Skip to content

The clinical study to elucidate the effects of Oligonol and the prescription containing Oligonol on the blood flow and its relative body functions.

The clinical study to elucidate the effects of Oligonol and the prescription containing Oligonol on the blood flow and its relative body functions. - Clinical trial for improvement of blood flow and its relative body functions.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000031292
Enrollment
45
Registered
2019-05-01
Start date
2018-01-04
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 subjects

Interventions

Placebo Subjects take two capsules containing dextrin as the placebo every day for 4 weeks. Oligonol Subjects take two capsules containing Oligonol every day for 4 weeks. Prescription product S

Sponsors

Faculty of Health Care, Teikyo Heisei University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) person who worries about cold limbs, swelling of lower limb after standing works, tension in shoulder during desk work, and hearing. 2) person who can come to the test place on the day of evaluations. 3) person who diagnosed as health by doctor.

Exclusion criteria

Exclusion criteria: 1) person who ingests drug or supplement to improve the blood flow. 2) person who has chronic diseases and ingests the drugs. 3) heavy smoker (over 21/day) 4) heavy drunker (over 20 g of ethanol/day) 5) person who has the potential of allergy against drugs and foods especially, lychee and green tea. 6) person who are pregnant or expected to be pregnant, or lactating during the study. 7) person who cannot stop excess ingesting of the food containing large amount polyphenol such as green tea or brown tea. 8) person who is judged as ineligible by doctor.

Design outcomes

Primary

MeasureTime frame
Blood flow

Secondary

MeasureTime frame
Cold finger, tension in shoulders, swelling of lower limbs

Countries

Japan

Contacts

Public ContactTatsuya Hisajima

Teikyo Heisei University Faculty of Health Care

hisajima@thu.ac.jp03-5843-4860

Outcome results

None listed

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