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CompletedNCT03419520Updated Aug 13, 2019

GENYAL Study to Childhood Obesity Prevention

An interventional study of Nutritional counseling in Childhood Onset Obesity, sponsored by IMDEA Food. Completed at 1 site in Spain. Open to participants aged 6 Years to 7 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-08-13.

Sponsored by IMDEA Food · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
221
Allocation
Randomized
Ages
6 Years to 7 Years
Sex
All
01

Study summary

Obesity is a multifactorial, complex, chronic disease of special concern. It is originated as an interaction between genetic predisposition and environmental factors. Thus, knowledge of gene-diet interactions is especially important. However, most studies analyzing the efficacy of diet on body weight have not considered the genetic variability among the population.

Childhood and adolescence are critical periods in the development of obesity. This is because, on one hand, during infancy dietary patterns are being implemented. Moreover, it has been described that around the age of 6 it occurs the adiposity rebound, which consists in the increase in body mass index (BMI) that occurs after reaching a lowest point in infancy. It is believed that an early adiposity rebound is associated with a higher risk of developing obesity in the following years. The prevalence of overweight and obese children is increasing every year. Specifically, according to the World Health Organization (WHO) the number of overweight or obese children aged 0 to 5 years, increased from 32 million globally in 1990 to 41 million in 2016. Regarding Spanish children, they are amongst the highest levels of overweight and obesity in Europe. Precisely, in 2015 the Spanish Agency for Consumer Affairs, Food Safety and Nutrition reported 23.2 % overweight and 18.1 % obese Spanish children, according to the ALADINO study.

Considering the previous elaboration, we hypothesized that an early identification of SNPs associated with obesity will improve the strategies applied for its prevention. Moreover, an adequate nutritional counseling and a healthy lifestyle implementation during childhood will contribute to a higher quality of life in the adulthood.

Thus, schools from the Madrid Community agreeing to participate in the study will be randomly assigned to either control or intervention groups. Then, an initial evaluation where 26 SNPs associated with obesity and its related comorbidities will be carried out in all children involved in the study, in addition to anthropometric, blood pressure measurements, and physical activity and dietary patterns evaluation. Then, each group will be divided in two according to the genetic risk (high vs low) for presenting obesity and its related comorbidities. The initial evaluation was performed on all children at 1st and 2nd grades and it is going to be followed by 3 monitoring actions in the following years where the progression of anthropometric measurements and dietary habits are going to be studied. Besides, the intervention schools are going to receive healthy actions along the study aimed to reduce the risk of developing obesity.

02

Conditions studied

  • Childhood Onset Obesity

Keywords

  • Schoolchildren
  • Overweight
  • Obesity
  • Polymorphisms
  • Genetics
  • Nutritional counseling
  • Healthy strategies
03

Who can participate

Ages eligible
6 Years to 7 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:

Children at 1st and 2nd grades from schools of the Madrid Community that have accepted to participate in the study, whose parents have approved and signed the informed consent.

04

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
221 participants (actual)

Study arms

  • Experimental
    Intervention group

    Schools receive healthy actions aimed to reduce the risk of developing obesity, along the study

    Behavioral: Nutritional counseling

  • No intervention
    Control group

    Schools monitored along the study but won't receive any healthy action.

Interventions

  • BehavioralNutritional counseling

    Schoolchildren, parents and teachers from intervention schools, will regularly receive nutrition and healthy lifestyle guidelines performed by nutritionists. Moreover, workshops aimed to reinforce the healthy habits will also be held along the study.

05

What researchers measure

Primary outcomes

  1. Changes in the percentage of children with a diagnosis of obesity

    The International Obesity Task Force classification will be used to the diagnosis of obesity

    Time frame: There will be an initial assessment followed by 2 evaluations in the two consecutive years and a third and final evaluation 4 years after the initial assessment.

Secondary outcomes

  1. Changes in energy intake

    A 48h food record and the DIAL (Alce Ingenieria) software will be used to evaluate the energy intake (Kcal) of the studied population

    Time frame: There will be an initial assessment followed by 2 evaluations in the two consecutive years and a third and final evaluation 4 years after the initial assessment.

  2. Changes in body fat mass percentage

    The fat mass percentage will be measured using the Body Composition Monitor (BF511- OMRON HEALTHCARE UK, LT, Kyoto, Japan)

    Time frame: There will be an initial assessment followed by 2 evaluations in the two consecutive years and a third and final evaluation 4 years after the initial assessment.

  3. Physical activity

    A 24h physical activity questionnaire and the Institute of Medicine of the National Academies classification will be used to measure the physical activity level

    Time frame: There will be an initial assessment followed by 2 evaluations in the two consecutive years and a third and final evaluation 4 years after the initial assessment.

  4. Genetic predisposition to develop obesity

    A total of 26 SNPs related to obesity development will be analysed using saliva samples and the QuantStudio™ 12K Flex (Life Technologies) equipment. (Machine learning predictive modeling)

    Time frame: There will be an initial assessment at the beginning of the study

06

Study locations

1 site
  • IMDEA-Food
    Madrid, 28049, Spain
07

References and documents

Publications

  • Marcos-Pasero H, Aguilar-Aguilar E, de la Iglesia R, Espinosa-Salinas I, Molina S, Colmenarejo G, Martinez JA, Ramirez de Molina A, Reglero G, Loria-Kohen V. "GENYAL" Study to Childhood Obesity Prevention: Methodology and Preliminary Results. Front Nutr. 2022 Mar 8;9:777384. doi: 10.3389/fnut.2022.777384. eCollection 2022. PubMed 35350411 ↗
  • Marcos-Pasero H, Aguilar-Aguilar E, de la Iglesia R, Espinosa-Salinas I, Gomez-Patino M, Colmenarejo G, de Molina AR, Reglero G, Loria-Kohen V. Association of calcium and dairy product consumption with childhood obesity and the presence of a Brain Derived Neurotropic Factor-Antisense (BDNF-AS) polymorphism. Clin Nutr. 2019 Dec;38(6):2616-2622. doi: 10.1016/j.clnu.2018.11.005. Epub 2018 Nov 20. PubMed 30501916 ↗

Individual participant data

Plan to share: Undecided

08

Registry details

Key details

Study ID
NCT03419520
Lead sponsor
IMDEA Food
Responsible party
Viviana Loria Kohen (Senior Nutritionist, PhD in Medicine. Researcher and Group leader of the Nutrition and Clinical Trials Unit, IMDEA Food) — Principal investigator
First posted
Feb 5, 2018
Start date
Feb 15, 2017
Primary completion
Mar 30, 2017
Completion
Mar 30, 2017
Last update
Aug 13, 2019

Study contacts

Guilerrmo Reglero, Professor
study director · IMDEA Food
Ana Ramirez-de Molina, PhD
study director · IMDEA Food

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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