UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000030975
Receipt number R000032988
Scientific Title Relationship between equol producer status and intestinal microflora and effects of supplementation with equol and lactobionic acid on metabolic and bone parameters in healthy postmenopausal women
Date of disclosure of the study information 2018/02/01
Last modified on 2020/02/19 11:46:03

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Basic information

Public title

Relationship between equol producer status and intestinal microflora and effects of supplementation with equol and lactobionic acid on metabolic and bone parameters in healthy postmenopausal women

Acronym

Relationship between equol producer status and intestinal microflora and effects of supplementation with equol and lactobionic acid on metabolic and bone parameters in healthy postmenopausal women

Scientific Title

Relationship between equol producer status and intestinal microflora and effects of supplementation with equol and lactobionic acid on metabolic and bone parameters in healthy postmenopausal women

Scientific Title:Acronym

Relationship between equol producer status and intestinal microflora and effects of supplementation with equol and lactobionic acid on metabolic and bone parameters in healthy postmenopausal women

Region

Japan


Condition

Condition

Healthy postmenopausal women

Classification by specialty

Obstetrics and Gynecology Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the relationship between dietary factors and types of microflora as well as equol producer status.
To examine the effects of supplementation with equol and lactobionic acid on the risk factors of lifestyle related diseases such as arteriosclerosis and visceral fat accumulation, as well as markers related to bone metabolism, and compare those in relations to the background characteristics mentioned above.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Comparisons from baseline in the results of blood lipids (TG, HDL-C, LDL-C, T-CL), uric acid, hemoglobin A1c, arterial stiffness (baPWV), visceral fat area, and markers related to bone metabolism (vitamin D, PTH) after supplementation with equol and lactobionic acid for 12 weeks as well as comparisons based on background characteristics

Key secondary outcomes

Cor-relations between advanced glycation end products, dietary factors and equol producer status as well as types of microflora
Comparison from baseline in the results of menopausal rating scale after supplementation with equol and lactobionic acid every four weeks
Monitoring of adverse effects of supplementation every four weeks


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Pseudo-randomization


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

30 women taking 3 capsules of equol(total dose
of 10 mg) and lactobionic acid daily for 12 weeks

Interventions/Control_2

30 women not taking the above supplementation

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

50 years-old <=

Age-upper limit


Not applicable

Gender

Female

Key inclusion criteria

-Healthy postmenopausal (primary) women aged 50 years and above
-Those undergoing medical checkup at Sendai medical Center
-Those who can come to the clinic every month since the beginning of the study to have interview or investigations
-Those who can take the supplementation daily and take daily notes throughout the study period (12 weeks)

Key exclusion criteria

-Those with history of allergy to soy foods, dairy products or Brewer's yeast
-Those who start taking medications or functional food that could affect the result of the study
-Those under hormone replacement therapy or medications that could affect the blood hormone level
-Others identified inappropriate by the investigator physicians

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Yoko
Middle name
Last name Ishigaki

Organization

Shinkokai Medical Corporation

Division name

Sendai General Health Screening Clinic

Zip code

980-0811

Address

Sendai Trust Tower 4F, 1-9-1 Ichiban-cho, Aoba-ku, Sendai-shi, Miyagi prefecture

TEL

022-722-3770

Email

yoko.ishigaki@shinkokai.jp


Public contact

Name of contact person

1st name Megumi
Middle name
Last name Kato

Organization

Shinkokai Medical Corporation

Division name

Sendai General Health Screening Clinic

Zip code

980-0811

Address

Sendai Trust Tower 4F, 1-9-1 Ichiban-cho, Aoba-ku, Sendai-shi, Miyagi prefecture

TEL

022-722-3770

Homepage URL


Email

megumi.kato@shinkokai.jp


Sponsor or person

Institute

Supplement department, Advanced Medical Care Inc.

Institute

Department

Personal name



Funding Source

Organization

Supplement department, Advanced Medical Care Inc.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Hamamatsucho Hamasite Clinic, Midtown Clinic Medical Corporation

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Shinkokai Medical Corporation

Address

SVAX Nishi-shinnbashi Building, 2-39-3 Nishi-shinbashi, Minato-ku, Tokyo

Tel

03-5408-8181

Email

chie.nakajima@shinkokai.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

せんだい総合健診クリニック(宮城県)


Other administrative information

Date of disclosure of the study information

2018 Year 02 Month 01 Day


Related information

URL releasing protocol

https://www.ncbi.nlm.nih.gov/pubmed/30188331

Publication of results

Partially published


Result

URL related to results and publications

https://www.ncbi.nlm.nih.gov/pubmed/30188331

Number of participants that the trial has enrolled

60

Results

Women receiving equol supplement showed improved arterial stiffness and climacteric symptoms. Significant improvement in skin auto-fluorescence and visceral fat area was observed in equol producers.
Almost all participants have equol producing bacteria, however, there are only 20% of equol producers. Equol producing ability is related to gut microflora diversity.

Results date posted

2020 Year 02 Month 19 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

48 to 69 years of age
Postmenopausal women (natural absence of menstruation over at least 12 months since the last menstrual period or a bilateral oophorectomy procedure performed in a woman (surgical menopause)
Those who could visit the clinic every month for interviews or investigations during the study period
Those who could remain compliant with the daily supplementation regimen and record daily notes throughout the study period comprising 12 weeks

Participant flow

Recruitment
Enrollment
Baseline study
Intervention and follow-up monthly
Completion

Adverse events

There has been no adverse events reported due to equol supplement intervention.
There is no case who needs to stop taking the supplement.

Outcome measures

Inter-relationships between diets, gut microbiome and equol producing ability
Changes in metabolic and aging biomarkers after three months
Changes in menopausal symptoms after three months

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2017 Year 06 Month 26 Day

Date of IRB

2017 Year 07 Month 31 Day

Anticipated trial start date

2017 Year 08 Month 01 Day

Last follow-up date

2018 Year 03 Month 31 Day

Date of closure to data entry

2018 Year 06 Month 30 Day

Date trial data considered complete

2018 Year 09 Month 30 Day

Date analysis concluded

2019 Year 12 Month 31 Day


Other

Other related information

Equol production might not depend on the quantity, but on the quality of equol-producing bacteria. High microbial diversity might enhance equol production. Increasing microbial diversity through healthy lifestyle habits and habitual consumption of a wide variety of foods might be useful to maintain a healthy gut environment for equol production.


Management information

Registered date

2018 Year 01 Month 24 Day

Last modified on

2020 Year 02 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000032988


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name