UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056403
Receipt number R000064390
Scientific Title The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults -A Systematic Review with Meta-analysis-:Protocol
Date of disclosure of the study information 2025/10/01
Last modified on 2024/12/09 13:26:26

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Basic information

Public title

The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol

Acronym

The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol

Scientific Title

The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol

Scientific Title:Acronym

The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol

Region

Japan


Condition

Condition

The subjects are healthy volunteers (excluding those under 20, pregnant women, and lactating women, who were not suffering from any diseases).
Studies that are relevant to the outcome in question and include participants being treated as patients will be excluded.

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study was to determine whether the intake of foods containing 'coffee bean-derived mannooligosaccharides' has the ability to promote the absorption of calcium in the diet in healthy adults, specifically from the urinary calcium content (creatinine corrected) (mg/g Cr) at each intake time.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The primary outcome is the effect of promoting intestinal absorption of calcium.
Specifically, the urinary calcium content (creatinine corrected) (mg/g Cr) at each hour of intake will be the primary endpoint.

Key secondary outcomes



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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

P-Participant:The subjects are healthy volunteers (excluding those under 20, pregnant women, and lactating women, who were not suffering from any diseases).
Studies that are relevant to the outcome in question and include participants being treated as patients will be excluded.
I-Intervention:The intervention condition is oral intake of a test product containing at least 0.5 g of 'coffee bean-derived mannooligosaccharides' (any form of intake).
C-Comparison:A comparison was made among one receiving a placebo, another serving as a control group in which food was substituted with food that does not contain 'coffee-derived mannooligosaccharides' and group with no intervention.
O-Outcome measurement:
Primary outcomes:The primary outcome is the effect of promoting intestinal absorption of calcium.Specifically, the urinary calcium content (creatinine corrected) (mg/g Cr) at each hour of intake will be the primary endpoint.
S-Study design:The research designs used in the literature were randomized parallel group controlled trials, quasi-randomized controlled trials, non-randomized controlled trials, and crossover studies. In addition, the languages of presentation were documents written in Japanese and English. In principle, the form of presentation should be an original paper, but short reports and reports may be accepted if the content can be identified. To avoid publication bias, studies that include results published in clinical trial registration databases are also eligible. For the time period, studies published from the first time the databases were opened or loaded to the date of the search will be included in the search.

Key exclusion criteria

Abstracts of conference presentations (conference proceedings) will be excluded they are considered insufficiently descriptive. Other gray documents will be excluded it is difficult to confirm their appropriateness.

Target sample size



Research contact person

Name of lead principal investigator

1st name Toshio
Middle name
Last name Kumao

Organization

Ajinomoto AGF, INC.

Division name

Technology Development Dept. Technical Research and Development Institute

Zip code

210-8681

Address

1-1, Suzuki-cho Kawasaki-ku, Kawasaki-shi Kanagawa Pref.

TEL

044-223-4157

Email

toshio.kumaoh.hv8@agf.co.jp


Public contact

Name of contact person

1st name Yuki
Middle name
Last name Ishitani

Organization

Ajinomoto AGF, INC.

Division name

Technology Development Dept. Technical Research and Development Institute

Zip code

2108681

Address

1-1, Suzuki-cho Kawasaki-ku, Kawasaki-shi Kanagawa Pref.

TEL

044-223-4157

Homepage URL


Email

yuki.ishitani.4yu@agf.co.jp


Sponsor or person

Institute

Ajinomoto AGF, INC.

Institute

Department

Personal name



Funding Source

Organization

Ajinomoto AGF, INC.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Review team
Mr. Katsuya Suzuki, Ajinomoto AGF, Inc.
Dr. Shigeyoshi Fujii, Former employees of Ajinomoto AGF, Inc.
Research Collaborator
Professor Hiroharu Kamioka, Tokyo University of Agriculture
Holders of library librarian qualifications

Name of secondary funder(s)



IRB Contact (For public release)

Organization

N/A

Address

N/A

Tel

044-223-4157

Email

yuki.ishitani.4yu@agf.co.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



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 01 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

2024 Year 12 Month 04 Day

Date of IRB


Anticipated trial start date

2024 Year 12 Month 16 Day

Last follow-up date

2025 Year 04 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Information sources
10 databases and research registries will be searched. The search targets studies published from the time the site was first established or installed up to the date of each search.

Selection process
Based on the eligibility criteria (PICOS), two research reviewers (SF and YI) will independently conduct a first screening (abstract confirmation level) and a second screening (full text level) of the articles; they will then cross-check them and decide in consultation, including TK, on any inconsistencies.

Risk of bias in individual studies
The risk of bias assessment of individual studies is carried out using a 12-item checklist arranged by SR expert HK based on the Cochrane Collaboration Programme Review Manual.

Data synthesis
For meta-analysis eligibility, meta-analyses will be conducted using Review Manager for studies with low or medium risk of bias and no heterogeneity in PICOS. Any missing data in each of the included studies will be excluded, but authors will be contacted and figures will be incorporated if known.

Meta-bias
If integration is possible, it is shown in a funnel plot and an Egger test is performed. Heterogeneity is considered to be present when the probability of significance is 10% or less.

Indirectness
Indirectness is assessed on the basis of conformity with PICOS . It is rated 'low (0)' if all PICOS are met, 'medium (-1)' if there are minor deviations from any of the PICOS and 'high (-2)' if there are significant deviations from any of the PICOS.

Imprecision
Imprecision is graded as precise (0) for a total of 80 or more cases, slightly imprecise (-1) for 40-79 cases and imprecise (-2) for less than 40 cases.

Inconsistency
Inconsistency is assessed by I2 values and tests of heterogeneity based on meta-analysis effect estimates.


Management information

Registered date

2024 Year 12 Month 09 Day

Last modified on

2024 Year 12 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064390