NCT05966870

Brief Summary

The study design is a prospective observational study in adolescents who are at risk for developing Type 2 Diabetes (T2D), to evaluate the effectiveness of sparkling water to reduce dietary intake of added sugars and thereby improve glycemia. Study data on consumption and the flavor profile of sparkling water will serve as a measure of acceptability. The study intervention will be to provide carbonated flavored sparkling water for 12 weeks to adolescents (and their families) who have a usual intake of 2 or more servings of sugar sweetened beverages (SSB) per day and are at a high risk for developing type 2 diabetes. Study measures will be obtained before and after the exposure to carbonated flavored sparkling water and each participant will serve as his/her own control. To encourage the participants to substitute the carbonated flavored sparkling water, study personnel will send them weekly iMessages through the Technology Assisted Dietary Assessment (TADA) app. In addition, investigators will monitor the participants' diet, using the TADA app, every two weeks, for 4 days. Study measurements will be obtained at baseline, before the intervention, during and at the end of the 12 week intervention. Objective: Determine the effect of reducing added sugars intake by substituting carbonated sparkling water on T2D risk in adolescents. Hypothesis: Adolescents who decrease consumption of SSB by substituting sparkling water will experience decreased blood glucose concentrations and increased insulin sensitivity during an oral glucose tolerance test and decreased glucose excursions during continued glucose monitoring, compared to those who do not decrease consumption of SSB.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
22

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2020

Geographic Reach
1 country

1 active site

Status
terminated

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

Study Start

First participant enrolled

March 9, 2020

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 20, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 20, 2021

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

July 10, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

August 1, 2023

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

February 12, 2025

Completed
Last Updated

February 12, 2025

Status Verified

January 1, 2025

Enrollment Period

1.3 years

First QC Date

July 10, 2023

Results QC Date

July 17, 2024

Last Update Submit

January 21, 2025

Conditions

Outcome Measures

Primary Outcomes (8)

  • Change in Dietary Consumption of SSB and Sparkling Water

    Dietary consumption of SSB and Sparkling water were assessed using Technology Assisted Dietary Assessment (TADA) system, a mobile food record

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in 2 Hour Glucose Concentrations

    Oral glucose tolerance testing will be performed in the morning after participants have undergone an overnight fast for 8 hours at baseline and Week 12. Blood samples will be obtained at -15, 0, 15, 30, 60, 90,120 minutes, relative to ingestion of a glucose drink at a dose of 1.75 g/kg body weight (maximum 75 g glucose).

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Fasting Glucose

    Fasting glucose will be measured after overnight fast for 8 hours, just prior to the initiation of the baseline oral glucose tolerance testing at Baseline and Week 12.

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Hemoglobin A1c (HbA1c) Concentration

    HbA1c will be measured just prior to the initiation of the oral glucose tolerance testing at baseline and Week 12.

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Whole-body Insulin Sensitivity Index (WBISI)

    For measures of insulin action, which takes into account serum glucose and insulin concentrations, serum fractions from the oral glucose tolerance tests will be frozen at -80 degrees C until analysis. The inverse of fasting insulin (1/fasting insulin) will be used as a surrogate estimate of whole-body insulin sensitivity.

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Insulinogenic Index (IGI)

    For measures of insulin action, which takes into account serum glucose and insulin concentrations, serum fractions from the oral glucose tolerance tests will be frozen at -80 degrees C until analysis. Early phase insulin secretion during the OGTT will be expressed as the insulinogenic index (IGI) or the ratio of the incremental response of insulin to glucose at 30 minutes of the OGTT (IGI30).

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Oral Disposition Index (oDI)

    For measures of insulin action, which takes into account serum glucose and insulin concentrations, serum fractions from the oral glucose tolerance tests will be frozen at -80 degrees C until analysis. The oDI will be calculated as IGI30 × 1/fasting insulin.

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Glycemic Control

    We will collect free-living, glucose measures for 6 consecutive days using the Continuous Glucose Monitoring (CGM; FreeStyle Libre Pro System; Abbott; Abbott Park, IL). The CGM will be administered to participants 6 days before the start of Week 0 and Week 12, and the monitor will be removed at the clinic visit. For the placement of the CGM, the back of the participant's upper arm will be cleaned with an alcohol wipe and dried. The sensor will be firmly adhered to the arm with the needle application inserted. The FreeStyle sensor measures glucose every 15 sec and records an average glucose value every 15 min for up to 14 days.

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

Secondary Outcomes (15)

  • Change in Flavor Perception of Beverage Sweetness - Tested With a Beverage With Sugar Concentration 0% (Weight Per Volume)

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Flavor Perception of Beverage Sweetness - Tested With a Beverage With Sugar Concentration 1.8% (Weight Per Volume)

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Flavor Perception of Beverage Sweetness - Tested With a Beverage With Sugar Concentration 2.8% (Weight Per Volume)

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Flavor Perception of Beverage Sweetness - Tested With a Beverage With Sugar Concentration 4.4% (Weight Per Volume)

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • Change in Flavor Perception of Beverage Sweetness - Tested With a Beverage With Sugar Concentration 6.8% (Weight Per Volume)

    Between 0 and 12 weeks (pre-testing was at week 0, post-testing at week 12)

  • +10 more secondary outcomes

Study Arms (1)

Replacement of SSB with Unsweetened Sparkling Beverage

EXPERIMENTAL

To encourage participants to substitute sparkling water flavored water for SSB intake, we will provide enough supplies of the drinks to adolescents (and their families) each month. We will also provide iPhones with the TADA app to the adolescent participants. Study staff will remind participants to consume the sparkling water through iMessages sent through the TADA app.

Other: Unsweetened flavored sparkling water

Interventions

Unsweetened sparkling waters are carbonated water with flavoring, completely unsweetened, which are commercially available in soda-like flavors like cola

Replacement of SSB with Unsweetened Sparkling Beverage

Eligibility Criteria

Age10 Years - 21 Years
Sexall(Gender-based eligibility)
Gender Eligibility Detailsparticipant eligibility is based on self-representation of gender identity
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Male and female adolescents (age 10-21 years)
  • Overweight and Obese (body mass index ≥ 85 percentile for age and sex)
  • High consumers of SSB, defined as \>2 or more servings per day
  • Family history of diabetes in a first or second degree relative OR prediabetes (i.e., evidence of either impaired glucose tolerance (HbA1c 5.7 - 6.4%, or plasma glucose between 140-199 mg/dL at 2 hours on oral glucose tolerance testing) or impaired fasting plasma glucose (≥ 100 mg/dL))

You may not qualify if:

  • Use of medications that affect glucose metabolism (such as glucocorticoid-containing medications or atypical antipsychotics). We will not exclude female participants who currently use, are planning to use, or planning to stop taking oral contraceptives.
  • Syndromic obesity (such as Prader Willi, hypothalamic obesity, or Laurence-Moon-Biedl)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Indiana University School of Public Health

Bloomington, Indiana, 47405, United States

Location

Related Publications (8)

  • Andes LJ, Cheng YJ, Rolka DB, Gregg EW, Imperatore G. Prevalence of Prediabetes Among Adolescents and Young Adults in the United States, 2005-2016. JAMA Pediatr. 2020 Feb 1;174(2):e194498. doi: 10.1001/jamapediatrics.2019.4498. Epub 2020 Feb 3.

    PMID: 31790544BACKGROUND
  • Banfield EC, Liu Y, Davis JS, Chang S, Frazier-Wood AC. Poor Adherence to US Dietary Guidelines for Children and Adolescents in the National Health and Nutrition Examination Survey Population. J Acad Nutr Diet. 2016 Jan;116(1):21-27. doi: 10.1016/j.jand.2015.08.010. Epub 2015 Sep 26.

    PMID: 26391469BACKGROUND
  • Reedy J, Krebs-Smith SM. Dietary sources of energy, solid fats, and added sugars among children and adolescents in the United States. J Am Diet Assoc. 2010 Oct;110(10):1477-84. doi: 10.1016/j.jada.2010.07.010.

    PMID: 20869486BACKGROUND
  • Bailey RL, Fulgoni VL, Cowan AE, Gaine PC. Sources of Added Sugars in Young Children, Adolescents, and Adults with Low and High Intakes of Added Sugars. Nutrients. 2018 Jan 17;10(1):102. doi: 10.3390/nu10010102.

    PMID: 29342109BACKGROUND
  • Boushey CJ, Kerr DA, Wright J, Lutes KD, Ebert DS, Delp EJ. Use of technology in children's dietary assessment. Eur J Clin Nutr. 2009 Feb;63 Suppl 1(Suppl 1):S50-7. doi: 10.1038/ejcn.2008.65.

    PMID: 19190645BACKGROUND
  • Running, C.A. Desensitization but not sensitization from commercial chemesthetic beverages. Food Quality and Preference 2018 Vol. 69 Pages 21-27; DOI: 10.1016/j.foodqual.2018.05.001

    BACKGROUND
  • Wang J, Light K, Henderson M, O'Loughlin J, Mathieu ME, Paradis G, Gray-Donald K. Consumption of added sugars from liquid but not solid sources predicts impaired glucose homeostasis and insulin resistance among youth at risk of obesity. J Nutr. 2014 Jan;144(1):81-6. doi: 10.3945/jn.113.182519. Epub 2013 Nov 6.

    PMID: 24198307BACKGROUND
  • Matsuda M, DeFronzo RA. Insulin sensitivity indices obtained from oral glucose tolerance testing: comparison with the euglycemic insulin clamp. Diabetes Care. 1999 Sep;22(9):1462-70. doi: 10.2337/diacare.22.9.1462.

    PMID: 10480510BACKGROUND

MeSH Terms

Conditions

Pediatric ObesityPrediabetic State

Condition Hierarchy (Ancestors)

ObesityOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesEndocrine System Diseases

Limitations and Caveats

Because of the Covid-19 pandemic, data were not collected for the following outcomes: * Change in Dietary consumption of SSB and Sparkling water assessed with the TADA system * 2 hour Glucose Concentrations Measured Using 2 hour Oral Glucose Tolerance Testing * Fasting glucose and Hemoglobin A1C * Insulin Sensitivity measures (WBISI, IGI, and oDI) * Glycemic Control Measured Using Continuous Glucose Monitoring * CVD Outcomes (Blood Triglycerides, Blood Pressure and Waist Circumference)

Results Point of Contact

Title
Nana Gletsu Miller
Organization
Indiana University

Study Officials

  • Nana Gletsu Miller, PhD

    Indiana University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Model Details: Prospective, before and after, cohort study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

July 10, 2023

First Posted

August 1, 2023

Study Start

March 9, 2020

Primary Completion

June 20, 2021

Study Completion

June 20, 2021

Last Updated

February 12, 2025

Results First Posted

February 12, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations