Effects of mixed extracts of Drynaria fortunei rhizomes and Eleutherococus senticosus leaves on cognitive functions and stress in healthy adults

Effects of mixed extracts of Drynaria fortunei rhizomes and Eleutherococus senticosus leaves on cognitive functions and stress in healthy adults - Effects of mixed extracts of Drynaria fortunei rhizomes and Eleutherococus senticosus leaves on cognitive functions and stress in healthy adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000036274

Enrollment

Registered

2019-04-01

Start date

2019-04-13

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

Healthy adults

Interventions

Tretament test drug: Intake of capsules containing two extracts of Drynaria fortunei rhizomes (20 mg/capsule) and Eleutherococus senticosus leavesas (200 mg/capsule), three capsules per day, for 12 we

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy human psychologically and physically between age 40 to 80 years old, who volunteers to attend this clinical study.

Exclusion criteria

Exclusion criteria: Subjects under 20 years old, pregnant or lactating. Subjects having mental illnesses. Subjects judged being inappropriate by other reasons.

Design outcomes

Primary

Measure	Time frame
RBANS-J for cognition, Public Health Research Foundation Stress Check List Short Form for anti-stress, before and 12 weeks after the intake.	—

Secondary

Measure	Time frame
JART, MMSE-J for cognition, before and 12 weeks after the intake.	—

Countries

Japan

Contacts

Public ContactChihiro Tohda

University of Toyama Division of Neuromedical Science, Institute of Natural Medicine

chihiro@inm.u-toyama.ac.jp076-434-7646

Outcome results

None listed

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