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Online Continuous Glucose Monitoring with Coaching for Diabetes Prevention in Adults with Prediabetes and Obesity

Integrating Continuous Glucose Monitoring with Intensive Coaching in a Fully Online Lifestyle Intervention for Diabetes Prevention in Adults with Prediabetes and Obesity: A Two-Arm Pilot Randomised Controlled Trial (CGM-RCT Online Study)

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260731008
Enrollment
70
Registered
2026-07-31
Start date
2026-06-11
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prediabetes Obesity Type 2 diabetes mellitus (prevention) Prediabetic State Obesity Blood Glucose Self-Monitoring Continuous Glucose Monitoring Diabetes Mellitus, Type 2 Telemedicine Counseling Healthy Lifestyle Randomized Controlled Trial

Interventions

Standardised online DPP-based lifestyle programme plus real-time CGM worn at weeks 4, 8 and 13, with alerts and weekly video coaching (CGM review, feedback, outreach, goal-setting).,Same online DPP-ba
Experimental Behavioral,Active Comparator Behavioral
Real time CGM with intensive coaching (rtCGM + Intensive Coaching),CGM with standard support

Sponsors

Nawinda Vanichakulthada, MD (investigator-sponsor)
Lead Sponsor

Eligibility

Sex/Gender
All
Age
30 Years to 65 Years

Inclusion criteria

Inclusion criteria: Adults aged 30 to 65 years Prediabetes documented within the past 3 months by ADA criteria (HbA1c 5.7 to 6.4%, or fasting plasma glucose 100 to 125 mg/dL, or 2-hour OGTT glucose 140 to 199 mg/dL) Obesity: BMI 25 kg/m2 or higher for Asian population, or 30 kg/m2 or higher for non-Asian population, up to 40 kg/m2 Smartphone ownership (iOS 14 or later, or Android 8 or later) with reliable internet access Access to a Zoom-capable device (computer, tablet, or smartphone) Valid mailing address in Thailand for device shipment Able to read and understand Thai or English Willing and able to provide electronic informed consent

Exclusion criteria

Exclusion criteria: Diagnosis of type 1 or type 2 diabetes mellitus Current use of glucose-lowering medications (metformin, GLP-1 receptor agonists, SGLT2 inhibitors, etc.) Use of systemic corticosteroids within the past 3 months Pregnancy, breastfeeding, or planning pregnancy during the study period History of bariatric surgery Active malignancy or cancer treatment within the past 5 years (except non-melanoma skin cancer) Known chronic kidney disease (self-reported) Known severe hepatic impairment (self-reported) Psychiatric condition that would impair participation Known allergy to sensor adhesive materials Skin conditions precluding sensor wear Participation in another interventional clinical trial within the past 30 days

Design outcomes

Primary

MeasureTime frame
Glucose Management Indicator (GMI) Baseline and week 13 (endpoint) Change in Glucose Management Indicator (GMI) derived from CGM, calculated as 3.31 plus 0.02392 times mean glucose in mg/dL

Secondary

MeasureTime frame
Time in Range (TIR) Weeks 4, 8, 13 (Arm A); week 13 (Arm B) Percent time glucose 70 to 140 mg/dL from CGM,Glycaemic variability Weeks 4, 8, 13 (Arm A); week 13 (Arm B) Coefficient of variation (CV%) and MAGE from CGM,Waist circumference Every 4 weeks Self-reported waist circumference (cm),Body weight Weekly, weeks 1 to 16 Self-reported weight (kg) and percent change from baseline,Physical activity Baseline, mid-intervention, close-out IPAQ-SF (MET-minutes per week),Quality of life Baseline and close-out DDS-2 score

Countries

Thailand

Contacts

Public ContactNawinda Vanichakulthada

Ubon Ratchathani University

nawinda.v@ubu.ac.th0619469569

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026