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Study on Biological Clock Age

Establishing Reference Values for Blood Biomarkers to Assess Chronological Aging of the Human Circadian Clock and Investigation of Disease-Dependent Variations - Establishing Reference Values for Blood Biomarkers to Assess Chronological Aging of the Human Circadian Clock and Investigation of Disease-Dependent Variations

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000056937
Enrollment
30
Registered
2025-02-05
Start date
2025-02-05
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

healthy adults, diabetes

Interventions

None listed

Sponsors

National Center of Neurology and Psychiatry
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Males aged between 20 and 79 years Diabetic patients aged between 20 and 79 years

Exclusion criteria

Exclusion criteria: 1) Individuals with difficulty in blood collection due to alcohol allergy, vasovagal reflex, or other related conditions. 2) Individuals with sleep issues that deviate from the normal range, as determined by sleep questionnaires, sleep diaries, or actigraphy records. 3) Individuals with pre-existing conditions (such as cardiovascular, hepatic, endocrine, neurological, or psychiatric disorders) that may affect study results, those currently taking relevant medications, or those with a history of such conditions. 4) Individuals diagnosed with alcohol dependence or exhibiting excessive alcohol consumption habits. 5) Individuals who have engaged in shift work or traveled across time zones within six months prior to testing. 6) Individuals who have donated 200 mL of whole blood within four weeks or 400 mL of whole blood within 12 weeks prior to participation. 7) Any other individuals deemed inappropriate for participation by the principal investigator.

Design outcomes

Primary

MeasureTime frame
A set of molecules whose rhythms become abnormal with aging

Countries

Japan

Contacts

Public ContactShingo Kitamura

National Center of Neurology and Psychiatry Department of Sleep-Wake Disorders

s-kita@ncnp.go.jp042-346-2014

Outcome results

None listed

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