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Metabolic changes by niacin (Niacin metabolism 4)

Study of metabolite changes by niacin suupplementation on habitual drinkers - Niacin metabolism

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1040240167
Enrollment
60
Registered
2025-01-16
Start date
2025-01-16
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

None None

Interventions

Nicotinamide

Sponsors

Hirao Atsushi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Habitual drinkers 1) Healthy individuals (men and women aged 40 years or older who do not suffer from any medical conditions requiring prescription medications). 2) Habitual drinkers (those who consume alcohol on three or more days per week, with a daily pure alcohol intake of 20g or more for men and 20g or more for women). 3) Individuals who can provide information regarding their usual alcohol consumption, including type, quantity, and frequency. 4) Individuals who have undergone a health checkup within the past year and can provide relevant information. 5) Individuals who have provided written consent based on their free will after receiving sufficient informed consent regarding participation in this study. Regular drinker (drinks at least once a week) 1) Healthy individuals (men and women aged 30 years or older who do not suffer from any medical conditions requiring prescription medications). 2) Habitual drinkers (those who consume alcohol on one or more days per week). 3) Individuals who can provide information regarding their usual alcohol consumption, including type, quantity, and frequency. 4) Individuals who have undergone a health checkup within the past year and can provide relevant information. 5) Individuals who have provided written consent based on their free will after receiving sufficient informed consent regarding participation in this study.

Exclusion criteria

Exclusion criteria: 1) Individuals who are pregnant, breastfeeding, or may be pregnant. 2) Individuals who regularly consume medications or food products, including supplements, containing nicotinamide, nicotinic acid, NMN, or nicotinamide riboside (NR). However, those who have discontinued use at least five days before the study initiation may be eligible for participation, provided that the name of the medication or supplement and the date of discontinuation are recorded. 3) Individuals with a history of hypersensitivity to medications or food products containing nicotinamide, nicotinic acid, NMN, or NR. 4) Individuals who contract any illness during the study period. 5) Individuals deemed unsuitable for participation by the principal investigator or co-investigators for other reasons.

Design outcomes

Primary

MeasureTime frame
Chenge in blood metabolite levels after taking supplement

Secondary

MeasureTime frame
Chenge in urinary metabolite levels after taking supplement

Contacts

Public ContactAtsushi Hirao

Kanazawa University

ahirao@staff.kanazawa-u.ac.jp+81-762646755

Outcome results

None listed

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