A multicenter randomized, double-blind, placebo-controlled trial to evaluate the body fat reducing efficacy and safety of a beverage containing tea catechins on obese subjects.

A multicenter randomized, double-blind, placebo-controlled trial to evaluate the body fat reducing efficacy and safety of a beverage containing tea catechins on obese subjects. - Body fat reducing effects of tea catechins on obese subjects.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000005224

Enrollment

200

Registered

2011-03-14

Start date

2005-01-01

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 540mg of catechins) 1bottle per day for 12weeks. Placebo beverage 1bottle per day for 12weeks.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 20-65 aged men and postmenopausal women. Health men and women with BMI 25-35kg/m^2. Written informed consent obtained.

Exclusion criteria

Exclusion criteria: Diabetes mellitus History of cardiovascular disease Abnormal liver function Abnormal renal function Pregnancy Constant use of oral medication or supplements affecting body fat and/or body weight. Inadequate with physician's decision

Design outcomes

Primary

Measure	Time frame
Visceral fat accumulation	—

Secondary

Measure	Time frame
abdominal subcutaneous fat area, abdominal total fat area, body weight, body mass index, waist circumference, hip circumference, body fat ratio, body fat mass, and fat-free mass.	—

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