NCT03889522

Brief Summary

The investigators aim to further the understanding of environmental factors that may underlie variations in body composition seen in youth with Type 1 diabetes (T1D). Non-caloric artificial sweeteners, broadly consumed in many individuals with T1D, are a modifiable dietary factor that may be associated with negative health outcomes, particularly those relevant to the future risk of diabetes-related complications. Investigators will measure body composition (the amount of fat and muscle in the body and where the fat is stored) using a bioelectrical impedance analysis machine and DEXA scanner. Blood will be drawn for the following labs: HbA1c, lipid panel, comprehensive metabolic panel and leptin. Participants will also answer questions about their diets and consumption of artificial sweeteners.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
21

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2019

Geographic Reach
1 country

1 active site

Status
completed

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

February 20, 2019

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 26, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

May 1, 2019

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 25, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 25, 2021

Completed
Last Updated

March 16, 2026

Status Verified

March 1, 2026

Enrollment Period

1.8 years

First QC Date

February 20, 2019

Last Update Submit

March 12, 2026

Conditions

Outcome Measures

Primary Outcomes (10)

  • Quantify artificial sweetener consumption in youth with type 1 diabetes

    To quantify artificial sweetener consumption patterns in a cohort of youth with T1D through novel food frequency questionnaires (Non-caloric artificial sweetener Food Frequency Questionnaire for Food and the Non-caloric artificial sweetener Food Frequency Questionnaire for Beverages) and bioassay

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and body composition

    To characterize the relationship between artificial sweetener consumption and measures of body composition, as measured by bioelectrical impedance analysis and DXA scanning, which provide information on the amount and distribution of fat and muscle in the body.

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and kidney function

    To determine if the level of artificial sweeteners is associated with the serum creatinine level.

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and liver function

    To determine if the level of artificial sweeteners is associated with serum AST and ALT levels

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and lipid levels.

    To characterize the relationship between artificial sweetener consumption and metabolism and the levels of fasting lipids (triglyceride level, HDL, LDL, and total cholesterol).

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and metabolism.

    To characterize the relationship between artificial sweetener consumption and metabolism, as measured by a leptin level.

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and glycemic control

    To characterize the relationship between artificial sweetener consumption and measures of glycemic control, as determined by the presence or absence of microalbuminuria.

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and glycemic control

    To characterize the relationship between artificial sweetener consumption and measures of glycemic control, as measured by total daily insulin dose.

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and glycemic control

    To characterize the relationship between artificial sweetener consumption and measures of glycemic control, as measured by the percentage of time participants are within ideal range for blood glucose levels (as measured by glucose monitors.)

    Study Duration (1 year)

  • Examine the relationship between artificial sweeteners and hemoglobin A1c

    To characterize the relationship between artificial sweetener consumption and measures of glycemic control, as measured by serum HbA1c.

    Study Duration (1 year)

Interventions

BIA is a radiation-free and clinically accessible measure of body composition \[47, 49\]. An electrode is placed on the youth's extremities and they are asked to sit for 10 minutes. The youth's height and weight is manually inputted and the measure is obtained (approx. 90 seconds to complete). BIA sends a low level of electrical current through the body and measures the impedance to the current based on fat, muscle, bones providing a measure of body composition.

Also known as: BIA

The DXA total body scan provides measurements of percent body fat, lean and fat free mass throughout the body. Youth lay on a table while the machine moves around them. The process takes about 3 minutes and 20 seconds.

Also known as: DXA
Blood drawDIAGNOSTIC_TEST

Blood will be drawn to assess the following labs: HbA1c, leptin, lipid panel and comprehensive metabolic panel.

Eligibility Criteria

Age5 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Youth receiving care at the Children's Hospital of Wisconsin Diabetes Clinic.

You may qualify if:

  • Males and females aged 5-17 years with a clinical diagnosis of T1D of ≥ 6 months in duration
  • BMI between the 5th and 95th percentile

You may not qualify if:

  • Presence of severe, active disease that requires the use of chronic medication, with the exception of well-controlled autoimmune thyroiditis/hypothyroidism or celiac disease that is well-controlled on a gluten free diet.
  • Diabetes other than T1D
  • Chronic illness known to affect glucose metabolism
  • Psychiatric impairment, with the exception of well-controlled depression or anxiety, that will affect the ability to participate in the study
  • Female participants of child-bearing age with reproductive potential must not be knowingly pregnant
  • Any condition that, in the investigator's opinion, may compromise study participation or may confound the interpretation of the study results

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Blood plasma will be used for metabolomic analyses. Samples will be stored and used until none is left.

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 20, 2019

First Posted

March 26, 2019

Study Start

May 1, 2019

Primary Completion

February 25, 2021

Study Completion

February 25, 2021

Last Updated

March 16, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations