Eating Behavior in Children

NCT ID: NCT00320177

Last Updated: 2019-12-12

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 263 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2003-11-26
• Study Completion Date: 2014-10-28

Brief Summary

This study will explore the eating habits of children and determine if eating behavior is linked to genetics.

Children between 8 and 17 years of age may be eligible for this study. It will include children who have experienced loss of control over eating, children who report overeating without loss of control, and children who report experiencing neither of the above. Candidates will be screened with the following:

• Medical history and brief physical examination, including height, weight, and body fat measurements. Body fat is measured using a device called a Bod Pod. The child sits inside the device for about 5 minutes and the machine determines body fat by measuring air movement. The child must wear a tight-fitting swimsuit for this test.
• Urine test to look for sugar or protein in the urine and to test for pregnancy in females.
• Blood tests for routine chemistries and for gene studies related to eating behaviors.
• Questionnaires and interviews about the child's general health and eating habits.
• Acclimatization to test meal conditions for the study. The child is given a yogurt shake to drink and fills out rating scales before and after the drink.

Participants will come to the Clinical Center two times at 8:30 a.m. for laboratory meal testing. At each visit, the child will do the following:

• In the morning, eat a breakfast of apple juice and a buttered English muffin.
• Between 10 a.m. and 2 p.m., pursue activities at the Clinical Center recreation facility or the NIH classroom, but may not eat or drink anything that contains calories.
• At 2 p.m., fill out rating scales about his or her hunger level.
• At 2:30 p.m., eat from a food buffet that will be made available.
• After eating, repeat rating scales about hunger level.

The procedure for both visits will be the same, except at one visit the child will be instructed to eat as much as you would eat at a normal meal, and at the other visit, the instruction will be to let yourself go and eat as much as you want.

Detailed Description

Little is known about the eating habits of children under laboratory conditions. In this exploratory study, we aim to examine the relationships between measured food intake during meals, binge eating behaviors as assessed by interview, and polymorphisms in genes believed to be involved in the regulation of energy intake. We will study children who report they have experienced loss of control over eating, children who report overeating without loss of control, and children who report neither of these episodes, and assess the impact of two different meal instructions on their eating behavior. We will ask children to eat a meal in the laboratory setting on two occasions. The only difference between the two meals will be a pre-meal instruction: Participants will be asked either to eat 'normally' (the 'normal meal' instruction) or to 'let yourself go' (the 'binge meal' instruction). Participants will be assessed for affective state; degree of hunger, fullness, and desire to binge; presence of overeating or loss of control; eating attitudes and dieting; and general school and social adjustment. Participants' DNA will be sequenced to seek polymorphisms in genes relevant for appetite, such as the leptin and melanocortin 4 receptor genes, to examine whether genetic variation in the leptin signaling pathway can account for variation in reported or actual eating behaviors. Samples will also be obtained for hormones believed to be relevant for food intake. By accurately describing eating behavior in children in relation to their age, weight, history of dieting and/or overeating behavior, and genetic variation, we can refine current theoretical models of disordered eating.

Conditions

Eating Behaviors

Keywords

Binge Eating; Food Intake; Obesity; Melanocortin-4 Receptor Gene; Child; Macronutrient Composition

Eligibility Criteria

Inclusion Criteria

• Good general health.
• Age greater than 7 and less than 18 years.
• Participants must have negative urine glucose and normal electrolytes, hepatic, and thyroid function or they will be referred for treatment.

Exclusion Criteria

• Any major medical problem likely to affect caloric intake (e.g., significant cardiac or pulmonary disease likely to result in hypoxia or decreased perfusion).
• History of an eating disorder, other than binge eating disorder, or a current psychiatric disorder. Identification of any such illness will lead to immediate referral to a mental health professional.
• Recent weight change of greater than 5 lbs. within the previous three (3) months.
• Pregnancy. If a potential participant is found to be pregnant, we will inform the child, as an 'emancipated minor,' and let her inform her parent(s).
• Individuals who have, or whose parent or guardians have, current substance abuse or a diagnosed psychiatric disorder or other condition that, in the opinion of the investigators, would impede competence or compliance or possibly hinder completion of the study.
• Participants currently prescribed SSRI's neuroleptics, tricyclics, stimulants, or any medication likely to affect caloric intake. Recent use (with six months) of weight loss medications.

• Minimum Eligible Age: 8 Years
• Maximum Eligible Age: 17 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NIH

Sponsor Role: lead

Principal Investigators

Jack A Yanovski, M.D.

Role: PRINCIPAL_INVESTIGATOR

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Locations

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, United States

Countries

United States

References

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Other Identifiers

04-CH-0050

Identifier Type: -

Identifier Source: secondary_id

040050

Identifier Type: -

Identifier Source: org_study_id