 2006-08
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This study will assess whether alternative high phytoestrogen dietary interventions result in favorable effects on biological parameters that have been associated with hormone-dependent cancers cardiovascular disease and osteoporosis
Detailed Description: Broad health effects of endogenous and exogenous estrogens on diseases of aging including hormone-dependent cancers cardiovascular disease and osteoporosis are generally recognized For example estrogen replacement therapy ERT may increase the risk of subsequent breast and endometrial cancer but also decreases the risk of coronary disease and fractures Because of the increased cancer risk many women seek out alternatives to ERT Phytoestrogens plant compounds that have estrogenic effects have been a focus of interest as an alternative to ERT The isoflavones and lignans are two major classes of phytoestrogens that occur in the food supply Among the former soy foods have attracted much interest while among the latter whole grains and seeds are sources in a typical diet More specifically women consuming a macrobiotic diet have been observed to have extremely high levels of phytoestrogen metabolites in their urine perhaps 10 to 20 times that seen in women consuming an omnivorous diet Proponents of a macrobiotic diet have proposed that it is beneficial in the context of cancer therapy as well as for the prevention and treatment of cardiovascular disease

This study will investigate in a randomized three-arm study the effects of two interventions that are high in phytoestrogens on various parameters related to estrogen metabolism and fibrinolysis Approximately 120 women will be randomized to receive an American Heart Association AHA Step 1 diet an AHA Step 2 diet 10 gday flax seed or a macrobiotic dietary intervention Blood and urine samples will be drawn at baseline and at three six nine and twelve months to examine both short and long-term effects of these interventions Outcomes include blood and urine levels of total estrogens and estradiol and related metabolites antigens to plasminogen activator inhibitor-1 PAI-1 and tissue plasminogen activator t-PA fibrin D-dimer and von Willebrand Factor and endothelial function as measured by high-resolution ultrasound Blood levels of antioxidant vitamins and retinoids will also be examined

This study should provide information on whether these alternative high phytoestrogen dietary interventions result in favorable effects on these biological parameters that are related to risk of major diseases of aging

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
P50AT000090-01 NIH None httpsreporternihgovquickSearchP50AT000090-01