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Aggregate Metabolic Phenotypes for (Poly)Phenols: Development of an Oral (Poly)Phenol Challenge Test (OPCT) — OPCT  

Cardiometabolic Health Clinical Trial

Official title:
Identification of Aggregate Metabolic Phenotypes for the Main Dietary (Poly)Phenols and Assessment of the Factors Associated With Their Formation: Development of an Oral (Poly)Phenol Challenge Test (OPCT)

Clinical Trial Summary

The study is a single-dose acute clinical trial aiming at identifying aggregate metabolic phenotypes for the main dietary (poly)phenols and assessing the factors associated with their formation. The treatment consists of a nutritional challenge representative of the consumption of (poly)phenols in Europeans (so-called oral (poly)phenol challenge test, OPCT) and foresees the supplementation of three standardized tablets rich in (poly)phenols, prepared from various commercially available plant extracts constituting sources of specific (poly)phenols. Urinary excretion of (poly)phenol metabolites will be evaluated at 24 hours after tablet consumption or, for two subgroups of volunteers, at different time points for 24 hours upon tablet consumption. Blood pressure and heart rate will also be measured and anthropometric data collected. Information will be collected on genetic polymorphisms related to the metabolism of (poly)phenols, gene expression, standard cardiometabolic health biomarkers, cardiometabolic risk scores and gut microbiota profile, through the collection of urine, blood and stool samples. Volunteers will follow a (poly)phenol-free diet before and after the OPCT. To check compliance with food restrictions, a 24-hour recall will be carried out on each visit. For a sub-group of 50 subjects, 3 months after the first challenge, the OPCT will be repeated with further urinary and fecal collection.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05414084
Study type Interventional
Source University of Parma
Contact
Status Completed
Phase N/A
Start date May 31, 2022
Completion date May 26, 2023
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