Effects of green tea extract high in catechins on obese subjects

Effects of green tea extract high in catechins on obese subjects - Effects of tea catechins on obesity.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000005223

Enrollment

270

Registered

2011-03-14

Start date

2002-04-01

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

obesity

Interventions

Catechin beverage (containing 582.8mg of catechins) 1 can per day for 12 weeks. Control beverage (containing 96.3mg of catechins) 1 can per day for 12 weeks.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy Japanese women and men 25 to 55 years age with body mass index of 24 to 30 kg/m^2 and/or waist circumference of 80 to 94cm.

Exclusion criteria

Exclusion criteria: Serious liver disease Serious renal disease

Design outcomes

Primary

Measure	Time frame
Body weight, body mass index, body fat ratio, body fat mass, waist circumference, hip circumference, abdominal visceral fat area, and abdominal subcutaneous fat area	—

Secondary

Measure	Time frame
Blood pressure and serum low-density lipoprotein cholesterol.	—

Countries

Japan

Contacts

Public ContactKazuya Kozuma

Kao Corporation Health Care Food Research Labs.

kouzuma.kazuya@kao.co.jp03-5630-7268

Outcome results

None listed

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