Effects of green tea consumption on cognitive dysfunction and atherosclerosis: A randomized-controlled study

Effects of green tea consumption on cognitive dysfunction and atherosclerosis: A randomized-controlled study - Effects of green tea consumption on cognitive dysfunction and atherosclerosis

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000011668

Enrollment

Registered

2013-09-09

Start date

2013-09-10

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

Dementia

Interventions

green tea powder placebo powder

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1.Obtained written informed consent from both the participant and care-giver before participation 2.Possible to consume green tea and placebo powder 3.Cognitive dysfunction based on MMSE; score < 28 4.Not taking any supplement possessing anti-oxidizing effects

Exclusion criteria

Exclusion criteria: 1. Allergy to green tea 2. Severe cardiac, respiratory, renal, or hepatic dysfunction 3. Severe anemia 4. Diagnosed as inadequate to participate to the study by a doctor

Design outcomes

Primary

Measure	Time frame
Changes in Mini-Mental State Examination (MMSE) scores	—

Secondary

Measure	Time frame
Changes in sub-scores of MMSE Changes in BMI, blood pressure, serum lipids, plasma glucose, HbA1c	—

Countries

Japan

Contacts

Public ContactHiroshi Yamada

University of Shizuoka School of Pharmaceutical Sciences

hyamada@u-shizuoka-ken.ac.jp+81-54-264-5762

Outcome results

None listed

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