Continuous Glucose Monitor Derived Glucose Dynamic Index as a Diagnostic Marker for Progression to Type 1 Diabetes
Viral Shah
Principal Investigator
Brief Description
This study is being done to develop a way to use information from a continuous glucose monitor (CGM) to predict a person’s progression through the Stages of Type 1 Diabetes (T1D).
A CGM is a wearable device that continuously measures and displays a person’s blood sugar levels throughout the day and night by sensing the glucose (blood sugar levels) in the fluid under the skin, providing real-time updates without the need for finger pricks.
Detailed Description
This study will include 2 groups identified as being in Stage 1 or Stage 2 of T1D based on either data from their TrialNet Pathway to Prevention visits or from data that
has previously been obtained through clinical monitoring. Participants will be asked to wear a CGM every 3 months and have an OGTT every 6 months for 2 years or until diagnosed with Stage 3 T1D.
Eligibility of study
Inclusion Criteria
• ≥4 years of age and older
• Participants in Stage 1 or Stage 2 T1D monitored in the Pathway to Prevention (PTP) study at
a Type 1 Diabetes TrialNet center. Participants that exit PTP due to use of teplizumab or
enrollment into a prevention trial, may continue in study if all other criteria are met.
• For IU ONLY: Participants in Stage 1 or Stage 2 T1D monitored outside of TrialNet Pathway to
Prevention study (PTP).
• Willing to use a continuous glucose monitoring (CGM) system with a compatible smartphone
for glucose data collection.
Exclusion Criteria
• History of diabetes
• Pregnancy
• Allergy to adhesives.
• Use of any medication that in the judgement of the investigator will affect the wearing of the
sensors or glucose metabolism.
• Individuals with severe concurrent medical conditions that could confound glucose monitoring
data (e.g., terminal illness, or major organ failure).
• In the opinion of investigator, any condition that may confound study results or may hinder
participants’ ability to comply with study protocol.