Nutritional Intervention With Table Olives in Healthy Volunteers

NCT ID: NCT03886597

Last Updated: 2019-08-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

58 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-25

Study Completion Date

2019-06-15

Brief Summary

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Olives and olive oil are typical components of the Mediterranean diet being part of its cultural and gastronomic heritage. Since ancient times, olives have been used either for both, oil extraction or whole fruit consumption as table olives. Olive oil stands out from both the nutritional and the health point of view. However, the effect of table olives consumption remains almost unknown. The beneficial properties of olive oil have been initially ascribed to the high concentration of oleic acid. Nowadays, these positive effects have been attributed also to minor compounds such as polyphenols or pentacyclic triterpenes. Table olives contain a higher amount of both polyphenols and pentacyclic triterpenes than their oil, with the same healthy fatty acid profile. Therefore, the present intervention aims at investigating the pharmacokinetic of polyphenols and pentacyclic triterpenes after a single olive intake as well as the assessment of the effect of the consumption of olives during 30 days on the overall health status playing particular attention to the anti-inflammatory, antioxidant and cardiovascular biomarkers.

Detailed Description

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Conditions

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Healthy Biological Availability Nutritional Intervention Functional Food Nutrition Physiology

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

This study involve two stages, the first one corresponding to the pharmacokinetic study of the single administration of table olives in healthy male volunteers and the second one corresponding to the study of a nutritional intervention with 30 table olives during 30 days.
Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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60 Arbequina Table Olives

Pharmacokinetics Study

Group Type EXPERIMENTAL

Table Olives

Intervention Type OTHER

At early morning (08:00 h e.g.) and after 10 hours of fasting conditions, the olives of the Arbequina variety will be administered to each subject. The 60 olives will be weighted before the ingestion and the remaining stones will be subsequently weighted to keep a record of the amount of olive pulp that has been consumed. The subjects will have a period of 5 minutes to ingest 60 olives with 240 mL of water. Blood samples will be collected from 1 hour prior to administration until 24 hours after dosing. Urine samples will also be collected and blood pressure will be measured.

120 Arbequina Table Olives

Pharmacokinetics Study

Group Type EXPERIMENTAL

Table Olives

Intervention Type OTHER

At early morning (08:00 h e.g.) and after 10 hours of fasting conditions, the olives of the Arbequina variety will be administered to each subject. The 120 olives will be weighted before the ingestion and the remaining stones will be subsequently weighted to keep a record of the amount of olive pulp that has been consumed. The subjects will have a period of 10 minutes to ingest 120 olives with 240 mL of water. Blood samples will be collected from 1 hour prior to administration until 24 hours after dosing. Urine samples will also be collected and blood pressure will be measured.

60 Table Olives

Table Olives Nutritional Intervention

Group Type EXPERIMENTAL

Table Olives

Intervention Type OTHER

All the subjects will perform two experimental sessions of 30 days with 15 days of washout periods within experimental periods. In one experimental session subjects will ingest table olives and in the other session they will act as their own controls following their normal dietary habits. During all the experiment participants will avoid the consumption of products rich in phenolic and triterpenic compounds. Subjects will include the dose of 60 table olives within their normal dietary habits. Consequently, the olives will be consumed two times daily within each main meal; 30 olives before lunch and 30 olives before dinner. Blood samples will be collected at baseline and 15 and 30 days of each experimental session. Tolerability variables and blood pressure will also be measured.

Control

Control of Table Olives Nutritional Intervention

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Table Olives

At early morning (08:00 h e.g.) and after 10 hours of fasting conditions, the olives of the Arbequina variety will be administered to each subject. The 60 olives will be weighted before the ingestion and the remaining stones will be subsequently weighted to keep a record of the amount of olive pulp that has been consumed. The subjects will have a period of 5 minutes to ingest 60 olives with 240 mL of water. Blood samples will be collected from 1 hour prior to administration until 24 hours after dosing. Urine samples will also be collected and blood pressure will be measured.

Intervention Type OTHER

Table Olives

At early morning (08:00 h e.g.) and after 10 hours of fasting conditions, the olives of the Arbequina variety will be administered to each subject. The 120 olives will be weighted before the ingestion and the remaining stones will be subsequently weighted to keep a record of the amount of olive pulp that has been consumed. The subjects will have a period of 10 minutes to ingest 120 olives with 240 mL of water. Blood samples will be collected from 1 hour prior to administration until 24 hours after dosing. Urine samples will also be collected and blood pressure will be measured.

Intervention Type OTHER

Table Olives

All the subjects will perform two experimental sessions of 30 days with 15 days of washout periods within experimental periods. In one experimental session subjects will ingest table olives and in the other session they will act as their own controls following their normal dietary habits. During all the experiment participants will avoid the consumption of products rich in phenolic and triterpenic compounds. Subjects will include the dose of 60 table olives within their normal dietary habits. Consequently, the olives will be consumed two times daily within each main meal; 30 olives before lunch and 30 olives before dinner. Blood samples will be collected at baseline and 15 and 30 days of each experimental session. Tolerability variables and blood pressure will also be measured.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Body Mass Index between 19 and 30 kg/m2.
* Healthy on the basis of physical examination and routine biochemical and hematological laboratory determinations.
* Free acceptance to participate in the study by obtains signed informed consent.

Exclusion Criteria

* Smoking.
* Alcohol or drug abuse.
* Heavy consumer of stimulating beverages (\>5 coffees, teas, chocolate or cola drinks per day) and grapefruit juice.
* Background of allergy, idiosyncrasy or hypersensitivity to drugs.
* Intake of any medication within 2 weeks prior taking the study intervention (except for use of paracetamol in short-term symptomatic treatments), including over-the-counter products (including natural food supplements, vitamins and medicinal plants products), or any enzymatic inductor or inhibitor within 3 months before the drug administration.
* Positive serology for hepatitis B, C or HIV.
* Background or clinical evidence of cardiovascular, respiratory, renal, hepatic, endocrine, gastrointestinal, hematological or neurological disease or other chronic diseases.
* Having undergone major surgery during the previous 6 months.
* Pregnancy or lactation status (if applied).
* Participation in another clinical trial during the 3 months preceding the drug administration.
* Donation of blood during the 4 weeks preceding the drug administration.
* Acute illness four weeks before drug administration.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Ministerio de Economía y Competitividad (Spain) AGL 2013-41188R

UNKNOWN

Sponsor Role collaborator

University of Barcelona

OTHER

Sponsor Role collaborator

Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Joana M Planas, PhD Prof.

Role: STUDY_DIRECTOR

Departament de Bioquímica i Fisiologia. Facultat de Farmàcia i Ciències de l´Alimentació. Universitat de Barcelona

Locations

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Institut de Recerca Hospital de la Santa Creu i Sant Pau - CIM Sant Pau

Barcelona, , Spain

Site Status

Countries

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Spain

References

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Cicerale S, Conlan XA, Sinclair AJ, Keast RS. Chemistry and health of olive oil phenolics. Crit Rev Food Sci Nutr. 2009 Mar;49(3):218-36. doi: 10.1080/10408390701856223.

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Juan ME, Planas JM, Ruiz-Gutierrez V, Daniel H, Wenzel U. Antiproliferative and apoptosis-inducing effects of maslinic and oleanolic acids, two pentacyclic triterpenes from olives, on HT-29 colon cancer cells. Br J Nutr. 2008 Jul;100(1):36-43. doi: 10.1017/S0007114508882979. Epub 2008 Feb 26.

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Reference Type BACKGROUND
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Martin-Pelaez S, Covas MI, Fito M, Kusar A, Pravst I. Health effects of olive oil polyphenols: recent advances and possibilities for the use of health claims. Mol Nutr Food Res. 2013 May;57(5):760-71. doi: 10.1002/mnfr.201200421. Epub 2013 Mar 1.

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Melliou E, Zweigenbaum JA, Mitchell AE. Ultrahigh-pressure liquid chromatography triple-quadrupole tandem mass spectrometry quantitation of polyphenols and secoiridoids in california-style black ripe olives and dry salt-cured olives. J Agric Food Chem. 2015 Mar 11;63(9):2400-5. doi: 10.1021/jf506367e. Epub 2015 Feb 26.

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Weinbrenner T, Fito M, de la Torre R, Saez GT, Rijken P, Tormos C, Coolen S, Albaladejo MF, Abanades S, Schroder H, Marrugat J, Covas MI. Olive oils high in phenolic compounds modulate oxidative/antioxidative status in men. J Nutr. 2004 Sep;134(9):2314-21. doi: 10.1093/jn/134.9.2314.

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Other Identifiers

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IIBSP-OLI-2016-23

Identifier Type: -

Identifier Source: org_study_id

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