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The effects of olive-derived hydroxytyrosol intake on LDL-cholesterol oxidative suppression - A systematic review.

The effects of olive-derived hydroxytyrosol intake on LDL-cholesterol oxidative suppression - A systematic review. - A systematic review of olive-derived hydroxytyrosol.

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000040080
Enrollment
10
Registered
2020-10-01
Start date
2020-04-07
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

Adult volunteers who are healthy or have no more than one mild health disorder (pertaining to blood glucose level, blood pressure or plasma lipid) which is within boundary range and not exceeding boundary range.

Interventions

None listed

Sponsors

Maruzen Pharmaceuticals Co., LTD.
Lead Sponsor
Professor Hiroharu Kamioka, Tokyo University of Agriculture
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Participants: Healthy*1 or mild illness*2 adult volunteers Intervention: One-time or continuous intake of food containing olive-derived hydroxytyrosol*3 Comparison: Intake of placebo food Outcome: Amount of serum oxidized LDL-cholesterol Study design: Randomized comparison test (randomized, double-blind, placebo-controlled parallel group trial or randomized, double-blinded cross-over trial) The literature to be included will be made up of original papers, information on clinical trial registered databases, abstracts, and grey literature. Although the language of target literature for this research will not be limited, the keywords used in the literature search will be in English or Japanese only. Hand-search will also be conducted on some scientific journals. *1: Studies with subjects aged 18 or 19 may be subject to inclusion in the study if the number of such subjects is less than half of the total number of adults included in the study, and if approval of the Ethics Review Committee is gained. *2: Subjects whose BMI is less than 30kg/m2 and have only one of the following- Mild hyperlipidemia (LDL-cholesterol: 140~159 mg/dL and/or TGs: 150~199 mg/dL), Stage 1 hypertension (diastolic blood pressure: 140~159 mmHg and/or systolic blood pressure: 90~99 mmHg), or Mild hyperglycemia (fasting blood glucose level: 115~125mg/dL and/or casual blood glucose level: 140~199mg/dL). *3: The foods which have special dosage forms or go through special digestion/ absorption pathway are excluded.

Exclusion criteria

Exclusion criteria: Literature which does not meet key inclusion criteria will be excluded. Subjects who are suffering from illness, overweight (BMI is 30kg/m2 or more), planning or currently pregnant or breastfeeding, and children (persons under 18 years), will be excluded from this study. If subjects have conditions which exceed limits: Mild hyperlipidemia, Stage 1 hypertension, or Mild hyperglycemia, and/or have more than one of these conditions, the subject is deemed as having an illness and excluded.

Design outcomes

Primary

MeasureTime frame
Primary outcome is the amount of serum oxidized LDL-cholesterol.

Countries

Japan

Contacts

Public ContactShingo Ikeuchi

Maruzen Pharmaceuticals Co.,Ltd. Research & Development div.

s-ikeuchi@maruzenpcy.co.jp0847-52-6262

Outcome results

None listed

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