AtherosclerosisNCT00201162
Soy and Lipoproteins in Postmenopausal Women
A study testing Soy in people with Atherosclerosis and Cardiovascular Diseases, run by Johns Hopkins University.
Trial summary
To determine the effects of soy on lipids, lipoproteins and lipoprotein subclass in a sample of African-American and white postmenopausal women with low-density lipoprotein (LDL) cholesterol elevations that may increase their lifetime risk for cardiovascular disease but would not qualify for definite pharmacotherapy… Read more about this study
- Who is it for?
- Ages 50 to 100 years, women only
- Conditions the study is for
- Atherosclerosis, Cardiovascular Diseases, Heart Diseases
- What is being tested?
- Soy
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 216 participants
- Where
- No sites listed yet
- Study dates
- Sep 2001to Aug 2006
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 50 to 100 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- postmenopausal women
- elevated cholesterol
Who cannot join
None listed.
About this study
To determine the effects of soy on lipids, lipoproteins and lipoprotein subclass in a sample of African-American and white postmenopausal women with low-density lipoprotein (LDL) cholesterol elevations that may increase their lifetime risk for cardiovascular disease but would not qualify for definite pharmacotherapy under current guidelines.
Read the detailed description
BACKGROUND:
Cardiovascular disease (CVD) remains the leading cause of mortality and disability in postmenopausal women. Menopause alters serum lipids and lipoproteins to produce a more atherogenic lipid profile that may contribute significantly to the increased risk for the development of CVD over the lifetime of women. Clinical trials have demonstrated a beneficial effect of soy protein containing isoflavones (soy) on plasma lipids and lipoproteins; however, these studies included small numbers of postmenopausal women and virtually none included sufficient African-American women. In addition, no published data existed in 2001 on the impact of soy on atherogenic lipoprotein subclasses in postmenopausal women.
DESIGN NARRATIVE:
The study was a double blind, parallel group, randomized clinical trial. A total of 216 healthy postmenopausal women (50 percent African-American) with LDL cholesterol between 130 mg/dL and 190 mg/dL were enrolled. Following a pre-randomization run-in period on a NCEP Step I diet, women were randomized to receive soy containing isoflavones or casein dietary supplements for 3 months. Major outcome variables were assessed in both groups at baseline and again at 3 months. It was hypothesized that soy supplementation would result in significantly greater reduction in LDL cholesterol, LDL particle concentration, and prevalence of dense LDL particles and improvement in menopausal quality of life compared with placebo and that these effects would be comparable in African-Americans and whites. This was the first study to determine whether a natural plant product could ameliorate the unfavorable changes in known and novel lipid risk factors that are a consequence of menopause in both African-American and white women. The unique transitional outcomes explored in this study added substantially to the limited body of knowledge of the effects of soy. Evaluation of this nutritional alternative to hormone replacement therapy (HRT) that may provide a beneficial effect on lipid risk factors and menopausal symptoms but would be free of the adverse effects on triglycerides, the breast and uterus, and thrombotic events associated with HRT could have significant public health implications for postmenopausal women.
- Conditions
- Atherosclerosis, Cardiovascular Diseases, Heart Diseases, Menopause
- Being tested
- Soy, Placebo
- Medical subject headings
- Atherosclerosis, Cardiovascular Diseases, Heart Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SoyDietary supplement
Dietary supplement of isolated soy protein containing isoflavones
PlaceboDietary supplement
dietary supplement casein placebo
| Study group | Role | What they receive |
|---|---|---|
| Intervention | Experimental | dietary supplement soy protein containing isoflavones Receives: Dietary Supplement: Soy |
| Placebo | Placebo comparator | dietary supplement casein placebo Receives: Dietary Supplement: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
LDL cholesterol level
LDL cholesterol will be measured in blood in mg/dl
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Sep 2005 (estimated)
- Study startSep 2001
- Primary completionAug 2006
- Study completionAug 2006
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for AtherosclerosisStudies of the same condition, open and under way.
- More trials run by Johns Hopkins UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 216 participants (actual)
Sponsor and investigators
- Lead sponsor
- Johns Hopkins University
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Sponsor
- Investigators
- Jerilyn Allen, Principal investigator, Johns Hopkins University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00201162
- Sponsor's protocol ID
- 280
- Other IDs
- R01HL070553
- Status last verified
- Aug 2018
- First submitted
- 16 Sep 2005
- Last updated
- 31 Aug 2018
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 31 Aug 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Soy and Lipoproteins in Postmenopausal Women
- ClinicalTrials.gov ID
- NCT00201162
- Acronym / sponsor ID
- 280
- Conditions
- Atherosclerosis, Cardiovascular Diseases, Heart Diseases, Menopause
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 216 participants (actual)
- Lead sponsor
- Johns Hopkins UniversityUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Sep 2001
- Primary completion
- Aug 2006 (actual)
- Study completion
- Aug 2006 (actual)
- First posted
- 20 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To determine the effects of soy on lipids, lipoproteins and lipoprotein subclass in a sample of African-American and white postmenopausal women with low-density lipoprotein (LDL) cholesterol elevations that may increase their lifetime risk for cardiovascular disease but would not qualify for definite pharmacotherapy under current guidelines.
Detailed description
BACKGROUND:
Cardiovascular disease (CVD) remains the leading cause of mortality and disability in postmenopausal women. Menopause alters serum lipids and lipoproteins to produce a more atherogenic lipid profile that may contribute significantly to the increased risk for the development of CVD over the lifetime of women. Clinical trials have demonstrated a beneficial effect of soy protein containing isoflavones (soy) on plasma lipids and lipoproteins; however, these studies included small numbers of postmenopausal women and virtually none included sufficient African-American women. In addition, no published data existed in 2001 on the impact of soy on atherogenic lipoprotein subclasses in postmenopausal women.
DESIGN NARRATIVE:
The study was a double blind, parallel group, randomized clinical trial. A total of 216 healthy postmenopausal women (50 percent African-American) with LDL cholesterol between 130 mg/dL and 190 mg/dL were enrolled. Following a pre-randomization run-in period on a NCEP Step I diet, women were randomized to receive soy containing isoflavones or casein dietary supplements for 3 months. Major outcome variables were assessed in both groups at baseline and again at 3 months. It was hypothesized that soy supplementation would result in significantly greater reduction in LDL cholesterol, LDL particle concentration, and prevalence of dense LDL particles and improvement in menopausal quality of life compared with placebo and that these effects would be comparable in African-Americans and whites. This was the first study to determine whether a natural plant product could ameliorate the unfavorable changes in known and novel lipid risk factors that are a consequence of menopause in both African-American and white women. The unique transitional outcomes explored in this study added substantially to the limited body of knowledge of the effects of soy. Evaluation of this nutritional alternative to hormone replacement therapy (HRT) that may provide a beneficial effect on lipid risk factors and menopausal symptoms but would be free of the adverse effects on triglycerides, the breast and uterus, and thrombotic events associated with HRT could have significant public health implications for postmenopausal women.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Intervention | Experimental | Dietary Supplement: Soydietary supplement soy protein containing isoflavones |
| Placebo | Placebo comparator | Dietary Supplement: Placebodietary supplement casein placebo |
Who may qualify
- Ages
- 50 to 100 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- postmenopausal women
- elevated cholesterol
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SoyDietary supplement of isolated soy protein containing isoflavones | Dietary supplement | Intervention |
| Placebodietary supplement casein placebo | Dietary supplement | Placebo |
Primary outcome
LDL cholesterol level
Time frame: 3 months
LDL cholesterol will be measured in blood in mg/dl
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Aug 2018.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jerilyn Allen principal investigator
Johns Hopkins University
Questions about this trial
What is this clinical trial studying?
A study testing Soy in people with Atherosclerosis and Cardiovascular Diseases, run by Johns Hopkins University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 31 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
LDL cholesterol level (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Aug 2018.