NCT07298850

A Study on the Effect of CGM Alone on Glycemic Metrics in Type 2 Diabetes Patients Not Using Insulin, Without Additional Interventions

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 120 (actual)
• Sponsor: Kangbuk Samsung Hospital · Academic / Other
• Sex: All
• Age: 19 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

This study evaluates the effect of using a real-time continuous glucose monitoring (CGM) system on blood sugar control in people with type 2 diabetes who do not use insulin. Participants will wear a CGM device (CareSens Air) for a total of two weeks. During the first week, the device will be set to "blinded mode," meaning participants cannot see their glucose readings. During the second week, the device will be switched to "unblinded mode," allowing participants to view their glucose levels and trends in real-time. The study aims to determine if simply seeing real-time glucose data can help patients improve their blood sugar control (such as increasing the time their blood sugar is in the target range) without receiving additional structured education on diet or exercise. Researchers will compare the glucose data collected during the blinded week with the data from the unblinded week.

Conditions

• Continuous Glucose Monitoring
• Type 2 Diabetes

Interventions

Type	Name	Description
DEVICE	Continuous glucose monitoring	All participants are adults with non-insulin-treated type 2 diabetes. Participants will wear a real-time continuous glucose monitoring (rt-CGM) device (CareSens Air) for a total of two weeks. The intervention consists of two consecutive phases: 1. Week 1 (Blinded Mode): Participants wear the CGM but cannot view their glucose readings. This period establishes baseline glycemic data. 2. Week 2 (Unblinded Mode): The same CGM session continues, but the mode is switched to "unblinded." Participants can view their real-time glucose levels and trend arrows. Throughout the study, no additional structured education (e.g., diet or exercise coaching) or medication adjustments by the investigators are provided. The study evaluates the effect of data visibility alone on glycemic metrics.

Timeline

• Start date: 2024-09-30
• Primary completion: 2025-07-30
• Completion: 2025-12-01
• First posted: 2025-12-23
• Last updated: 2025-12-23

Locations

1 site across 1 country: South Korea