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A study on the effects of food containing the probiotic Bifidobacterium LKM512 and arginine on vascular endothelial function and blood pressure

A double-blind, placebo-controlled study to evaluate the effects of a food containing Bifidobacterium animalis subsp. lactis LKM512 and arginine on vascular endothelial function and blood pressure. - A double-blind, placebo-controlled study to evaluate the effects of a food containing Bifidobacterium LKM512 and arginine on vascular endothelial function and blood pressure.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000058095
Enrollment
80
Registered
2025-06-08
Start date
2025-05-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arteriosclerosis (Subclinical stage)

Interventions

Participants receive a 16-week daily intake of 3 g of a food product containing Bifidobacterium LKM512 (approximately 1 billion viable bacterial cells) and 600 mg of arginine. Participants in the plac

Sponsors

Kyodo Milk Industry Co. Ltd., Research Laboratories
Lead Sponsor
The University of Tokyo, Institute of Medical Science
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Japanese men and women aged between 35 and 64 years 2. Body-mass index (BMI) >=25.0 kg/m2 3. Individuals who voluntarily agreed to participate in the study after receiving sufficient explanation and providing written informed consent

Exclusion criteria

Exclusion criteria: 1. Individuals who currently require medication or regular medical visits 2. Individuals undergoing dietary or exercise therapy under medical supervision 3. Individuals with current or past history of serious diseases 4. Individuals who regularly consume over-the-counter medications, quasi-drugs, dietary supplements, or foods with health claims such as Foods for Specified Health Uses (FOSHU) or Foods with Functional Claims (FFC); however, those who are able to discontinue such use after giving consent may be eligible to participate. 5. Individuals with drug or food allergies 6. Individuals who have donated blood components or 200 mL of whole blood within one month prior to the start of the study 7. Individuals who have donated 400 mL of whole blood within four months prior to the start of the study 8. Individuals who have participated in other clinical trials or clinical studies within one month prior to obtaining informed consent, are currently participating, or plan to participate during the study period. 9. Women who are currently pregnant or breastfeeding, or who plan to become pregnant during the study period. 10. Individuals with habitual excessive alcohol consumption (>=60 grams of ethanol per day) 11. Individuals with irregular lifestyles, including those with highly irregular eating habits, shift work, or night shifts 12. Individuals with a smoking habit 13. Individuals judged by the principal medical doctor to be inappropriate for participation in the study

Design outcomes

Primary

MeasureTime frame
Flow-mediated dilation (FMD) value Blood pressure

Secondary

MeasureTime frame
Blood biochemical data Fecal microbiome and metabolome data Blood plasma metabolome BMI Waist circumference

Countries

Japan

Contacts

Public ContactTsuyoshi Takahama

Seishukai Clinic Clinical trial office

t-takahama@seishukai.or.jp080-4410-9269

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026