Study on improvement of coldness by ingestion of mixed fermented tea leaf powder made from unripe orange fruits and green tea leaves (2)

Study on improvement of coldness by ingestion of mixed fermented tea leaf powder made from unripe orange fruits and green tea leaves (2) - Study on improvement of coldness by ingestion of mixed fermented tea leaf powder(2)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034813

Enrollment

Registered

2018-11-22

Start date

2018-11-17

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

coldness

Interventions

The subjects ingested the placebo meal,and ingested the active meal after 7days. The subjects ingested the active meal,and ingested the placebo meal after 7days.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Healthy male and female between 20 and 70 years old 2) Individuals who has subjective symptoms of coldness 3) Individuals who can refrain from over drinking and over eating during the test period 4) Individuals who understand the purpose and contents of the experiment

Exclusion criteria

Exclusion criteria: 1)Subjects who are contracting or treating severe kidney and/or liver diseases 2)Individuals who have a chronic diseases and regularly use drugs 3)Those who can not stop taking a large amount of green tea or black tea during the test period 4)Pregnant women, or women with intending to become pregnant, and lactating woman 5)Individuals participating or intending to participate in a drug administration test 6)Individuals whose skin surface temperature increase more than 10 degrees for 30 minutes after cooliny load in the intake of the placebo meal. 7)Individuals judged by the doctor to be unsuitable

Design outcomes

Primary

Measure	Time frame
coldness	—

Countries

Japan

Contacts

Public ContactHideki Ito

Univercity of Nagasaki Regional Partnership Center

katanaka@sun.ac.jp095-813-5500

Outcome results

None listed

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