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A randomized double-blind, placebo-controlled crossover study to investigate the suppressive effect of blueberry leaf extract on the postprandial triglyceride level elevation.

A randomized double-blind, placebo-controlled crossover study to investigate the suppressive effect of blueberry leaf extract on the postprandial triglyceride level elevation. - The trial for investigation of suppressive effect of blueberry leaf extract on the postprandial triglyceride level elevation.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000030838
Enrollment
20
Registered
2018-01-16
Start date
2018-01-22
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

Adults

Interventions

The subjects take 100 ml test food containing blueberry extract before meal load. The subjects take 100 ml placebo food not containing blueberry extract before meal load.

Sponsors

University of Miyazaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Subjects who have above 100mg/dL and less than 199mg/dl of fasting triglyceride level. 2. Subjects who have no abnormality in clinical problems by screening tests. 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 have serious respiratory, gastrointestinal, hepatic/gallbladder/pancreatic, hematologic, renal, endocrine, cardiovascular and/or mental disease, or who have history of those diseases. 2. Subjects who have a serious injury or surgical history within 12 weeks prior to this study. 3. Pre- or post-menopausal women having obvious changes in physical condition. 4. Subjects who have history of allergic reaction to foods or drugs which needs its treatment or who have possibility of the reaction. 5. Subjects who are heavy alcohol addicts (more than 80 g per day alcohol), or alcohol or drug dependency or who have possibility of the dependency. 6. Subjects who regularly take drugs, which would affect this study. 7. Subjects who regularly take foods for specified health uses, foods with function claims and/or supplements, etc. which would affect this study. 8. Subjects who donate either 200 ml whole blood, 400 ml whole blood or blood components within 4 weeks prior to 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 within 4 weeks prior to this study. 12. Subjects who are judged as unsuitable for this study by the principal investigator or subinvestigators.

Design outcomes

Primary

MeasureTime frame
Incremental area under the curve (IAUC) of postprandial triglyceride level

Secondary

MeasureTime frame
1.The actual values and the changes of postprandial triglycerides at each evaluation point (1,2,3,4 and 5 hours)after meal load. 2.The increment of postprandial triglyceride level. 3.The actual values and the changes of glycolipid metabolism related index at each evaluation point after meal load. 4.Adverse events.

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