UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059995
Receipt number R000068615
Scientific Title Systematic Review and Meta-Analysis on the Effects of Cocoa Flavanol Intake on Blood Pressure and Its Implications for Cardiovascular Disease Risk Reduction
Date of disclosure of the study information 2025/12/05
Last modified on 2025/12/05 14:56:16

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Basic information

Public title

Systematic Review and Meta-Analysis on the Effects of Cocoa Flavanol Intake on Blood Pressure and Its Implications for Cardiovascular Disease Risk Reduction

Acronym

Systematic Review and Meta-Analysis on the Effects of Cocoa Flavanol Intake on Blood Pressure and Its Implications for Cardiovascular Disease Risk Reduction

Scientific Title

Systematic Review and Meta-Analysis on the Effects of Cocoa Flavanol Intake on Blood Pressure and Its Implications for Cardiovascular Disease Risk Reduction

Scientific Title:Acronym

Systematic Review and Meta-Analysis on the Effects of Cocoa Flavanol Intake on Blood Pressure and Its Implications for Cardiovascular Disease Risk Reduction

Region

Japan


Condition

Condition

Healthy adult

Classification by specialty

Cardiology Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to comprehensively analyze the effects of cocoa flavanol intake on blood pressure and to clarify its association with cardiovascular disease (CVD) risk reduction.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Systolic blood pressure and diastolic blood pressure

Key secondary outcomes

Flow-mediated dilation, pulse wave velocity and ankle-brachial index


Base

Study type

Others,meta-analysis etc


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Interventional studies involving healthy adults or individuals with hypertension, including stage 1 to 3 hypertension.
Studies that report blood pressure (systolic and/or diastolic) as a primary or secondary outcome.
Randomized controlled trials (RCTs) with placebo or non-intake control groups.

Key exclusion criteria

Studies involving minors or pregnant and lactating women.
Studies using an intervention product where the specific content of cacao flavanols is not specified.
Studies using an intervention product that contains ingredients, other than cacao flavanols, which could potentially affect blood pressure.
Studies using a control product that contains ingredients which could potentially affect blood pressure.
Studies that include co-interventions, such as dietary modifications or exercise, which could potentially affect blood pressure.

Target sample size



Research contact person

Name of lead principal investigator

1st name Norikazu
Middle name
Last name Watanabe

Organization

Yakujihou Marketing Jimusho Co., Ltd.

Division name

None

Zip code

100-6162

Address

3rd Floor, Sanno Park Tower, 2-11-1 Nagatacho, Chiyoda-ku, Tokyo 100-6162, Japan

TEL

03-6205-3546

Email

watanabe@yakujihou-marketing.co.jp


Public contact

Name of contact person

1st name Norikazu
Middle name
Last name Watanabe

Organization

Yakujihou Marketing Jimusho Co., Ltd.

Division name

None

Zip code

100-6162

Address

3rd Floor, Sanno Park Tower, 2-11-1 Nagatacho, Chiyoda-ku, Tokyo 100-6162, Japan

TEL

03-6205-3546

Homepage URL


Email

watanabe@yakujihou-marketing.co.jp


Sponsor or person

Institute

Meiji Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Meiji Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Not applicable (Systematic review)

Address

Not applicable (Systematic review)

Tel

Not applicable (Systematic review)

Email

Not applicable (Systematic review)


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



Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 05 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 12 Month 05 Day

Date of IRB


Anticipated trial start date

2025 Year 12 Month 08 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This research review will be conducted in accordance with PRISMA2020


Management information

Registered date

2025 Year 12 Month 05 Day

Last modified on

2025 Year 12 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068615