An intervention study of green-tea drinking effects on biomarkers of lifestyle-related diseases

An intervention study of green-tea drinking effects on biomarkers of lifestyle-related diseases - Effects of green tea on lifestyle-related disease biomarkers

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000019564

Enrollment

150

Registered

2015-10-30

Start date

2015-11-01

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

allergic reaction

Interventions

Equal to or more than 6 cups of green tea per day (approximately 10 g green tea), for 6 months

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: volunteers aged 20-75 years old

Exclusion criteria

Exclusion criteria: 1. individuals with a history of heart failure or cardiac infarction 2. individuals with disease(s) of upper-gastrointestinal tract such as gastric ulcer 3. pregnant women or women with intending to become pregnant, and lactating women 4. individuals judged by the doctor to be unsuitable

Design outcomes

Primary

Measure	Time frame
TDI-specific IgG antibody(6 months after intervention)	—

Secondary

Measure	Time frame
total (non-specific) IgG, IgE specific IgG against chemical agents (Bisphenol A diglycidyl ether, phthalic anhydride, p-phenylenediamine, formaldehyde, glutaraldehyde, acrylamide, ethylenediamine, Hexamethylene diisocyanate, methyl methacrylate, trimellitic anhydride, glycidyl methacrylate)	—

Countries

Japan

Contacts

Public ContactChihaya Koriyama

Kagoshima University Graduate School of Medical and Dental Sciences, Dept. of Epidemiology and Preventive Medicine

fiy@m.kufm.kagoshima-u.ac.jp099-275-5298

Outcome results

None listed

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