- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05400863
Effect of NNS on Metformin/GDF15, Pilot
September 20, 2023 updated by: University of Florida
Can Sweetened Drinks Impair Therapeutic Effects of Metformin?
Metformin use for diabetes has the benefit of causing weight loss in some.
The investigators in a preclinical trial, demonstrated that mice consuming non-nutritive sweetened (NNS) drinks had worse glucose improvements and weight loss than mice consuming sugar drinks or water.
This study will conduct a pilot to determine if this translates into pediatric clinical practice.
The hypothesis is that NNS drinks impair metformin-induced satiation, weight loss, and glucose tolerance.
Study Overview
Status
Recruiting
Conditions
Detailed Description
This study will enroll 40 children ages 10-21 years (will be recruited from the University of Florida (UF) Pediatric Obesity& Metabolic clinic in Gainesville) and randomize eligible participants into a 2-arm, 12-week Metformin (500mg BID) intervention (n=20/group) in which one arm will be randomized to receive education and counseling to avoid all sweetened drinks (drink water only) and the other to avoid drinks sweetened with sugar (can have diet drinks sweetened with NNS).
Participants will be asked to consume minimum of 3 drinks/day In the initial visit (baseline visit) the investigators will do a complete evaluations of physical health and eating behaviors.
The investigators will draw lab work including A1c and GDF15 levels.
The investigators will also get anthropometric measurements of height and weight to calculate body mass index (BMI).
For assessment of beverage intake, the investigators reviewed questionnaires validated in children and adolescents in the past 10 years to better reflect currently available beverages.
The investigators combined data from BEVQ-15 (that was validated in children aged 6-18 years) and BFQ(17 items questionnaire validated in young adults, aged 16-30 years),and edited further to make the important distinction between unsweetened and artificially sweetened drinks while adding several examples to each category to help improve correct selection.
The investigators will also limit to weekly intake assessments.
Data will be collected biweekly.
Following completion of the 12-week intervention, participants will return fasting to assess the effectiveness of the metformin treatment on the following: hemoglobin A1C (A1c), Growth Differentiation Factor 15 (GDF15), with BMI and 24-hour dietary recall, including questions about change in hunger while on metformin.
The investigators predict that metformin-induced GDF15 levels will be blunted in participants consuming NNS beverages.
To improve compliance and decrease attrition, The investigators will provide performance feedback and interpretation of physiological parameters.
Study Type
Interventional
Enrollment (Estimated)
40
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Esraa Ismail, MD
- Phone Number: 352-294-5069
- Email: esraaismail@ufl.edu
Study Contact Backup
- Name: Jennifer Hosford
- Phone Number: 352-294-5759
- Email: jennifer.hosford@medicine.ufl.edu
Study Locations
-
-
Florida
-
Gainesville, Florida, United States, 32608
- Recruiting
- UF pediatric metabolic and obesity clinic
-
Contact:
- Angelina Bernier, MD
- Phone Number: 352-265-7337
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
10 years to 21 years (Child, Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Eligible patients will have already been prescribed Metformin as part of their normal clinical care
- Must also be aged 10-21 years
- Have a diagnosis of obesity (BMI > 95th%ile or >30 kg/m2 - whichever is lower) and pre-diabetes (A1c between 5.7 and 6.4%)
Exclusion Criteria:
- Previous treatment with oral hypoglycemic medications, (2) resting systolic blood pressure (SBP)>180 mm/Hg or diastolic blood pressure (DBP)>100mm/Hg, (3) self-reported pregnancy
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Avoid Sugary Drinks and Artificially Sweetened Drinks ( plus Metformin)
Counseling on Beverage Intake to avoid sugary sweetened and NNS (non-nutritive sweetened) drinks plus Metformin therapy (subjects will be given 12-week Metformin (500mg BID) as standard of care therapy).
|
Subjects will receive education and counseling to avoid all sweetened drinks (drink water only).
Participants will be asked to consume minimum of 3 drinks/day
|
Active Comparator: Avoid sugary drinks only, allowed water and drinks with NNS (plus Metformin)
Counseling on Beverage Intake to avoid sugary drinks (allowed water and drinks sweetened with NNS) plus Metformin therapy (subjects will be given 12-week Metformin (500mg BID) as standard of care therapy).
|
Subjects will avoid drinks sweetened with sugar (can have diet drinks sweetened with NNS).
Participants will be asked to consume minimum of 3 drinks/day
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
change in BMI z-score between the two groups at 12 weeks
Time Frame: 12 weeks
|
Compare post-intervention (metformin) body weight between participants randomized to receive education and counseling to either a) avoid all sweetened drinks (drink water only) or b) avoid drinks sweetened with sugar (can have diet drinks sweetened with NNS)
|
12 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
improvement of A1C due to metformin between the 2 groups at 12 weeks
Time Frame: 12 weeks
|
Compare post-intervention change in glycemic control between participants randomized to receive education and counseling to either a) avoid all sweetened drinks (drink water only) or b) avoid drinks sweetened with sugar (can have diet drinks sweetened with NNS)
|
12 weeks
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
metformin-induced rise in GDF15 in both groups at 12 weeks
Time Frame: 12 weeks
|
Compare post-intervention rise in GDF15 between participants randomized to receive education and counseling to either a) avoid all sweetened drinks (drink water only) or b) avoid drinks sweetened with sugar (can have diet drinks sweetened with NNS)
|
12 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Angelina Bernier, MD, University of Florida
- Principal Investigator: Esraa Ismail, MD, University of Florida
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
April 21, 2022
Primary Completion (Estimated)
May 1, 2024
Study Completion (Estimated)
May 1, 2024
Study Registration Dates
First Submitted
April 13, 2022
First Submitted That Met QC Criteria
May 31, 2022
First Posted (Actual)
June 2, 2022
Study Record Updates
Last Update Posted (Actual)
September 21, 2023
Last Update Submitted That Met QC Criteria
September 20, 2023
Last Verified
September 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- IRB202102435
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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