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HypertensionNCT01270737

Whole Soy and Daidzein on Reduction of Blood Pressure in Postmenopausal Chinese Women

A study testing Whole soy (soy flour), daidzein and milk powder in people with Hypertension, run by Chinese University of Hong Kong at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The investigators hypothesize that whole soy or purified daidzein alone could reduce blood pressure and CVD risks in equol-producing menopausal Chinese women. Read more about this study

Who is it for?
Ages 48 to 70 years, women onlyHealthy volunteers can take part
Conditions the study is for
Hypertension
What is being tested?
Whole soy (soy flour), daidzein and milk powder
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
270 participants
Where
1 siteChina
Study dates
Mar 2011to Dec 2012
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 48 to 70 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Postmenopausal Chinese women with prehypertension or stage 1 hypertension

Who cannot join

  • Medical treatment for blood pressure or lipids reduction hormones replacement therapy in recent 3 months, chronic renal or hepatic diseases

Trial locations and contacts

1 site in 1 country.

Suzanne C Ho, PhD contact

852-22528775

suzanneho@cuhk.edu.hk

China1 site
  • Center of Research and Promotion of Women's Health

    Hong Kong

Other trials in China

About this study

Official title: A Double-blind Randomized Controlled Trial on Whole Soy and Daidzein Supplementation on Reduction of Blood Pressure in Prehypertensive Postmenopausal Chinese Women

The investigators hypothesize that whole soy or purified daidzein alone could reduce blood pressure and CVD risks in equol-producing menopausal Chinese women.

Read the detailed description

Hypertension is an important risk factor for cardiovascular diseases. Substantial evidence has also shown that prehypertension [systolic blood pressure (BP) 120-139 mm Hg or diastolic BP 80-89 mm Hg] is the strongest predictor of incident hypertension and is associated with elevated risk of cardiovascular diseases. Thus, prehypertension and its progression to hypertension have enormous public health implications. Soybean contains many beneficial components, among which isoflavones have received most research attention. Recently researchers have investigated their influences on vascular functions but only a handful of studies have focused on BP reduction as the primary outcome.The role of whole soy or daidzein on BP is yet unclear.

The investigators hypothesize that whole soy (soy flour) or purified daidzein alone could reduce BP,and decrease CVD risks in menopausal women with prehypertension or initial untreated hypertension. The investigators propose to perform a 24-week double-blind, randomized, placebo-controlled trial in postmenopausal women with prehypertension or stage 1 hypertension. The primary objective is to verify if whole soy (soy flour) or purified daidzein alone has anti-hypertensive effects at a dosage of habitual high soy intake.

Conditions
Hypertension
Being tested
Whole soy (soy flour), daidzein, milk powder
Medical subject headings
Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Whole soy (soy flour)Dietary supplement

    Also called soy flour

    40g soy flour per day for six months

  • daidzeinDietary supplement

    66mg daidzein per day for six months

  • milk powderDietary supplement

    Also called dry milk

    40g low-fat dry milk per day for six months

Study groups in NCT01270737
Study groupRoleWhat they receive
Whole soyActive comparatorNot described
Receives: Dietary Supplement: Whole soy (soy flour)
daidzeinActive comparatorNot described
Receives: Dietary Supplement: daidzein
milk powderPlacebo comparatorNot described
Receives: Dietary Supplement: milk powder

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 24 hours blood pressure

    24 hour ambulatory blood pressure recording

    Measured: 1 year

Secondary outcomes (1)
  1. Cardiovascular Disease (CVD) risks

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jan 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionJun 2012 (estimated)
  4. Study completionDec 2012 (estimated)

Resources

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
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
270 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01270737
Sponsor's protocol ID
CUHKGRF465810
Status last verified
Jul 2010
First submitted
4 Jan 2011
Last updated
5 Jan 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • Liu ZM, Chen B, Li S, Li G, Zhang D, Ho SC, Chen YM, Ma J, Qi H, Ling WH. Effect of whole soy and isoflavones daidzein on bone turnover and inflammatory markers: a 6-month double-blind, randomized controlled trial in Chinese postmenopausal women who are equol producers. Ther Adv Endocrinol Metab. 2020 Jun 18;11:2042018820920555. doi: 10.1177/2042018820920555. eCollection 2020.

    PubMed 32595918
  • Liu ZM, Li G, Zhang D, Ho SC, Chen YM, Ma J, Huang Q, Li S, Ling WH. Effect of whole soy and purified daidzein on androgenic hormones in chinese equol-producing post-menopausal women: a six-month randomised, double-blinded and Placebo-Controlled trial. Int J Food Sci Nutr. 2020 Aug;71(5):644-652. doi: 10.1080/09637486.2020.1712682. Epub 2020 Jan 9.

    PubMed 31914834
  • Liu ZM, Ho SC, Chen YM, Tomlinson B, Ho S, To K, Woo J. Effect of whole soy and purified daidzein on ambulatory blood pressure and endothelial function--a 6-month double-blind, randomized controlled trial among Chinese postmenopausal women with prehypertension. Eur J Clin Nutr. 2015 Oct;69(10):1161-8. doi: 10.1038/ejcn.2015.24. Epub 2015 Mar 18.

    PubMed 25782428
  • Liu ZM, Ho SC, Chen YM, Tang N, Woo J. Effect of whole soy and purified isoflavone daidzein on renal function--a 6-month randomized controlled trial in equol-producing postmenopausal women with prehypertension. Clin Biochem. 2014 Sep;47(13-14):1250-6. doi: 10.1016/j.clinbiochem.2014.05.054. Epub 2014 May 27.

    PubMed 24877660
  • Liu ZM, Ho CS, Chen YM, Woo J. Can soy intake affect serum uric acid level? Pooled analysis from two 6-month randomized controlled trials among Chinese postmenopausal women with prediabetes or prehypertension. Eur J Nutr. 2015 Feb;54(1):51-8. doi: 10.1007/s00394-014-0684-1.

    PubMed 24659208
  • Liu ZM, Ho SC, Chen YM, Ho S, To K, Tomlinson B, Woo J. Whole soy, but not purified daidzein, had a favorable effect on improvement of cardiovascular risks: a 6-month randomized, double-blind, and placebo-controlled trial in equol-producing postmenopausal women. Mol Nutr Food Res. 2014 Apr;58(4):709-17. doi: 10.1002/mnfr.201300499. Epub 2013 Nov 24.

    PubMed 24273218
  • Liu ZM, Ho SC, Woo J, Chen YM, Wong C. Randomized controlled trial of whole soy and isoflavone daidzein on menopausal symptoms in equol-producing Chinese postmenopausal women. Menopause. 2014 Jun;21(6):653-60. doi: 10.1097/GME.0000000000000102.

    PubMed 24149925
  • Liu ZM, Ho SC, Chen YM, Woo J. A six-month randomized controlled trial of whole soy and isoflavones daidzein on body composition in equol-producing postmenopausal women with prehypertension. J Obes. 2013;2013:359763. doi: 10.1155/2013/359763. Epub 2013 Aug 1.

    PubMed 23984051

Questions about this trial

What is this clinical trial studying?

A study testing Whole soy (soy flour), daidzein and milk powder in people with Hypertension, run by Chinese University of Hong Kong at 1 site in China.

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 1 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 5 Jan 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Suzanne C Ho, PhD (852-22528775, suzanneho@cuhk.edu.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

24 hours blood pressure (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01270737, which also lists 8 linked publications.

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 5 Jan 2011.

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