UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060379
Receipt number R000069068
Scientific Title Effects of calcium alginate on blood sodium concentration -A preliminary study in healthy adult males-
Date of disclosure of the study information 2026/01/18
Last modified on 2026/01/16 15:49:42

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Basic information

Public title

Effects of calcium alginate on blood sodium concentration
-A preliminary study in healthy adult males-

Acronym

Effects of calcium alginate on blood sodium concentration

Scientific Title

Effects of calcium alginate on blood sodium concentration
-A preliminary study in healthy adult males-

Scientific Title:Acronym

Effects of calcium alginate on blood sodium concentration

Region

Japan


Condition

Condition

Healthy subjects

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the inhibitory effect of calcium alginate on blood sodium elevation.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Area under the curve of postprandial blood sodium levels over time (AUC).

Maximum postprandial blood sodium levels (Cmax).

Blood sodium levels (C) at each measurement point.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Self control

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Period I: Salt-loading beverage + placebo
Period II: Salt-loading beverage + Test Substance A
Period III: Salt-loading beverage + Test Substance B
Period IV: Salt-loading beverage only

The intervention sequence will follow the order of Period I, Period II, Period III, and Period IV, with each intervention administered as a single dose.

A washout period of at least one week will be implemented between each period.

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

Key inclusion criteria

- Male participants who are 18 years of age or older at the time of consent.

- Those who have fully understood the purpose and safety of this study as stated in the "Research Cooperation Consent Explanation Form" and have given their consent.

Key exclusion criteria

- Subjects with suspected glucose metabolism disorders or diabetes (including those currently undergoing diabetes treatment, those with fasting blood glucose levels above 125 mg/dL or below 60 mg/dL, those with an HbA1c level of 6.5% or higher, and those taking medications or supplements that affect glucose metabolism)
- Subjects with or a history of serious illnesses such as high blood pressure, kidney disease, diabetes, liver disease, ischemic heart disease, or digestive system disorders
- Subjects whose BMI at the time of provisional registration falls outside the 95% confidence interval (upper or lower limit) of the BMI distribution for all applicants
- Subjects whose HIV antigen/antibody, HBV, HCV, or syphilis tests at the screening test are positive
- Subjects with obvious abnormalities in hematology or biochemistry tests at the screening test
- Subjects who may develop allergic reactions to study-related foods
- Subjects with excessive alcohol or smoking habits (drinking more than 1 go of sake per day, equivalent to 3 or more times per week, or smoking more than 20 cigarettes per day)
- Subjects deemed unsuitable for this study by the investigator

Target sample size

5


Research contact person

Name of lead principal investigator

1st name Satsuki
Middle name
Last name Kimura

Organization

General Incorporated Association, Kendai Translational Research Center

Division name

Clinical Research Department

Zip code

3700002

Address

450-1-A Hidaka-machi, Takasaki City, Gunma Prefecture

TEL

0273954316

Email

kimura.ktrc@gmail.com


Public contact

Name of contact person

1st name Satsuki
Middle name
Last name Kimura

Organization

General Incorporated Association, Kendai Translational Research Center

Division name

Clinical Research Department

Zip code

3700002

Address

450-1-A Hidaka-machi, Takasaki City, Gunma Prefecture

TEL

0273954316

Homepage URL


Email

kimura.ktrc@gmail.com


Sponsor or person

Institute

General Incorporated Association, Kendai Translational Research Center

Institute

Department

Personal name



Funding Source

Organization

General Incorporated Association, Kendai Translational Research Center

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Takasaki University of Health and Welfare Research Ethics Review Committee

Address

37-1 Nakaorui-cho, Takasaki-shi, Gunma, Japan

Tel

0273521290

Email

kuwabara@takasaki-u.ac.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

2026 Year 01 Month 18 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

2026 Year 01 Month 08 Day

Date of IRB

2026 Year 01 Month 08 Day

Anticipated trial start date

2026 Year 01 Month 19 Day

Last follow-up date

2026 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 01 Month 16 Day

Last modified on

2026 Year 01 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069068