A double-blind, randomized, placebo-controlled clinical trial to investigate the effect of the foods containing plant extract (Ex.no.H27-1211)

A double-blind, randomized, placebo-controlled clinical trial to investigate the effect of the foods containing plant extract (Ex.no.H27-1211) - A clinical trial to investigate the effect of the foods containing plant extract

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000020796

Enrollment

Registered

2016-01-29

Start date

2016-01-30

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 Adult

Interventions

Food containing plant extract for 8 weeks Food without plant extract for 8 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Subjects giving written informed consent.

Exclusion criteria

Exclusion criteria: 1) Subjects consuming foods enriched with polyphenols 2) Subjects with cold before the study 3) Subjects with a history of allergy or might be liable to allergy related to the study 4) Subjects who have serious historical disease, marked impairment, or treatment in the liver, kidney, heart, lung, gastrointestinal tract, blood, endocrine system, or metabolism system 5) Subjects who are ineligible due to physician's judgment 6) Subjects who participate in other clinical trials 7) Subjects who plan to become pregnant, who are during pregnancy, or who are nursing 8) Subjects who are ineligible due to life-style questionnaire

Design outcomes

Primary

Measure	Time frame
Prevalence of cold and upper airway inflammation	—

Secondary

Measure	Time frame
Degree of cold and upper airway inflammation	—

Countries

Japan

Contacts

Public ContactSoichi Yoneda

QOL RD Co.,Ltd. CRO Department Food Division.

s-yoneda@qol-rd.co.jp03-6386-8809

Outcome results

None listed

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