OGTT-CGMHome Glucose Tolerance Test Using Continuous Glucose Monitoring for Prediabetes

This study examines an innovative way to perform an oral glucose tolerance test (OGTT) at home for people with prediabetes. It compares doing the test at home using a continuous glucose monitor (CGM) with the traditional method done in a clinic. By making testing more accessible and less burdensome, the study aims to see if this home method can provide results as reliable as the clinic tests. The goal is to see if home testing can help in early detection of issues with blood sugar levels, potentially leading to better management of prediabetes. Participants in the study will be split into two groups. One group will start with a clinic-based OGTT, while the other will begin with the home-based OGTT. Each participant will experience both methods. During the home test, a CGM will track glucose levels continuously, while the clinic test will use blood samples. The study will measure how closely the results from the home method match those from the clinic method, look at how glucose levels vary between the two tests, and evaluate how practical and comfortable home testing is for participants. This approach might offer a more convenient way to monitor glucose tolerance without frequent clinic visits.