Completed

Exercise Impact on Insulin Sensitivity in High-Risk Children for Type 2 Diabetes

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Study AimThis study aims to evaluate the impact of exercise on insulin sensitivity in children who are at high risk for developing type 2 diabetes.
What is being tested

Data Collection

Who is being recruted

Diabetes Mellitus
+2

+ Diabetes Mellitus, Type 2
+ Endocrine System Diseases
From 12 to 15 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1
Interventional
Study Start: December 2002
See protocol details

Summary

Principal SponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: December 1, 2002Actual date on which the first participant was enrolled.

This is a pilot study to examine the short-term effects of supervised exercise on metabolic risk factors for type 2 diabetes mellitus in children from a population that is at high risk for this disease. We hypothesize that exercise will significantly improve insulin sensitivity in all children, especially in children who are already insulin resistant, thereby lowering the risk that they will go on to develop type 2 diabetes mellitus. The specific hypotheses being tested are: 1. Insulin resistance will be most evident in overweight children while an impaired ability of the pancreas to release insulin will be most evident in children with a family history of type 2 diabetes mellitus. 2. Exercise will significantly improve insulin resistance (as measured by the fasting glucose/insulin ratio) with little or no effect on insulin secretory capacity (as measured by circulating insulin concentration at 1, 3, and 5 minutes following an intravenous glucose load) in children. 3. Participation in a school-based health, nutrition, and exercise education program will have long-term beneficial effects on health-related behaviors and on insulin resistance.

Official TitlePrevention of Type 2 Diabetes Mellitus in Children 
NCT00073268
Principal SponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
300 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Treatment Study
These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

How participants are assigned to different groups/arms
In this clinical study, participants are assigned to groups based on specific criteria, such as their medical history or a doctor's recommendation. This approach ensures that treatments are given to those who may benefit the most, based on known factors.

Other Ways to Assign Participants
Randomized allocation: Participants are assigned randomly, like flipping a coin, to ensure fairness and reduce bias.
None (Single-arm trial): If the study has only one group, all participants receive the same treatment, and no allocation is needed.

How treatments are given to participants
In this study, all participants receive the same treatment. This approach is often used to evaluate the effects of a single intervention without comparing it to another.

Other Ways to Assign Treatments
Parallel assignment: Participants are split into separate groups, each receiving a different treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.

How the interventions assigned to participants is kept confidential
Participants do not know which treatment they are receiving, but researchers do. This helps prevent bias from participants' expectations while still allowing researchers to monitor the study closely.

Other Ways to Mask Information
Open-label: Everyone knows which treatment is being given.
Double-blind: Neither participants nor researchers know which treatment is given.
Triple-blind: Participants, researchers, and outcome assessors do not know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
From 12 to 15 YearsRange of ages for which participants are eligible to join.
Healthy volunteers not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Diabetes Mellitus
Diabetes Mellitus, Type 2
Endocrine System Diseases
Metabolic Diseases
Glucose Metabolism Disorders
Criteria

Early adolescent

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 2 locations
Suspended
Russ Berrie PavilionNew York, United StatesSee the location
Suspended
New York Presbyterian HospitalNew York, United States
Completed2 Study Centers