Glucose, Understanding, Integrated Digital Health, and Engagement (GUIDE) Study
GUIDE
2 other identifiers
interventional
300
1 country
1
Brief Summary
The purpose of this study is to evaluate whether an Integrated Digital Health (IDH) intervention with and without healthcare provider engagement, improves glycemic control and diabetes-related outcomes among adults with Type 2 diabetes. The study will also assess the feasibility of integrating this approach into routine primary care to support personalized, data-informed diabetes management.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable diabetes
Started Aug 2026
Longer than P75 for not_applicable diabetes
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 1, 2026
CompletedFirst Posted
Study publicly available on registry
July 8, 2026
CompletedStudy Start
First participant enrolled
August 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2031
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2031
July 8, 2026
July 1, 2026
4.6 years
July 1, 2026
July 1, 2026
Conditions
Outcome Measures
Primary Outcomes (3)
Mean Hemoglobin A1c (HbA1c)
HbA1c in milligrams per deciliter (mg/dL) will be measured using blood testing conducted according to the standardized procedures of the National Glycohemoglobin Standardization Program (NGSP).
Baseline, 16 weeks and 32 weeks
Mean Glucose Variability (Coefficient of Variation [%CV])
Glucose variability will be derived from continuous glucose monitoring (CGM) data and calculated as the coefficient of variation (CV = standard deviation/mean glucose × 100). This measure reflects intra- and inter-day fluctuations in glucose levels. Consistent with consensus recommendations, a CV ≤36% is considered stable glucose variability.
Baseline, 16 weeks and 32 weeks
Percentage of glucose readings with Time in Range (TIR)
TIR will be derived from CGM data and calculated as the percentage of glucose readings and time per day within the target glucose range of 70-180 mg/dL (3.9-10.0 mmol/L). Consistent with consensus recommendations, a TIR ≥70% is considered an indicator of optimal glycemic management.
Baseline, 16 weeks and 32 weeks
Secondary Outcomes (4)
Mean score Revised Summary of Diabetes Self-Care Activities (SDSCA)
Baseline, 16 weeks and 32 weeks
Mean score Diabetes Management Self-Efficacy Scale
Baseline, 16 weeks and 32 weeks
Mean score Diabetes Distress Scale
Baseline, 16 weeks and 32 weeks
Mean score Diabetes Quality of Life Brief Clinical Inventory
Baseline, 16 weeks and 32 weeks
Study Arms (3)
Group A: Continuous Glucose Monitoring (CGM)-only
NO INTERVENTIONContinuous Glucose Monitoring (CGM)-only
Group B: Integrated Digital Health (IDH) platform without provider engagement
EXPERIMENTALIDH without provider engagement
Group C: Integrated Digital Health (IDH) platform with provider engagement
EXPERIMENTALIDH with provider engagement
Interventions
CGM, wearable for physical activity and sleep, food scan/log
Weekly feedback through the IDH platform plus monthly video calls
Eligibility Criteria
You may qualify if:
- diagnosis of T2D for at least one year
- recent 3 month-HbA1c, 8-11%
- ownership of a smartphone
- English or Spanish speaking.
You may not qualify if:
- pregnant
- not available or willing to use CGM or study device/platform
- serious medical conditions or active thought disorders (e.g., terminal cancer, schizophrenia)
- In addition to the self-report of the HbA1c within the past 3 months, potential participants will be screened with a point-of-care (POC) HbA1c (A1CNow®+).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Yale School of Nursing
New Haven, Connecticut, 06477, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Soohyun Nam, PhD, APRN, ANP-BC, FAHA, FAAN
Yale University School of Nursing
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 1, 2026
First Posted
July 8, 2026
Study Start
August 1, 2026
Primary Completion (Estimated)
March 1, 2031
Study Completion (Estimated)
March 1, 2031
Last Updated
July 8, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will share
De-identified study data will be shared per NIH data sharing policy.