Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT04385888 |
Other study ID # |
Pro00012436 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
October 28, 2020 |
Est. completion date |
December 30, 2023 |
Study information
Verified date |
May 2024 |
Source |
George Washington University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This study will investigate whether low-calorie sweeteners (LCS) are helpful or harmful for
preventing diabetes complications among children with Type 1 Diabetes (T1D).
Description:
Eligible participants will be scheduled for a baseline visit. During the week prior, they
will be instructed to continue usual dietary habits and complete an online photo-assisted
food record, with parental assistance. At the baseline visit, height and weight will be
measured, a spot urine sample will be collected, and a blood draw will be performed.
Participants will have their CGM data for the past two weeks downloaded. In a subset of
participants, an abdominal MRI will also be performed.
Subjects will then be randomized to either: 1) low-calorie sweetener (LCS) restriction or 2)
continuation of usual LCS intake (control). All participants (both groups) and their parent
will undergo a brief, 20-minute orientation where the PI and study dietitian will provide an
introduction to the study, instructions on completing food records, education on CGM. Those
in the intervention group will be given sample replacement beverages and a brochure on
avoiding LCS to take home which will include a list of specific foods and beverages
containing LCS to avoid during the study. Participants in the control group will be counseled
on healthy eating as those in the intervention group (in accordance with standard dietary
guidance for T1D management), with the exception of information and resources for avoiding
LCS.
In both groups, text messages will be sent to parents 3X/week with reminders that their child
should avoid LCS or continue usual intake, per randomization. Adherence will be monitored
through collection of spot-urine samples for measurement of sucralose and ace-K
concentrations. daily text message beverage logs completed by the parent, and photo-assisted
food records with parent assistance in Weeks 0, 1, 6, and 12. During Week 6, participants and
their parent will attend a mid-intervention telemedicine booster visit, during which the PI
and/or study RA will reinforce the intervention and remind participants to mail back a spot
urine sample using materials provided by the study team at baseline. Participants will be
reminded of the study instructions, including the importance of inserting the DEXCOM G6
sensor (provided by study team) at the beginning of Week 11.
At the end of Week 12, participants and their parent will return for follow-up. Participants
will have their CGM data downloaded using DEXCOM Clarity™ software. Height and weight will be
measured and a second blood draw performed. Those who had an MRI at the baseline visit (n=30)
will undergo a second abdominal MRI. Those randomized to the intervention will be
purposefully sampled and asked to complete a ~20 minute qualitative interview and ~5 minute
satisfaction survey, together with their parent, about their study experience and the
challenges of LCSB restriction.