NCT04234100

Brief Summary

Flavonoids are polyphenolic compound mainly found in fruits and vegetables with numerous beneficial health effects as protection against cardiovascular diseases by an antihypertensive effect. The intestinal microbiota plays a key role in the metabolization of these compounds, so that differences in the composition and activity of the microbiota between individuals can generate different metabotypes. Flavonoids are found mainly in their conjugated form linked to the monosaccharide rhamnose and need to be metabolized by the intestinal bacteria, releasing the rhamnose, to be absorbed and, thus, bioactive. The bacterial enzyme responsible of rhamnose hydrolysis is α-L-rhamnosidase, whose activity can vary considerably depending on the composition of the microbiota. In fact, a great interindividual variability has been observed in the ability to absorb flavonoids, which allows to classify individuals according to the corresponding metabotype. In a previous project, the investigators confirmed the interindividual differences in the bioavailability of hesperidin and narirutin, two flavonoids naturally present in orange juice. However, the role of the intestinal microbiota in the metabolism of hesperidin and narirutin needs to be elucidated. On this basis, the following hypothesis is presented: individuals with arterial hypertension can be classified into 3 different metabotypes that are the result of the ability to absorb hesperidin and narirutin, determined by the urinary excretion of their respective metabolites, and these metabotypes are associated with different microbiota enterotypes and with different fecal α-L-rhamnosidase activity.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
67

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 13, 2020

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 21, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

February 24, 2020

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 22, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 22, 2020

Completed
Last Updated

February 28, 2022

Status Verified

February 1, 2022

Enrollment Period

7 months

First QC Date

January 13, 2020

Last Update Submit

February 25, 2022

Conditions

Keywords

HypertensionFlavonoidsOrange juiceMetabotypes

Outcome Measures

Primary Outcomes (1)

  • Percentage of absorption of hesperidin and narirutin

    Quantification of the metabolites derived from hesperidin and narirutin in basal and 24-hour urine samples, using Liquid Chromatography coupled to Mass Spectrometry (LC-QqQ). From the profile of metabolites detected in urine, the percentage of absorption of hesperidin and narirutin with respect to the amount ingested will be quantified to determine the metabotypes, based on the urinary excretion corresponding to each volunteer:

    After 24 hours of juice consumption

Secondary Outcomes (4)

  • Fecal α-L-rhamnosidase activity

    Basal

  • Gut microbiota composition

    Basal

  • Enterotype classification

    Basal

  • Creatinine levels

    Basal and after 24 hours of juice consumption

Study Arms (1)

Orange juice rich in hesperidin and narirutin

EXPERIMENTAL

The consumption of the orange juice will be made in a single dose of 500 ml. The juice is presented in a concentrated and frozen format, packed in opaque cans of 500 mL, for which it must be thawed and diluted with mineral water up to 1.5 L before its ingestion.

Other: Orange juice rich in hesperidin and narirutin

Interventions

The product is a concentrated orange juice provided by the CITRUS Department of Florida (USA: www.FloridaCitrus.org).

Orange juice rich in hesperidin and narirutin

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women over 18 years of age
  • Systolic blood pressure ≤159 mm Hg
  • Sign the informed consent

You may not qualify if:

  • Body mass index (BMI) ≥ 35 kg / m2
  • Glucose \> 126 mg / dL
  • Systolic blood pressure ≥ 160 mm Hg and diastolic blood pressure \> 100 mm Hg or taking antihypertensive drugs
  • LDL cholesterol \> 189 mg / dL
  • Triglycerides \> 350 mg / dL
  • Anemia (hemoglobin ≤ 13 g / dL in men and ≤ 12 g / dL in women)
  • Tobacco addiction
  • Consumption of medicines, antioxidants or vitamin supplements 30 days before the study
  • Use of antibiotics during the last 30 days prior to the study
  • Consumption of prebiotics and / or probiotics during the 30 days prior to the study
  • Chronic alcoholism
  • Monitoring a vegetarian diet
  • Pregnant or with intent to get pregnant
  • Being in breastfeeding period
  • Participation in a clinical trial or nutritional intervention study, in the last 30 days.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centro Tecnológico de Nutrición y Salud (Eurecat-Reus)

Reus, Tarragona, Spain

Location

Related Links

MeSH Terms

Conditions

Hypertension

Interventions

Hesperidinnarirutin

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

FlavanonesFlavonoidsChromonesBenzopyransPyransHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingGlycosidesCarbohydrates

Study Officials

  • Rosa Solà, Dr

    UTNS(Eurecat_Reus)/HUSJR. Reus, Tarragona, Spain

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 13, 2020

First Posted

January 21, 2020

Study Start

February 24, 2020

Primary Completion

September 22, 2020

Study Completion

September 22, 2020

Last Updated

February 28, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations