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The investigation of anti-fatigue effect associated with ingestion of Ripe Kumquats "Tama-Tama". :A randomization open-label, non-eating simultaneous control comparison group study.

The investigation of anti-fatigue effect associated with ingestion of Ripe Kumquats "Tama-Tama". :A randomization open-label, non-eating simultaneous control comparison group study. - The clinical trial for anti-fatigue effect associated with ingestion of Ripe Kumquats "Tama-Tama".

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000026179
Enrollment
56
Registered
2017-02-17
Start date
2017-02-15
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

The subjects take Kumquat &quot
five pieces per day for four weeks The subjects don&#39
t take Kumquat &quot

Sponsors

University of Miyazaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Subjects who are judged as healthy by self-reported health questionnaire. 2. Subjects who are 35-55 years old at informed consent. 3. Subjects who agree to participate in this study with a written informed consent after receiving sufficient explanation relating to this study.

Exclusion criteria

Exclusion criteria: 1. Subjects who don't fill any item of self-reported health questionnaire. 2. Subjects who have respiratory, gastrointestinal, hepatic/gallbladder/pancreatic, hematologic, renal, endocrine, cardiovascular and/or mental disease, or who have history of those diseases on self-reported health questionnaire. 3. Subjects who have a serious injury or surgical history within 12 weeks prior to this study. 4. Pre- or post-menopausal women having obvious changes in physical condition. 5. Subjects who are at risk of having allergic reaction to citrus foods including kumquat. 6. Subjects who have history of allergic reaction to foods or drugs which needs its treatment or who have possibility of the reaction. 7. Subjects who are heavy smoker (more than 21 cigarettes per day), alcohol dependency or drug dependency or who have possibility of these dependency. 8. Subjects who regularly take drugs, foods for specified health uses, foods with function claims and/or supplements, etc. which would affect this study. 9. Pregnant or lactating women or women expect to be pregnant during this study. 10. Subjects who have cognitive disorder or who have possibility of the disorder. 11. Subjects who participate and take the study drug in other clinical trials before this study. 12. Subjects who are judged as unsuitable for this study by the principal investigator or subinvestigators.

Design outcomes

Primary

MeasureTime frame
Total score of Chalder fatigue scale at first day, four weeks and eight weeks after ingestion of ripe kumquats.

Secondary

MeasureTime frame
1. VAS score 2. QOL scales (SF-36) 3. Symptom scores of upper respiratory tract infections(URTI) 4. Duration of illness, the number of days from the onset to the complete disappearance of URTI symptoms 5. Percentage of visiting physicians due to symptoms of URTI 6. Incidence rate of influenza 7. Restriction of daily activities 8. Adverse events (VAS score and QOL scales are assessed on the first day, four weeks and eight weeks after ingestion of ripe kumquats "Tama-Tama".)

Countries

Japan

Contacts

Public ContactYasuji Arimura

University of Miyazaki Clinical research support center, University of Miyazaki hospital

yasuji_arimura@med.miyazaki-u.ac.jp0985-85-9577

Outcome results

None listed

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