NCT05621122

Brief Summary

This projects aims to characterize dietary habits and nutrition quality of pro-vegetarian diets as compared to omnivorous diets. It also aims to stablish gut microbial and metabolit profiles of this dietary pattern, in order to elucidate the role of plant-based diets in cancer prevention and treatment.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2023

Shorter than P25 for all trials

Geographic Reach
1 country

6 active sites

Status
unknown

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

September 29, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

November 17, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

January 1, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

November 25, 2022

Status Verified

November 1, 2022

Enrollment Period

5 months

First QC Date

September 29, 2022

Last Update Submit

November 20, 2022

Conditions

Keywords

dietary patternsvegetarianomicsmicrobiomecancermetabolism

Outcome Measures

Primary Outcomes (2)

  • Dietary habits obtention from vegetarians: the dietary intake

    Dietary habits will be taken by an online specific Food Frequency Questionnaire (FFQ) for Spanish population, including novel vegetarian foods to evaluate vegetarian food consumption. The data analysis will be taken at baseline outcome.

    3 months

  • Dietary assessment validation methods: 24-hour-recalls and dietary intake biomarkers

    To validated dietary assessment method, two 24-Hour-Recalls in two non-consecutive days will be used, as well as the analysis of specific vegetarian diet metabolites in urine and stool samples using Ultra performance liquid chromatography - tandem mass spectrometer (UPLC-MS/MS). The data analysis will be taken at baseline. We have estimated that 200 subjects will be sufficient to detect, with a 95% confidence and power of 90%, correlation coefficients greater than rho=0.2.

    6 monts

Study Arms (5)

Omnivours

100 subjects (comparison group)

Other: This is an observational study

Vegans

50 subjects, adults aged over 18 years, voluntarly participating in this observational study

Other: This is an observational study

Lacto-ovo-vegetarians

50 subjects, adults aged over 18 years, voluntarly participating in this observational study

Other: This is an observational study

Pesco-vegetarians

50 subjects, adults aged over 18 years, voluntarly participating in this observational study

Other: This is an observational study

Pro-vegetarians

50 subjects, adults aged over 18 years, voluntarly participating in this observational study

Other: This is an observational study

Interventions

This is an observational study. The control group (omnivours) will be compared with all otgher groups

Lacto-ovo-vegetariansOmnivoursPesco-vegetariansPro-vegetariansVegans

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

University students and staff, mainly. Healthy volunteers from the general population. The control group will be matched by age and sex to the vegetarian diet study groups.

You may not qualify if:

  • pregnancy or lactation
  • antibiotic treatment in the previous 2 weeks

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

Idibell Ico

Barcelona, Spain

NOT YET RECRUITING

Biodonostia

Donostia / San Sebastian, Spain

NOT YET RECRUITING

University of Granada

Granada, Spain

RECRUITING

Csic-Ictan

Madrid, Spain

NOT YET RECRUITING

CSIC-IG

Seville, Spain

NOT YET RECRUITING

IISPV Pere Virgili

Tarragona, Spain

NOT YET RECRUITING

MeSH Terms

Conditions

Feeding BehaviorNeoplasmsMetabolic Diseases

Condition Hierarchy (Ancestors)

Behavior, AnimalBehaviorNutritional and Metabolic Diseases

Study Officials

  • Esther Molina Montes

    Universidad de Granada

    STUDY DIRECTOR
  • Noelia M Rodriguez

    nmrodriguez@ig.csic.es

    STUDY CHAIR

Central Study Contacts

Esther Molina Montes

CONTACT

Noelia M Rodriguez Martin

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor (Assistant)

Study Record Dates

First Submitted

September 29, 2022

First Posted

November 17, 2022

Study Start

January 1, 2023

Primary Completion

June 1, 2023

Study Completion

December 1, 2023

Last Updated

November 25, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

Locations