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NCT03945747Active, not recruiting

MEtabolic and Renal Effects of AutoMAted Insulin Delivery Systems in Youth With Type 1 Diabetes Mellitus

MEtabolic and Renal Effects of AutoMAted Insulin Delivery Systems in Youth With Type 1 Diabetes Mellitus (MERMAID-T1D)

Source: ClinicalTrials.gov · Last updated 30 Mar 2025

Brief summary (registry, in English)

In type 1 diabetes (T1DM), automated insulin delivery (AID) systems such as the hybrid closed loop artificial pancreas (HCL AP) combine the use of an insulin pump, continuous blood sugar monitor, and control algorithm to adjust background insulin delivery to improve time in target blood sugar range. Systems such as the predictive low glucose suspend system (PLGS) pause insulin delivery to try and reduce low blood sugars. We aim to complete a pilot study involving recruitment of youth ages 7 to 18 years from the following groups with type 1 diabetes: control participants consisting of youth on either multiple daily insulin injections or conventional insulin pump therapy that plan to continue with their current treatment modality, youth being transitioned to the HCL AP system, and youth being transitioned to the PLGS system. Individuals will be recruited into each of the aforementioned study groups based on their own expressed desire to either continue on MDI/standard insulin pump therapy or transition to either the HCL AP or PLGS systems. The decision to either continue with current therapy or transition therapy will remain entirely up to the participant and their family and will be based on personal preference and insurance coverage for that individual. We will not be randomizing the participants to any given treatment group during this study but rather will be recruiting based on the participant's decision. We would like to complete a physical exam with pubertal staging, collect blood and urine samples to evaluate cardiometabolic and renal markers, and complete a DXA scan to evaluate total lean and fat mass. After 3-6 months of either continuation of current treatment with either multiple daily insulin injections or conventional insulin pump therapy or transitioning to the HCL AP or PLGS systems, we would like to repeat the previously described blood, urine, and imaging tests for comparison. We are interested in examining the impact of the HCL AP and PLGS systems on maintaining blood sugars in target range, insulin sensitivity, and markers of cardiometabolic and renal function. We hypothesize that pauses in insulin delivery, as seen in the setting of automated insulin delivery systems, will result in improvements in insulin sensitivity, cardiometabolic markers, and renal function markers.

Status (registry)
Active, not recruiting
Study type
Observational
Enrollment
50 (estimated)
First submitted
8 May 2019
Start date
14 Aug 2019
Primary completion date
1 Aug 2026
Lead sponsor
University of Colorado, Denver
NCT number
NCT03945747

What you commit to

  • Study type: Observational
  • Planned participants: 50
  • From 14 Aug 2019 to the primary completion date, 1 Aug 2026
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Non-type 1 diabetes mellitus

Lab values

  • Receiving treatment with non-insulin glucose-altering medications including oral anti-hyperglycemic medications, steroids, or antipsychotics

Other

  • Pregnant or breastfeeding
  • Following a ketogenic diet

Who the study is looking for

  • Age 7-18 years
  • Type 1 diabetes with at least two of the following criteria: diabetes-associated antibody-positivity, rapid conversion to insulin requirement after diagnosis, absent c-peptide, or DKA at diagnosis
  • Currently receiving insulin therapy by multiple daily injections or standard insulin pump therapy

Age in the registry: 7 years to 18 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Save your city in your profile to sort them by distance.

SiteCityCountrySite status
Children's Hospital Colorado
Coordinator of this site? Confirm its status
AuroraUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.