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Virtual Weight Management and Continuous Glucose Monitoring in Patients With Type 2 Diabetes: A Randomized Controlled
Peter T Katzmarzyk1, Kimberly Drews1, Jamy D Ard2
1Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Obesity (Silver Spring, Md.)
|April 28, 2026
Summary
Behavioral weight management integrated with continuous glucose monitoring (CGM) significantly improved HbA1c and body weight in adults with type 2 diabetes and overweight or obesity compared to usual care.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Digital Health
Background:
- Type 2 diabetes management often involves addressing overweight and obesity.
- Continuous Glucose Monitoring (CGM) offers real-time glucose data.
- Behavioral weight management programs can support lifestyle changes.
Purpose of the Study:
- To evaluate the effectiveness of integrating behavioral weight management with CGM for adults with overweight/obesity and type 2 diabetes.
- To compare this integrated approach against usual care.
Main Methods:
- A randomized clinical trial with 151 participants (intervention vs. usual care).
- Intervention group received a diabetes-tailored behavioral weight management program and CGM.
- Usual care included a dietitian session and educational materials.
Main Results:
- The intervention group showed significantly greater reductions in HbA1c% (-0.87% vs. -0.41%) and percent body weight (-3.2% difference).
- Improvements in CGM metrics, diabetes stress, and treatment satisfaction were significantly greater in the intervention group.
- The primary outcome, HbA1c% change, was significantly improved in the intervention group (p=0.037).
Conclusions:
- Integrating CGM with a digital weight management program is effective for improving glycemic control and weight in adults with type 2 diabetes.
- This approach offers significant benefits over usual care for key health indicators and patient-reported outcomes.
- The findings support the use of technology-enhanced behavioral interventions for managing type 2 diabetes and associated weight issues.
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